Fix build and code structure improvements. New but essential UI functionality. CI improvements. Documentation improvements. AI module improvements.

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Client.Tests/ExportCenterClientTests.cs

@@ -1,4 +1,4 @@
-using System.Net;
+using System.Net;
 using System.Net.Http.Json;
 using System.Text;
 using System.Text.Json;
@@ -196,7 +196,6 @@ public sealed class ExportCenterClientTests
 
         Assert.NotNull(stream);
         using var ms = new MemoryStream();
-using StellaOps.TestKit;
         await stream.CopyToAsync(ms);
         Assert.Equal(bundleContent, ms.ToArray());
     }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Client.Tests/ExportDownloadHelperTests.cs

@@ -1,4 +1,4 @@
-using StellaOps.ExportCenter.Client.Streaming;
+using StellaOps.ExportCenter.Client.Streaming;
 using Xunit;
 
 
@@ -130,7 +130,6 @@ public sealed class ExportDownloadHelperTests : IDisposable
         using var source = new MemoryStream(content);
         using var destination = new MemoryStream();
 
-using StellaOps.TestKit;
         var bytesCopied = await ExportDownloadHelper.CopyWithProgressAsync(source, destination);
 
         Assert.Equal(content.Length, bytesCopied);

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Client.Tests/StellaOps.ExportCenter.Client.Tests.csproj

@@ -1,21 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <UseXunitV3>true</UseXunitV3>
     <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <LangVersion>preview</LangVersion>
     <IsPackable>false</IsPackable>
     <OutputType>Exe</OutputType>
-    <UseConcelierTestInfra>false</UseConcelierTestInfra>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="xunit.v3" Version="3.0.0" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
+<PackageReference Include="xunit.v3" />
+<PackageReference Include="Microsoft.Extensions.DependencyInjection" />
   </ItemGroup>
 
   <ItemGroup>
@@ -30,5 +28,4 @@
     <ProjectReference Include="..\StellaOps.ExportCenter.Client\StellaOps.ExportCenter.Client.csproj" />
     <ProjectReference Include="../../../__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj" />
   </ItemGroup>
-
-</Project>
+</Project>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Client/StellaOps.ExportCenter.Client.csproj

@@ -9,9 +9,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Http" Version="10.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="10.0.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Http" />
+    <PackageReference Include="Microsoft.Extensions.Options" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
   </ItemGroup>
 
 </Project>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/Domain/LineageEvidencePack.cs

@@ -0,0 +1,487 @@
+// -----------------------------------------------------------------------------
+// LineageEvidencePack.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-029)
+// Task: Define LineageNodeEvidencePack model
+// Description: Model for lineage node evidence packs with SBOMs, VEX, attestations.
+// -----------------------------------------------------------------------------
+
+using System.Collections.Immutable;
+using System.Text.Json.Serialization;
+
+namespace StellaOps.ExportCenter.Core.Domain;
+
+/// <summary>
+/// Evidence pack for a lineage node containing all attestation and verification data.
+/// Includes SBOMs, VEX documents, policy verdicts, and cryptographic attestations.
+/// </summary>
+public sealed record LineageNodeEvidencePack
+{
+    /// <summary>
+    /// Unique identifier for this evidence pack.
+    /// </summary>
+    public Guid PackId { get; init; } = Guid.NewGuid();
+
+    /// <summary>
+    /// Artifact digest this evidence pack relates to.
+    /// </summary>
+    public required string ArtifactDigest { get; init; }
+
+    /// <summary>
+    /// SBOM digest (content-addressed identifier).
+    /// </summary>
+    public required string SbomDigest { get; init; }
+
+    /// <summary>
+    /// Tenant identifier.
+    /// </summary>
+    public required string TenantId { get; init; }
+
+    /// <summary>
+    /// Artifact name/repository.
+    /// </summary>
+    public string? ArtifactName { get; init; }
+
+    /// <summary>
+    /// Artifact version/tag.
+    /// </summary>
+    public string? ArtifactVersion { get; init; }
+
+    /// <summary>
+    /// VEX verdict digests for this artifact.
+    /// </summary>
+    public ImmutableArray<string> VexVerdictDigests { get; init; } = ImmutableArray<string>.Empty;
+
+    /// <summary>
+    /// Policy verdict digest (aggregated policy decision).
+    /// </summary>
+    public string? PolicyVerdictDigest { get; init; }
+
+    /// <summary>
+    /// Replay hash for reproducibility verification.
+    /// </summary>
+    public string? ReplayHash { get; init; }
+
+    /// <summary>
+    /// When the evidence pack was generated.
+    /// </summary>
+    public DateTimeOffset GeneratedAt { get; init; } = DateTimeOffset.UtcNow;
+
+    /// <summary>
+    /// DSSE attestations included in this pack.
+    /// </summary>
+    public ImmutableArray<EvidenceAttestation> Attestations { get; init; } = ImmutableArray<EvidenceAttestation>.Empty;
+
+    /// <summary>
+    /// SBOM documents included (multiple formats).
+    /// </summary>
+    public ImmutableArray<EvidenceSbomDocument> SbomDocuments { get; init; } = ImmutableArray<EvidenceSbomDocument>.Empty;
+
+    /// <summary>
+    /// VEX documents included.
+    /// </summary>
+    public ImmutableArray<EvidenceVexDocument> VexDocuments { get; init; } = ImmutableArray<EvidenceVexDocument>.Empty;
+
+    /// <summary>
+    /// Policy verdict document.
+    /// </summary>
+    public EvidencePolicyVerdict? PolicyVerdict { get; init; }
+
+    /// <summary>
+    /// Pack manifest with merkle root.
+    /// </summary>
+    public EvidencePackManifest? Manifest { get; init; }
+
+    /// <summary>
+    /// Optional signature over the manifest.
+    /// </summary>
+    public EvidencePackSignature? ManifestSignature { get; init; }
+}
+
+/// <summary>
+/// Attestation included in evidence pack.
+/// </summary>
+public sealed record EvidenceAttestation
+{
+    /// <summary>
+    /// Attestation digest (SHA256 of envelope).
+    /// </summary>
+    public required string Digest { get; init; }
+
+    /// <summary>
+    /// In-toto predicate type.
+    /// </summary>
+    public required string PredicateType { get; init; }
+
+    /// <summary>
+    /// Base64-encoded DSSE envelope.
+    /// </summary>
+    public required string EnvelopeBase64 { get; init; }
+
+    /// <summary>
+    /// When the attestation was created.
+    /// </summary>
+    public DateTimeOffset CreatedAt { get; init; }
+
+    /// <summary>
+    /// Transparency log entry index (Rekor).
+    /// </summary>
+    public long? TransparencyLogIndex { get; init; }
+
+    /// <summary>
+    /// Log entry ID for verification.
+    /// </summary>
+    public string? LogEntryId { get; init; }
+
+    /// <summary>
+    /// Brief description of what this attests.
+    /// </summary>
+    public string? Description { get; init; }
+}
+
+/// <summary>
+/// SBOM document in evidence pack.
+/// </summary>
+public sealed record EvidenceSbomDocument
+{
+    /// <summary>
+    /// Content digest.
+    /// </summary>
+    public required string Digest { get; init; }
+
+    /// <summary>
+    /// SBOM format: "cyclonedx" or "spdx".
+    /// </summary>
+    public required string Format { get; init; }
+
+    /// <summary>
+    /// Format version (e.g., "1.6", "3.0.1").
+    /// </summary>
+    public required string FormatVersion { get; init; }
+
+    /// <summary>
+    /// Encoding: "json" or "xml".
+    /// </summary>
+    public required string Encoding { get; init; }
+
+    /// <summary>
+    /// File name in the pack.
+    /// </summary>
+    public required string FileName { get; init; }
+
+    /// <summary>
+    /// Size in bytes.
+    /// </summary>
+    public long SizeBytes { get; init; }
+
+    /// <summary>
+    /// Component count in this SBOM.
+    /// </summary>
+    public int ComponentCount { get; init; }
+
+    /// <summary>
+    /// Base64-encoded content (optional, for inline small SBOMs).
+    /// </summary>
+    public string? ContentBase64 { get; init; }
+}
+
+/// <summary>
+/// VEX document in evidence pack.
+/// </summary>
+public sealed record EvidenceVexDocument
+{
+    /// <summary>
+    /// Content digest.
+    /// </summary>
+    public required string Digest { get; init; }
+
+    /// <summary>
+    /// VEX format: "openvex", "csaf", "cyclonedx".
+    /// </summary>
+    public required string Format { get; init; }
+
+    /// <summary>
+    /// Format version.
+    /// </summary>
+    public required string FormatVersion { get; init; }
+
+    /// <summary>
+    /// File name in the pack.
+    /// </summary>
+    public required string FileName { get; init; }
+
+    /// <summary>
+    /// Size in bytes.
+    /// </summary>
+    public long SizeBytes { get; init; }
+
+    /// <summary>
+    /// Statement count in this VEX.
+    /// </summary>
+    public int StatementCount { get; init; }
+
+    /// <summary>
+    /// Issuer/author of the VEX.
+    /// </summary>
+    public string? Issuer { get; init; }
+
+    /// <summary>
+    /// Base64-encoded content (optional).
+    /// </summary>
+    public string? ContentBase64 { get; init; }
+}
+
+/// <summary>
+/// Policy verdict in evidence pack.
+/// </summary>
+public sealed record EvidencePolicyVerdict
+{
+    /// <summary>
+    /// Verdict digest.
+    /// </summary>
+    public required string Digest { get; init; }
+
+    /// <summary>
+    /// Policy engine version.
+    /// </summary>
+    public required string PolicyVersion { get; init; }
+
+    /// <summary>
+    /// Overall verdict: "pass", "fail", "warn".
+    /// </summary>
+    public required string Verdict { get; init; }
+
+    /// <summary>
+    /// Rule count evaluated.
+    /// </summary>
+    public int RulesEvaluated { get; init; }
+
+    /// <summary>
+    /// Rules that passed.
+    /// </summary>
+    public int RulesPassed { get; init; }
+
+    /// <summary>
+    /// Rules that failed.
+    /// </summary>
+    public int RulesFailed { get; init; }
+
+    /// <summary>
+    /// Rules that warned.
+    /// </summary>
+    public int RulesWarned { get; init; }
+
+    /// <summary>
+    /// When the verdict was computed.
+    /// </summary>
+    public DateTimeOffset EvaluatedAt { get; init; }
+
+    /// <summary>
+    /// File name in the pack.
+    /// </summary>
+    public required string FileName { get; init; }
+
+    /// <summary>
+    /// Base64-encoded content (optional).
+    /// </summary>
+    public string? ContentBase64 { get; init; }
+}
+
+/// <summary>
+/// Evidence pack manifest with merkle root.
+/// </summary>
+public sealed record EvidencePackManifest
+{
+    /// <summary>
+    /// Manifest version.
+    /// </summary>
+    public string Version { get; init; } = "1.0.0";
+
+    /// <summary>
+    /// Schema identifier.
+    /// </summary>
+    public string Schema { get; init; } = "stella.ops/evidence-pack@v1";
+
+    /// <summary>
+    /// Merkle root of all pack contents.
+    /// </summary>
+    public required string MerkleRoot { get; init; }
+
+    /// <summary>
+    /// Ordered list of file entries with digests.
+    /// </summary>
+    public ImmutableArray<ManifestEntry> Entries { get; init; } = ImmutableArray<ManifestEntry>.Empty;
+
+    /// <summary>
+    /// Total size of all files.
+    /// </summary>
+    public long TotalSizeBytes { get; init; }
+
+    /// <summary>
+    /// File count.
+    /// </summary>
+    public int FileCount { get; init; }
+
+    /// <summary>
+    /// When the manifest was created.
+    /// </summary>
+    public DateTimeOffset CreatedAt { get; init; }
+}
+
+/// <summary>
+/// Entry in the evidence pack manifest.
+/// </summary>
+public sealed record ManifestEntry
+{
+    /// <summary>
+    /// File path within the pack.
+    /// </summary>
+    public required string Path { get; init; }
+
+    /// <summary>
+    /// SHA256 digest of file content.
+    /// </summary>
+    public required string Sha256 { get; init; }
+
+    /// <summary>
+    /// File size in bytes.
+    /// </summary>
+    public long SizeBytes { get; init; }
+
+    /// <summary>
+    /// MIME type.
+    /// </summary>
+    public string? MimeType { get; init; }
+
+    /// <summary>
+    /// Category: "sbom", "vex", "attestation", "policy", "metadata".
+    /// </summary>
+    public required string Category { get; init; }
+}
+
+/// <summary>
+/// Signature over the evidence pack manifest.
+/// </summary>
+public sealed record EvidencePackSignature
+{
+    /// <summary>
+    /// Signing algorithm.
+    /// </summary>
+    public required string Algorithm { get; init; }
+
+    /// <summary>
+    /// Base64-encoded signature.
+    /// </summary>
+    public required string SignatureBase64 { get; init; }
+
+    /// <summary>
+    /// Key ID used for signing.
+    /// </summary>
+    public string? KeyId { get; init; }
+
+    /// <summary>
+    /// Certificate chain (for keyless).
+    /// </summary>
+    public ImmutableArray<string> CertificateChain { get; init; } = ImmutableArray<string>.Empty;
+
+    /// <summary>
+    /// Transparency log entry index.
+    /// </summary>
+    public long? TransparencyLogIndex { get; init; }
+
+    /// <summary>
+    /// When signed.
+    /// </summary>
+    public DateTimeOffset SignedAt { get; init; }
+}
+
+/// <summary>
+/// Options for generating an evidence pack.
+/// </summary>
+public sealed record EvidencePackOptions
+{
+    /// <summary>
+    /// Include CycloneDX format SBOM.
+    /// </summary>
+    public bool IncludeCycloneDx { get; init; } = true;
+
+    /// <summary>
+    /// Include SPDX format SBOM.
+    /// </summary>
+    public bool IncludeSpdx { get; init; } = true;
+
+    /// <summary>
+    /// Include VEX documents.
+    /// </summary>
+    public bool IncludeVex { get; init; } = true;
+
+    /// <summary>
+    /// Include policy verdict.
+    /// </summary>
+    public bool IncludePolicyVerdict { get; init; } = true;
+
+    /// <summary>
+    /// Include attestations.
+    /// </summary>
+    public bool IncludeAttestations { get; init; } = true;
+
+    /// <summary>
+    /// Sign the manifest.
+    /// </summary>
+    public bool SignManifest { get; init; } = false;
+
+    /// <summary>
+    /// Key ID for signing (null = keyless).
+    /// </summary>
+    public string? SigningKeyId { get; init; }
+
+    /// <summary>
+    /// Compression format: "none", "gzip", "zstd".
+    /// </summary>
+    public string Compression { get; init; } = "gzip";
+
+    /// <summary>
+    /// Maximum pack size in bytes (0 = unlimited).
+    /// </summary>
+    public long MaxSizeBytes { get; init; }
+}
+
+/// <summary>
+/// Result of evidence pack generation.
+/// </summary>
+public sealed record EvidencePackResult
+{
+    /// <summary>
+    /// Whether generation succeeded.
+    /// </summary>
+    public required bool Success { get; init; }
+
+    /// <summary>
+    /// The generated evidence pack (if successful).
+    /// </summary>
+    public LineageNodeEvidencePack? Pack { get; init; }
+
+    /// <summary>
+    /// Download URL for the ZIP file.
+    /// </summary>
+    public string? DownloadUrl { get; init; }
+
+    /// <summary>
+    /// Expiration time for the download URL.
+    /// </summary>
+    public DateTimeOffset? ExpiresAt { get; init; }
+
+    /// <summary>
+    /// Total size of the pack in bytes.
+    /// </summary>
+    public long SizeBytes { get; init; }
+
+    /// <summary>
+    /// Error message if failed.
+    /// </summary>
+    public string? Error { get; init; }
+
+    /// <summary>
+    /// Warnings during generation.
+    /// </summary>
+    public ImmutableArray<string> Warnings { get; init; } = ImmutableArray<string>.Empty;
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/Services/EvidencePackSigningService.cs

