{"uid":"cap_7A7aZbh4U2G-4MkuZtTmu","slug":"blindoracle-receipt-verifier-7225143d","name":"BlindOracle Receipt Verifier","description":"Verify a BlindOracle receipt against the parts a buyer cannot check alone: is the proof_id really in BlindOracle's append-only proof rail, does its payload still hash to the stored row, and does the row's HMAC-SHA256 verify against the signing key. Also recomputes content_... | BlindOracle by Craig M. Brown (craigmbrown.com) - counterparty-risk infrastructure sold to autonomous AI agents; self-built multi-agent framework (42+ agents); ERC-8004 agent passport #60979; paid via x402 in USDC on Base","url":"https://api.craigmbrown.com/v1/services/trust.receipt-verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"prompt":{"type":"string","example":"{\"tx\": \"0x0252f07f66af83c4196428fdb52c4e351bf74091be735d0ffd7249b3e55ad5e2\"}"}}},"responseSchema":{"type":"json","schema":{"type":"object","properties":{"checks":{"type":"array","items":{"type":"object"}},"verdict":{"enum":["PASS","PASS_WITH_GAPS","FAIL","INCONCLUSIVE"],"type":"string"},"bo_trust":{"type":"object"},"seller_side_checks":{"type":"array","items":{"type":"string"}},"self_checkable_checks":{"type":"array","items":{"type":"string"}}}},"example":{"verdict":"PASS"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_PdnQbhoS0KbG-9k-RYF0A","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies a BlindOracle receipt end-to-end: checks proof_id presence in the append-only proof rail, validates payload hash, verifies HMAC-SHA256 signature, recomputes content_sha256, and confirms the Base payment — returning a structured PASS/FAIL verdict.","exampleAgentPrompt":"Can you fully verify this BlindOracle receipt for me — check that the proof_id is in the proof rail, confirm the payload hash and HMAC-SHA256 signature are valid, and verify the Base payment? Here's the receipt: {paste receipt JSON here}.","exampleUseCases":[{"title":"Buyer verifying seller's delivery proof","prompt":"I just received a BlindOracle receipt from the seller claiming they delivered the data. Can you run a full verification — check the proof_id in the proof rail, validate the payload hash, HMAC signature, and Base payment — and tell me if it's a PASS or FAIL?"},{"title":"Agent-to-agent settlement trust check","prompt":"Before my agent releases payment, I need you to verify the BlindOracle receipt the counterparty agent sent. Check the proof rail, hash, HMAC-SHA256 signature, and Base payment confirmation, and give me a verdict."},{"title":"Post-transaction receipt audit","prompt":"We completed a transaction last week using BlindOracle and I want to audit the receipt we received. Can you verify the proof_id is really in the append-only rail, confirm the content hash hasn't changed, and validate the HMAC signature?"}],"resultDescription":"A JSON object containing a verdict enum (PASS, PASS_WITH_GAPS, FAIL, or INCONCLUSIVE), an array of individual check results, a bo_trust object with BlindOracle-specific trust data, a list of seller-side checks performed, and a list of self-checkable checks — giving a complete picture of receipt authenticity.","failureModes":["proof_id not found in BlindOracle proof rail — returns FAIL verdict","payload hash mismatch — content has been tampered with, returns FAIL","HMAC-SHA256 verification failure — signing key mismatch, returns FAIL","Base payment not confirmed on-chain — returns FAIL or INCONCLUSIVE","Malformed or incomplete receipt input — may return INCONCLUSIVE","BlindOracle proof rail temporarily unavailable — returns INCONCLUSIVE"],"whenToPreferThis":"Use this endpoint when you have received a BlindOracle receipt from a counterparty and need a single, authoritative, server-side verification covering the parts a buyer cannot self-check alone — specifically: proof rail membership, HMAC-SHA256 signature validation against the signing key, and Base payment confirmation. Prefer this over the free self-checkable skill (RQ-BO-RECEIPT-VERIFY-01) when you need the seller-side checks that require access to BlindOracle's internal signing key and proof database.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:34:32.989Z","isFirstParty":false,"canonicalSlug":"blindoracle-receipt-verifier-7225143d"}