Entry #4

2025-05-12T11:30:03.000Z

1y ago

← #3 #5 →

● Verified

Ed25519 · RFC 8032

Signed by

y6F3rt10CEcSakCrnJIYkGymA66x3VXm0zCWbPjRxP8=

Trust anchor

y6F3rt10CEcSakCrnJIYkGymA66x3VXm0zCWbPjRxP8=

Entry signature verifies under the operator's published Ed25519 trust anchor. Hash chain matches: prevHash links to entry #3.

Hash-chain context

prevHash

d1ec79ea79623e8c48405f0fd9ae78b4498d3e1abebb41ca1552915a2ba1d490

this entry · hash

2a674d78826ff22347e13ee0bfe196fcdf3772b3c6dff859a14c7fdc1e9623e8

next.prevHash (= this.hash)

2a674d78826ff22347e13ee0bfe196fcdf3772b3c6dff859a14c7fdc1e9623e8

Decision summary

Product · spec

paysafepaysafe-fraud-classifier

Cryptographic commits (SHA-256)

specHash

2a4072c5d8a65d149a4aacb27702ca105727879fc56f4f56c4cd83059a781183

inputHash

dfc4e26201b562bac53271777fbfe7858a73beedcd25a08010d5f7281bf55066

PII-safe · raw input never recorded

outputCanonicalHash

924b1b42a9ad731caaadb3e0e05e9d940207db911dca1748074d879ebd9a3050

schema-projected; not the raw text

Regulatory questions this entry answers

Field	Mandate	Answers
`L12 entry exists at all`	AI Act Art. 12 (record-keeping)	Was each high-risk AI output produced under a declared schema?
`attestation.signature`	GDPR Art. 5(1)(f), Art. 32 (integrity)	Has this record been tampered with?
`reviewerVerdict`	GDPR Art. 22, AI Act Art. 14	Did a human review the decision when required?
`fallbackTriggered`	AI Act Art. 15 (accuracy + robustness)	When the model failed, did the system fall back safely?
`inputHash`	GDPR Art. 25 (data minimisation)	Raw input never recorded — only the SHA-256 hash.
`modelIdentity`	AI Act Art. 13, PSD3 vendor diligence	Which exact model version made this decision?

Raw L12 entry (canonical form `v1`)

{
  "id": 4,
  "recordedAtMs": 1747049403000,
  "recordedAtIso": "2025-05-12T11:30:03.000Z",
  "productId": "paysafe",
  "specId": "paysafe-fraud-classifier",
  "specHash": "2a4072c5d8a65d149a4aacb27702ca105727879fc56f4f56c4cd83059a781183",
  "inputHash": "dfc4e26201b562bac53271777fbfe7858a73beedcd25a08010d5f7281bf55066",
  "outputCanonicalHash": "924b1b42a9ad731caaadb3e0e05e9d940207db911dca1748074d879ebd9a3050",
  "category": "classifier",
  "modelIdentity": {
    "provider": "anthropic",
    "model": "claude-sonnet-4-5-20250929",
    "version": "2026-05-01"
  },
  "latencyMs": 173,
  "schemaValid": true,
  "reviewerVerdict": null,
  "fallbackTriggered": false,
  "prevHash": "d1ec79ea79623e8c48405f0fd9ae78b4498d3e1abebb41ca1552915a2ba1d490",
  "hash": "2a674d78826ff22347e13ee0bfe196fcdf3772b3c6dff859a14c7fdc1e9623e8",
  "attestation": {
    "algorithm": "ed25519",
    "publicKey": "y6F3rt10CEcSakCrnJIYkGymA66x3VXm0zCWbPjRxP8=",
    "signature": "vZuN6OWvAC21lTGAu/WJsk+eTq+jiPwhlWIz0+zjX0oBfJ82fIYJt3XJBdZFx/P5AJGeJEbL1NgLFJHDuEAsAQ==",
    "signedAtIso": "2025-05-12T11:30:03.000Z",
    "canonicalForm": "v1"
  }
}

Reproduce this verification independently

Re-verify the entire chain

node verify.mjs paysafe-runtime-ai-receipts.jsonl

Cross-check with the Python verifier

python -m promethean_runtime_ai.verify paysafe-runtime-ai-receipts.jsonl

Verify the Bitcoin anchor

ots verify paysafe-runtime-ai-receipts.jsonl.anchors/2a674d78826ff223….ots