{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:JHYDLQYCF7U2D2IKZAT5SBJ27I","short_pith_number":"pith:JHYDLQYC","canonical_record":{"source":{"id":"2203.11787","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-03-22T14:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"cf0241b26026af361acaf037a758e0aaba54cbd82f8c3ed85c01a2f6b85bdd3e","abstract_canon_sha256":"bccc2803bf5462125dfb945604b84c2f0d022ca31930724db2e661280b0f522e"},"schema_version":"1.0"},"canonical_sha256":"49f035c3022fe9a1e90ac827d9053afa12189ec1778513289852e19349b40a47","source":{"kind":"arxiv","id":"2203.11787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11787","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11787v1","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11787","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_12","alias_value":"JHYDLQYCF7U2","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"JHYDLQYCF7U2D2IK","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"JHYDLQYC","created_at":"2026-07-05T04:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:JHYDLQYCF7U2D2IKZAT5SBJ27I","target":"record","payload":{"canonical_record":{"source":{"id":"2203.11787","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-03-22T14:47:17Z","cross_cats_sorted":[],"title_canon_sha256":"cf0241b26026af361acaf037a758e0aaba54cbd82f8c3ed85c01a2f6b85bdd3e","abstract_canon_sha256":"bccc2803bf5462125dfb945604b84c2f0d022ca31930724db2e661280b0f522e"},"schema_version":"1.0"},"canonical_sha256":"49f035c3022fe9a1e90ac827d9053afa12189ec1778513289852e19349b40a47","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:33.565390Z","signature_b64":"Z1waavdR2T629BTxNA04Ta4fOh2U4klotdSNqNKbguszbYzIVZKgfIs7dYkhuz0a1uOa/QnvVLQaC1GBtQyqAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49f035c3022fe9a1e90ac827d9053afa12189ec1778513289852e19349b40a47","last_reissued_at":"2026-07-05T04:33:33.564893Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:33.564893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.11787","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":"2026-07-05T04:33:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T/7olqsLY+dSismgFyLOslfQG2sqJ3MmtAPA4qLj1Cu++WBZCrA3Jxsx7yM03lnHj/fFUPV5EEInUNLA0o4rCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T12:40:01.347220Z"},"content_sha256":"8857cfee125e57da22c83052ee7fef2520bc6b4994ddbe3b88279328ee31f261","schema_version":"1.0","event_id":"sha256:8857cfee125e57da22c83052ee7fef2520bc6b4994ddbe3b88279328ee31f261"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:JHYDLQYCF7U2D2IKZAT5SBJ27I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In search of short gamma-ray burst optical counterpart with the Zwicky Transient Facility","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Albert K. H. Kong, Ana Sagu\\'es-Carracedo, Anna Y. Q. Ho, Ashish A. Mahabal, Bagrat Mailyan, Ben Rusholme, Christian Malacaria, Christoffer Fremling, Corinne Fletcher, Daniel Perley, David L. Kaplan, Elisabetta Bissaldi, Eric Burns, Eric C. Bellm, Erik C. Kool, G.C. Anupama, Harsh Kumar, Igor Andreoni, Jesper Sollerman, Joseph Mangan, Joshua S. Bloom, Kishalay De, Leo P. Singer, Mansi M. Kasliwal, Matthew J. Graham, Mattia Bulla, Michael W. Coughlin, Mouza Almualla, Oliver Roberts, Philippe Rosnet, Pradip Gatkine, Rachel Dunwoody, Rachel Hamburg, Reed L. Riddle, Robert Stein, Roger Smith, Russ R. Laher, Ryosuke Itoh, S. Bradley Cenko, Shaon Ghosh, Sheila McBreen, Shreya Anand, Simeon Reusch, Sudhanshu Barway, Tom\\'as Ahumada, Varun Bhalerao, Viraj Karambelkar, Virginia Cunningham, Yuhan Yao","submitted_at":"2022-03-22T14:47:17Z","abstract_excerpt":"The Fermi Gamma-ray Burst Monitor (GBM) triggers on-board in response to $\\sim$ 40 short gamma-ray bursts (SGRBs) per year; however, their large localization regions have made the search for optical counterparts a challenging endeavour. We have developed and executed an extensive program with the wide field of view of the Zwicky Transient Facility (ZTF) camera, mounted on the Palomar 48 inch Oschin telescope (P48), to perform target-of-opportunity (ToO) observations on 10 Fermi-GBM SGRBs during 2018 and 2020-2021. Bridging the large sky areas with small field of view optical telescopes in