{"uid":"cap_6uuedOgjmFV10NX2MZVhP","slug":"sha-512-hash-generator-unykorn-genesis402-ce586fec","name":"SHA-512 Hash Generator (UnyKorn / Genesis402)","description":"SHA-512 digest of text or raw bytes — Genesis402 / UnyKorn Operator Network","url":"https://twin.unykorn.org/hash-sha512?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{"hex":{"type":"string","pattern":"^0x[0-9a-fA-F]*$"},"text":{"type":"string","maxLength":49152}}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"hash-sha512","receipt":{"tx_hash":"0x<64hex>","amount_usd":0.001,"receipt_id":"g402-<16hex>"},"generated_at":"<iso8601>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wxqX1nSKtC8SM1QoTdf9e","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the SHA-512 cryptographic digest of a given text string or raw bytes (hex-encoded), returning the hash and a payment receipt.","exampleAgentPrompt":"Can you compute the SHA-512 hash of the text 'Hello, world!' for me?","exampleUseCases":[{"title":"Document integrity fingerprinting","prompt":"Hash this contract text with SHA-512 so I can store a tamper-proof fingerprint: 'This agreement is entered into on January 1, 2025 between Party A and Party B...'"},{"title":"Raw bytes digest for smart contract","prompt":"I have some raw bytes I need to SHA-512 hash before submitting to my smart contract — the hex is 0x48656c6c6f576f726c64, can you get me the digest?"},{"title":"Password or token pre-hashing","prompt":"Before I store this API secret, I want to SHA-512 hash it — please hash the string 'my-super-secret-api-key-2025' for me."}],"resultDescription":"Returns a JSON object with ok:true, the hash type ('hash-sha512'), and the SHA-512 digest of the input. Also includes a payment receipt containing the transaction hash, USD amount charged, and a unique receipt ID, plus an ISO 8601 timestamp of when the digest was generated.","failureModes":["Invalid hex encoding (hex param not matching ^0x[0-9a-fA-F]* pattern) returns an error","Text input exceeding 49152 characters is rejected","Missing both 'hex' and 'text' params leads to empty or error response","Payment failure via x402 protocol results in 402 response before hashing occurs","Malformed JSON body returns a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need a SHA-512 (512-bit) digest specifically, rather than SHA-224 or SHA-256. Prefer it over client-side hashing when you need an auditable, on-chain payment receipt as proof of computation, or when operating in an agentic context where third-party hash attestation is valuable. Use SHA-512 over shorter variants when maximum collision resistance is required, such as for signing large documents or high-security fingerprinting.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T18:55:18.053Z","isFirstParty":false,"canonicalSlug":"sha-512-hash-generator-unykorn-genesis402-ce586fec"}