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StillOS Notary — Claim Hash Commit
x402
StillOS Notary — Claim Hash Commit is a paid API for AI agents from nolawealthfinancial.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Commits a claim hash to a tamper-evident ledger and returns an Ed25519-signed receipt proving the claim existed at a specific time
Price / call$0.1
Success—
StatusUnknown
How this service works
StillOS Notary — commit a claim hash (tamper-evident, Ed25519-signed receipt)
Output
An Ed25519-signed receipt containing the committed claim hash, a server-side timestamp, and a cryptographic signature that allows any party to independently verify the commitment was recorded at that specific moment without tampering.
Example use cases
Example prompt
“I need to notarize this claim hash — sha256:3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b8c9d0e1f2a3b4 — using StillOS Notary so I have a tamper-evident, Ed25519-signed receipt proving it existed right now.”
Technical details
Endpoint
POSThttps://nolawealthfinancial.com/notary/commitWhen to prefer
Use this endpoint when you need a lightweight, low-cost ($0.1 USDC) cryptographic proof-of-existence for a claim or document hash, backed by an Ed25519 signature, without requiring a full blockchain transaction. Ideal for audit trails, legal timestamping, content authenticity, and compliance scenarios where tamper-evidence is required but on-chain gas costs are prohibitive.
Side effects
- Invalid or malformed hash format — returns 400 with validation error
- Payment not received or insufficient USDC — returns 402 Payment Required
- Hash already committed (duplicate submission) — may return conflict or deduplicated receipt
- Service temporarily unavailable — returns 503
- Signature generation failure — returns 500 with error detail
Tags
x402
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