{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:LUB335J5RWPIANL27HLL5RN642","short_pith_number":"pith:LUB335J5","canonical_record":{"source":{"id":"astro-ph/0004366","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-26T22:13:06Z","cross_cats_sorted":[],"title_canon_sha256":"4d14bc7b47559db608a63869cbf9fa1cb1dfed6161763966d9014de38f545902","abstract_canon_sha256":"b51f1f1f09cc5ae01188de4b4943a0ab5b1fde7ae0472f37a925e1b995f4a0df"},"schema_version":"1.0"},"canonical_sha256":"5d03bdf53d8d9e80357af9d6bec5bee68b31656c0811fa1239e52d387c97bfa0","source":{"kind":"arxiv","id":"astro-ph/0004366","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0004366","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0004366v1","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0004366","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"LUB335J5RWPI","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_16","alias_value":"LUB335J5RWPIANL2","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_8","alias_value":"LUB335J5","created_at":"2026-07-04T15:20:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:LUB335J5RWPIANL27HLL5RN642","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0004366","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-26T22:13:06Z","cross_cats_sorted":[],"title_canon_sha256":"4d14bc7b47559db608a63869cbf9fa1cb1dfed6161763966d9014de38f545902","abstract_canon_sha256":"b51f1f1f09cc5ae01188de4b4943a0ab5b1fde7ae0472f37a925e1b995f4a0df"},"schema_version":"1.0"},"canonical_sha256":"5d03bdf53d8d9e80357af9d6bec5bee68b31656c0811fa1239e52d387c97bfa0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:20:06.989649Z","signature_b64":"pey0YhTJ4lXoPoqOF0AIgxSJVDm2Y73gUx4uoXC8uTYaRMDJrYM5dNzTSVLQZnCTJGVKOXz9ch1VVle1EnfHAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d03bdf53d8d9e80357af9d6bec5bee68b31656c0811fa1239e52d387c97bfa0","last_reissued_at":"2026-07-04T15:20:06.989139Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:20:06.989139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0004366","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lcMIQLcdeZOwoQqk3Lz6L6qX9J/NbTqsyh19YBIEY9AWIdaATH7TjymPEjpujFYG6Hy7mndqz6+kAjLXQiiQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T00:57:25.372017Z"},"content_sha256":"a1d0d93a4f7d4201bf3a0ddd3b493513d3c90725c29af6adbf1889ce121744e9","schema_version":"1.0","event_id":"sha256:a1d0d93a4f7d4201bf3a0ddd3b493513d3c90725c29af6adbf1889ce121744e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:LUB335J5RWPIANL27HLL5RN642","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Broad iron lines in Active Galactic Nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.C.Fabian, A.J.Young, C.S.Reynolds, K.Iwasawa","submitted_at":"2000-04-26T22:13:06Z","abstract_excerpt":"An intrinsically narrow line emitted by an accretion disk around a black hole appears broadened and skewed as a result of the Doppler effect and gravitational redshift. The fluorescent iron line in the X-ray band at 6.4-6.9keV is the strongest such line and is seen in the X-ray spectrum of many active galactic nuclei and, in particular, Seyfert galaxies. It is an important diagnostic with which to study the geometry and other properties of the accretion flow very close to the central black hole. The broad iron line indicates the presence of a standard thin accretion disk in those objects, ofte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0004366","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0004366/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:20:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4/ndwuwtbmW2MEH19QLg7mXUNVw9cB5m0x3VesbZqMx7HTM9LAzy//G0UNqzRxtXI+gyEaYQOjMuZPKBLuMqBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T00:57:25.372517Z"},"content_sha256":"48464efd9a021a8b67c6a27f2e34f9b1039abd588754fe56f64b5c689cd57096","schema_version":"1.0","event_id":"sha256:48464efd9a021a8b67c6a27f2e34f9b1039abd588754fe56f64b5c689cd57096"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LUB335J5RWPIANL27HLL5RN642/bundle.json","state_url":"https://pith.science/pith/LUB335J5RWPIANL27HLL5RN642/