{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:6JGOBGHGXJC74TAKFGQFXVMKIT","short_pith_number":"pith:6JGOBGHG","canonical_record":{"source":{"id":"2101.05818","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T19:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"33cccc79ccef9529344141e8487b4fd0523217ea14f34998ecb1a6c5b5bb49cc","abstract_canon_sha256":"08340762e1583b19fe41e04300b4f0f2f8438a82a4f46e05aee45107a53e5870"},"schema_version":"1.0"},"canonical_sha256":"f24ce098e6ba45fe4c0a29a05bd58a44ed5ce055580d55909c4d598b132c91ad","source":{"kind":"arxiv","id":"2101.05818","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05818","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05818v1","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05818","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_12","alias_value":"6JGOBGHGXJC7","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_16","alias_value":"6JGOBGHGXJC74TAK","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_8","alias_value":"6JGOBGHG","created_at":"2026-07-05T02:29:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:6JGOBGHGXJC74TAKFGQFXVMKIT","target":"record","payload":{"canonical_record":{"source":{"id":"2101.05818","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T19:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"33cccc79ccef9529344141e8487b4fd0523217ea14f34998ecb1a6c5b5bb49cc","abstract_canon_sha256":"08340762e1583b19fe41e04300b4f0f2f8438a82a4f46e05aee45107a53e5870"},"schema_version":"1.0"},"canonical_sha256":"f24ce098e6ba45fe4c0a29a05bd58a44ed5ce055580d55909c4d598b132c91ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:29:41.433627Z","signature_b64":"Cl8qZjG5Oq2gpAOYQ0ISOLvDDNjF7IHxD3zjWUX84seutk/L4qpneBava1PlNiXEmRGNj2A2KFzvy1deRzSHAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f24ce098e6ba45fe4c0a29a05bd58a44ed5ce055580d55909c4d598b132c91ad","last_reissued_at":"2026-07-05T02:29:41.433138Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:29:41.433138Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.05818","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":"2026-07-05T02:29:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"26hkPv2uc6qetbzQxagt1j2vmB6xdflskLsCxnwRfCA8Qj6uvg0nGGsRIuUYNiuuKpfZjIHigjDgEmvxhts+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T22:05:47.580927Z"},"content_sha256":"e258d718b146cbdd44a9a4c4d23a738d1e421fd5111e3223d118e643a0db8b70","schema_version":"1.0","event_id":"sha256:e258d718b146cbdd44a9a4c4d23a738d1e421fd5111e3223d118e643a0db8b70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:6JGOBGHGXJC74TAKFGQFXVMKIT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Apertif view of the OH Megamaser IRAS 10597+5926: OH 18 cm satellite lines in wide-area HI surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. H. W. M. Coolen, A. Kutkin, \\'A. Mika, B. Adebahr, D. M. Lucero, D. Vohl, E. A. K. Adams, G. Marcel Loose, H. D\\'enes, H. Mulder, H. Roberts, J. Darling, J. M. van der Hulst, Joeri van Leeuwen, J. Ziemke, Kelley M. Hess, L. C. Oostrum, M. Ivashina, M. J. Norden, M. Ruiter, N. J. Vermaas, Raffaella Morganti, R. Schulz, S. Damstra, S. J. Wijnholds, T. A. Oosterloo, V. A. Moss, W. J. G. de Blok, Yogesh Maan","submitted_at":"2021-01-14T19:00:06Z","abstract_excerpt":"We present the serendipitous detection of the two main OH maser lines at 1667 and 1665 MHz associated with IRAS 10597+5926 at z = 0.19612 in the untargeted Apertif Wide-area Extragalactic Survey (AWES), and the subsequent measurement of the OH 1612 MHz satellite line in the same source. With a total OH luminosity of log(L/L_Sun) = 3.90 +/- 0.03, IRAS 10597+5926 is the fourth brightest OH megamaser (OHM) known. We measure a lower limit for the 1667/1612 ratio of R_1612 > 45.9 which is the highest limiting ratio measured for the 1612 MHz OH satellite line to date. OH satellite line measurements "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05818","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/2101.05818/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":"2026-07-05T02:29:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E6Q8/u2JTncfb6fcPvNdqW1KZ7b/jH9xq/nSSOImk5BDaQyUxGCRYOTM1lByG1+b+JR6gSP/WYdd9wHqPd+WBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T22:05:47.581472Z"},"content_sha256":"e207d07ed37619ebde4d21e5ffcc7850faa7f2f302ad580e74bd6ab3985b3a2a","schema_version":"1.0","event_id":"sha256:e207d07ed37619ebde4d21e5ffcc7850faa7f2f302ad580e74bd6ab3985b3a2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/bundle.json","state_url":"https://pith.science/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/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":"2026-08-18T22:05:47Z","links":{"resolver":"https://pith.science/pith/6JGOBGHGXJC74TAKFGQFXVMKIT","bundle":"https://pith.science/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/bundle.json","state":"https://pith.science/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6JGOBGHGXJC74TAKFGQFXVMKIT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6JGOBGHGXJC74TAKFGQFXVMKIT","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":"08340762e1583b19fe41e04300b4f0f2f8438a82a4f46e05aee45107a53e5870","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T19:00:06Z","title_canon_sha256":"33cccc79ccef9529344141e8487b4fd0523217ea14f34998ecb1a6c5b5bb49cc"},"schema_version":"1.0","source":{"id":"2101.05818","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05818","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05818v1","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05818","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_12","alias_value":"6JGOBGHGXJC7","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_16","alias_value":"6JGOBGHGXJC74TAK","created_at":"2026-07-05T02:29:41Z"},{"alias_kind":"pith_short_8","alias_value":"6JGOBGHG","created_at":"2026-07-05T02:29:41Z"}],"graph_snapshots":[{"event_id":"sha256:e207d07ed37619ebde4d21e5ffcc7850faa7f2f302ad580e74bd6ab3985b3a2a","target":"graph","created_at":"2026-07-05T02:29:41Z","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/2101.05818/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the serendipitous detection of the two main OH maser lines at 1667 and 1665 MHz associated with IRAS 10597+5926 at z = 0.19612 in the untargeted Apertif Wide-area Extragalactic Survey (AWES), and the subsequent measurement of the OH 1612 MHz satellite line in the same source. With a total OH luminosity of log(L/L_Sun) = 3.90 +/- 0.03, IRAS 10597+5926 is the fourth brightest OH megamaser (OHM) known. We measure a lower limit for the 1667/1612 ratio of R_1612 > 45.9 which is the highest limiting ratio measured for the 1612 MHz OH satellite line to date. OH satellite line measurements ","authors_text":"A. H. W. M. Coolen, A. Kutkin, \\'A. Mika, B. Adebahr, D. M. Lucero, D. Vohl, E. A. K. Adams, G. Marcel Loose, H. D\\'enes, H. Mulder, H. Roberts, J. Darling, J. M. van der Hulst, Joeri van Leeuwen, J. Ziemke, Kelley M. Hess, L. C. Oostrum, M. Ivashina, M. J. Norden, M. Ruiter, N. J. Vermaas, Raffaella Morganti, R. Schulz, S. Damstra, S. J. Wijnholds, T. A. Oosterloo, V. A. Moss, W. J. G. de Blok, Yogesh Maan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T19:00:06Z","title":"Apertif view of the OH Megamaser IRAS 10597+5926: OH 18 cm satellite lines in wide-area HI surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05818","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:e258d718b146cbdd44a9a4c4d23a738d1e421fd5111e3223d118e643a0db8b70","target":"record","created_at":"2026-07-05T02:29:41Z","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":"08340762e1583b19fe41e04300b4f0f2f8438a82a4f46e05aee45107a53e5870","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T19:00:06Z","title_canon_sha256":"33cccc79ccef9529344141e8487b4fd0523217ea14f34998ecb1a6c5b5bb49cc"},"schema_version":"1.0","source":{"id":"2101.05818","kind":"arxiv","version":1}},"canonical_sha256":"f24ce098e6ba45fe4c0a29a05bd58a44ed5ce055580d55909c4d598b132c91ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f24ce098e6ba45fe4c0a29a05bd58a44ed5ce055580d55909c4d598b132c91ad","first_computed_at":"2026-07-05T02:29:41.433138Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:29:41.433138Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Cl8qZjG5Oq2gpAOYQ0ISOLvDDNjF7IHxD3zjWUX84seutk/L4qpneBava1PlNiXEmRGNj2A2KFzvy1deRzSHAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:29:41.433627Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.05818","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e258d718b146cbdd44a9a4c4d23a738d1e421fd5111e3223d118e643a0db8b70","sha256:e207d07ed37619ebde4d21e5ffcc7850faa7f2f302ad580e74bd6ab3985b3a2a"],"state_sha256":"1c9c65ab25fae0e595e3d635962f00389b46bf0f4244538d19e7bab562fd7430"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1TnZMH7R8c9KgzgekH+7LSS1gKCD5enOuZZrJsUSyVUxSNs/2y+QGfBdeZ02D0FFqmAOLm+Alr6Id9eF+gZcDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T22:05:47.586279Z","bundle_sha256":"fc96971a0693db2f3f07936726d496f1258ba65e9208954270efe1806a6d6b8c"}}