{"_canonicalization":{"envelope_id":"axm_ + sha256(envelope minus {signature, axiom_id, anchors})","envelope_signature":"ed25519(envelope minus {signature, axiom_id})","json":"sort_keys=True, separators=(',',':'), ensure_ascii=False, allow_nan=False, utf-8","leaf_hash":"sha256(0x00 || canonical_json(envelope_full))","seal_signature":"ed25519(seal minus {signature, sig_algorithm})"},"axiom_id":"axm_a2805dcc9a005c0c964bec59c1e1c282933a6fbf9926f1155e116485ed69bc19","bitcoin_anchor":{"bitcoin_attestations":["bitcoin_block_949451"],"calendar_attestations":["https://finney.calendar.eternitywall.com","https://btc.calendar.catallaxy.com","https://alice.btc.calendar.opentimestamps.org","https://bob.btc.calendar.opentimestamps.org"],"ots_url":"/registry/data/substrate/anchors/77fc9c28fae777b81da5b495b3115474df6592dfac590333213d3bdf8b94a9b3.ots","stamped_at":"2026-05-15T03:00:03Z","status":"bitcoin"},"envelope":{"anchors":[{"chain":"crovia.axiom_graph","height":0,"merkle_proof":"spider_vendor_press_v1","root_at_anchor":"spider_vendor_press_v1"}],"axiom_id":"axm_a2805dcc9a005c0c964bec59c1e1c282933a6fbf9926f1155e116485ed69bc19","axiom_type":"AX.OBS","body":{"axiom_subtype":"news.vendor_press.v1","category":"news","fingerprint":"84ec979458ba5cad0dad4efedd30330ea3e83f01290c8ffd025a686a53bca0dc","published":"Mon, 12 May 2025 10:30:00 GMT","receipt_hash":"84ec979458ba5cad0dad4efedd30330ea3e83f01290c8ffd025a686a53bca0dc","schema":"spider.news.vendor_press.v1","spider":"vendor_press","spider_record":{"axiom_subtype":"news.vendor_press.v1","category":"news","decision_hint":"POSITIVE","envelope_target":"AX.OBS","fingerprint":"84ec979458ba5cad0dad4efedd30330ea3e83f01290c8ffd025a686a53bca0dc","observed_at":"2026-05-03T15:11:27.656745Z","parent_run_hash":null,"published":"Mon, 12 May 2025 10:30:00 GMT","runtime_version":"0.1.0","schema":"spider.news.vendor_press.v1","source_status":200,"source_url":"https://openai.com/blog/rss.xml","spider":"vendor_press","summary_excerpt":"HealthBench is a new evaluation benchmark for AI in healthcare which evaluates models in realistic scenarios. Built with input from 250+ physicians, it aims to provide a shared standard for model performance and safety in health.","title":"Introducing HealthBench","url":"https://openai.com/index/healthbench","vendor":"openai"},"summary":"HealthBench is a new evaluation benchmark for AI in healthcare which evaluates models in realistic scenarios. Built with input from 250+ physicians, it aims to provide a shared standard for model performance and safety in health.","title":"Introducing HealthBench","vendor":"openai"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2026-05-03T15:11:27Z","notes":"Spider vendor_press (news) news.vendor_press.v1","object":{"captured_by":"crovia.spider.vendor_press","primary_source_url":"https://openai.com/index/healthbench"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:a5ce389ee7b03b4e6b5c65f7f9aa456f2f43c6842fc6248b334f966482e275a8b99e1985e65eec44e111ea132b8de283d82512a3e1e524805e0b6318e58b3f08","signer":"crovia.substrate","subject":{"observed_at":"2026-05-03T15:11:27Z","source_collector":"spider:vendor_press","target_id":"https://openai.com/index/healthbench"},"tsa":{"authority":"crovia.substrate.bootstrap","rfc3161_token":"{\"kind\":\"crovia.bootstrap.tsa\",\"source_jsonl\":\"/opt/crovia/spider/data/news/vendor_press_v1.jsonl\",\"source_seal_merkle_root\":\"spider_vendor_press_v1\",\"upgrade_path\":\"Sessione