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LUB335J5RWPIANL27HLL5RN642/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-04T00:57:25Z","links":{"resolver":"https://pith.science/pith/LUB335J5RWPIANL27HLL5RN642","bundle":"https://pith.science/pith/LUB335J5RWPIANL27HLL5RN642/bundle.json","state":"https://pith.science/pith/LUB335J5RWPIANL27HLL5RN642/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LUB335J5RWPIANL27HLL5RN642/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:LUB335J5RWPIANL27HLL5RN642","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b51f1f1f09cc5ae01188de4b4943a0ab5b1fde7ae0472f37a925e1b995f4a0df","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-26T22:13:06Z","title_canon_sha256":"4d14bc7b47559db608a63869cbf9fa1cb1dfed6161763966d9014de38f545902"},"schema_version":"1.0","source":{"id":"astro-ph/0004366","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0004366","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0004366v1","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0004366","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_12","alias_value":"LUB335J5RWPI","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_16","alias_value":"LUB335J5RWPIANL2","created_at":"2026-07-04T15:20:06Z"},{"alias_kind":"pith_short_8","alias_value":"LUB335J5","created_at":"2026-07-04T15:20:06Z"}],"graph_snapshots":[{"event_id":"sha256:48464efd9a021a8b67c6a27f2e34f9b1039abd588754fe56f64b5c689cd57096","target":"graph","created_at":"2026-07-04T15:20:06Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0004366/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An intrinsically narrow line emitted by an accretion disk around a black hole appears broadened and skewed as a result of the Doppler effect and gravitational redshift. The fluorescent iron line in the X-ray band at 6.4-6.9keV is the strongest such line and is seen in the X-ray spectrum of many active galactic nuclei and, in particular, Seyfert galaxies. It is an important diagnostic with which to study the geometry and other properties of the accretion flow very close to the central black hole. The broad iron line indicates the presence of a standard thin accretion disk in those objects, ofte","authors_text":"A.C.Fabian, A.J.Young, C.S.Reynolds, K.Iwasawa","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-04-26T22:13:06Z","title":"Broad iron lines in Active Galactic Nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0004366","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a1d0d93a4f7d4201bf3a0ddd3b493513d3c90725c29af6adbf1889ce121744e9","target":"record","created_at":"2026-07-04T15:20:06Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b51f1f1f09cc5ae01188de4b4943a0ab5b1fde7ae0472f37a925e1b995f4a0df","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-04-26T22:13:06Z","title_canon_sha256":"4d14bc7b47559db608a63869cbf9fa1cb1dfed6161763966d9014de38f545902"},"schema_version":"1.0","source":{"id":"astro-ph/0004366","kind":"arxiv","version":1}},"canonical_sha256":"5d03bdf53d8d9e80357af9d6bec5bee68b31656c0811fa1239e52d387c97bfa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d03bdf53d8d9e80357af9d6bec5bee68b31656c0811fa1239e52d387c97bfa0","first_computed_at":"2026-07-04T15:20:06.989139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:20:06.989139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pey0YhTJ4lXoPoqOF0AIgxSJVDm2Y73gUx4uoXC8uTYaRMDJrYM5dNzTSVLQZnCTJGVKOXz9ch1VVle1EnfHAA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:20:06.989649Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0004366","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1d0d93a4f7d4201bf3a0ddd3b493513d3c90725c29af6adbf1889ce121744e9","sha256:48464efd9a021a8b67c6a27f2e34f9b1039abd588754fe56f64b5c689cd57096"],"state_sha256":"2dbf1c308adbc144489da28997caeb3d306f23a5a48aa2e4b54fe4c65dd80468"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XEP86VcWhoqLpJgyl2+oMHTjxQlrTSiI2+uZoO6rbYVVi73ndIaMxYipIMa9PpgnOiQrxY/BTowXIx4idjAwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T00:57:25.377950Z","bundle_sha256":"32d3c35f016f6120861c8d7241b0b1915d59f5d5695239192f9e351226164f17"}}