SCVD x402 Verifier

The definition of one named x402 defect class from the store's registered vocabulary: what a clear door asserts, what a buyer loses when it is present, whether it is detectable without paying, which check reports it, and what observation would disprove it. Pass no id to list every class. Calls record traffic statistics; repeated calls can add further records.

get_defect_definition

Read what the signed weekly x402 readiness corpus holds about one host: rounds probed of rounds since first sighting, the last signed verdict, the tier with its fraction, the gaps counted against the observer. From the chain, not a live probe; a host never met comes back as never met. For an eligible host with no recorded probe, the lookup records its hostname and ask count in the public queue at /corpus/asked.json for a later sweep of its discovery documents and any discovered endpoint; no caller identity is included in that queue. Calls record traffic statistics; repeated calls can add further records.

lookup_endpoint_readiness

Preflight an x402 endpoint before paying it: one unpaid probe answering whether the URL serves a well-formed x402 v2 challenge a stock client could sign — 402 status, parseable PAYMENT-REQUIRED, signable accepts, testnet catch — with every check named and what a single probe cannot tell you. A shape check at one moment, never an uptime or delivery claim. Calls record traffic statistics; repeated calls can add further records.

preflight_x402_endpoint

Check the signature of a certificate, stamp or anchor this store issued, using its id. Returns valid, the artifact kind, and a short note; it does not return the artifact bytes or key. Free forever, whether or not anyone bought the thing. Calls record traffic statistics; repeated calls can add further records.

verify_scvd_artifact

Verify an x402 signed receipt or offer from any issuer: structure, signature against the issuer's key (pass public_key_hex for a fully offline check; otherwise the did:web key is resolved), liveness. A verdict with every check named. Establishes the bytes and the key, never settlement or delivery. Calls record traffic statistics; repeated calls can add further records.

verify_x402_receipt