{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:GFQYAOANFQ4ZQUL75Z72AZI5HR","short_pith_number":"pith:GFQYAOAN","canonical_record":{"source":{"id":"astro-ph/0302395","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-19T19:15:46Z","cross_cats_sorted":[],"title_canon_sha256":"8b925c91d87d09678c6d9d4094d19f11f3d68557b27f48c441cdbd8831572850","abstract_canon_sha256":"f3d29cd1c7f8893a64b620773b653712e5f30fcafd1640961fc2fb5325849883"},"schema_version":"1.0"},"canonical_sha256":"316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c","source":{"kind":"arxiv","id":"astro-ph/0302395","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0302395","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0302395v1","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0302395","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_12","alias_value":"GFQYAOANFQ4Z","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_16","alias_value":"GFQYAOANFQ4ZQUL7","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_8","alias_value":"GFQYAOAN","created_at":"2026-07-04T14:12:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:GFQYAOANFQ4ZQUL75Z72AZI5HR","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0302395","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-19T19:15:46Z","cross_cats_sorted":[],"title_canon_sha256":"8b925c91d87d09678c6d9d4094d19f11f3d68557b27f48c441cdbd8831572850","abstract_canon_sha256":"f3d29cd1c7f8893a64b620773b653712e5f30fcafd1640961fc2fb5325849883"},"schema_version":"1.0"},"canonical_sha256":"316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:12:36.823638Z","signature_b64":"UYITD7nzlD87NnY+2H+wB6fg4oq6X6q3+8D/BYrTx+ULOxnI5ihHcoOiStRKirdMVCXsU4FfLX0ripL6nau2Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c","last_reissued_at":"2026-07-04T14:12:36.823244Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:12:36.823244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0302395","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":"2026-07-04T14:12:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ROFW8bfxVwNJwoST65f0HATVtZIgE96ieorceAr4B1X/251JCRWYGc/O0DH67nmnFuvpbM9HkP5lgyURcqboBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:30:48.454698Z"},"content_sha256":"4349f2aca5203153a57b010799f98e75e7ddc4dba695a37c128e79534fd61cfb","schema_version":"1.0","event_id":"sha256:4349f2aca5203153a57b010799f98e75e7ddc4dba695a37c128e79534fd61cfb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:GFQYAOANFQ4ZQUL75Z72AZI5HR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigation of the obscuring circumnuclear torus in the active galaxy Mrk231","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) ASTRON, (3) JIVE; The Netherlands), Hans-Rainer Kl\"ockner (1, Michael A. Garrett (3) ((1) Kapteyn Astronomical Institute, University of Groningen, Willem A. Baan (2)","submitted_at":"2003-02-19T19:15:46Z","abstract_excerpt":"Here we report on observations of powerful hydroxyl (OH) line emissions that trace the obscuring material within the circumnuclear environment of the galaxy Markarian 231. The hydroxyl (mega)-maser emission shows the characteristics of a rotating, dusty, molecular torus (or thick disk) located between 30 and 100 pc from the central engine. We now have a clear view of the physical conditions, the kinematics and the spatial structure of this material on intermediate size scales, confirming the main tenets of unification models."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0302395","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/0302395/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":"2026-07-04T14:12:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rvs7/6ziyQu1o2b0QRvaZ8CYwaQsd/e5Zb6mpyV2M63Rynsj3i4AaDJl00771bNPCWWAVgGSyCRGQt/l8W8uAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:30:48.455114Z"},"content_sha256":"55db55ee862f02de86c1f75b43a6ffcc1b8704291d73560b4606f319df18f412","schema_version":"1.0","event_id":"sha256:55db55ee862f02de86c1f75b43a6ffcc1b8704291d73560b4606f319df18f412"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/bundle.json","state_url":"https://pith.science/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/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":"2026-08-06T05:30:48Z","links":{"resolver":"https://pith.science/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR","bundle":"https://pith.science/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/bundle.json","state":"https://pith.science/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GFQYAOANFQ4ZQUL75Z72AZI5HR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:GFQYAOANFQ4ZQUL75Z72AZI5HR","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":"f3d29cd1c7f8893a64b620773b653712e5f30fcafd1640961fc2fb5325849883","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-19T19:15:46Z","title_canon_sha256":"8b925c91d87d09678c6d9d4094d19f11f3d68557b27f48c441cdbd8831572850"},"schema_version":"1.0","source":{"id":"astro-ph/0302395","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0302395","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0302395v1","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0302395","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_12","alias_value":"GFQYAOANFQ4Z","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_16","alias_value":"GFQYAOANFQ4ZQUL7","created_at":"2026-07-04T14:12:36Z"},{"alias_kind":"pith_short_8","alias_value":"GFQYAOAN","created_at":"2026-07-04T14:12:36Z"}],"graph_snapshots":[{"event_id":"sha256:55db55ee862f02de86c1f75b43a6ffcc1b8704291d73560b4606f319df18f412","target":"graph","created_at":"2026-07-04T14:12:36Z","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/0302395/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Here we report on observations of powerful hydroxyl (OH) line emissions that trace the obscuring material within the circumnuclear environment of the galaxy Markarian 231. The hydroxyl (mega)-maser emission shows the characteristics of a rotating, dusty, molecular torus (or thick disk) located between 30 and 100 pc from the central engine. We now have a clear view of the physical conditions, the kinematics and the spatial structure of this material on intermediate size scales, confirming the main tenets of unification models.","authors_text":"2), (2) ASTRON, (3) JIVE; The Netherlands), Hans-Rainer Kl\"ockner (1, Michael A. Garrett (3) ((1) Kapteyn Astronomical Institute, University of Groningen, Willem A. Baan (2)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-02-19T19:15:46Z","title":"Investigation of the obscuring circumnuclear torus in the active galaxy Mrk231"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0302395","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":"sha256:4349f2aca5203153a57b010799f98e75e7ddc4dba695a37c128e79534fd61cfb","target":"record","created_at":"2026-07-04T14:12:36Z","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":"f3d29cd1c7f8893a64b620773b653712e5f30fcafd1640961fc2fb5325849883","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-19T19:15:46Z","title_canon_sha256":"8b925c91d87d09678c6d9d4094d19f11f3d68557b27f48c441cdbd8831572850"},"schema_version":"1.0","source":{"id":"astro-ph/0302395","kind":"arxiv","version":1}},"canonical_sha256":"316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c","first_computed_at":"2026-07-04T14:12:36.823244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:12:36.823244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UYITD7nzlD87NnY+2H+wB6fg4oq6X6q3+8D/BYrTx+ULOxnI5ihHcoOiStRKirdMVCXsU4FfLX0ripL6nau2Dw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:12:36.823638Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0302395","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4349f2aca5203153a57b010799f98e75e7ddc4dba695a37c128e79534fd61cfb","sha256:55db55ee862f02de86c1f75b43a6ffcc1b8704291d73560b4606f319df18f412"],"state_sha256":"653c9ffee1d4e8027d36c9a873683160a0f6dd3b166d5e33f406caa97af7c40a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aOA1K6+LweTrt4WicICcEa+PZdk6ftEsrpBMIr5gRmHNzOlLl/OQC4luJyu5IwOhsz+A4SBo2J9P8fcH7l+jAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:30:48.459417Z","bundle_sha256":"ed999daa891ad4b36cf5fccad8b83f9ccf914ffa9d9028915b807e7cc34e8a9a"}}