{"_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_71bd71498d9dc955527ed50d0afd9a5fed1aa61d46e9b2bb2f42d3362f3ca09a","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_71bd71498d9dc955527ed50d0afd9a5fed1aa61d46e9b2bb2f42d3362f3ca09a","axiom_type":"AX.ABS","body":{"absence_streak_days":65,"collector_run_at":"","collector_run_id":"","collector_version":"","days_monitored":65,"evidence":{},"first_seen":"2026-02-20T12:00:53.849981Z","last_seen":"2026-04-26T18:00:58.746922Z","merkle_root":"0c6185a0555625cb7e4c111daa9f0f84c994714aab1ed52f6568ea8356e3b717","observation_count":37,"observation_type":"absence","observed_at":"2026-02-22T11:00:12Z","receipt_hash":"sha256:e18afb587bee209dadc8300f3fbf89dacb52f615a81fc99df64f07261f72b270","registry_endpoint":"https://registry.croviatrust.com"},"confidence":{"method":"deterministic"},"decision":"NEGATIVE","issued_at":"2026-02-22T11:00:12Z","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:f9c05595ffae07b0a9031d9f911d4cf270d333b2618356fbcb0f9d42c34a6a163669e60d4410b737c8d0ff44fee03377a52bf75b1c58b0fbe431c635f3a76a02","signer":"crovia.substrate","subject":{"source_collector":"autonomous_observer","target_id":"cambridgeltl/SapBERT-UMLS-2020AB-all-lang-from-XLMR"},"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":"567b46d6e5947390553367b3fc8de2b9b68222d3b6c7947e142745663a293346","leaf_index":81087,"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":"59332d5c674db40dd97b592dae87c39aceb003d3d4e8198af2f899b28c417710","side":"left"},{"sibling":"973c253754a7cc1b80088879290b41bc84e222632f34c5d2c24307e71e8490a0","side":"left"},{"sibling":"259b2d1566097e2a306310b558b3df986d4a0568d1d9d5c77631f0b2a5e8f2df","side":"left"},{"sibling":"ddd8fb13ed28a32b26e8a70ea677a8b4c90d55966d1d31f466f22a6538e06e35","side":"left"},{"sibling":"c2d7f3448272c193820dfbf0a3aef2fcc1ac64779d28f8438e4b0a5b429f84f7","side":"left"},{"sibling":"c3bdadcd2dad125ee941d25ef444a73dd41ff31bd5c58f28246f327989787a6a","side":"left"},{"sibling":"223d3a431461874b8fe0ed1848f6ac43a122bedc34e1c4192240b9ba6ed2fc09","side":"right"},{"sibling":"e7529f5b69769d45ae4c2bd5b611ea6676fed94f94c7c37fd7c37fa1ed03892f","side":"left"},{"sibling":"8844fa40a0d1af172234c19b1b8f4c2be75ee98d647c9883568aec26751eca1f","side":"right"},{"sibling":"5000ace9fdeb53f255113c632e4a9038b889a46a8c50b1a48db4ef970c8bb973","side":"right"},{"sibling":"1a3674ca008620611dac11f5e2d3df1c02c5b3d39bf3869c0c31effc3188fd0d","side":"left"},{"sibling":"62f360230abd3a01b1010285bcd1c6d4ecee2e7a16cbe22351423ec37313fb09","side":"left"},{"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_71bd71498d9dc955527ed50d0afd9a5fed1aa61d46e9b2bb2f42d3362f3ca09a"}}