{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:GJY4IMV6FMNKAVD3CZVFLEYTOU","short_pith_number":"pith:GJY4IMV6","canonical_record":{"source":{"id":"2007.04998","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-07-09T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"b92a8f36d84180f13def1fe4babb1f78ea95488323a42b6cbcad7db012b61f4a","abstract_canon_sha256":"474473369e64295a6a3193be9ec354e881b88b2813b906d547fef0a42ff2fbc4"},"schema_version":"1.0"},"canonical_sha256":"3271c432be2b1aa0547b166a5593137526ee8afd8e148087c2484b360772e115","source":{"kind":"arxiv","id":"2007.04998","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.04998","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"arxiv_version","alias_value":"2007.04998v3","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.04998","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_12","alias_value":"GJY4IMV6FMNK","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_16","alias_value":"GJY4IMV6FMNKAVD3","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_8","alias_value":"GJY4IMV6","created_at":"2026-07-05T01:50:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:GJY4IMV6FMNKAVD3CZVFLEYTOU","target":"record","payload":{"canonical_record":{"source":{"id":"2007.04998","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-07-09T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"b92a8f36d84180f13def1fe4babb1f78ea95488323a42b6cbcad7db012b61f4a","abstract_canon_sha256":"474473369e64295a6a3193be9ec354e881b88b2813b906d547fef0a42ff2fbc4"},"schema_version":"1.0"},"canonical_sha256":"3271c432be2b1aa0547b166a5593137526ee8afd8e148087c2484b360772e115","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:50:26.246161Z","signature_b64":"teIdY7Yj+fXEyUKMXNlwloutm+q1CnFy3PfnL5i/VZEeKV3peRSFA9dIyEml5YmHnaw6WW9BTLtRaWX4ThK5CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3271c432be2b1aa0547b166a5593137526ee8afd8e148087c2484b360772e115","last_reissued_at":"2026-07-05T01:50:26.245699Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:50:26.245699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.04998","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:50:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NghZmRgCIpnIE2yRF3QGxmElORgRjY+WT0bianUSJuDf4zim7rQZ6ylGWDLc11v2mPdDNYpAOuBsHcK+1i6yAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:13:31.654079Z"},"content_sha256":"6e15230fe867c16897e922bed51247fc31ce1951fc0f5bb821895c7954161467","schema_version":"1.0","event_id":"sha256:6e15230fe867c16897e922bed51247fc31ce1951fc0f5bb821895c7954161467"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:GJY4IMV6FMNKAVD3CZVFLEYTOU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A search for optical and near-infrared counterparts of the compact binary merger GW190814","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. L. Hungerford, A. L. Thakur, A. M. Watson, Antonino D'A\\`i, A. S. Kutyrev, A. Tiengo, C. J. Fontes, C. L. Fryer, E. A. Chase, E. Ambrosi, E. Troja, G. Bruni, G. Cusumano, G. Minervini, G. Novara, J. Becerra Gonz\\'alez, J. Durbak, L. Piro, M. Pereyra, N. R. Butler, O. Korobkin, P. Gatkine, R. L. Becerra, R. Ricci, R. Sanchez-Ramirez, R. T. Wollaeger, S. B. Cenko, S. Dichiara, S. Lotti, S. Veilleux, V. La Parola, W. H. Lee","submitted_at":"2020-07-09T18:00:02Z","abstract_excerpt":"We report on our observing campaign of the compact binary merger GW190814, detected by the Advanced LIGO and Advanced Virgo detectors on August 14th, 2019. This signal has the best localisation of any observed gravitational wave (GW) source, with a 90% probability area of 18.5 deg$^2$, and an estimated distance of ~ 240 Mpc. We obtained wide-field observations with the Deca-Degree Optical Transient Imager (DDOTI) covering 88% of the probability area down to a limiting magnitude of $w$ = 19.9 AB. Nearby galaxies within the high probability region were targeted with the Lowell Discovery Telescop"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.04998","kind":"arxiv","version":3},"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/2007.04998/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":"2026-07-05T01:50:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nrJKYgSY8usr46Xiv1S1vmG7+3ABQg78CBQHtj76Gu7w0UaA3oSeFaMCniL3A1NKARSSUsuQk/3o0LW60gFODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:13:31.655819Z"},"content_sha256":"8d1a528a9d9df54acc7d8b7595d8609d4c56f1fe27fd29784bc178020756f9d4","schema_version":"1.0","event_id":"sha256:8d1a528a9d9df54acc7d8b7595d8609d4c56f1fe27fd29784bc178020756f9d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/bundle.json","state_url":"https://pith.