{"_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_f2f5ed09849448a911db1b363b6b3476f5502db7006581e4ff3c8187e5e1df41","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":"8a816048982f72db5efa56390c8b06e8773946b1d3a25139820455629f6aa37d","root_at_anchor":"8a816048982f72db5efa56390c8b06e8773946b1d3a25139820455629f6aa37d"}],"axiom_id":"axm_f2f5ed09849448a911db1b363b6b3476f5502db7006581e4ff3c8187e5e1df41","axiom_type":"AX.ABS","body":{"absence_streak_days":0,"collector_run_at":"","collector_run_id":"","collector_version":"","days_monitored":66,"evidence":{},"first_seen":"2026-02-20T03:00:28.940129Z","last_seen":"2026-04-27T08:00:40.605297Z","merkle_root":"0c6185a0555625cb7e4c111daa9f0f84c994714aab1ed52f6568ea8356e3b717","observation_count":51,"observation_type":"absence","observed_at":"2026-02-23T16:00:14Z","receipt_hash":"sha256:6ef8da5a60bc75cc84af44d183f186bdaf818660adfbf8adeb96e8ead0117a89","registry_endpoint":"https://registry.croviatrust.com"},"confidence":{"method":"deterministic"},"decision":"NEGATIVE","issued_at":"2026-02-23T16:00:14Z","notes":"AX.ABS minted from collector record with observation_type=absence","object":{"captured_by":"autonomous_observer","primary_source_url":""},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:3f84c341522fb12bd812d478aa8d48f858eae2d5030acc4449989012ca3e500ed86eb5e552ae301d2a84df2b1c4ce1816d414c89118b74ace107822f870cd108","signer":"crovia.substrate","subject":{"source_collector":"autonomous_observer","target_id":"OpenMed/OpenMed-NER-ChemicalDetect-SnowMed-568M"},"tsa":{"authority":"crovia.substrate.bootstrap","rfc3161_token":"{\"kind\":\"crovia.bootstrap.tsa\",\"source_jsonl\":\"/opt/crovia/hf_datasets/global-ai-training-omissions/observations.jsonl\",\"source_seal_merkle_root\":\"8a816048982f72db5efa56390c8b06e8773946b1d3a25139820455629f6aa37d\",\"upgrade_path\":\"Sessione H \\u2014 OpenTimestamps weekly anchor\"}"},"zk_mode":"clear","zk_proof":null},"ledger":{"leaf_hash":"25c45bd6593b802a3d20dc717039d0169b828eab1ef3223531cae1857460cab5","leaf_index":76542,"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":"682dd5b58cf9912f59bb7089f10e4ed56c27a0f34e3f2e66ca051893407e370b","side":"right"},{"sibling":"8e4a9b88aa3b08a76c00fbbac64d67ef6d0d723320e303b4496fd167511d1477","side":"left"},{"sibling":"2d2a21e353200f4be7484d9e878e63a6d80313fb4847efb179968603e31968fc","side":"left"},{"sibling":"a6c0e5663a804f34202f96f2208480fd77314dc5eb072400b2a96eb2a93d9073","side":"left"},{"sibling":"5ebac765b22e71ccf1e002634761f7746dc201d67a5e5ad53576a9be7462d827","side":"left"},{"sibling":"f9e8020222437f648895cf9bb1383d0165776ed040226ce68c3347bcb39e8793","side":"left"},{"sibling":"987d3584cfaea60b260a5d66ecf7d0eba73c741e93b72fb26579b0bf530dce22","side":"left"},{"sibling":"00f01caf30d168f31f740192ed3f3201f4e4aaaaa41c5e0a1526fe0b78115cc8","side":"left"},{"sibling":"fa309cb234dc93f1be64f8ca85a2f2248cd7c16661175af7951f389981fbcfc5","side":"right"},{"sibling":"adaedd5ac3e556dfb02b43a1dbbae487b65b31ed202efc6ee0a25c04b305c049","side":"left"},{"sibling":"bd71cf8ae9a77b9951fb0c20909b1ee942ba05c92b7cb299b533051c3d8ef239","side":"right"},{"sibling":"701946ccff494318f1a2d086a68da7b6d390082ec0dba2e04a5aa4cd51289d20","side":"left"},{"sibling":"33424e652ea44304cb406c6648c64abcc7beb38a1252d692bfc8d23638f2b948","side":"right"},{"sibling":"65ff23311867bed6ed3a2828669ef534081c1feb92557143850e59cdc9c50a08","side":"left"},{"sibling":"0fef91ab88810c661a18c430bde793ce9e2b5d0c1f8a5c1fbc689fbd5721cada","side":"right"},{"sibling":"309f6b889442fc3071c47ed203e9df610e54abc910768c36466c7eb883a80716","side":"right"},{"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_f2f5ed09849448a911db1b363b6b3476f5502db7006581e4ff3c8187e5e1df41"}}