orde"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11787","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/2203.11787/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":"2026-07-05T04:33:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"naYEhyvKu2Jcc5QF7zJqk73TahuAcNpQBF6P6ZBs589/jqQK8MFfq5+GEWw3B8Y6V/Py7rsR6uXb/nCH/13KAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T12:40:01.347867Z"},"content_sha256":"93ff7aa91653d8ccd3bc1129be5ce5b531b8476f308be77c4f81085674d6543a","schema_version":"1.0","event_id":"sha256:93ff7aa91653d8ccd3bc1129be5ce5b531b8476f308be77c4f81085674d6543a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/bundle.json","state_url":"https://pith.science/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/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":"2026-08-17T12:40:01Z","links":{"resolver":"https://pith.science/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I","bundle":"https://pith.science/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/bundle.json","state":"https://pith.science/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JHYDLQYCF7U2D2IKZAT5SBJ27I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:JHYDLQYCF7U2D2IKZAT5SBJ27I","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":"bccc2803bf5462125dfb945604b84c2f0d022ca31930724db2e661280b0f522e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-03-22T14:47:17Z","title_canon_sha256":"cf0241b26026af361acaf037a758e0aaba54cbd82f8c3ed85c01a2f6b85bdd3e"},"schema_version":"1.0","source":{"id":"2203.11787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11787","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11787v1","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11787","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_12","alias_value":"JHYDLQYCF7U2","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"JHYDLQYCF7U2D2IK","created_at":"2026-07-05T04:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"JHYDLQYC","created_at":"2026-07-05T04:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:93ff7aa91653d8ccd3bc1129be5ce5b531b8476f308be77c4f81085674d6543a","target":"graph","created_at":"2026-07-05T04:33:33Z","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/2203.11787/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Fermi Gamma-ray Burst Monitor (GBM) triggers on-board in response to $\\sim$ 40 short gamma-ray bursts (SGRBs) per year; however, their large localization regions have made the search for optical counterparts a challenging endeavour. We have developed and executed an extensive program with the wide field of view of the Zwicky Transient Facility (ZTF) camera, mounted on the Palomar 48 inch Oschin telescope (P48), to perform target-of-opportunity (ToO) observations on 10 Fermi-GBM SGRBs during 2018 and 2020-2021. Bridging the large sky areas with small field of view optical telescopes in orde","authors_text":"Albert K. H. Kong, Ana Sagu\\'es-Carracedo, Anna Y. Q. Ho, Ashish A. Mahabal, Bagrat Mailyan, Ben Rusholme, Christian Malacaria, Christoffer Fremling, Corinne Fletcher, Daniel Perley, David L. Kaplan, Elisabetta Bissaldi, Eric Burns, Eric C. Bellm, Erik C. Kool, G.C. Anupama, Harsh Kumar, Igor Andreoni, Jesper Sollerman, Joseph Mangan, Joshua S. Bloom, Kishalay De, Leo P. Singer, Mansi M. Kasliwal, Matthew J. Graham, Mattia Bulla, Michael W. Coughlin, Mouza Almualla, Oliver Roberts, Philippe Rosnet, Pradip Gatkine, Rachel Dunwoody, Rachel Hamburg, Reed L. Riddle, Robert Stein, Roger Smith, Russ R. Laher, Ryosuke Itoh, S. Bradley Cenko, Shaon Ghosh, Sheila McBreen, Shreya Anand, Simeon Reusch, Sudhanshu Barway, Tom\\'as Ahumada, Varun Bhalerao, Viraj Karambelkar, Virginia Cunningham, Yuhan Yao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-03-22T14:47:17Z","title":"In search of short gamma-ray burst optical counterpart with the Zwicky Transient Facility"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11787","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":"sha256:8857cfee125e57da22c83052ee7fef2520bc6b4994ddbe3b88279328ee31f261","target":"record","created_at":"2026-07-05T04:33:33Z","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":"bccc2803bf5462125dfb945604b84c2f0d022ca31930724db2e661280b0f522e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-03-22T14:47:17Z","title_canon_sha256":"cf0241b26026af361acaf037a758e0aaba54cbd82f8c3ed85c01a2f6b85bdd3e"},"schema_version":"1.0","source":{"id":"2203.11787","kind":"arxiv","version":1}},"canonical_sha256":"49f035c3022fe9a1e90ac827d9053afa12189ec1778513289852e19349b40a47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49f035c3022fe9a1e90ac827d9053afa12189ec1778513289852e19349b40a47","first_computed_at":"2026-07-05T04:33:33.564893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:33.564893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z1waavdR2T629BTxNA04Ta4fOh2U4klotdSNqNKbguszbYzIVZKgfIs7dYkhuz0a1uOa/QnvVLQaC1GBtQyqAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:33.565390Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.11787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8857cfee125e57da22c83052ee7fef2520bc6b4994ddbe3b88279328ee31f261","sha256:93ff7aa91653d8ccd3bc1129be5ce5b531b8476f308be77c4f81085674d6543a"],"state_sha256":"657ffcf3b1a8942485bdabe575b4f9ea1b4d0560562607885ced0469ee9e4088"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GFqoMvIAVfCe86Wq27LLUf89Cz8+FmPNahBHimGvX659mN2GCyRVhOLaJmBMPkKMZ/eM7GQSK+uNM3klGoleCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T12:40:01.362661Z","bundle_sha256":"8ac89867e518c3a57fd49abc2d4117a5dd977c7c2a1cf8a79bad67ef88694786"}}