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ProofAudit.ai Chain-of-Custody Verification
x402
ProofAudit.ai Chain-of-Custody Verification is a paid API for AI agents from proofaudit.ai, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-17).
Retrieves a sealed, verifiable chain-of-custody audit record with cryptographic proof hash for compliance and financial operations.
Price / call$0.025
Success—
StatusUnknown
How this service works
Capture, verify, approve, and export audit-ready evidence packs for credit, compliance, and financial operations.
Output
Returns a JSON object containing: a success and verified boolean status, the sealed SHA-256 proof hash (e.g. 'PROOF-87B43B8DEB11505A'), the on-chain protocol token contract address on the Base network, the PROOF ticker, and a link to the nodes portal at proofaudit.ai/nodes.
Example use cases
Credit underwriting audit trail
“I need to attach an audit-ready evidence pack with a sealed SHA-256 hash to our credit decision file — can you fetch the chain-of-custody verification from ProofAudit.ai for this approval?”
Regulatory compliance evidence export
“Our compliance team needs a tamper-proof chain-of-custody record for the regulator — grab the sealed verification receipt from ProofAudit.ai including the protocol token address and verification status.”
Internal financial operations sign-off
“Before we close out this transaction, can you retrieve a ProofAudit chain-of-custody record so we have a cryptographic proof that every approval step was captured and verified?”
Technical details
Endpoint
GEThttps://proofaudit.ai/api/x402/chain-of-custody?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cryptographically sealed, blockchain-anchored chain-of-custody record for compliance, credit, or financial audit purposes — especially when regulators or counterparties require tamper-proof evidence packs with SHA-256 hashes and on-chain token references on the Base network.
Side effects
- Payment not included or invalid USDC amount — returns 402 Payment Required
- Invalid or missing required query parameters — returns 400 Bad Request
- Service temporarily unavailable — returns 503 with no audit record
- Verification failure — returns success:false or verified:false in payload
- Network congestion on Base chain may delay sealed hash generation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ticker": "PROOF",
"network": "base",
"service": "ProofAudit.ai",
"success": true,
"verified": true,
"nodesPortal": "https://proofaudit.ai/nodes",
"sealedSha256": "PROOF-87B43B8DEB11505A",
"protocolToken": "0x87b43b8dEb11505ADc6898899961d6d419CaBB07"
}
}Tags
x402
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