proof_notarize
ActiveTool of io.github.digitalweb33333-creator/x402-endpoints
Notarize a document or data hash for AI agents: submit a SHA-256 hash (or short content hashed server-side) and get a timestamped, Ed25519-signed proof-of-existence receipt, verifiable offline with no callback. Prove an artifact, agent output or decision existed at a point in time. Honest scope: this is a SIGNED proof-of-existence receipt, NOT a blockchain-anchored or eIDAS/RFC-3161 legal timestamp. The issuer never sees your content when you send only a hash. Price: $0.01 per call (x402 payment, USDC on Base mainnet). Notarize a SHA-256 hash (or short content hashed server-side) into a timestamped, Ed25519-signed proof-of-existence receipt, verifiable offline. Signed proof, NOT a blockchain-anchored or legal (eIDAS/RFC 3161) timestamp. Input: hash or content (+memo).
Parameters schema
{
"type": "object",
"properties": {
"hash": {
"type": "string",
"pattern": "^[0-9a-fA-F]{64}$",
"description": "SHA-256 hex digest (64 hex chars) to notarize"
},
"memo": {
"type": "string",
"description": "Optional label bound into the signed proof, e.g. 'invoice #42'"
},
"content": {
"type": "string",
"description": "Alternative to hash: short content hashed server-side (SHA-256), max 100000 chars"
}
}
}No endpoints wrapped at confidence ≥ 0.50.
Parent server
io.github.digitalweb33333-creator/x402-endpoints
https://github.com/digitalweb33333-creator/x402-endpoints
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