{"uid":"cap_tKU40BYZMUsx5WKxq_plJ","slug":"passage-hash-validation-332fea29","name":"Passage Hash Validation","description":"Validate exact UTF-8 SHA-256 hashes for up to 64 public or synthetic passages. No Unicode normalization, source authentication, or semantic validation. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.","url":"https://www.mahastrategies.com/api/v1/verify/evidence/passage-hashes?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"passages":{"type":"array","maxItems":64,"minItems":1},"dataClass":{"enum":["public","synthetic"],"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.010016","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":"$0.010016/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.010016","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.010016","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sv0zN2rfZmfPQZr2XluEl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.010016","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates exact UTF-8 SHA-256 hashes for up to 64 public or synthetic passages without normalization or semantic checks.","exampleAgentPrompt":"Can you verify the SHA-256 hashes for these 3 public passages I've collected — I need to confirm the exact UTF-8 hashes match without any normalization applied?","exampleUseCases":[{"title":"Audit harvested research excerpts","prompt":"I have 20 excerpts I scraped from public sources and computed SHA-256 hashes for each — can you validate that all the hashes are exactly correct for these public passages?"},{"title":"Verify synthetic dataset fingerprints","prompt":"We generated a batch of 50 synthetic text passages and assigned each a SHA-256 hash — please check that every hash is an exact UTF-8 match with no normalization so we can certify the dataset."},{"title":"Integrity check before evidence submission","prompt":"Before I submit these 10 passage hashes as evidence, can you run a validation to confirm every SHA-256 hash is an exact match for the corresponding public passage text?"}],"resultDescription":"Returns hash validation results indicating whether each supplied SHA-256 hash is an exact UTF-8 match for its passage, along with minimal receipt metadata retained for 90 days and full results retained for 24 hours.","failureModes":["Invalid or malformed SHA-256 hash format returns a validation error","Passages array exceeds 64 items triggers a schema validation rejection","Unsupported dataClass value (not 'public' or 'synthetic') causes request failure","Empty passages array rejected due to minItems constraint","Results expired after 24-hour retention window returns a not-found error"],"whenToPreferThis":"Choose this endpoint when you need strict, exact UTF-8 SHA-256 hash verification for up to 64 text passages — specifically when Unicode normalization must NOT be applied and you need a fast, low-cost integrity check for public or synthetic passage data. Prefer this over general-purpose hash utilities when you require receipt metadata and result retention with a clear audit trail.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:39:20.386Z","isFirstParty":false,"canonicalSlug":"passage-hash-validation-332fea29"}