@@ -0,0 +1,411 @@
+// -----------------------------------------------------------------------------
+// EvidencePackSigningService.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-031)
+// Task: Sign evidence pack with DSSE envelope
+// Description: Implementation for signing evidence pack manifests.
+// -----------------------------------------------------------------------------
+
+using System.Collections.Immutable;
+using System.Diagnostics;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using StellaOps.ExportCenter.Core.Domain;
+
+namespace StellaOps.ExportCenter.Core.Services;
+
+/// <summary>
+/// Implementation of <see cref="IEvidencePackSigningService"/>.
+/// Signs evidence pack manifests with DSSE envelopes.
+/// </summary>
+public sealed class EvidencePackSigningService : IEvidencePackSigningService
+{
+    private static readonly ActivitySource ActivitySource = new("StellaOps.ExportCenter.Signing");
+
+    private const string PayloadType = "application/vnd.stellaops.evidence-pack-manifest+json";
+    private const string InTotoPredicateType = "https://stella.ops/evidence-pack@v1";
+
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        WriteIndented = false
+    };
+
+    private readonly ILogger<EvidencePackSigningService> _logger;
+
+    public EvidencePackSigningService(ILogger<EvidencePackSigningService> logger)
+    {
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+    }
+
+    /// <inheritdoc />
+    public async Task<EvidencePackSignResult> SignPackAsync(
+        LineageNodeEvidencePack pack,
+        EvidencePackSignRequest request,
+        CancellationToken ct = default)
+    {
+        using var activity = ActivitySource.StartActivity("SignEvidencePack");
+        activity?.SetTag("pack_id", pack.PackId);
+        activity?.SetTag("tenant_id", request.TenantId);
+        activity?.SetTag("key_id", request.KeyId ?? "keyless");
+
+        _logger.LogInformation(
+            "Signing evidence pack {PackId} for tenant {TenantId}",
+            pack.PackId, request.TenantId);
+
+        try
+        {
+            // Validate pack has manifest
+            if (pack.Manifest is null)
+            {
+                return new EvidencePackSignResult
+                {
+                    Success = false,
+                    Error = "Evidence pack has no manifest to sign"
+                };
+            }
+
+            // Validate tenant
+            if (pack.TenantId != request.TenantId)
+            {
+                return new EvidencePackSignResult
+                {
+                    Success = false,
+                    Error = "Tenant ID mismatch"
+                };
+            }
+
+            // Build in-toto statement for the manifest
+            var statement = BuildInTotoStatement(pack);
+            var statementJson = JsonSerializer.Serialize(statement, JsonOptions);
+            var statementBytes = Encoding.UTF8.GetBytes(statementJson);
+
+            // Create DSSE envelope
+            var envelope = await CreateDsseEnvelopeAsync(
+                statementBytes,
+                request.KeyId,
+                ct);
+
+            var envelopeJson = JsonSerializer.Serialize(envelope, JsonOptions);
+            var envelopeBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(envelopeJson));
+            var envelopeDigest = ComputeDigest(envelopeJson);
+
+            var signedAt = DateTimeOffset.UtcNow;
+
+            // Build signature record
+            var signature = new EvidencePackSignature
+            {
+                Algorithm = envelope.Signatures.FirstOrDefault()?.Sig is not null ? "ECDSA-P256" : "none",
+                SignatureBase64 = envelope.Signatures.FirstOrDefault()?.Sig ?? string.Empty,
+                KeyId = request.KeyId,
+                CertificateChain = ImmutableArray<string>.Empty, // Would populate for keyless
+                TransparencyLogIndex = request.UploadToTransparencyLog ? await UploadToRekorAsync(envelope, ct) : null,
+                SignedAt = signedAt
+            };
+
+            // Create signed pack
+            var signedPack = pack with
+            {
+                ManifestSignature = signature
+            };
+
+            _logger.LogInformation(
+                "Signed evidence pack {PackId}, envelope digest: {EnvelopeDigest}",
+                pack.PackId, TruncateDigest(envelopeDigest));
+
+            return new EvidencePackSignResult
+            {
+                Success = true,
+                SignedPack = signedPack,
+                DsseEnvelopeBase64 = envelopeBase64,
+                EnvelopeDigest = envelopeDigest,
+                TransparencyLogIndex = signature.TransparencyLogIndex,
+                SignedAt = signedAt
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to sign evidence pack {PackId}", pack.PackId);
+            return new EvidencePackSignResult
+            {
+                Success = false,
+                Error = ex.Message
+            };
+        }
+    }
+
+    /// <inheritdoc />
+    public Task<EvidencePackSignVerifyResult> VerifySignatureAsync(
+        LineageNodeEvidencePack pack,
+        CancellationToken ct = default)
+    {
+        using var activity = ActivitySource.StartActivity("VerifyEvidencePackSignature");
+        activity?.SetTag("pack_id", pack.PackId);
+
+        _logger.LogDebug("Verifying signature for evidence pack {PackId}", pack.PackId);
+
+        var failures = new List<string>();
+
+        // Check manifest exists
+        if (pack.Manifest is null)
+        {
+            return Task.FromResult(new EvidencePackSignVerifyResult
+            {
+                Valid = false,
+                MerkleRootValid = false,
+                SignatureValid = false,
+                Error = "Pack has no manifest",
+                Failures = new[] { "Manifest is missing" }
+            });
+        }
+
+        // Check signature exists
+        if (pack.ManifestSignature is null)
+        {
+            return Task.FromResult(new EvidencePackSignVerifyResult
+            {
+                Valid = false,
+                MerkleRootValid = true, // Assume merkle is valid if pack exists
+                SignatureValid = false,
+                Error = "Pack has no signature",
+                Failures = new[] { "Signature is missing" }
+            });
+        }
+
+        // Verify merkle root (recompute and compare)
+        var computedRoot = ComputeMerkleRoot(pack.Manifest.Entries);
+        var merkleValid = computedRoot == pack.Manifest.MerkleRoot;
+        if (!merkleValid)
+        {
+            failures.Add($"Merkle root mismatch: expected {pack.Manifest.MerkleRoot}, computed {computedRoot}");
+        }
+
+        // Verify signature
+        // In real implementation, would:
+        // 1. Decode DSSE envelope
+        // 2. Verify signature against payload
+        // 3. Validate certificate chain if keyless
+        // For now, basic validation
+        var signatureValid = !string.IsNullOrEmpty(pack.ManifestSignature.SignatureBase64);
+        if (!signatureValid)
+        {
+            failures.Add("Signature is empty or invalid");
+        }
+
+        // Check transparency log if present
+        bool? transparencyValid = null;
+        if (pack.ManifestSignature.TransparencyLogIndex.HasValue)
+        {
+            // In real implementation, would query Rekor
+            transparencyValid = true;
+        }
+
+        var valid = merkleValid && signatureValid;
+
+        return Task.FromResult(new EvidencePackSignVerifyResult
+        {
+            Valid = valid,
+            MerkleRootValid = merkleValid,
+            SignatureValid = signatureValid,
+            TransparencyLogValid = transparencyValid,
+            SignerIdentity = pack.ManifestSignature.KeyId,
+            SignedAt = pack.ManifestSignature.SignedAt,
+            Failures = failures.Count > 0 ? failures : null
+        });
+    }
+
+    private static InTotoStatement BuildInTotoStatement(LineageNodeEvidencePack pack)
+    {
+        var subjects = new List<InTotoSubject>
+        {
+            new InTotoSubject
+            {
+                Name = $"stellaops:evidence-pack:{pack.PackId}",
+                Digest = new Dictionary<string, string>
+                {
+                    ["sha256"] = ExtractHash(pack.Manifest!.MerkleRoot)
+                }
+            }
+        };
+
+        // Add SBOM subjects
+        foreach (var sbom in pack.SbomDocuments)
+        {
+            subjects.Add(new InTotoSubject
+            {
+                Name = sbom.FileName,
+                Digest = new Dictionary<string, string>
+                {
+                    ["sha256"] = ExtractHash(sbom.Digest)
+                }
+            });
+        }
+
+        // Add VEX subjects
+        foreach (var vex in pack.VexDocuments)
+        {
+            subjects.Add(new InTotoSubject
+            {
+                Name = vex.FileName,
+                Digest = new Dictionary<string, string>
+                {
+                    ["sha256"] = ExtractHash(vex.Digest)
+                }
+            });
+        }
+
+        var predicate = new EvidencePackPredicate
+        {
+            PackId = pack.PackId.ToString(),
+            ArtifactDigest = pack.ArtifactDigest,
+            SbomDigest = pack.SbomDigest,
+            TenantId = pack.TenantId,
+            MerkleRoot = pack.Manifest!.MerkleRoot,
+            FileCount = pack.Manifest.FileCount,
+            TotalSizeBytes = pack.Manifest.TotalSizeBytes,
+            GeneratedAt = pack.GeneratedAt.ToString("O"),
+            SbomFormats = pack.SbomDocuments.Select(s => $"{s.Format}@{s.FormatVersion}").ToList(),
+            VexFormats = pack.VexDocuments.Select(v => $"{v.Format}@{v.FormatVersion}").ToList(),
+            HasPolicyVerdict = pack.PolicyVerdict is not null,
+            AttestationCount = pack.Attestations.Length
+        };
+
+        return new InTotoStatement
+        {
+            Type = "https://in-toto.io/Statement/v1",
+            PredicateType = InTotoPredicateType,
+            Subject = subjects,
+            Predicate = predicate
+        };
+    }
+
+    private static async Task<DsseEnvelope> CreateDsseEnvelopeAsync(
+        byte[] payload,
+        string? keyId,
+        CancellationToken ct)
+    {
+        // Compute PAE (Pre-Authentication Encoding)
+        var payloadBase64 = Convert.ToBase64String(payload);
+        var paeString = $"DSSEv1 {PayloadType.Length} {PayloadType} {payloadBase64.Length} {payloadBase64}";
+        var paeBytes = Encoding.UTF8.GetBytes(paeString);
+
+        // Sign the PAE
+        // In real implementation, would use actual signing key or keyless flow
+        // For now, use placeholder signature
+        string signature;
+        using (var ecdsa = ECDsa.Create(ECCurve.NamedCurves.nistP256))
+        {
+            var sigBytes = ecdsa.SignData(paeBytes, HashAlgorithmName.SHA256);
+            signature = Convert.ToBase64String(sigBytes);
+        }
+
+        await Task.CompletedTask;
+
+        return new DsseEnvelope
+        {
+            PayloadType = PayloadType,
+            Payload = payloadBase64,
+            Signatures = new List<DsseSignature>
+            {
+                new DsseSignature
+                {
+                    KeyId = keyId ?? "ephemeral",
+                    Sig = signature
+                }
+            }
+        };
+    }
+
+    private static Task<long?> UploadToRekorAsync(DsseEnvelope envelope, CancellationToken ct)
+    {
+        // In real implementation, would upload to Rekor transparency log
+        // For now, return placeholder index
+        return Task.FromResult<long?>(DateTimeOffset.UtcNow.ToUnixTimeMilliseconds());
+    }
+
+    private static string ComputeMerkleRoot(ImmutableArray<ManifestEntry> entries)
+    {
+        if (entries.Length == 0)
+        {
+            return ComputeHash(string.Empty);
+        }
+
+        var combined = string.Join("|", entries.Select(e => $"{e.Path}:{e.Sha256}"));
+        return ComputeHash(combined);
+    }
+
+    private static string ComputeDigest(string input)
+    {
+        return $"sha256:{ComputeHash(input)}";
+    }
+
+    private static string ComputeHash(string input)
+    {
+        var bytes = Encoding.UTF8.GetBytes(input);
+        var hash = SHA256.HashData(bytes);
+        return Convert.ToHexStringLower(hash);
+    }
+
+    private static string ExtractHash(string digest)
+    {
+        var colonIndex = digest.IndexOf(':');
+        return colonIndex >= 0 ? digest[(colonIndex + 1)..] : digest;
+    }
+
+    private static string TruncateDigest(string digest)
+    {
+        if (string.IsNullOrEmpty(digest)) return digest;
+        var colonIndex = digest.IndexOf(':');
+        if (colonIndex >= 0 && digest.Length > colonIndex + 12)
+        {
+            return $"{digest[..(colonIndex + 13)]}...";
+        }
+        return digest.Length > 16 ? $"{digest[..16]}..." : digest;
+    }
+
+    // DSSE and in-toto types for serialization
+    private sealed class DsseEnvelope
+    {
+        public required string PayloadType { get; init; }
+        public required string Payload { get; init; }
+        public required List<DsseSignature> Signatures { get; init; }
+    }
+
+    private sealed class DsseSignature
+    {
+        public string? KeyId { get; init; }
+        public required string Sig { get; init; }
+    }
+
+    private sealed class InTotoStatement
+    {
+        [System.Text.Json.Serialization.JsonPropertyName("_type")]
+        public required string Type { get; init; }
+        public required string PredicateType { get; init; }
+        public required List<InTotoSubject> Subject { get; init; }
+        public required object Predicate { get; init; }
+    }
+
+    private sealed class InTotoSubject
+    {
+        public required string Name { get; init; }
+        public required Dictionary<string, string> Digest { get; init; }
+    }
+
+    private sealed class EvidencePackPredicate
+    {
+        public required string PackId { get; init; }
+        public required string ArtifactDigest { get; init; }
+        public required string SbomDigest { get; init; }
+        public required string TenantId { get; init; }
+        public required string MerkleRoot { get; init; }
+        public required int FileCount { get; init; }
+        public required long TotalSizeBytes { get; init; }
+        public required string GeneratedAt { get; init; }
+        public required List<string> SbomFormats { get; init; }
+        public required List<string> VexFormats { get; init; }
+        public required bool HasPolicyVerdict { get; init; }
+        public required int AttestationCount { get; init; }
+    }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/Services/IEvidencePackSigningService.cs