science/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/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":"2026-08-03T16:13:31Z","links":{"resolver":"https://pith.science/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU","bundle":"https://pith.science/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/bundle.json","state":"https://pith.science/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GJY4IMV6FMNKAVD3CZVFLEYTOU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GJY4IMV6FMNKAVD3CZVFLEYTOU","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":"474473369e64295a6a3193be9ec354e881b88b2813b906d547fef0a42ff2fbc4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-07-09T18:00:02Z","title_canon_sha256":"b92a8f36d84180f13def1fe4babb1f78ea95488323a42b6cbcad7db012b61f4a"},"schema_version":"1.0","source":{"id":"2007.04998","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.04998","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"arxiv_version","alias_value":"2007.04998v3","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.04998","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_12","alias_value":"GJY4IMV6FMNK","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_16","alias_value":"GJY4IMV6FMNKAVD3","created_at":"2026-07-05T01:50:26Z"},{"alias_kind":"pith_short_8","alias_value":"GJY4IMV6","created_at":"2026-07-05T01:50:26Z"}],"graph_snapshots":[{"event_id":"sha256:8d1a528a9d9df54acc7d8b7595d8609d4c56f1fe27fd29784bc178020756f9d4","target":"graph","created_at":"2026-07-05T01:50:26Z","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/2007.04998/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on our observing campaign of the compact binary merger GW190814, detected by the Advanced LIGO and Advanced Virgo detectors on August 14th, 2019. This signal has the best localisation of any observed gravitational wave (GW) source, with a 90% probability area of 18.5 deg$^2$, and an estimated distance of ~ 240 Mpc. We obtained wide-field observations with the Deca-Degree Optical Transient Imager (DDOTI) covering 88% of the probability area down to a limiting magnitude of $w$ = 19.9 AB. Nearby galaxies within the high probability region were targeted with the Lowell Discovery Telescop","authors_text":"A. L. Hungerford, A. L. Thakur, A. M. Watson, Antonino D'A\\`i, A. S. Kutyrev, A. Tiengo, C. J. Fontes, C. L. Fryer, E. A. Chase, E. Ambrosi, E. Troja, G. Bruni, G. Cusumano, G. Minervini, G. Novara, J. Becerra Gonz\\'alez, J. Durbak, L. Piro, M. Pereyra, N. R. Butler, O. Korobkin, P. Gatkine, R. L. Becerra, R. Ricci, R. Sanchez-Ramirez, R. T. Wollaeger, S. B. Cenko, S. Dichiara, S. Lotti, S. Veilleux, V. La Parola, W. H. Lee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-07-09T18:00:02Z","title":"A search for optical and near-infrared counterparts of the compact binary merger GW190814"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.04998","kind":"arxiv","version":3},"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":"sha256:6e15230fe867c16897e922bed51247fc31ce1951fc0f5bb821895c7954161467","target":"record","created_at":"2026-07-05T01:50:26Z","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":"474473369e64295a6a3193be9ec354e881b88b2813b906d547fef0a42ff2fbc4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-07-09T18:00:02Z","title_canon_sha256":"b92a8f36d84180f13def1fe4babb1f78ea95488323a42b6cbcad7db012b61f4a"},"schema_version":"1.0","source":{"id":"2007.04998","kind":"arxiv","version":3}},"canonical_sha256":"3271c432be2b1aa0547b166a5593137526ee8afd8e148087c2484b360772e115","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3271c432be2b1aa0547b166a5593137526ee8afd8e148087c2484b360772e115","first_computed_at":"2026-07-05T01:50:26.245699Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:50:26.245699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"teIdY7Yj+fXEyUKMXNlwloutm+q1CnFy3PfnL5i/VZEeKV3peRSFA9dIyEml5YmHnaw6WW9BTLtRaWX4ThK5CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:50:26.246161Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.04998","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e15230fe867c16897e922bed51247fc31ce1951fc0f5bb821895c7954161467","sha256:8d1a528a9d9df54acc7d8b7595d8609d4c56f1fe27fd29784bc178020756f9d4"],"state_sha256":"54b9fd57f47bbf607470219415373b167885d0af169fd8909ca390292f3d54fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zRBw0JTwm9kv7oH8NxC92LqLoia4jklkgAD+9Rp2rbxB7+2baVTVRio/51/K5qle/oSr7GFA2WUIw8cvBPSGAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:13:31.668324Z","bundle_sha256":"3f4e91befe0f0472582b161e8912bbd2c643cbd412ae4fdde0f6c7140d2a6ddd"}}