H \\u2014 OpenTimestamps weekly anchor\"}"},"zk_mode":"clear","zk_proof":null},"ledger":{"leaf_hash":"b38b2e8ae207882e5a4274f6a9f35fdc9957d604b165c8562642a7b2273ae667","leaf_index":110923,"ledger_path":"/opt/crovia/substrate/axiom_ledger.jsonl"},"merkle_proof":{"hash_alg":"sha256","leaf_prefix":"0x00","node_prefix":"0x01","odd_leaf_rule":"duplicate_last","path":[{"sibling":"9a98274c3b10bcfbc2cd68cc7709b1060eea8a25a8bef56939619003d17530e8","side":"left"},{"sibling":"7c87fb02233554f2e04cc5ec3e8bf7ef43b968d7fffbd812355e2ccb9ec214f8","side":"left"},{"sibling":"f175d3b77221caf700c6f7bba4959c22c0f51752f45b005c44d99c1c9bad626e","side":"right"},{"sibling":"386516e1548ba3fad8ffca038fecc010c2fdeb4264d2a226f28de0fa2ee0a30f","side":"left"},{"sibling":"fd792760dfae754ef701621badccacdafa1baf43485cdaa89625648159358dba","side":"right"},{"sibling":"b396d2e8f7666ccf097a4ec173fade90df1d39622c1acff9b28a71449f3acb44","side":"right"},{"sibling":"c671576089fa5f6042fbdf1d83dcb7c7b36c6c328ae7d7245265ae422f3b259d","side":"left"},{"sibling":"ca6a036722340b17df4f71b3390427a3c9dc7de2350be3f627643c099b1d6fff","side":"right"},{"sibling":"a12bc44fb9538f6639351dfe7c338e43268b11535891534e779b68817419df3b","side":"left"},{"sibling":"ec53a51e3c163eac5d1bee6f74ea7b818c471f9ef7a337561df752e6812d9748","side":"right"},{"sibling":"7322dcde9f6dec40cc973ca12dd1ebd16fe5aecf078317f5e57c51a436730eb5","side":"right"},{"sibling":"a6d6e5bc888edc394757fbba02b675bac6ad0831e36a6f5ebbaa4e5548f25603","side":"right"},{"sibling":"76d7c4385d71ae8104107105be66eddb792e01ed6e493db5a9b4eec5441abb76","side":"left"},{"sibling":"b03f005860bf95148ea89c703a32ca19ab7a2ca71b58bb628ff94a9edb8703b0","side":"left"},{"sibling":"21d1e30b556f553dc939fddc23e6367f0a7755ebe3dd489dc0001cef017beb7f","side":"right"},{"sibling":"f2817ab288b5324fe49770372c7a10f33f7cd11005f8d4c0a730316f5229dc98","side":"left"},{"sibling":"725fac972e772ca0dc598810ea1abc70df472f72d2d6ab8a0baee2b80e5d2f4c","side":"left"},{"sibling":"98fc57dfef8873b512edc8340f7181df57302bb96777625e072235c62d7c5895","side":"right"}]},"schema":"crovia.axiom_proof.v1","seal":{"first_collector_run_id":"","first_receipt_hash":"","jsonl_path":"/opt/crovia/substrate/axiom_ledger.jsonl","key_id":"430895f101d38164","last_collector_run_id":"","last_receipt_hash":"","leaf_count":134292,"merkle_root":"77fc9c28fae777b81da5b495b3115474df6592dfac590333213d3bdf8b94a9b3","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","run_id":"hourly_json_retrofit_20260515T023701Z","schema":"crovia.seal.v1","seal_family_version":"crovia-seal-family/1","seal_kind":"substrate_batch","sealed_at":"2026-05-15T02:37:25Z","sig_algorithm":"ed25519","signature":"68107a834b00b24f5d4501e5ec727445311f132a486567ecc4c72a4e6dff24c8c21f2de3105293353ba5fdbe370d032819af6aa70f694e2e39b6af6737507009","signer_version":"1.1.0"},"trust_root":{"key_id":"430895f101d38164","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","signature_algorithm":"ed25519","url":"/registry/canon/TRUST_ROOT.md"},"verifier":{"spec":"/registry/canon/AXIOM_RECEIPT_v1.md","url":"/v/axm_a2805dcc9a005c0c964bec59c1e1c282933a6fbf9926f1155e116485ed69bc19"}}