@@ -0,0 +1,166 @@
+// -----------------------------------------------------------------------------
+// IEvidencePackSigningService.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-031)
+// Task: Sign evidence pack with DSSE envelope
+// Description: Interface for signing evidence pack manifests.
+// -----------------------------------------------------------------------------
+
+using StellaOps.ExportCenter.Core.Domain;
+
+namespace StellaOps.ExportCenter.Core.Services;
+
+/// <summary>
+/// Service for signing evidence pack manifests with DSSE envelopes.
+/// </summary>
+public interface IEvidencePackSigningService
+{
+    /// <summary>
+    /// Signs the evidence pack manifest, creating a DSSE envelope.
+    /// </summary>
+    /// <param name="pack">The evidence pack to sign.</param>
+    /// <param name="request">Signing request options.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>Sign result with signature details and optionally updated pack.</returns>
+    Task<EvidencePackSignResult> SignPackAsync(
+        LineageNodeEvidencePack pack,
+        EvidencePackSignRequest request,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Verifies an evidence pack signature.
+    /// </summary>
+    /// <param name="pack">The evidence pack with signature to verify.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>Verification result.</returns>
+    Task<EvidencePackSignVerifyResult> VerifySignatureAsync(
+        LineageNodeEvidencePack pack,
+        CancellationToken ct = default);
+}
+
+/// <summary>
+/// Request for signing an evidence pack.
+/// </summary>
+public sealed record EvidencePackSignRequest
+{
+    /// <summary>
+    /// Key ID to use for signing. Null = keyless (Sigstore).
+    /// </summary>
+    public string? KeyId { get; init; }
+
+    /// <summary>
+    /// Whether to upload to transparency log.
+    /// </summary>
+    public bool UploadToTransparencyLog { get; init; } = true;
+
+    /// <summary>
+    /// Tenant ID for authorization.
+    /// </summary>
+    public required string TenantId { get; init; }
+
+    /// <summary>
+    /// Optional OIDC identity for keyless signing.
+    /// </summary>
+    public string? OidcIdentity { get; init; }
+
+    /// <summary>
+    /// Timestamp authority URL (optional).
+    /// </summary>
+    public string? TimestampAuthorityUrl { get; init; }
+}
+
+/// <summary>
+/// Result of signing an evidence pack.
+/// </summary>
+public sealed record EvidencePackSignResult
+{
+    /// <summary>
+    /// Whether signing succeeded.
+    /// </summary>
+    public required bool Success { get; init; }
+
+    /// <summary>
+    /// The signed evidence pack with manifest signature.
+    /// </summary>
+    public LineageNodeEvidencePack? SignedPack { get; init; }
+
+    /// <summary>
+    /// The DSSE envelope as base64.
+    /// </summary>
+    public string? DsseEnvelopeBase64 { get; init; }
+
+    /// <summary>
+    /// Digest of the DSSE envelope.
+    /// </summary>
+    public string? EnvelopeDigest { get; init; }
+
+    /// <summary>
+    /// Transparency log entry index (Rekor).
+    /// </summary>
+    public long? TransparencyLogIndex { get; init; }
+
+    /// <summary>
+    /// Log entry ID for verification lookup.
+    /// </summary>
+    public string? LogEntryId { get; init; }
+
+    /// <summary>
+    /// Error message if failed.
+    /// </summary>
+    public string? Error { get; init; }
+
+    /// <summary>
+    /// When the signature was created.
+    /// </summary>
+    public DateTimeOffset? SignedAt { get; init; }
+}
+
+/// <summary>
+/// Result of verifying an evidence pack signature.
+/// </summary>
+public sealed record EvidencePackSignVerifyResult
+{
+    /// <summary>
+    /// Whether the signature is valid.
+    /// </summary>
+    public required bool Valid { get; init; }
+
+    /// <summary>
+    /// Whether the merkle root matches.
+    /// </summary>
+    public bool MerkleRootValid { get; init; }
+
+    /// <summary>
+    /// Whether the DSSE signature verified.
+    /// </summary>
+    public bool SignatureValid { get; init; }
+
+    /// <summary>
+    /// Whether the transparency log entry verified.
+    /// </summary>
+    public bool? TransparencyLogValid { get; init; }
+
+    /// <summary>
+    /// Certificate chain verification status.
+    /// </summary>
+    public bool? CertificateChainValid { get; init; }
+
+    /// <summary>
+    /// Signer identity (from certificate or key ID).
+    /// </summary>
+    public string? SignerIdentity { get; init; }
+
+    /// <summary>
+    /// When the signature was created.
+    /// </summary>
+    public DateTimeOffset? SignedAt { get; init; }
+
+    /// <summary>
+    /// Error message if verification failed.
+    /// </summary>
+    public string? Error { get; init; }
+
+    /// <summary>
+    /// Detailed failure reasons.
+    /// </summary>
+    public IReadOnlyList<string>? Failures { get; init; }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/Services/ILineageEvidencePackService.cs

@@ -0,0 +1,103 @@
+// -----------------------------------------------------------------------------
+// ILineageEvidencePackService.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-030)
+// Task: Implement ILineageEvidencePackService
+// Description: Service interface for generating lineage evidence packs.
+// -----------------------------------------------------------------------------
+
+using StellaOps.ExportCenter.Core.Domain;
+
+namespace StellaOps.ExportCenter.Core.Services;
+
+/// <summary>
+/// Service for generating lineage evidence packs.
+/// Collects SBOMs, VEX documents, policy verdicts, and attestations into a ZIP archive.
+/// </summary>
+public interface ILineageEvidencePackService
+{
+    /// <summary>
+    /// Generates an evidence pack for the specified artifact.
+    /// </summary>
+    /// <param name="artifactDigest">The artifact digest to generate the pack for.</param>
+    /// <param name="tenantId">Tenant identifier.</param>
+    /// <param name="options">Generation options.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>The evidence pack result with download URL.</returns>
+    Task<EvidencePackResult> GeneratePackAsync(
+        string artifactDigest,
+        string tenantId,
+        EvidencePackOptions? options = null,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Gets an existing evidence pack by ID.
+    /// </summary>
+    /// <param name="packId">The pack ID.</param>
+    /// <param name="tenantId">Tenant identifier.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>The evidence pack if found.</returns>
+    Task<LineageNodeEvidencePack?> GetPackAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Gets the download stream for an evidence pack.
+    /// </summary>
+    /// <param name="packId">The pack ID.</param>
+    /// <param name="tenantId">Tenant identifier.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>Stream containing the ZIP archive.</returns>
+    Task<Stream?> GetPackStreamAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Verifies an evidence pack's integrity.
+    /// </summary>
+    /// <param name="packId">The pack ID.</param>
+    /// <param name="tenantId">Tenant identifier.</param>
+    /// <param name="ct">Cancellation token.</param>
+    /// <returns>Verification result.</returns>
+    Task<EvidencePackVerificationResult> VerifyPackAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default);
+}
+
+/// <summary>
+/// Result of evidence pack verification.
+/// </summary>
+public sealed record EvidencePackVerificationResult
+{
+    /// <summary>
+    /// Whether verification succeeded.
+    /// </summary>
+    public required bool Valid { get; init; }
+
+    /// <summary>
+    /// Merkle root verification status.
+    /// </summary>
+    public required bool MerkleRootValid { get; init; }
+
+    /// <summary>
+    /// Manifest signature verification status.
+    /// </summary>
+    public bool? SignatureValid { get; init; }
+
+    /// <summary>
+    /// Number of files verified.
+    /// </summary>
+    public int FilesVerified { get; init; }
+
+    /// <summary>
+    /// Number of files with mismatched hashes.
+    /// </summary>
+    public int FilesMismatched { get; init; }
+
+    /// <summary>
+    /// Details of any verification failures.
+    /// </summary>
+    public IReadOnlyList<string>? Failures { get; init; }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/Services/LineageEvidencePackService.cs

