Create a hash-based audit receipt API
Create a stateless SHA-256 digest of supplied inputs, findings, and source revision. It is not a trusted signature or legal attestation.
The Create a hash-based audit receipt operation is part of the Audit Receipt Hash API on BRAINIAC.software. Create a stateless SHA-256 digest of supplied inputs, findings, and source revision. It is not a trusted signature or legal attestation. It is exposed as POST /api/v1/audit/receipt and priced at $0.01 USDC on Base. Payment uses the x402 exact scheme: an unpaid call returns HTTP 402 with payment requirements; after paying the exact USDC amount, retry the same request with a payment-signature header and Idempotency-Key. No account and no API key are required. Data sources for this product: The exact inputs, findings, and source revision provided in the request. Limitations: Receipts are stateless and unsigned; they are not BRAINIAC.software attestations or legal evidence of source accuracy. Verification requires retaining the exact original payload and issue timestamp. Outputs are compliance prechecks, drafts, or data lookups for human review. They are not official determinations, legal advice, identity confirmation, or certified filings. Related operations in this group include the other resources on the product page. Open the group documentation for the full request schema, field notes, and response examples before integrating.
/api/v1/audit/receiptExample request
curl -i -X POST "https://www.brainiac.software/api/v1/audit/receipt" \
-H 'content-type: application/json' \
-H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
--data-binary @- <<'JSON'
{
"product": "prevailing_wage",
"inputs": {
"wdId": "TX20260001"
},
"findings": {
"status": "WARN"
},
"sourceRevision": "TX20260001-revision-1"
}
JSONAn unpaid probe returns HTTP 402 with x402 payment requirements. After paying the exact USDC amount on Base, retry the identical request with a payment-signature header.
FAQ
- Do I need an API key? No. Pay the listed USDC amount with x402.
- What network? Base (eip155:8453), USDC.
- Is this an official determination? No. Results are for human review against the cited sources.