{"_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_437df85366b9c7c202fcec5d12a754a6f6e45d9b273b84ccb5089cef5aa93391","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_437df85366b9c7c202fcec5d12a754a6f6e45d9b273b84ccb5089cef5aa93391","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/facebook/detr-resnet-50","wayback_timestamp_14":"20240223065455","wayback_url":"https://web.archive.org/web/20240223065455/https://huggingface.co/facebook/detr-resnet-50"},"observation_type":"presence","observed_at":"2024-02-23T06:54:55Z","receipt_hash":"sha256:b8b213d3e97dac6dcde9a0bfc2440570c1ce6063eb9e2d0d1d2a099b052ce924"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2024-02-23T06:54:55Z","object":{"captured_by":"archive.org","primary_source_url":"https://web.archive.org/web/20240223065455/https://huggingface.co/facebook/detr-resnet-50"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:0c977fa6b268298a57757dbc9f250802c94adc06c5b361029f1fe199844a12c94d9036b6a79c72600bfe2a8c415b704998ecf2cab38ab2b37876da510e57a10c","signer":"crovia.substrate","subject":{"source_collector":"wayback_hf_collector","target_id":"facebook/detr-resnet-50"},"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":"788916accc114b3777b25648533109e8c2ee4fe6a7648cb5c5484ad170912469","leaf_index":1341,"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":"83eb7b451c6ad21be8a5a4aab29ff8aff174956762ccf25ba32f83a972c6f0a7","side":"left"},{"sibling":"881e921e3818e4445a624edbf7d84a0713311d82f8ceb8b6f9a843319cc6f5af","side":"right"},{"sibling":"6f371a5efb6d5aeee397ff8df414266909020607b84d56fb50511ffdacbd5459","side":"left"},{"sibling":"14d9196718a3c0a1d4ccb14a10276c8fb2a00a3abcf8e0f16946ea507f94a5bb","side":"left"},{"sibling":"b4fa57c5b0204fba11d46c9134edf9a8fae944d78d541e6f0e414a3c4a2de8fa","side":"left"},{"sibling":"8954a4fa9118b821b997f7b6df60004453d3d837c280671010fa2b95ad453743","side":"left"},{"sibling":"dc706429ca9329d9f87781e6a735d1096c048a7ad8c2f7a6d84881e39a36669d","side":"right"},{"sibling":"8e24bd8f1696de0062b98a2edd79a6647798601f90acc680d21b03f48d4b7567","side":"right"},{"sibling":"c59ed1d735e9ba454a58daec4334d424db4345b63a61607b240281d0f5829698","side":"left"},{"sibling":"c11456baca1f5f27b55efe1996f0d6e5cf56579097d9c0c53ec5dfefbe41d72a","side":"right"},{"sibling":"01ccc3bf6e006c434313275e7c3160f7a30e4449299b31142502f8da989334c8","side":"left"},{"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_437df85366b9c7c202fcec5d12a754a6f6e45d9b273b84ccb5089cef5aa93391"}}