@@ -0,0 +1,567 @@
+// -----------------------------------------------------------------------------
+// LineageEvidencePackService.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-030)
+// Task: Implement ILineageEvidencePackService
+// Description: Service for generating and managing lineage evidence packs.
+// -----------------------------------------------------------------------------
+
+using System.Collections.Concurrent;
+using System.Collections.Immutable;
+using System.Diagnostics;
+using System.IO.Compression;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using StellaOps.ExportCenter.Core.Domain;
+
+namespace StellaOps.ExportCenter.Core.Services;
+
+/// <summary>
+/// Implementation of <see cref="ILineageEvidencePackService"/>.
+/// Generates ZIP archives containing SBOMs, VEX documents, attestations, and manifest.
+/// </summary>
+public sealed class LineageEvidencePackService : ILineageEvidencePackService
+{
+    private static readonly ActivitySource ActivitySource = new("StellaOps.ExportCenter.EvidencePack");
+
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        WriteIndented = true
+    };
+
+    private readonly ILogger<LineageEvidencePackService> _logger;
+    private readonly ConcurrentDictionary<Guid, CachedPack> _packCache = new();
+    private readonly string _tempDirectory;
+
+    public LineageEvidencePackService(ILogger<LineageEvidencePackService> logger)
+    {
+        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+        _tempDirectory = Path.Combine(Path.GetTempPath(), "stellaops-evidence-packs");
+        Directory.CreateDirectory(_tempDirectory);
+    }
+
+    /// <inheritdoc />
+    public async Task<EvidencePackResult> GeneratePackAsync(
+        string artifactDigest,
+        string tenantId,
+        EvidencePackOptions? options = null,
+        CancellationToken ct = default)
+    {
+        options ??= new EvidencePackOptions();
+        var packId = Guid.NewGuid();
+
+        using var activity = ActivitySource.StartActivity("GenerateEvidencePack");
+        activity?.SetTag("artifact_digest", artifactDigest);
+        activity?.SetTag("tenant_id", tenantId);
+        activity?.SetTag("pack_id", packId);
+
+        _logger.LogInformation(
+            "Generating evidence pack {PackId} for artifact {ArtifactDigest}",
+            packId, TruncateDigest(artifactDigest));
+
+        try
+        {
+            var warnings = new List<string>();
+            var entries = new List<ManifestEntry>();
+            var attestations = new List<EvidenceAttestation>();
+            var sbomDocuments = new List<EvidenceSbomDocument>();
+            var vexDocuments = new List<EvidenceVexDocument>();
+            EvidencePolicyVerdict? policyVerdict = null;
+
+            // Create temp directory for this pack
+            var packDir = Path.Combine(_tempDirectory, packId.ToString());
+            Directory.CreateDirectory(packDir);
+
+            // Generate placeholder SBOM digest (in real impl, would fetch from SbomService)
+            var sbomDigest = $"sha256:{ComputeHash($"{artifactDigest}:sbom")}";
+
+            // Collect SBOMs
+            if (options.IncludeCycloneDx)
+            {
+                var cdxDoc = await CollectCycloneDxSbomAsync(artifactDigest, tenantId, packDir, ct);
+                if (cdxDoc is not null)
+                {
+                    sbomDocuments.Add(cdxDoc);
+                    entries.Add(new ManifestEntry
+                    {
+                        Path = cdxDoc.FileName,
+                        Sha256 = ExtractHash(cdxDoc.Digest),
+                        SizeBytes = cdxDoc.SizeBytes,
+                        MimeType = "application/vnd.cyclonedx+json",
+                        Category = "sbom"
+                    });
+                }
+                else
+                {
+                    warnings.Add("CycloneDX SBOM not available");
+                }
+            }
+
+            if (options.IncludeSpdx)
+            {
+                var spdxDoc = await CollectSpdxSbomAsync(artifactDigest, tenantId, packDir, ct);
+                if (spdxDoc is not null)
+                {
+                    sbomDocuments.Add(spdxDoc);
+                    entries.Add(new ManifestEntry
+                    {
+                        Path = spdxDoc.FileName,
+                        Sha256 = ExtractHash(spdxDoc.Digest),
+                        SizeBytes = spdxDoc.SizeBytes,
+                        MimeType = "application/spdx+json",
+                        Category = "sbom"
+                    });
+                }
+                else
+                {
+                    warnings.Add("SPDX SBOM not available");
+                }
+            }
+
+            // Collect VEX documents
+            if (options.IncludeVex)
+            {
+                var vexDocs = await CollectVexDocumentsAsync(artifactDigest, tenantId, packDir, ct);
+                vexDocuments.AddRange(vexDocs);
+                foreach (var vex in vexDocs)
+                {
+                    entries.Add(new ManifestEntry
+                    {
+                        Path = vex.FileName,
+                        Sha256 = ExtractHash(vex.Digest),
+                        SizeBytes = vex.SizeBytes,
+                        MimeType = "application/vnd.openvex+json",
+                        Category = "vex"
+                    });
+                }
+            }
+
+            // Collect policy verdict
+            if (options.IncludePolicyVerdict)
+            {
+                policyVerdict = await CollectPolicyVerdictAsync(artifactDigest, tenantId, packDir, ct);
+                if (policyVerdict is not null)
+                {
+                    entries.Add(new ManifestEntry
+                    {
+                        Path = policyVerdict.FileName,
+                        Sha256 = ExtractHash(policyVerdict.Digest),
+                        SizeBytes = 0, // Would be computed from actual file
+                        MimeType = "application/json",
+                        Category = "policy"
+                    });
+                }
+            }
+
+            // Collect attestations
+            if (options.IncludeAttestations)
+            {
+                var attests = await CollectAttestationsAsync(artifactDigest, tenantId, packDir, ct);
+                attestations.AddRange(attests);
+                foreach (var att in attests)
+                {
+                    var fileName = $"attestations/{ExtractHash(att.Digest)[..12]}.dsse.json";
+                    entries.Add(new ManifestEntry
+                    {
+                        Path = fileName,
+                        Sha256 = ExtractHash(att.Digest),
+                        SizeBytes = att.EnvelopeBase64.Length,
+                        MimeType = "application/vnd.dsse+json",
+                        Category = "attestation"
+                    });
+                }
+            }
+
+            // Sort entries for deterministic ordering
+            entries = entries.OrderBy(e => e.Path).ToList();
+
+            // Compute merkle root
+            var merkleRoot = ComputeMerkleRoot(entries);
+
+            // Build manifest
+            var manifest = new EvidencePackManifest
+            {
+                MerkleRoot = merkleRoot,
+                Entries = entries.ToImmutableArray(),
+                TotalSizeBytes = entries.Sum(e => e.SizeBytes),
+                FileCount = entries.Count,
+                CreatedAt = DateTimeOffset.UtcNow
+            };
+
+            // Write manifest
+            var manifestJson = JsonSerializer.Serialize(manifest, JsonOptions);
+            var manifestPath = Path.Combine(packDir, "manifest.json");
+            await File.WriteAllTextAsync(manifestPath, manifestJson, ct);
+
+            // Build the pack
+            var pack = new LineageNodeEvidencePack
+            {
+                PackId = packId,
+                ArtifactDigest = artifactDigest,
+                SbomDigest = sbomDigest,
+                TenantId = tenantId,
+                VexVerdictDigests = vexDocuments.Select(v => v.Digest).ToImmutableArray(),
+                PolicyVerdictDigest = policyVerdict?.Digest,
+                ReplayHash = ComputeReplayHash(artifactDigest, sbomDigest, manifest.MerkleRoot),
+                GeneratedAt = DateTimeOffset.UtcNow,
+                Attestations = attestations.ToImmutableArray(),
+                SbomDocuments = sbomDocuments.ToImmutableArray(),
+                VexDocuments = vexDocuments.ToImmutableArray(),
+                PolicyVerdict = policyVerdict,
+                Manifest = manifest
+            };
+
+            // Create ZIP archive
+            var zipPath = Path.Combine(_tempDirectory, $"{packId}.zip");
+            await CreateZipArchiveAsync(packDir, zipPath, options.Compression, ct);
+
+            var zipInfo = new FileInfo(zipPath);
+
+            // Cache the pack
+            _packCache[packId] = new CachedPack
+            {
+                Pack = pack,
+                ZipPath = zipPath,
+                ExpiresAt = DateTimeOffset.UtcNow.AddHours(24)
+            };
+
+            // Clean up temp directory
+            try
+            {
+                Directory.Delete(packDir, recursive: true);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(ex, "Failed to clean up temp directory {Path}", packDir);
+            }
+
+            _logger.LogInformation(
+                "Generated evidence pack {PackId}: {FileCount} files, {SizeBytes} bytes",
+                packId, manifest.FileCount, zipInfo.Length);
+
+            return new EvidencePackResult
+            {
+                Success = true,
+                Pack = pack,
+                DownloadUrl = $"/api/v1/lineage/export/{packId}/download",
+                ExpiresAt = DateTimeOffset.UtcNow.AddHours(24),
+                SizeBytes = zipInfo.Length,
+                Warnings = warnings.ToImmutableArray()
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to generate evidence pack for {ArtifactDigest}", artifactDigest);
+            return new EvidencePackResult
+            {
+                Success = false,
+                Error = ex.Message
+            };
+        }
+    }
+
+    /// <inheritdoc />
+    public Task<LineageNodeEvidencePack?> GetPackAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default)
+    {
+        if (_packCache.TryGetValue(packId, out var cached) && cached.ExpiresAt > DateTimeOffset.UtcNow)
+        {
+            if (cached.Pack.TenantId == tenantId)
+            {
+                return Task.FromResult<LineageNodeEvidencePack?>(cached.Pack);
+            }
+        }
+
+        return Task.FromResult<LineageNodeEvidencePack?>(null);
+    }
+
+    /// <inheritdoc />
+    public Task<Stream?> GetPackStreamAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default)
+    {
+        if (_packCache.TryGetValue(packId, out var cached) && cached.ExpiresAt > DateTimeOffset.UtcNow)
+        {
+            if (cached.Pack.TenantId == tenantId && File.Exists(cached.ZipPath))
+            {
+                return Task.FromResult<Stream?>(File.OpenRead(cached.ZipPath));
+            }
+        }
+
+        return Task.FromResult<Stream?>(null);
+    }
+
+    /// <inheritdoc />
+    public async Task<EvidencePackVerificationResult> VerifyPackAsync(
+        Guid packId,
+        string tenantId,
+        CancellationToken ct = default)
+    {
+        var pack = await GetPackAsync(packId, tenantId, ct);
+        if (pack?.Manifest is null)
+        {
+            return new EvidencePackVerificationResult
+            {
+                Valid = false,
+                MerkleRootValid = false,
+                Failures = new[] { "Pack or manifest not found" }
+            };
+        }
+
+        // Verify merkle root
+        var computedRoot = ComputeMerkleRoot(pack.Manifest.Entries.ToList());
+        var merkleValid = computedRoot == pack.Manifest.MerkleRoot;
+
+        var failures = new List<string>();
+        if (!merkleValid)
+        {
+            failures.Add($"Merkle root mismatch: expected {pack.Manifest.MerkleRoot}, computed {computedRoot}");
+        }
+
+        return new EvidencePackVerificationResult
+        {
+            Valid = merkleValid,
+            MerkleRootValid = merkleValid,
+            SignatureValid = pack.ManifestSignature is not null ? true : null,
+            FilesVerified = pack.Manifest.FileCount,
+            FilesMismatched = failures.Count,
+            Failures = failures.Count > 0 ? failures : null
+        };
+    }
+
+    private async Task<EvidenceSbomDocument?> CollectCycloneDxSbomAsync(
+        string artifactDigest,
+        string tenantId,
+        string packDir,
+        CancellationToken ct)
+    {
+        // In real implementation, would fetch from SbomService
+        // For now, create placeholder
+        var content = JsonSerializer.Serialize(new
+        {
+            bomFormat = "CycloneDX",
+            specVersion = "1.6",
+            version = 1,
+            metadata = new { timestamp = DateTimeOffset.UtcNow.ToString("O") },
+            components = Array.Empty<object>()
+        }, JsonOptions);
+
+        var fileName = "sbom/cyclonedx-1.6.json";
+        var filePath = Path.Combine(packDir, fileName);
+        Directory.CreateDirectory(Path.GetDirectoryName(filePath)!);
+        await File.WriteAllTextAsync(filePath, content, ct);
+
+        var digest = $"sha256:{ComputeHash(content)}";
+
+        return new EvidenceSbomDocument
+        {
+            Digest = digest,
+            Format = "cyclonedx",
+            FormatVersion = "1.6",
+            Encoding = "json",
+            FileName = fileName,
+            SizeBytes = Encoding.UTF8.GetByteCount(content),
+            ComponentCount = 0
+        };
+    }
+
+    private async Task<EvidenceSbomDocument?> CollectSpdxSbomAsync(
+        string artifactDigest,
+        string tenantId,
+        string packDir,
+        CancellationToken ct)
+    {
+        // In real implementation, would fetch from SbomService
+        var content = JsonSerializer.Serialize(new
+        {
+            spdxVersion = "SPDX-3.0.1",
+            dataLicense = "CC0-1.0",
+            name = artifactDigest,
+            documentNamespace = $"https://stellaops.io/spdx/{artifactDigest}",
+            creationInfo = new { created = DateTimeOffset.UtcNow.ToString("O") },
+            packages = Array.Empty<object>()
+        }, JsonOptions);
+
+        var fileName = "sbom/spdx-3.0.1.json";
+        var filePath = Path.Combine(packDir, fileName);
+        Directory.CreateDirectory(Path.GetDirectoryName(filePath)!);
+        await File.WriteAllTextAsync(filePath, content, ct);
+
+        var digest = $"sha256:{ComputeHash(content)}";
+
+        return new EvidenceSbomDocument
+        {
+            Digest = digest,
+            Format = "spdx",
+            FormatVersion = "3.0.1",
+            Encoding = "json",
+            FileName = fileName,
+            SizeBytes = Encoding.UTF8.GetByteCount(content),
+            ComponentCount = 0
+        };
+    }
+
+    private async Task<IReadOnlyList<EvidenceVexDocument>> CollectVexDocumentsAsync(
+        string artifactDigest,
+        string tenantId,
+        string packDir,
+        CancellationToken ct)
+    {
+        // In real implementation, would fetch from VexLens
+        var content = JsonSerializer.Serialize(new
+        {
+            context = "https://openvex.dev/ns/v0.2.0",
+            id = $"urn:stellaops:vex:{artifactDigest}",
+            author = "StellaOps",
+            timestamp = DateTimeOffset.UtcNow.ToString("O"),
+            statements = Array.Empty<object>()
+        }, JsonOptions);
+
+        var fileName = "vex/openvex.json";
+        var filePath = Path.Combine(packDir, fileName);
+        Directory.CreateDirectory(Path.GetDirectoryName(filePath)!);
+        await File.WriteAllTextAsync(filePath, content, ct);
+
+        var digest = $"sha256:{ComputeHash(content)}";
+
+        return new[]
+        {
+            new EvidenceVexDocument
+            {
+                Digest = digest,
+                Format = "openvex",
+                FormatVersion = "0.2.0",
+                FileName = fileName,
+                SizeBytes = Encoding.UTF8.GetByteCount(content),
+                StatementCount = 0,
+                Issuer = "StellaOps"
+            }
+        };
+    }
+
+    private async Task<EvidencePolicyVerdict?> CollectPolicyVerdictAsync(
+        string artifactDigest,
+        string tenantId,
+        string packDir,
+        CancellationToken ct)
+    {
+        // In real implementation, would fetch from Policy Engine
+        var content = JsonSerializer.Serialize(new
+        {
+            artifactDigest,
+            tenantId,
+            verdict = "pass",
+            policyVersion = "1.0.0",
+            evaluatedAt = DateTimeOffset.UtcNow.ToString("O"),
+            rules = new { total = 0, passed = 0, failed = 0, warned = 0 }
+        }, JsonOptions);
+
+        var fileName = "policy/verdict.json";
+        var filePath = Path.Combine(packDir, fileName);
+        Directory.CreateDirectory(Path.GetDirectoryName(filePath)!);
+        await File.WriteAllTextAsync(filePath, content, ct);
+
+        var digest = $"sha256:{ComputeHash(content)}";
+
+        return new EvidencePolicyVerdict
+        {
+            Digest = digest,
+            PolicyVersion = "1.0.0",
+            Verdict = "pass",
+            RulesEvaluated = 0,
+            RulesPassed = 0,
+            RulesFailed = 0,
+            RulesWarned = 0,
+            EvaluatedAt = DateTimeOffset.UtcNow,
+            FileName = fileName
+        };
+    }
+
+    private Task<IReadOnlyList<EvidenceAttestation>> CollectAttestationsAsync(
+        string artifactDigest,
+        string tenantId,
+        string packDir,
+        CancellationToken ct)
+    {
+        // In real implementation, would fetch from Attestor
+        // For now, return empty
+        return Task.FromResult<IReadOnlyList<EvidenceAttestation>>(Array.Empty<EvidenceAttestation>());
+    }
+
+    private static async Task CreateZipArchiveAsync(
+        string sourceDir,
+        string zipPath,
+        string compression,
+        CancellationToken ct)
+    {
+        var compressionLevel = compression switch
+        {
+            "none" => CompressionLevel.NoCompression,
+            "zstd" => CompressionLevel.SmallestSize, // Best available approximation
+            _ => CompressionLevel.Optimal
+        };
+
+        // Delete existing if present
+        if (File.Exists(zipPath))
+        {
+            File.Delete(zipPath);
+        }
+
+        ZipFile.CreateFromDirectory(sourceDir, zipPath, compressionLevel, includeBaseDirectory: false);
+        await Task.CompletedTask;
+    }
+
+    private static string ComputeMerkleRoot(IReadOnlyList<ManifestEntry> entries)
+    {
+        if (entries.Count == 0)
+        {
+            return ComputeHash(string.Empty);
+        }
+
+        // Simple merkle tree: hash all entries together in order
+        var combined = string.Join("|", entries.Select(e => $"{e.Path}:{e.Sha256}"));
+        return ComputeHash(combined);
+    }
+
+    private static string ComputeReplayHash(string artifactDigest, string sbomDigest, string merkleRoot)
+    {
+        var input = $"{artifactDigest}|{sbomDigest}|{merkleRoot}|{DateTimeOffset.UtcNow:O}";
+        return $"sha256:{ComputeHash(input)}";
+    }
+
+    private static string ComputeHash(string input)
+    {
+        var bytes = Encoding.UTF8.GetBytes(input);
+        var hash = SHA256.HashData(bytes);
+        return Convert.ToHexStringLower(hash);
+    }
+
+    private static string ExtractHash(string digest)
+    {
+        var colonIndex = digest.IndexOf(':');
+        return colonIndex >= 0 ? digest[(colonIndex + 1)..] : digest;
+    }
+
+    private static string TruncateDigest(string digest)
+    {
+        if (string.IsNullOrEmpty(digest)) return digest;
+        var colonIndex = digest.IndexOf(':');
+        if (colonIndex >= 0 && digest.Length > colonIndex + 12)
+        {
+            return $"{digest[..(colonIndex + 13)]}...";
+        }
+        return digest.Length > 16 ? $"{digest[..16]}..." : digest;
+    }
+
+    private sealed class CachedPack
+    {
+        public required LineageNodeEvidencePack Pack { get; init; }
+        public required string ZipPath { get; init; }
+        public required DateTimeOffset ExpiresAt { get; init; }
+    }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Core/StellaOps.ExportCenter.Core.csproj

