- Introduced AuthorityAdvisoryAiOptions and related classes for managing advisory AI configurations, including remote inference options and tenant-specific settings. - Added AuthorityApiLifecycleOptions to control API lifecycle settings, including legacy OAuth endpoint configurations. - Implemented validation and normalization methods for both advisory AI and API lifecycle options to ensure proper configuration. - Created AuthorityNotificationsOptions and its related classes for managing notification settings, including ack tokens, webhooks, and escalation options. - Developed IssuerDirectoryClient and related models for interacting with the issuer directory service, including caching mechanisms and HTTP client configurations. - Added support for dependency injection through ServiceCollectionExtensions for the Issuer Directory Client. - Updated project file to include necessary package references for the new Issuer Directory Client library.
		
			
				
	
	
	
		
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Attestor Payload Reference
StellaOps evidence predicates must remain reproducible, explainable, and portable across online and fully air-gapped deployments. This guide lists each predicate type, indicates where the canonical JSON Schema lives, highlights the producing service, and links to the matching golden samples.
Quick Reference
| Type ID | Predicate URI | Schema file | Produced by | Primary consumers | 
|---|---|---|---|---|
| StellaOps.BuildProvenance@1 | https://schemas.stella-ops.org/attestations/build-provenance@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-build-provenance.v1.schema.json | Build pipelines, Scanner SBOM bake stage | Attestor, Export Center, Policy Engine | 
| StellaOps.SBOMAttestation@1 | https://schemas.stella-ops.org/attestations/sbom-attestation@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-sbom-attestation.v1.schema.json | Scanner.Worker SBOM composer | Policy Engine, CLI, Export Center | 
| StellaOps.ScanResults@1 | https://schemas.stella-ops.org/attestations/scan-results@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-scan-results.v1.schema.json | Scanner.Worker analyzers | Policy Engine, CLI, Orchestrator | 
| StellaOps.PolicyEvaluation@1 | https://schemas.stella-ops.org/attestations/policy-evaluation@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-policy-evaluation.v1.schema.json | Policy Engine explain pipeline | CLI, Notify, Export Center | 
| StellaOps.VEXAttestation@1 | https://schemas.stella-ops.org/attestations/vex-attestation@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-vex-attestation.v1.schema.json | Excititor consensus service | Policy Engine, CLI, Console | 
| StellaOps.RiskProfileEvidence@1 | https://schemas.stella-ops.org/attestations/risk-profile@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-risk-profile.v1.schema.json | Policy Engine risk pipeline | Console, Notify, Export Center | 
| StellaOps.CustomEvidence@1 | https://schemas.stella-ops.org/attestations/custom-evidence@1 | src/Attestor/StellaOps.Attestor.Types/schemas/stellaops-custom-evidence.v1.schema.json | CLI custom evidence workflows and partner integrations | Policy Engine (policy hooks), Export Center | 
Golden JSON fixtures that double as contract tests live under src/Attestor/StellaOps.Attestor.Types/fixtures/v1/<predicate>.sample.json. TypeScript and Go clients consume the generated sources in src/Attestor/StellaOps.Attestor.Types/generated/ts and src/Attestor/StellaOps.Attestor.Types/generated/go.
Envelope Conventions
- DSSE envelopes are signed over canonical JSON (sorted keys, UTF-8, no insignificant whitespace).
 - The 
subjectarray must include at least one SHA-256 digest and may attach annotations such asoci.referenceorstellaops.asset. predicateTypeuses the URI shown in the table;predicate.typeIdmirrors the short identifier.predicate.schemaVersionfollows semantic versioning. Consumers reject mismatched major versions.- Optional 
metadataandmaterialssections follow the in-toto Statement format to maximise provenance portability. 
Predicate Highlights
- StellaOps.BuildProvenance@1 records builder identity, config source, materials, reproducibility flags, and the resulting artifact digests. Outputs must match the DSSE subject.
 - StellaOps.SBOMAttestation@1 links an artifact digest to a CycloneDX 1.6 or SBOM 3.0.0 document, tracking inventory counts and the generator metadata. Component graph hashes reference CAS entries emitted by Scanner.Worker.
 - StellaOps.ScanResults@1 captures deterministic findings from OS, language, and native analyzers. It reports summary counts, per-finding metadata (PURL, severity, exploitability), and the layer digests inspected.
 - StellaOps.PolicyEvaluation@1 documents lattice-based policy outcomes, including decision traces and evidence digests consumed during evaluation.
 - StellaOps.VEXAttestation@1 mirrors OpenVEX-aligned statements with justification, scope narrowing (package coordinates or component IDs), and issue timestamps.
 - StellaOps.RiskProfileEvidence@1 summarises exploitability, ticketing load, runtime coverage, and maturity for downstream dashboards.
 - StellaOps.CustomEvidence@1 allows regulated tenants to attach organisation-specific payloads referenced by a CAS-hosted schema while preserving provenance and retention controls.
 
Validation and Tooling
- Run 
npm installonce, thennpm run docs:attestor:validateto validate JSON fixtures against their schemas, execute the generated TypeScript tests (npm test), and rungo test ./...for the Go SDK. The command fails fast when any schema, fixture, or generated SDK drifts. - Regenerate schemas and SDKs after edits with 
dotnet run --project src/Attestor/StellaOps.Attestor.Types/Tools/StellaOps.Attestor.Types.Generator. - Offline Kit builds (
ops/devops/offline-kit/) mirror schemas, fixtures, and SDK bundles so air-gapped operators can run the same validation stack. 
Related Material
docs/modules/attestor/architecture.md— service topology, Rekor integration, caching model.docs/modules/platform/architecture-overview.md— cross-module data flows and tenant boundaries.docs/ingestion/aggregation-only-contract.md— guardrails for advisory feeds consumed by policy evaluation.src/Attestor/StellaOps.Attestor.Types/samples/README.md— directory map for the golden evidence set referenced here.