{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DUDQEVSCJCTD56IGMQWNJ6O56V","short_pith_number":"pith:DUDQEVSC","canonical_record":{"source":{"id":"1005.3365","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-05-19T06:28:48Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"0017bc69e59daffb597e6864b866a776e60d33eab25cd1c093f3673f1fbef114","abstract_canon_sha256":"2080dc095d6cb40a08da40bb445058c53c7fac47255c18ac77b2c3ae7c1b8a54"},"schema_version":"1.0"},"canonical_sha256":"1d0702564248a63ef906642cd4f9ddf55953ab0aba6ec3b2d55b9f71caba01ab","source":{"kind":"arxiv","id":"1005.3365","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3365","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3365v1","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3365","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"DUDQEVSCJCTD","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DUDQEVSCJCTD56IG","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DUDQEVSC","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DUDQEVSCJCTD56IGMQWNJ6O56V","target":"record","payload":{"canonical_record":{"source":{"id":"1005.3365","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-05-19T06:28:48Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"0017bc69e59daffb597e6864b866a776e60d33eab25cd1c093f3673f1fbef114","abstract_canon_sha256":"2080dc095d6cb40a08da40bb445058c53c7fac47255c18ac77b2c3ae7c1b8a54"},"schema_version":"1.0"},"canonical_sha256":"1d0702564248a63ef906642cd4f9ddf55953ab0aba6ec3b2d55b9f71caba01ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:17.157653Z","signature_b64":"INuqjR3GZxWuSqe5GHokyvo1HCx32p5p3rNIRB3YNCtVNmuc5hlggcy/NsruRE3SAo2SryoiSd8AuqC20ZorAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d0702564248a63ef906642cd4f9ddf55953ab0aba6ec3b2d55b9f71caba01ab","last_reissued_at":"2026-05-18T02:07:17.156802Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:17.156802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.3365","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":"2026-05-18T02:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TOwdNsiuyq7Ij02QObANk6wSAIpXGUE2Qx5oF2LAffB420paC/sK5q/O5us5GPHrJKPBR4oMRv/6xd/3WyBRAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:34:40.332403Z"},"content_sha256":"31429920706dfc0f7a555f79e8f4839a82292a53697f64b2fffe9a19851dedc6","schema_version":"1.0","event_id":"sha256:31429920706dfc0f7a555f79e8f4839a82292a53697f64b2fffe9a19851dedc6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DUDQEVSCJCTD56IGMQWNJ6O56V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"\"Comets\" orbiting a black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"G. Fabbiano, G. Risaliti, G. Torricelli-Ciamponi, J. Reeves, M. Elvis, M. Salvati, P. Pietrini, R. Maiolino, V. Braito","submitted_at":"2010-05-19T06:28:48Z","abstract_excerpt":"We use a long (300 ksec), continuous Suzaku X-ray observation of the active nucleus in NGC1365 to investigate the structure of the circumnuclear BLR clouds through their occultation of the X-ray source. The variations of the absorbing column density and of the covering factor indicate that the clouds surrounding the black hole are far from having a spherical geometry (as sometimes assumed), instead they have a strongly elongated and cometary shape, with a dense head (n=10^11 cm^-3) and an expanding, dissolving tail. We infer that the cometary tails must be longer than a few times 10^13 cm and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3365","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":""},"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":"2026-05-18T02:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FonRK31faWd0xYyEtmd4Ph9rvyWsZGoH+FMzIWMnejLXSjMwlrg1DZkZ4YexgG3Pv9VvE/Vs0etMrIVBf5r+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:34:40.332771Z"},"content_sha256":"bdcd704373980817c514be7de79f2adeb12e9e3376ac902e0bd03f70d7455783","schema_version":"1.0","event_id":"sha256:bdcd704373980817c514be7de79f2adeb12e9e3376ac902e0bd03f70d7455783"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/bundle.json","state_url":"https://pith.science/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/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":"2026-06-01T23:34:40Z","links":{"resolver":"https://pith.science/pith/DUDQEVSCJCTD56IGMQWNJ6O56V","bundle":"https://pith.science/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/bundle.json","state":"https://pith.science/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DUDQEVSCJCTD56IGMQWNJ6O56V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DUDQEVSCJCTD56IGMQWNJ6O56V","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":"2080dc095d6cb40a08da40bb445058c53c7fac47255c18ac77b2c3ae7c1b8a54","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-05-19T06:28:48Z","title_canon_sha256":"0017bc69e59daffb597e6864b866a776e60d33eab25cd1c093f3673f1fbef114"},"schema_version":"1.0","source":{"id":"1005.3365","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3365","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3365v1","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3365","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"DUDQEVSCJCTD","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DUDQEVSCJCTD56IG","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DUDQEVSC","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:bdcd704373980817c514be7de79f2adeb12e9e3376ac902e0bd03f70d7455783","target":"graph","created_at":"2026-05-18T02:07:17Z","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"},"paper":{"abstract_excerpt":"We use a long (300 ksec), continuous Suzaku X-ray observation of the active nucleus in NGC1365 to investigate the structure of the circumnuclear BLR clouds through their occultation of the X-ray source. The variations of the absorbing column density and of the covering factor indicate that the clouds surrounding the black hole are far from having a spherical geometry (as sometimes assumed), instead they have a strongly elongated and cometary shape, with a dense head (n=10^11 cm^-3) and an expanding, dissolving tail. We infer that the cometary tails must be longer than a few times 10^13 cm and ","authors_text":"G. Fabbiano, G. Risaliti, G. Torricelli-Ciamponi, J. Reeves, M. Elvis, M. Salvati, P. Pietrini, R. Maiolino, V. Braito","cross_cats":["astro-ph.CO","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-05-19T06:28:48Z","title":"\"Comets\" orbiting a black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3365","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":"sha256:31429920706dfc0f7a555f79e8f4839a82292a53697f64b2fffe9a19851dedc6","target":"record","created_at":"2026-05-18T02:07:17Z","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":"2080dc095d6cb40a08da40bb445058c53c7fac47255c18ac77b2c3ae7c1b8a54","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-05-19T06:28:48Z","title_canon_sha256":"0017bc69e59daffb597e6864b866a776e60d33eab25cd1c093f3673f1fbef114"},"schema_version":"1.0","source":{"id":"1005.3365","kind":"arxiv","version":1}},"canonical_sha256":"1d0702564248a63ef906642cd4f9ddf55953ab0aba6ec3b2d55b9f71caba01ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d0702564248a63ef906642cd4f9ddf55953ab0aba6ec3b2d55b9f71caba01ab","first_computed_at":"2026-05-18T02:07:17.156802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:17.156802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"INuqjR3GZxWuSqe5GHokyvo1HCx32p5p3rNIRB3YNCtVNmuc5hlggcy/NsruRE3SAo2SryoiSd8AuqC20ZorAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:17.157653Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3365","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31429920706dfc0f7a555f79e8f4839a82292a53697f64b2fffe9a19851dedc6","sha256:bdcd704373980817c514be7de79f2adeb12e9e3376ac902e0bd03f70d7455783"],"state_sha256":"e2a91b04a193920a7abb2cd3851ee765404673d61654c6811b775a8181f4c2b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KsyDsHkQb/t4+QLQLgnCTHZJmS4HBfHkgNdXmIlaw5pYLv70a8Q4/LiewGXsvD4ztcR34uOirRSaU06GYCUJAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T23:34:40.334704Z","bundle_sha256":"5c87806144dc2877e113119f98732b95e6fe74023910b10c69ad5d47795e0819"}}