{"_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_10edfe5501dedbb7be788f63e2a85dd239f67316deaab28152e9c636e801ad1c","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":"31e56c70c3fd344ee117c6d74d9024feb4ff911108a02d718b6a55fe2cfca023","root_at_anchor":"31e56c70c3fd344ee117c6d74d9024feb4ff911108a02d718b6a55fe2cfca023"}],"axiom_id":"axm_10edfe5501dedbb7be788f63e2a85dd239f67316deaab28152e9c636e801ad1c","axiom_type":"AX.OBS","body":{"collector_run_at":"2026-04-26T17:52:16Z","collector_run_id":"wb_441718751c8e43e2","collector_version":"1.0.0","evidence":{"captured_by":"archive.org","memento_rel":"memento","original_url":"https://huggingface.co/deepset/roberta-base-squad2","wayback_timestamp_14":"20251130204306","wayback_url":"https://web.archive.org/web/20251130204306/https://huggingface.co/deepset/roberta-base-squad2"},"observation_type":"presence","observed_at":"2025-11-30T20:43:06Z","receipt_hash":"sha256:414450a2bedaa2f3ed4de7e14fdf96916ae333a337e403e8c7736f49a088a69a"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2025-11-30T20:43:06Z","object":{"captured_by":"archive.org","primary_source_url":"https://web.archive.org/web/20251130204306/https://huggingface.co/deepset/roberta-base-squad2"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:7bdc508ae0dbb732654727584727adc3d2c56b4816d437f1b1daba201c6399ee9e1c29226a79c8a3bc05a346fe6f637fe367638b77cc1e354954b397727f7a08","signer":"crovia.substrate","subject":{"source_collector":"wayback_hf_collector","target_id":"deepset/roberta-base-squad2"},"tsa":{"authority":"crovia.substrate.bootstrap","rfc3161_token":"{\"kind\":\"crovia.bootstrap.tsa\",\"source_jsonl\":\"/opt/crovia/private/wayback/observations.jsonl\",\"source_seal_merkle_root\":\"31e56c70c3fd344ee117c6d74d9024feb4ff911108a02d718b6a55fe2cfca023\",\"upgrade_path\":\"Sessione H \\u2014 OpenTimestamps weekly anchor\"}"},"zk_mode":"clear","zk_proof":null},"ledger":{"leaf_hash":"9f053bd95fe8d28a8dfafe6979dd9ce2cb99286dbb25595335f60fd59a1cf599","leaf_index":537,"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":"bdc75a68888e95e53497d9cf71eebdb8e08de3a75e097539e13bc9aff72e13b6","side":"left"},{"sibling":"fc081ddfb9d305f06bcc2eac9ea6b94d3591288641536d6deb8b167784b0f221","side":"right"},{"sibling":"75a2d08ff018adb0cfc116232b03b68987848bf5f8b9c21f45799876f4466267","side":"right"},{"sibling":"8096559079c30495888cb94f391b109e003051ef36e46c8ba71d55d0aa8d810d","side":"left"},{"sibling":"2f2c64ddfbbc99d2732393b830646d176fc63a163730f7c01a8c6f9ef219533d","side":"left"},{"sibling":"90df1997cd045f6237f2328b1d0ad436522a5bd15043825f9c351ef43a085951","side":"right"},{"sibling":"6c30520a7324812eaddc12d9df8a41c688434ad71f62f3cb41bf63b6c1b995b1","side":"right"},{"sibling":"60a3c4f23a97b292aa8e1fe87b12fa0822f6e7086bcfac4a15e9cea6dffe02e2","side":"right"},{"sibling":"712ad6d55d08b4907dd18d248d51a29e5f95b06853d95e4f3484f6ffcab86752","side":"right"},{"sibling":"066ed8b126daaf62a3aeb00b9ae5bad9d6b0559d2bfbda79dc76a00c72089451","side":"left"},{"sibling":"f846f12111512873af428f9aad8e356cba278a32d612fd70efb011aa46285907","side":"right"},{"sibling":"623535fc89f53ad08717073be84e8c2bb72ec74d16c1a59664cedcd566d42733","side":"right"},{"sibling":"d9f4787321cb2f66843893e927c7b365218e8b83a8547e752a589dc1146d5584","side":"right"},{"sibling":"726a39776c18e1b1059ddafb85fca25a64a50da3965a9327bd5890bb94829d34","side":"right"},{"sibling":"6851cc5038d4bb734cf48506a6e1655137e1f089817a44d9732da91812c537ad","side":"right"},{"sibling":"b2c325206b89124ba24d2e31ea7d540b6b4614663ea96edf7c615e7cab2d5bf1","side":"right"},{"sibling":"cc0e8d14567fc276aaffc2d1dc980dc8c5f78207f8e67d1a44382c24dfe0c665","side":"right"},{"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_10edfe5501dedbb7be788f63e2a85dd239f67316deaab28152e9c636e801ad1c"}}