{"_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_d845b20db22efb52ab6232be3b1660eac0c15a404db1183f9e0955db3447b1d6","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_d845b20db22efb52ab6232be3b1660eac0c15a404db1183f9e0955db3447b1d6","axiom_type":"AX.ABS","body":{"absence_streak_days":0,"collector_run_at":"","collector_run_id":"","collector_version":"","days_monitored":66,"evidence":{},"first_seen":"2026-02-20T07:00:24.760757Z","last_seen":"2026-04-27T17:01:34.835969Z","merkle_root":"0c6185a0555625cb7e4c111daa9f0f84c994714aab1ed52f6568ea8356e3b717","observation_count":36,"observation_type":"absence","observed_at":"2026-04-08T15:00:37Z","receipt_hash":"sha256:8e00fc65f28a1e222158f9835d860676616e551eca018e3727cfc585ae0ac8d5","registry_endpoint":"https://registry.croviatrust.com"},"confidence":{"method":"deterministic"},"decision":"NEGATIVE","issued_at":"2026-04-08T15:00:37Z","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":"ed25519:55d54d42d79e4a7d4d25fa2fbffc80466faa64317cae70d4022728d4f1adecaf8c5677d321a71860e2279fa8e0daf24e1e7777bb3ed2a3a9b14943c18f312b00","signer":"crovia.substrate","subject":{"source_collector":"autonomous_observer","target_id":"OpenMed/OpenMed-NER-ChemicalDetect-ModernMed-395M"},"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":"3ac8e63319a86d0c6d4871eb93d9acbd0d5608dc9318d024b1bd6ccef3885863","leaf_index":78382,"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":"5f2b295be07dd8970e9f99ba5de8ddd2d91ea5bfcf6bcfd3ef4c8a3c4b4852cb","side":"right"},{"sibling":"e1f14358e80a56f6663f9222724c5f1815162fb362ac806a9a0dfd8a86d6d7c3","side":"left"},{"sibling":"d3724e752114537aa8a0f5217086ac2a1ed0da978129c4b9ccfca3dae3df4d9e","side":"left"},{"sibling":"8b1431428a90de9110cce79c1e3b184dcd8ed594bc07d17e2a6b6af2f3f64c5b","side":"left"},{"sibling":"9d7bac315e22d8e55c66f4439e702f88162189e41c25414eb13ea3e3c4be87a4","side":"right"},{"sibling":"c18ff95947569a541090e8758a4b63c1d8d69d421673708b767d0c5427a64890","side":"left"},{"sibling":"947df7063af7699b1fc06fa5faa9409c1084f810b8a6a2483f6a7b8e8e7a2a28","side":"right"},{"sibling":"7367224010a72107da716180303151848d2e8d1ed0b8446397d947e950af2372","side":"right"},{"sibling":"14c95a1d107441fee7c8a5acfcc934ef6da7e6a04e73f07c29fda3a0da81216e","side":"right"},{"sibling":"f817323a5fcdc8b9eb83ede16f78cefd3a476c8f20d511f02486e59739021798","side":"left"},{"sibling":"9a4091ec0042b639b572878f0aed3a2705e55648ffe55b28f59b124d4e1d22c9","side":"right"},{"sibling":"59df1ba43bf1049d88c380e2479709d35f0311209666773a79dd630c0870c75f","side":"right"},{"sibling":"4c50e90052605df43d3810b7ca550d1ba6d38e8a4952cec43a81ec9f389c8c7e","side":"left"},{"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_d845b20db22efb52ab6232be3b1660eac0c15a404db1183f9e0955db3447b1d6"}}