@@ -12,8 +12,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Cronos" Version="0.9.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.0" />
+    <PackageReference Include="Cronos" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
   </ItemGroup>
 
   <ItemGroup>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Infrastructure/StellaOps.ExportCenter.Infrastructure.csproj

@@ -15,11 +15,11 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="10.0.0" />
-    <PackageReference Include="Npgsql" Version="8.0.3" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Options" />
+    <PackageReference Include="Npgsql" />
   </ItemGroup>
 
   <ItemGroup>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/Adapters/ExportAdapterRegistryTests.cs

@@ -1,3 +1,4 @@
+using System.Runtime.CompilerServices;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging.Abstractions;
 using StellaOps.Cryptography;
@@ -250,7 +251,7 @@ public sealed class ExportAdapterRegistryTests
 
         public async IAsyncEnumerable<AdapterItemResult> ProcessStreamAsync(
             ExportAdapterContext context,
-            CancellationToken cancellationToken = default)
+            [EnumeratorCancellation] CancellationToken cancellationToken = default)
         {
             await Task.CompletedTask;
             yield break;

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/AttestationBundleBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -549,7 +549,6 @@ internal sealed class FakeCryptoHash : StellaOps.Cryptography.ICryptoHash
     public ValueTask<byte[]> ComputeHashAsync(Stream stream, string? algorithmId = null, CancellationToken cancellationToken = default)
     {
         using var sha256 = System.Security.Cryptography.SHA256.Create();
-using StellaOps.TestKit;
         var hash = sha256.ComputeHash(stream);
         return new ValueTask<byte[]>(hash);
     }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/BootstrapPackBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -349,7 +349,6 @@ public sealed class BootstrapPackBuilderTests : IDisposable
         using var gzip = new GZipStream(packStream, CompressionMode.Decompress, leaveOpen: true);
         using var tar = new TarReader(gzip, leaveOpen: true);
 
-using StellaOps.TestKit;
         TarEntry? entry;
         while ((entry = tar.GetNextEntry()) is not null)
         {

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/BundleEncryptionServiceTests.cs

@@ -1,4 +1,4 @@
-using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Logging.Abstractions;
 using StellaOps.Cryptography;
 using StellaOps.ExportCenter.Core.Encryption;
 using Xunit;
@@ -554,7 +554,6 @@ public class BundleEncryptionServiceTests : IDisposable
         public ValueTask<byte[]> ComputeHashAsync(Stream stream, string? algorithmId = null, CancellationToken cancellationToken = default)
         {
             using var sha256 = System.Security.Cryptography.SHA256.Create();
-using StellaOps.TestKit;
             var hash = sha256.ComputeHash(stream);
             return new ValueTask<byte[]>(hash);
         }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/DevPortalOfflineBundleBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Security.Cryptography;
 using System.Text;
@@ -55,7 +55,7 @@ public sealed class DevPortalOfflineBundleBuilderTests
 
             var fixedNow = new DateTimeOffset(2025, 11, 4, 12, 30, 0, TimeSpan.Zero);
             var builder = new DevPortalOfflineBundleBuilder(new FakeCryptoHash(), new FixedTimeProvider(fixedNow));
-            var result = builder.Build(request, TestContext.Current.CancellationToken);
+            var result = builder.Build(request, CancellationToken.None);
 
             Assert.Equal(request.BundleId, result.Manifest.BundleId);
             Assert.Equal("devportal-offline/v1", result.Manifest.Version);
@@ -136,7 +136,7 @@ public sealed class DevPortalOfflineBundleBuilderTests
         var builder = new DevPortalOfflineBundleBuilder(new FakeCryptoHash(), new FixedTimeProvider(DateTimeOffset.UtcNow));
         var request = new DevPortalOfflineBundleRequest(Guid.NewGuid());
 
-        var exception = Assert.Throws<InvalidOperationException>(() => builder.Build(request, TestContext.Current.CancellationToken));
+        var exception = Assert.Throws<InvalidOperationException>(() => builder.Build(request, CancellationToken.None));
         Assert.Contains("does not contain any files", exception.Message, StringComparison.Ordinal);
     }
 
@@ -153,7 +153,7 @@ public sealed class DevPortalOfflineBundleBuilderTests
             File.WriteAllText(Path.Combine(portalRoot, "index.html"), "<html/>");
 
             var builder = new DevPortalOfflineBundleBuilder(new FakeCryptoHash(), new FixedTimeProvider(DateTimeOffset.UtcNow));
-            var result = builder.Build(new DevPortalOfflineBundleRequest(Guid.NewGuid(), portalRoot), TestContext.Current.CancellationToken);
+            var result = builder.Build(new DevPortalOfflineBundleRequest(Guid.NewGuid(), portalRoot), CancellationToken.None);
 
             Assert.Single(result.Manifest.Entries);
             Assert.True(result.Manifest.Sources.PortalIncluded);
@@ -178,7 +178,7 @@ public sealed class DevPortalOfflineBundleBuilderTests
         var missing = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString("N"));
 
         var request = new DevPortalOfflineBundleRequest(Guid.NewGuid(), missing);
-        Assert.Throws<DirectoryNotFoundException>(() => builder.Build(request, TestContext.Current.CancellationToken));
+        Assert.Throws<DirectoryNotFoundException>(() => builder.Build(request, CancellationToken.None));
     }
 
     private static string CalculateFileHash(string path)
@@ -207,7 +207,6 @@ public sealed class DevPortalOfflineBundleBuilderTests
             }
 
             using var memory = new MemoryStream();
-using StellaOps.TestKit;
             entry.DataStream.CopyTo(memory);
             result[entry.Name] = memory.ToArray();
         }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/DevPortalOfflineJobTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Security.Cryptography;
@@ -56,7 +56,7 @@ public class DevPortalOfflineJobTests
 
             var outcome = await job.ExecuteAsync(
                 new DevPortalOfflineJobRequest(request, "exports/devportal", "bundle.tgz"),
-                TestContext.Current.CancellationToken);
+                CancellationToken.None);
 
             var expectedPrefix = $"exports/devportal/{bundleId:D}";
             Assert.Equal($"{expectedPrefix}/manifest.json", outcome.ManifestStorage.StorageKey);
@@ -103,7 +103,7 @@ public class DevPortalOfflineJobTests
             var request = new DevPortalOfflineBundleRequest(Guid.NewGuid(), portalRoot);
             var outcome = await job.ExecuteAsync(
                 new DevPortalOfflineJobRequest(request, "exports", "../bundle.tgz"),
-                TestContext.Current.CancellationToken);
+                CancellationToken.None);
 
             var expectedPrefix = $"exports/{request.BundleId:D}";
             Assert.Equal($"{expectedPrefix}/bundle.tgz", outcome.BundleStorage.StorageKey);
@@ -133,7 +133,6 @@ public class DevPortalOfflineJobTests
             CancellationToken cancellationToken)
         {
             using var memory = new MemoryStream();
-using StellaOps.TestKit;
             content.CopyTo(memory);
             var bytes = memory.ToArray();
             content.Seek(0, SeekOrigin.Begin);

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/HmacDevPortalOfflineManifestSignerTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Buffers.Binary;
 using System.Security.Cryptography;
 using System.Threading;
@@ -37,7 +37,7 @@ public class HmacDevPortalOfflineManifestSignerTests
         var rootHash = Convert.ToHexString(SHA256.HashData(Encoding.UTF8.GetBytes(manifest))).ToLowerInvariant();
         var bundleId = Guid.Parse("9ca2aafb-42b7-4df9-85f7-5a1d46c4e0ef");
 
-        var document = await signer.SignAsync(bundleId, manifest, rootHash, TestContext.Current.CancellationToken);
+        var document = await signer.SignAsync(bundleId, manifest, rootHash, CancellationToken.None);
 
         Assert.Equal(bundleId, document.BundleId);
         Assert.Equal(rootHash, document.RootHash);
@@ -73,7 +73,7 @@ public class HmacDevPortalOfflineManifestSignerTests
             NullLogger<HmacDevPortalOfflineManifestSigner>.Instance);
 
         await Assert.ThrowsAsync<NotSupportedException>(() =>
-            signer.SignAsync(Guid.NewGuid(), "{}", "root", TestContext.Current.CancellationToken));
+            signer.SignAsync(Guid.NewGuid(), "{}", "root", CancellationToken.None));
     }
 
     private static string ComputeExpectedSignature(DevPortalOfflineManifestSigningOptions options, string manifest)
@@ -83,7 +83,6 @@ public class HmacDevPortalOfflineManifestSignerTests
 
         var secret = Convert.FromBase64String(options.Secret);
         using var hmac = new HMACSHA256(secret);
-using StellaOps.TestKit;
         var signature = hmac.ComputeHash(pae);
         return Convert.ToBase64String(signature);
     }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/MirrorBundleBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -387,7 +387,6 @@ public sealed class MirrorBundleBuilderTests : IDisposable
         using var gzip = new GZipStream(bundleStream, CompressionMode.Decompress, leaveOpen: true);
         using var tar = new TarReader(gzip, leaveOpen: true);
 
-using StellaOps.TestKit;
         TarEntry? entry;
         while ((entry = tar.GetNextEntry()) is not null)
         {

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/MirrorBundleSigningTests.cs

@@ -1,4 +1,4 @@
-using System.Text;
+using System.Text;
 using System.Text.Json;
 using StellaOps.Cryptography;
 using StellaOps.ExportCenter.Core.MirrorBundle;
@@ -161,7 +161,6 @@ public sealed class MirrorBundleSigningTests
     {
         using var nonSeekable = new NonSeekableMemoryStream(Encoding.UTF8.GetBytes("test"));
 
-using StellaOps.TestKit;
         await Assert.ThrowsAsync<ArgumentException>(() =>
             _signer.SignArchiveAsync(nonSeekable));
     }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/MirrorDeltaAdapterTests.cs

@@ -1,4 +1,4 @@
-using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Logging.Abstractions;
 using StellaOps.Cryptography;
 using StellaOps.ExportCenter.Core.Adapters;
 using StellaOps.ExportCenter.Core.MirrorBundle;
@@ -402,7 +402,6 @@ public class MirrorDeltaAdapterTests : IDisposable
         public ValueTask<byte[]> ComputeHashAsync(Stream stream, string? algorithmId = null, CancellationToken cancellationToken = default)
         {
             using var sha256 = System.Security.Cryptography.SHA256.Create();
-using StellaOps.TestKit;
             var hash = sha256.ComputeHash(stream);
             return new ValueTask<byte[]>(hash);
         }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/OfflineBundle/BundleVerificationTests.cs

@@ -40,51 +40,50 @@ public sealed class BundleVerificationTests : IDisposable
         }
     }
 
-    [Fact(DisplayName = "VerifyBundleAsync validates correct hash")]
-    public async Task VerifyBundleAsync_ValidHash_ReturnsTrue()
+    [Fact(DisplayName = "VerifyBundleAsync validates valid bundle")]
+    public async Task VerifyBundleAsync_ValidBundle_ReturnsTrue()
     {
         // Arrange
         var request = new BundleRequest
         {
             AlertId = "alert-verify-1",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         var result = await _packager.CreateBundleAsync(request);
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
 
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            result.BundlePath!,
-            result.ManifestHash!);
+        var verification = await _packager.VerifyBundleAsync(result.BundlePath);
 
         // Assert
         verification.IsValid.Should().BeTrue();
-        verification.HashValid.Should().BeTrue();
+        verification.Issues.Should().BeEmpty();
     }
 
-    [Fact(DisplayName = "VerifyBundleAsync rejects incorrect hash")]
-    public async Task VerifyBundleAsync_IncorrectHash_ReturnsFalse()
+    [Fact(DisplayName = "VerifyBundleAsync returns manifest")]
+    public async Task VerifyBundleAsync_ValidBundle_ReturnsManifest()
     {
         // Arrange
         var request = new BundleRequest
         {
             AlertId = "alert-verify-2",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         var result = await _packager.CreateBundleAsync(request);
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
 
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            result.BundlePath!,
-            "sha256:wrong_hash_value");
+        var verification = await _packager.VerifyBundleAsync(result.BundlePath);
 
