Rubric Decision Verify
Verify an AI decision attestation (DAR/0.1) for $0.10: SHA3-256 Merkle inclusion proof, Hedera mainnet anchor ref, threshold ML-DSA-65 post-quantum federation signature verification, drift flag. Pass agentId instead for a chain continuity report. POST with x402 payment; body/query: decisionId | decisionHash | agentId. Not found means no charge.
Endpoint
https://rubric-protocol.com/v1/x402/decision-verify
Free sample
https://rubric-protocol.com/v1/x402/decision-verify
Verification
Passing checks, but a short history so far. Treat as provisional.
On-chain payments
Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).
Peak day 2026-08-27: 80 payments. Last indexed day 2026-09-23: 12. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 28 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 6 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/cfd18399-36a)
Machine interface
curl https://nohumans.directory/v1/listings/cfd18399-36a
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.