Tamper-Evident Verification
Make it hard to cheat without pretending to be a blockchain.
The goal is not tokenized infrastructure or global consensus. The goal is to make the path from evidence to certificate signed, append-only, replayable, and independently inspectable so shortcuts become noisy and expensive.
Signed facts
Append-only logs
Witness reruns
1
Canonicalize before signing
Evidence claims, proof bundles, certificates, and revocations get canonical serialization before hashing or signing so identity is sharper than presentation.
2
Separate signer roles
Producers sign facts. Reviewers sign attestations. The verifier signs conclusions. Witnesses sign replay receipts. The current public pack now includes synthetic Ed25519 signature manifests so this is an executable example, not just a future design note.
3
Append-only transparency
Artifact digests go into a transparency ledger. Replacements require new append entries. Silent mutation should be structurally invalid.
4
Independent witness reruns
Published proof bundles can be replayed in clean environments. Witness receipts only exist on exact digest matches under the expected verifier version, and the bundle itself should say which proved claims really entered the public proof batch versus which were still outside that boundary.
5
Fail closed
No proof bundle, no certificate. No logged attestation digest, no certificate. Expired signer authority, no certificate. Missing steps are hard stops.
6
Revocation stays public
When drift breaks an issued result, the revocation is an artifact too. Certificates are revocable state, not static PDFs that quietly age in place.