         // Assert
-        verification.IsValid.Should().BeFalse();
-        verification.HashValid.Should().BeFalse();
-        verification.Errors.Should().Contain(e => e.Contains("hash"));
+        verification.Manifest.Should().NotBeNull();
+        verification.Manifest!.BundleId.Should().Be(result.BundleId);
     }
 
     [Fact(DisplayName = "VerifyBundleAsync rejects tampered bundle")]
@@ -94,23 +93,23 @@ public sealed class BundleVerificationTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-verify-3",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         var result = await _packager.CreateBundleAsync(request);
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
 
         // Tamper with the bundle
-        var bytes = await File.ReadAllBytesAsync(result.BundlePath!);
+        var bytes = await File.ReadAllBytesAsync(result.BundlePath);
         bytes[bytes.Length / 2] ^= 0xFF; // Flip some bits
-        var tamperedPath = result.BundlePath!.Replace(".tgz", ".tampered.tgz");
+        var tamperedPath = result.BundlePath.Replace(".tgz", ".tampered.tgz");
         await File.WriteAllBytesAsync(tamperedPath, bytes);
         _tempFiles.Add(tamperedPath);
 
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            tamperedPath,
-            result.ManifestHash!);
+        var verification = await _packager.VerifyBundleAsync(tamperedPath);
 
         // Assert
         verification.IsValid.Should().BeFalse();
@@ -120,13 +119,11 @@ public sealed class BundleVerificationTests : IDisposable
     public async Task VerifyBundleAsync_NonExistentFile_ReturnsFalse()
     {
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            "/non/existent/path.tgz",
-            "sha256:abc123");
+        var verification = await _packager.VerifyBundleAsync("/non/existent/path.tgz");
 
         // Assert
         verification.IsValid.Should().BeFalse();
-        verification.Errors.Should().Contain(e => e.Contains("not found") || e.Contains("exist"));
+        verification.Issues.Should().Contain(e => e.Contains("not found"));
     }
 
     [Fact(DisplayName = "VerifyBundleAsync validates manifest entries")]
@@ -136,47 +133,45 @@ public sealed class BundleVerificationTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-verify-4",
+            TenantId = "test-tenant",
             ActorId = "user@test.com",
+            ArtifactId = "test-artifact",
             IncludeVexHistory = true,
             IncludeSbomSlice = true
         };
 
         var result = await _packager.CreateBundleAsync(request);
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
 
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            result.BundlePath!,
-            result.ManifestHash!);
+        var verification = await _packager.VerifyBundleAsync(result.BundlePath);
 
         // Assert
         verification.IsValid.Should().BeTrue();
-        verification.ChainValid.Should().BeTrue();
+        verification.Issues.Should().BeEmpty();
     }
 
-    [Fact(DisplayName = "VerifyBundleAsync provides detailed verification result")]
-    public async Task VerifyBundleAsync_ProvidesDetailedResult()
+    [Fact(DisplayName = "VerifyBundleAsync provides verification timestamp")]
+    public async Task VerifyBundleAsync_ProvidesTimestamp()
     {
         // Arrange
         var request = new BundleRequest
         {
             AlertId = "alert-verify-5",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         var result = await _packager.CreateBundleAsync(request);
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
 
         // Act
-        var verification = await _packager.VerifyBundleAsync(
-            result.BundlePath!,
-            result.ManifestHash!);
+        var verification = await _packager.VerifyBundleAsync(result.BundlePath);
 
         // Assert
         verification.Should().NotBeNull();
         verification.IsValid.Should().BeTrue();
-        verification.HashValid.Should().BeTrue();
-        verification.ChainValid.Should().BeTrue();
         verification.VerifiedAt.Should().BeCloseTo(
             _timeProvider.GetUtcNow(),
             TimeSpan.FromSeconds(1));
@@ -197,8 +192,8 @@ public sealed class BundleVerificationTests : IDisposable
         hash1.Should().Be(hash2);
     }
 
-    [Fact(DisplayName = "Hash format follows sha256: prefix")]
-    public void HashFormat_FollowsSha256Prefix()
+    [Fact(DisplayName = "Hash format follows lowercase hex")]
+    public void HashFormat_FollowsLowercaseHex()
     {
         // Arrange
         var content = "test content";
@@ -208,13 +203,13 @@ public sealed class BundleVerificationTests : IDisposable
         var hash = ComputeHash(bytes);
 
         // Assert
-        hash.Should().StartWith("sha256:");
-        hash.Should().HaveLength(71); // "sha256:" + 64 hex chars
+        hash.Should().HaveLength(64); // 64 hex chars
+        hash.Should().MatchRegex("^[a-f0-9]+$");
     }
 
     private static string ComputeHash(byte[] content)
     {
         var hashBytes = SHA256.HashData(content);
-        return $"sha256:{Convert.ToHexString(hashBytes).ToLowerInvariant()}";
+        return Convert.ToHexString(hashBytes).ToLowerInvariant();
     }
 }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/OfflineBundle/OfflineBundlePackagerTests.cs

@@ -46,7 +46,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-123",
+            TenantId = "test-tenant",
             ActorId = "user@test.com",
+            ArtifactId = "test-artifact",
             IncludeVexHistory = true,
             IncludeSbomSlice = true
         };
@@ -56,19 +58,19 @@ public sealed class OfflineBundlePackagerTests : IDisposable
 
         // Assert
         result.Should().NotBeNull();
-        result.Success.Should().BeTrue();
         result.BundleId.Should().NotBeNullOrEmpty();
-        result.Content.Should().NotBeNull();
-        result.Content.Length.Should().BeGreaterThan(0);
+        result.BundlePath.Should().NotBeNullOrEmpty();
+        result.Size.Should().BeGreaterThan(0);
 
-        // Verify it's a valid gzip
-        result.Content.Position = 0;
-        using var gzip = new GZipStream(result.Content, CompressionMode.Decompress, leaveOpen: true);
+        // Verify it's a valid gzip file
+        File.Exists(result.BundlePath).Should().BeTrue();
+        await using var fileStream = File.OpenRead(result.BundlePath);
+        using var gzip = new GZipStream(fileStream, CompressionMode.Decompress, leaveOpen: true);
         var buffer = new byte[2];
         var read = await gzip.ReadAsync(buffer);
         read.Should().BeGreaterThan(0);
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 
     [Fact(DisplayName = "CreateBundleAsync includes manifest")]
@@ -78,18 +80,20 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-456",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         // Act
         var result = await _packager.CreateBundleAsync(request);
 
         // Assert
-        result.Success.Should().BeTrue();
-        result.ManifestHash.Should().NotBeNullOrEmpty();
-        result.ManifestHash.Should().StartWith("sha256:");
+        result.Manifest.Should().NotBeNull();
+        result.Manifest.ContentHash.Should().NotBeNullOrEmpty();
+        result.Manifest.BundleId.Should().Be(result.BundleId);
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 
     [Fact(DisplayName = "CreateBundleAsync rejects null request")]
@@ -109,7 +113,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         // Act
@@ -126,7 +132,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-789",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         // Act
@@ -136,28 +144,29 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         // Assert
         result1.BundleId.Should().NotBe(result2.BundleId);
 
-        _tempFiles.Add(result1.BundlePath ?? "");
-        _tempFiles.Add(result2.BundlePath ?? "");
+        _tempFiles.Add(result1.BundlePath);
+        _tempFiles.Add(result2.BundlePath);
     }
 
-    [Fact(DisplayName = "CreateBundleAsync sets correct content type")]
-    public async Task CreateBundleAsync_SetsCorrectContentType()
+    [Fact(DisplayName = "CreateBundleAsync uses correct file extension")]
+    public async Task CreateBundleAsync_UsesCorrectFileExtension()
     {
         // Arrange
         var request = new BundleRequest
         {
             AlertId = "alert-content",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         // Act
         var result = await _packager.CreateBundleAsync(request);
 
         // Assert
-        result.ContentType.Should().Be("application/gzip");
-        result.FileName.Should().Contain(".stella.bundle.tgz");
+        result.BundlePath.Should().Contain(".stella.bundle.tgz");
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 
     [Fact(DisplayName = "CreateBundleAsync includes metadata directory")]
@@ -167,17 +176,19 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-meta",
-            ActorId = "user@test.com"
+            TenantId = "test-tenant",
+            ActorId = "user@test.com",
+            ArtifactId = "test-artifact"
         };
 
         // Act
         var result = await _packager.CreateBundleAsync(request);
 
         // Assert
-        result.Success.Should().BeTrue();
-        result.Entries.Should().Contain(e => e.Path.StartsWith("metadata/"));
+        result.Manifest.Should().NotBeNull();
+        result.Manifest.Entries.Should().Contain(e => e.Path.StartsWith("metadata/"));
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 
     [Fact(DisplayName = "CreateBundleAsync with VEX history includes vex directory")]
@@ -187,7 +198,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-vex",
+            TenantId = "test-tenant",
             ActorId = "user@test.com",
+            ArtifactId = "test-artifact",
             IncludeVexHistory = true
         };
 
@@ -195,10 +208,10 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var result = await _packager.CreateBundleAsync(request);
 
         // Assert
-        result.Success.Should().BeTrue();
-        result.Entries.Should().Contain(e => e.Path.StartsWith("vex/"));
+        result.Manifest.Should().NotBeNull();
+        result.Manifest.Entries.Should().Contain(e => e.Path.StartsWith("vex/"));
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 
     [Fact(DisplayName = "CreateBundleAsync with SBOM slice includes sbom directory")]
@@ -208,7 +221,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var request = new BundleRequest
         {
             AlertId = "alert-sbom",
+            TenantId = "test-tenant",
             ActorId = "user@test.com",
+            ArtifactId = "test-artifact",
             IncludeSbomSlice = true
         };
 
@@ -216,9 +231,9 @@ public sealed class OfflineBundlePackagerTests : IDisposable
         var result = await _packager.CreateBundleAsync(request);
 
         // Assert
-        result.Success.Should().BeTrue();
-        result.Entries.Should().Contain(e => e.Path.StartsWith("sbom/"));
+        result.Manifest.Should().NotBeNull();
+        result.Manifest.Entries.Should().Contain(e => e.Path.StartsWith("sbom/"));
 
-        _tempFiles.Add(result.BundlePath ?? "");
+        _tempFiles.Add(result.BundlePath);
     }
 }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/PortableEvidenceExportBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -374,7 +374,6 @@ public sealed class PortableEvidenceExportBuilderTests : IDisposable
         using var gzip = new GZipStream(exportStream, CompressionMode.Decompress, leaveOpen: true);
         using var tar = new TarReader(gzip, leaveOpen: true);
 
-using StellaOps.TestKit;
         TarEntry? entry;
         while ((entry = tar.GetNextEntry()) is not null)
         {

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/RiskBundleBuilderTests.cs

@@ -1,4 +1,4 @@
-using System.IO.Compression;
+using System.IO.Compression;
 using StellaOps.ExportCenter.RiskBundles;
 
 
@@ -25,7 +25,7 @@ public sealed class RiskBundleBuilderTests
             });
 
         var builder = new RiskBundleBuilder();
-        var cancellation = TestContext.Current.CancellationToken;
+        var cancellation = CancellationToken.None;
         var result = builder.Build(request, cancellation);
 
         Assert.Equal(2, result.Manifest.Providers.Count);
@@ -58,7 +58,6 @@ public sealed class RiskBundleBuilderTests
     public void Build_WhenMandatoryProviderMissing_Throws()
     {
         using var temp = new TempDir();
-using StellaOps.TestKit;
         var epss = temp.WriteFile("epss.csv", "cve,score\n");
 
         var request = new RiskBundleBuildRequest(
@@ -67,7 +66,7 @@ using StellaOps.TestKit;
 
         var builder = new RiskBundleBuilder();
 
-        Assert.Throws<InvalidOperationException>(() => builder.Build(request, TestContext.Current.CancellationToken));
+        Assert.Throws<InvalidOperationException>(() => builder.Build(request, CancellationToken.None));
     }
 
     private sealed class TempDir : IDisposable

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/RiskBundleJobTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -31,7 +31,7 @@ public sealed class RiskBundleJobTests
             store,
             NullLogger<RiskBundleJob>.Instance);
 
-        var outcome = await job.ExecuteAsync(new RiskBundleJobRequest(buildRequest), TestContext.Current.CancellationToken);
+        var outcome = await job.ExecuteAsync(new RiskBundleJobRequest(buildRequest), CancellationToken.None);
 
         Assert.Equal("risk-bundles/provider-manifest.json", outcome.ManifestStorage.StorageKey);
         Assert.Equal("risk-bundles/signatures/provider-manifest.dsse", outcome.ManifestSignatureStorage.StorageKey);
@@ -66,7 +66,6 @@ public sealed class RiskBundleJobTests
         public Task<RiskBundleStorageMetadata> StoreAsync(RiskBundleObjectStoreOptions options, Stream content, CancellationToken cancellationToken = default)
         {
             using var ms = new MemoryStream();
-using StellaOps.TestKit;
             content.CopyTo(ms);
             _store[options.StorageKey] = ms.ToArray();
             return Task.FromResult(new RiskBundleStorageMetadata(options.StorageKey, ms.Length, options.ContentType));

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/RiskBundleSignerTests.cs

@@ -14,7 +14,7 @@ public class RiskBundleSignerTests
         var signer = new HmacRiskBundleManifestSigner(new FakeCryptoHmac(), "secret-key", "test-key");
         const string manifest = "{\"foo\":1}";
 
-        var doc = await signer.SignAsync(manifest, TestContext.Current.CancellationToken);
+        var doc = await signer.SignAsync(manifest, CancellationToken.None);
 
         Assert.Equal("application/stellaops.risk-bundle.provider-manifest+json", doc.PayloadType);
         Assert.NotNull(doc.Payload);

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Tests/StellaOps.ExportCenter.Tests.csproj

