{"status":"attested","page":"https://annalist.dev/mcp/io.github.ChanghuLiu/opc-ua-nodeset-compatibility-gate","statement":{"type":"annalist.mcp-check/v1","issuer":"https://annalist.dev","subject":{"name":"io.github.ChanghuLiu/opc-ua-nodeset-compatibility-gate","url":"https://nodeset.regevidencehub.com/mcp"},"issued_at":"2026-10-17T01:08:37Z","valid_until":"2026-10-24T01:08:37Z","grade":"A","score":90,"facts":{"probes_7d":3,"up_pct_7d":100,"median_ms":971,"access":"open","tools_count":5,"tools_changed_14d":true,"last_tools_change":"2026-10-15","domain_age_days":26,"registry_status":"active"},"flags":["new_domain","tools_changed"],"reasons":["+: answered 100% of our probes in 7 days","-10: domain registered 26 days ago","!: its tools changed on 2026-10-15 (changed 1); no points deducted, review before trusting them"],"method":"mcp-1","evidence":{"probes":"derived/checks/mcp/probes/","ledger":"https://github.com/ryanroskowski/annalist-ledger"}},"signature":"mgtF9DatKFqbCLxTiOXnBZaaDxjMsGLpLNEh1P4GYqWRt_hLlL5SKTGm6cBAUZh6_TyE3gr66GKVimAG06rBBA","key_id":"187e49f200625a2f","public_key_url":"https://api.annalist.dev/.well-known/annalist-key.json","how_to_verify":"Ed25519 signature (base64url) over the RFC 8785 canonical JSON of `statement`, checked with the public key at https://api.annalist.dev/.well-known/annalist-key.json (key_id must match). Then check valid_until. The probes behind it are archived daily, and each day's archive hashes are in the public ledger."}