git.stella-ops.org/docs/modules/airgap/guides/time-anchor-schema.md

Time Anchor JSON schema (prep for AIRGAP-TIME-57-001)

Artifact: docs/modules/airgap/schemas/time-anchor-schema.json

Highlights:

• Required: anchorTime (RFC3339), source (roughtime|rfc3161), format string, tokenDigest (sha256 hex of token bytes).
• Optional: signatureFingerprint (hex), verification.status (unknown|passed|failed) + reason.
• No additional properties to keep payload deterministic.

Intended use:

• AirGap Time Guild can embed this in sealed-mode configs and validation endpoints.
• Mirror/OCI timelines can cite the digest + source without needing full token parsing.

Notes:

• Trust roots and final signature fingerprint rules stay TBD; placeholders remain optional to avoid blocking until roots are issued.