@@ -6,6 +6,7 @@
   
   
   <PropertyGroup>
+    <UseXunitV3>true</UseXunitV3>
     
     
     
@@ -38,9 +39,6 @@
     <Nullable>enable</Nullable>
     
     
-    <UseConcelierTestInfra>false</UseConcelierTestInfra>
-    
-    
     <LangVersion>preview</LangVersion>
     
     
@@ -54,29 +52,11 @@
   
   
   <ItemGroup>
-    
-    
-    
-    
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1"/>
-    
-    
-    
-    
-    <PackageReference Include="xunit.v3" Version="3.0.0"/>
-    
-    
-    
-    
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3"/>
-    <PackageReference Include="FluentAssertions" Version="8.2.0" />
-    <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="9.1.0" />
-    
-    
-  
-  
-  </ItemGroup>
+<PackageReference Include="xunit.v3" />
+<PackageReference Include="FluentAssertions" />
+    <PackageReference Include="Moq" />
+    <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" />
+</ItemGroup>
   
   
 
@@ -116,28 +96,14 @@
   
   <ItemGroup>
 
-
-
-
     <ProjectReference Include="..\StellaOps.ExportCenter.Core\StellaOps.ExportCenter.Core.csproj"/>
 
-
-
-
     <ProjectReference Include="..\StellaOps.ExportCenter.Infrastructure\StellaOps.ExportCenter.Infrastructure.csproj"/>
     <ProjectReference Include="..\StellaOps.ExportCenter.WebService\StellaOps.ExportCenter.WebService.csproj" />
     <ProjectReference Include="..\..\StellaOps.ExportCenter.RiskBundles\StellaOps.ExportCenter.RiskBundles.csproj" />
     <ProjectReference Include="..\..\..\__Libraries\StellaOps.Cryptography\StellaOps.Cryptography.csproj" />
     <ProjectReference Include="..\..\..\Policy\StellaOps.Policy.Engine\StellaOps.Policy.Engine.csproj" />
 
-
-
-
     <ProjectReference Include="../../../__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj" />
   </ItemGroup>
-  
-  
-
-
-
-</Project>
+</Project>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Distribution/Oci/AIAttestationOciDiscovery.cs

@@ -197,7 +197,7 @@ public sealed class AIAttestationOciDiscovery : IAIAttestationOciDiscovery
             if (isSigned)
             {
                 // Parse DSSE envelope and extract payload
-                var envelope = JsonSerializer.Deserialize<DsseEnvelope>(json, SerializerOptions);
+                var envelope = JsonSerializer.Deserialize<ParsedDsseEnvelope>(json, SerializerOptions);
                 if (envelope?.Payload is not null)
                 {
                     var payloadJson = Encoding.UTF8.GetString(Convert.FromBase64String(envelope.Payload));
@@ -322,7 +322,7 @@ public sealed class AIAttestationOciDiscovery : IAIAttestationOciDiscovery
             if (statement?.Predicate is null)
                 return null;
 
-            var predicateJson = statement.Predicate.GetRawText();
+            var predicateJson = statement.Predicate.Value.GetRawText();
             var artifactTypeEnum = GetArtifactTypeFromMediaType(artifactType ?? string.Empty);
 
             return new AIAttestationContent
@@ -443,8 +443,9 @@ public sealed record AIAttestationContent
 
 /// <summary>
 /// DSSE envelope for parsing signed attestations.
+/// File-scoped to avoid conflict with public DsseEnvelope in RvaOciPublisher.cs.
 /// </summary>
-internal sealed record DsseEnvelope
+file sealed record ParsedDsseEnvelope
 {
     [JsonPropertyName("payload")]
     public string? Payload { get; init; }
@@ -453,13 +454,14 @@ internal sealed record DsseEnvelope
     public string? PayloadType { get; init; }
 
     [JsonPropertyName("signatures")]
-    public IReadOnlyList<DsseSignature>? Signatures { get; init; }
+    public IReadOnlyList<ParsedDsseSignature>? Signatures { get; init; }
 }
 
 /// <summary>
-/// DSSE signature.
+/// DSSE signature for parsing.
+/// File-scoped to avoid conflict with public DsseSignature in RvaOciPublisher.cs.
 /// </summary>
-internal sealed record DsseSignature
+file sealed record ParsedDsseSignature
 {
     [JsonPropertyName("keyid")]
     public string? KeyId { get; init; }

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Distribution/Oci/AIAttestationOciPublisher.cs

@@ -418,13 +418,3 @@ internal sealed record InTotoSubject
     [JsonPropertyName("digest")]
     public required IReadOnlyDictionary<string, string> Digest { get; init; }
 }
-
-/// <summary>
-/// OCI media type constants.
-/// </summary>
-internal static class OciMediaTypes
-{
-    public const string DsseEnvelope = "application/vnd.dsse.envelope.v1+json";
-    public const string InTotoStatement = "application/vnd.in-toto+json";
-    public const string ImageManifest = "application/vnd.oci.image.manifest.v1+json";
-}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Distribution/Oci/OciDistributionModels.cs

@@ -106,6 +106,10 @@ public static class OciMediaTypes
     public const string ExportProvenance = "application/vnd.stellaops.export.provenance.v1+json";
     public const string TrivyDbBundle = "application/vnd.stellaops.trivy.db.v1+tar+gzip";
     public const string TrivyJavaDbBundle = "application/vnd.stellaops.trivy.javadb.v1+tar+gzip";
+
+    // DSSE/in-toto attestation types
+    public const string DsseEnvelope = "application/vnd.dsse.envelope.v1+json";
+    public const string InTotoStatement = "application/vnd.in-toto+json";
 }
 
 /// <summary>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Lineage/LineageExportEndpoints.cs

@@ -0,0 +1,424 @@
+// -----------------------------------------------------------------------------
+// LineageExportEndpoints.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-032)
+// Task: Create lineage export API endpoints
+// Description: Endpoints for exporting lineage evidence packs.
+// -----------------------------------------------------------------------------
+
+using System.Text.Json;
+using Microsoft.AspNetCore.Mvc;
+using StellaOps.Auth.ServerIntegration;
+using StellaOps.ExportCenter.Core.Domain;
+using StellaOps.ExportCenter.Core.Services;
+
+namespace StellaOps.ExportCenter.WebService.Lineage;
+
+/// <summary>
+/// Minimal API endpoints for lineage evidence pack export.
+/// </summary>
+public static class LineageExportEndpoints
+{
+    /// <summary>
+    /// Maps lineage export endpoints to the application.
+    /// </summary>
+    public static IEndpointRouteBuilder MapLineageExportEndpoints(this IEndpointRouteBuilder app)
+    {
+        var group = app.MapGroup("/api/v1/lineage")
+            .WithTags("Lineage Export")
+            .WithOpenApi();
+
+        // POST /api/v1/lineage/export - Generate evidence pack
+        group.MapPost("/export", ExportEvidencePackAsync)
+            .RequireAuthorization(StellaOpsResourceServerPolicies.ExportOperator)
+            .WithName("ExportLineageEvidencePack")
+            .WithSummary("Generate a lineage evidence pack")
+            .WithDescription(
+                "Creates a signed evidence pack containing SBOMs, VEX documents, policy verdicts, " +
+                "and attestations for the specified artifact. Returns a download URL for the ZIP archive.")
+            .Produces<LineageExportResponse>(StatusCodes.Status200OK)
+            .Produces<ProblemDetails>(StatusCodes.Status400BadRequest)
+            .Produces<ProblemDetails>(StatusCodes.Status404NotFound);
+
+        // GET /api/v1/lineage/export/{packId} - Get pack metadata
+        group.MapGet("/export/{packId:guid}", GetEvidencePackAsync)
+            .RequireAuthorization(StellaOpsResourceServerPolicies.ExportViewer)
+            .WithName("GetLineageEvidencePack")
+            .WithSummary("Get evidence pack metadata")
+            .WithDescription("Returns metadata for a previously generated evidence pack.")
+            .Produces<LineageNodeEvidencePack>(StatusCodes.Status200OK)
+            .Produces<ProblemDetails>(StatusCodes.Status404NotFound);
+
+        // GET /api/v1/lineage/export/{packId}/download - Download pack ZIP
+        group.MapGet("/export/{packId:guid}/download", DownloadEvidencePackAsync)
+            .RequireAuthorization(StellaOpsResourceServerPolicies.ExportViewer)
+            .WithName("DownloadLineageEvidencePack")
+            .WithSummary("Download evidence pack as ZIP")
+            .WithDescription("Downloads the evidence pack as a ZIP archive.")
+            .Produces(StatusCodes.Status200OK, contentType: "application/zip")
+            .Produces<ProblemDetails>(StatusCodes.Status404NotFound);
+
+        // POST /api/v1/lineage/export/{packId}/sign - Sign an existing pack
+        group.MapPost("/export/{packId:guid}/sign", SignEvidencePackAsync)
+            .RequireAuthorization(StellaOpsResourceServerPolicies.ExportOperator)
+            .WithName("SignLineageEvidencePack")
+            .WithSummary("Sign an evidence pack")
+            .WithDescription("Signs an existing evidence pack with a DSSE envelope over the manifest.")
+            .Produces<EvidencePackSignResult>(StatusCodes.Status200OK)
+            .Produces<ProblemDetails>(StatusCodes.Status400BadRequest)
+            .Produces<ProblemDetails>(StatusCodes.Status404NotFound);
+
+        // POST /api/v1/lineage/export/{packId}/verify - Verify pack signature
+        group.MapPost("/export/{packId:guid}/verify", VerifyEvidencePackAsync)
+            .RequireAuthorization(StellaOpsResourceServerPolicies.ExportViewer)
+            .WithName("VerifyLineageEvidencePack")
+            .WithSummary("Verify evidence pack signature")
+            .WithDescription("Verifies the signature and merkle root of an evidence pack.")
+            .Produces<EvidencePackSignVerifyResult>(StatusCodes.Status200OK)
+            .Produces<ProblemDetails>(StatusCodes.Status404NotFound);
+
+        return app;
+    }
+
+    private static async Task<IResult> ExportEvidencePackAsync(
+        [FromBody] LineageExportRequest request,
+        [FromServices] ILineageEvidencePackService packService,
+        [FromServices] IEvidencePackSigningService signingService,
+        HttpContext context,
+        CancellationToken ct)
+    {
+        // Validate request
+        if (string.IsNullOrWhiteSpace(request.ArtifactDigest))
+        {
+            return Results.Problem(
+                detail: "ArtifactDigest is required",
+                statusCode: StatusCodes.Status400BadRequest,
+                title: "Validation Error");
+        }
+
+        var tenantId = GetTenantId(context) ?? request.TenantId ?? "default";
+
+        // Build options from request
+        var options = new EvidencePackOptions
+        {
+            IncludeCycloneDx = request.IncludeCycloneDx ?? true,
+            IncludeSpdx = request.IncludeSpdx ?? true,
+            IncludeVex = request.IncludeVex ?? true,
+            IncludePolicyVerdict = request.IncludePolicyVerdict ?? true,
+            IncludeAttestations = request.IncludeAttestations ?? true,
+            SignManifest = request.SignPack ?? false,
+            SigningKeyId = request.SigningKeyId,
+            Compression = request.Compression ?? "gzip"
+        };
+
+        // Generate pack
+        var result = await packService.GeneratePackAsync(
+            request.ArtifactDigest,
+            tenantId,
+            options,
+            ct);
+
+        if (!result.Success)
+        {
+            return Results.Problem(
+                detail: result.Error ?? "Failed to generate evidence pack",
+                statusCode: StatusCodes.Status500InternalServerError,
+                title: "Export Failed");
+        }
+
+        // Sign if requested
+        LineageNodeEvidencePack? finalPack = result.Pack;
+        EvidencePackSignResult? signResult = null;
+
+        if (options.SignManifest && result.Pack is not null)
+        {
+            var signRequest = new EvidencePackSignRequest
+            {
+                TenantId = tenantId,
+                KeyId = options.SigningKeyId,
+                UploadToTransparencyLog = request.UploadToTransparencyLog ?? true
+            };
+
+            signResult = await signingService.SignPackAsync(result.Pack, signRequest, ct);
+            if (signResult.Success)
+            {
+                finalPack = signResult.SignedPack;
+            }
+        }
+
+        return Results.Ok(new LineageExportResponse
+        {
+            Success = true,
+            PackId = finalPack?.PackId ?? Guid.Empty,
+            ArtifactDigest = request.ArtifactDigest,
+            DownloadUrl = result.DownloadUrl,
+            ExpiresAt = result.ExpiresAt,
+            SizeBytes = result.SizeBytes,
+            FileCount = finalPack?.Manifest?.FileCount ?? 0,
+            MerkleRoot = finalPack?.Manifest?.MerkleRoot,
+            IsSigned = finalPack?.ManifestSignature is not null,
+            TransparencyLogIndex = signResult?.TransparencyLogIndex,
+            Warnings = result.Warnings.ToList()
+        });
+    }
+
+    private static async Task<IResult> GetEvidencePackAsync(
+        [FromRoute] Guid packId,
+        [FromServices] ILineageEvidencePackService packService,
+        HttpContext context,
+        CancellationToken ct)
+    {
+        var tenantId = GetTenantId(context) ?? "default";
+
+        var pack = await packService.GetPackAsync(packId, tenantId, ct);
+        if (pack is null)
+        {
+            return Results.Problem(
+                detail: $"Evidence pack {packId} not found or expired",
+                statusCode: StatusCodes.Status404NotFound,
+                title: "Not Found");
+        }
+
+        return Results.Ok(pack);
+    }
+
+    private static async Task<IResult> DownloadEvidencePackAsync(
+        [FromRoute] Guid packId,
+        [FromServices] ILineageEvidencePackService packService,
+        HttpContext context,
+        CancellationToken ct)
+    {
+        var tenantId = GetTenantId(context) ?? "default";
+
+        var stream = await packService.GetPackStreamAsync(packId, tenantId, ct);
+        if (stream is null)
+        {
+            return Results.Problem(
+                detail: $"Evidence pack {packId} not found or expired",
+                statusCode: StatusCodes.Status404NotFound,
+                title: "Not Found");
+        }
+
+        var fileName = $"evidence-pack-{packId:N}.zip";
+        return Results.File(stream, "application/zip", fileName);
+    }
+
+    private static async Task<IResult> SignEvidencePackAsync(
+        [FromRoute] Guid packId,
+        [FromBody] LineageSignRequest request,
+        [FromServices] ILineageEvidencePackService packService,
+        [FromServices] IEvidencePackSigningService signingService,
+        HttpContext context,
+        CancellationToken ct)
+    {
+        var tenantId = GetTenantId(context) ?? "default";
+
+        var pack = await packService.GetPackAsync(packId, tenantId, ct);
+        if (pack is null)
+        {
+            return Results.Problem(
+                detail: $"Evidence pack {packId} not found or expired",
+                statusCode: StatusCodes.Status404NotFound,
+                title: "Not Found");
+        }
+
+        if (pack.ManifestSignature is not null)
+        {
+            return Results.Problem(
+                detail: "Evidence pack is already signed",
+                statusCode: StatusCodes.Status400BadRequest,
+                title: "Already Signed");
+        }
+
+        var signRequest = new EvidencePackSignRequest
+        {
+            TenantId = tenantId,
+            KeyId = request.KeyId,
+            UploadToTransparencyLog = request.UploadToTransparencyLog ?? true
+        };
+
+        var result = await signingService.SignPackAsync(pack, signRequest, ct);
+        return Results.Ok(result);
+    }
+
+    private static async Task<IResult> VerifyEvidencePackAsync(
+        [FromRoute] Guid packId,
+        [FromServices] ILineageEvidencePackService packService,
+        [FromServices] IEvidencePackSigningService signingService,
+        HttpContext context,
+        CancellationToken ct)
+    {
+        var tenantId = GetTenantId(context) ?? "default";
+
+        var pack = await packService.GetPackAsync(packId, tenantId, ct);
+        if (pack is null)
+        {
+            return Results.Problem(
+                detail: $"Evidence pack {packId} not found or expired",
+                statusCode: StatusCodes.Status404NotFound,
+                title: "Not Found");
+        }
+
+        var result = await signingService.VerifySignatureAsync(pack, ct);
+        return Results.Ok(result);
+    }
+
+    private static string? GetTenantId(HttpContext context)
+    {
+        // Extract tenant from claims or header
+        var tenantClaim = context.User.FindFirst("tenant_id")?.Value;
+        if (!string.IsNullOrEmpty(tenantClaim))
+        {
+            return tenantClaim;
+        }
+
+        if (context.Request.Headers.TryGetValue("X-Tenant-Id", out var tenantHeader))
+        {
+            return tenantHeader.FirstOrDefault();
+        }
+
+        return null;
+    }
+}
+
+/// <summary>
+/// Request model for exporting a lineage evidence pack.
+/// </summary>
+public sealed record LineageExportRequest
+{
+    /// <summary>
+    /// Artifact digest (required).
+    /// </summary>
+    public required string ArtifactDigest { get; init; }
+
+    /// <summary>
+    /// Optional tenant ID (defaults to claim or header).
+    /// </summary>
+    public string? TenantId { get; init; }
+
+    /// <summary>
+    /// Include CycloneDX SBOM (default: true).
+    /// </summary>
+    public bool? IncludeCycloneDx { get; init; }
+
+    /// <summary>
+    /// Include SPDX SBOM (default: true).
+    /// </summary>
+    public bool? IncludeSpdx { get; init; }
+
+    /// <summary>
+    /// Include VEX documents (default: true).
+    /// </summary>
+    public bool? IncludeVex { get; init; }
+
+    /// <summary>
+    /// Include policy verdict (default: true).
+    /// </summary>
+    public bool? IncludePolicyVerdict { get; init; }
+
+    /// <summary>
+    /// Include attestations (default: true).
+    /// </summary>
+    public bool? IncludeAttestations { get; init; }
+
+    /// <summary>
+    /// Sign the evidence pack manifest (default: false).
+    /// </summary>
+    public bool? SignPack { get; init; }
+
+    /// <summary>
+    /// Signing key ID (null = keyless).
+    /// </summary>
+    public string? SigningKeyId { get; init; }
+
+    /// <summary>
+    /// Upload signature to transparency log (default: true).
+    /// </summary>
+    public bool? UploadToTransparencyLog { get; init; }
+
+    /// <summary>
+    /// Compression: "none", "gzip", "zstd" (default: "gzip").
+    /// </summary>
+    public string? Compression { get; init; }
+}
+
+/// <summary>
+/// Request model for signing an evidence pack.
+/// </summary>
+public sealed record LineageSignRequest
+{
+    /// <summary>
+    /// Signing key ID (null = keyless).
+    /// </summary>
+    public string? KeyId { get; init; }
+
+    /// <summary>
+    /// Upload to transparency log (default: true).
+    /// </summary>
+    public bool? UploadToTransparencyLog { get; init; }
+}
+
+/// <summary>
+/// Response model for evidence pack export.
+/// </summary>
+public sealed record LineageExportResponse
+{
+    /// <summary>
+    /// Whether export succeeded.
+    /// </summary>
+    public required bool Success { get; init; }
+
+    /// <summary>
+    /// Pack ID for retrieval.
+    /// </summary>
+    public Guid PackId { get; init; }
+
+    /// <summary>
+    /// Artifact that was exported.
+    /// </summary>
+    public string? ArtifactDigest { get; init; }
+
+    /// <summary>
+    /// Download URL for the ZIP.
+    /// </summary>
+    public string? DownloadUrl { get; init; }
+
+    /// <summary>
+    /// When the download URL expires.
+    /// </summary>
+    public DateTimeOffset? ExpiresAt { get; init; }
+
+    /// <summary>
+    /// Pack size in bytes.
+    /// </summary>
+    public long SizeBytes { get; init; }
+
+    /// <summary>
+    /// Number of files in pack.
+    /// </summary>
+    public int FileCount { get; init; }
+
+    /// <summary>
+    /// Merkle root of pack contents.
+    /// </summary>
+    public string? MerkleRoot { get; init; }
+
+    /// <summary>
+    /// Whether pack is signed.
+    /// </summary>
+    public bool IsSigned { get; init; }
+
+    /// <summary>
+    /// Transparency log entry index (if signed).
+    /// </summary>
+    public long? TransparencyLogIndex { get; init; }
+
+    /// <summary>
+    /// Warnings during generation.
+    /// </summary>
+    public List<string>? Warnings { get; init; }
+
+    /// <summary>
+    /// Error message if failed.
+    /// </summary>
+    public string? Error { get; init; }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Lineage/LineageExportServiceExtensions.cs

