SovereignAuditRecord (SAR) Verifier

The ABS Core engine produces cryptographic proof of every AI agent decision in the form of a JSON SovereignAuditRecord.

You can use the offline verifier below to independently validate the Ed25519 signature, the SHA-256 hash continuity, and the RFC 3161 timestamp (if present) for any SAR file.

Technical Details

The verification portal validates the following components of the SAR v4.1.0 schema:

1. Schema Check: Validates that version, payload, and signatures objects exist.
2. Ed25519 Signature: Parses the public key and signature buffer from signatures.ed25519 to authenticate the agent.
3. Hash continuity: Checks the integrity of previous_block_hash inside payload.context against the ledger.
4. Goverance Policy Result: Extracts the exact AST decision (payload.decision.authorization).