← STACK/HUB · Attest / Log · RUBRIC v1.1
Give every agent action a tamper-evident record.
Generate a hash-chained, tamper-evident authorization record for an AI agent's task — the kind of verifiable evidence regulators and auditors are now asking agent operators to produce.
Why now: Google's Agent Payments Protocol, NIST's agent-identity work, and the proposed AI AGENT Act are converging attention on one requirement — a hash-chained, task-bounded authorization record that travels with every consequential agent action. (Trend claim — see claims register CL-019.) This generates that record client-side, right now, for free.
Authorization Record
SHA-256 Record Hash
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Chained From (previous record hash)
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Each record's hash is computed from its full contents plus the previous record's hash — altering any past record breaks the chain. Records are kept only in this browser (they survive refresh); export to preserve them. This is an unkeyed hash chain, not a cryptographic signature: it makes tampering evident within this browser, but it is not a digital signature, not notarized, and not third-party proof.
ATTEST/LOG Pro — not available
Browser-local chain storage and JSON/CSV export are available free today. Hosted storage, team dashboards and public verification links are not implemented. The historical $29/mo proposal is not for sale; scope and pricing require approval.
Paid offer unavailable