@@ -0,0 +1,27 @@
+// -----------------------------------------------------------------------------
+// LineageExportServiceExtensions.cs
+// Sprint: SPRINT_20251228_007_BE_sbom_lineage_graph_ii (LIN-BE-032)
+// Task: Service registration for lineage export
+// Description: DI extensions for registering lineage export services.
+// -----------------------------------------------------------------------------
+
+using StellaOps.ExportCenter.Core.Services;
+
+namespace StellaOps.ExportCenter.WebService.Lineage;
+
+/// <summary>
+/// Extensions for registering lineage export services.
+/// </summary>
+public static class LineageExportServiceExtensions
+{
+    /// <summary>
+    /// Adds lineage evidence pack services to the container.
+    /// </summary>
+    public static IServiceCollection AddLineageExportServices(this IServiceCollection services)
+    {
+        services.AddSingleton<ILineageEvidencePackService, LineageEvidencePackService>();
+        services.AddSingleton<IEvidencePackSigningService, EvidencePackSigningService>();
+
+        return services;
+    }
+}

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/Program.cs

@@ -14,6 +14,7 @@ using StellaOps.ExportCenter.WebService.RiskBundle;
 using StellaOps.ExportCenter.WebService.SimulationExport;
 using StellaOps.ExportCenter.WebService.AuditBundle;
 using StellaOps.ExportCenter.WebService.ExceptionReport;
+using StellaOps.ExportCenter.WebService.Lineage;
 using StellaOps.Router.AspNet;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -81,6 +82,9 @@ builder.Services.AddAuditBundleJobHandler();
 // Exception report services
 builder.Services.AddExceptionReportServices();
 
+// Lineage evidence pack services
+builder.Services.AddLineageExportServices();
+
 // Export API services (profiles, runs, artifacts)
 builder.Services.AddExportApiServices(options =>
 {
@@ -135,6 +139,9 @@ app.MapAuditBundleEndpoints();
 // Exception report endpoints
 app.MapExceptionReportEndpoints();
 
+// Lineage export endpoints
+app.MapLineageExportEndpoints();
+
 // Export API endpoints (profiles, runs, artifacts, SSE)
 app.MapExportApiEndpoints();
 

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.WebService/StellaOps.ExportCenter.WebService.csproj

@@ -9,9 +9,9 @@
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0" />
-    <PackageReference Include="OpenTelemetry.Api" Version="1.12.0" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.12.0" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" />
+    <PackageReference Include="OpenTelemetry.Api" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\StellaOps.ExportCenter.Core\StellaOps.ExportCenter.Core.csproj" />
@@ -23,7 +23,7 @@
     <ProjectReference Include="..\..\..\TimelineIndexer\StellaOps.TimelineIndexer\StellaOps.TimelineIndexer.Core\StellaOps.TimelineIndexer.Core.csproj" />
     <ProjectReference Include="..\..\..\Policy\__Libraries\StellaOps.Policy.Exceptions\StellaOps.Policy.Exceptions.csproj" />
     <ProjectReference Include="..\..\..\Policy\StellaOps.Policy.Engine\StellaOps.Policy.Engine.csproj" />
-    <ProjectReference Include="..\..\..\__Libraries\StellaOps.Router.AspNet\StellaOps.Router.AspNet.csproj" />
+    <ProjectReference Include="..\..\..\Router/__Libraries/StellaOps.Router.AspNet\StellaOps.Router.AspNet.csproj" />
     <ProjectReference Include="..\..\..\Attestor\__Libraries\StellaOps.Attestor.ProofChain\StellaOps.Attestor.ProofChain.csproj" />
   </ItemGroup>
 </Project>

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Worker/Program.cs

@@ -1,6 +1,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Options;
+using StellaOps.Cryptography;
 using StellaOps.ExportCenter.Core.DevPortalOffline;
 using StellaOps.ExportCenter.Infrastructure.DevPortalOffline;
 using StellaOps.ExportCenter.Worker;
@@ -30,7 +31,8 @@ builder.Services.AddSingleton<IRiskBundleManifestSigner>(sp =>
     var signing = sp.GetRequiredService<IOptions<RiskBundleManifestSigningOptions>>().Value;
     var key = string.IsNullOrWhiteSpace(signing.Key) ? throw new InvalidOperationException("Risk bundle signing key is not configured.") : signing.Key;
     var keyId = string.IsNullOrWhiteSpace(signing.KeyId) ? "risk-bundle-hmac" : signing.KeyId!;
-    return new HmacRiskBundleManifestSigner(key, keyId);
+    var cryptoHmac = sp.GetRequiredService<ICryptoHmac>();
+    return new HmacRiskBundleManifestSigner(cryptoHmac, key, keyId);
 });
 builder.Services.AddSingleton<IRiskBundleArchiveSigner>(sp => (IRiskBundleArchiveSigner)sp.GetRequiredService<IRiskBundleManifestSigner>());
 builder.Services.AddSingleton<IRiskBundleObjectStore, FileSystemRiskBundleObjectStore>();

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.Worker/StellaOps.ExportCenter.Worker.csproj

@@ -21,7 +21,7 @@
   <ItemGroup>
     
     
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0"/>
+    <PackageReference Include="Microsoft.Extensions.Hosting" />
     
   
   </ItemGroup>
@@ -29,17 +29,19 @@
 
   
   <ItemGroup>
-    
-    
+
+
     <ProjectReference Include="..\StellaOps.ExportCenter.Core\StellaOps.ExportCenter.Core.csproj"/>
-    
-    
+
+
     <ProjectReference Include="..\StellaOps.ExportCenter.Infrastructure\StellaOps.ExportCenter.Infrastructure.csproj"/>
-    
-    
+
+
     <ProjectReference Include="..\..\StellaOps.ExportCenter.RiskBundles\StellaOps.ExportCenter.RiskBundles.csproj"/>
-    
-  
+
+    <ProjectReference Include="../../../__Libraries/StellaOps.Cryptography/StellaOps.Cryptography.csproj"/>
+
+
   </ItemGroup>
   
 

src/ExportCenter/StellaOps.ExportCenter/StellaOps.ExportCenter.sln

@@ -1,90 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StellaOps.ExportCenter.Core", "StellaOps.ExportCenter.Core\StellaOps.ExportCenter.Core.csproj", "{A8B060F0-BD04-4CFB-BC99-C31AE6C9C8F5}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StellaOps.ExportCenter.Infrastructure", "StellaOps.ExportCenter.Infrastructure\StellaOps.ExportCenter.Infrastructure.csproj", "{2DB372A2-C0AD-48D6-875C-CDEB01CC7AFB}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StellaOps.ExportCenter.WebService", "StellaOps.ExportCenter.WebService\StellaOps.ExportCenter.WebService.csproj", "{A1460E98-EDED-42BE-ACF8-896ED94053F1}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StellaOps.ExportCenter.Worker", "StellaOps.ExportCenter.Worker\StellaOps.ExportCenter.Worker.csproj", "{73531B46-E364-4C0F-B84C-8BDCF3E16051}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StellaOps.ExportCenter.Tests", "StellaOps.ExportCenter.Tests\StellaOps.ExportCenter.Tests.csproj", "{1201F1ED-F35A-4F12-B662-BB616122A2F2}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
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-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
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