{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DYKAH26ARGUUBBCOSMZVBVVZHG","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":"f9cd1b61771ecbd86d3f09eb9bfacc4b7f9037ccbcb7f340c756d5f3af8804aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-18T18:00:59Z","title_canon_sha256":"7d6f9644cfa52518d301879e461e137e2e4b51d5a0fc0d9f0479139c45f7e0cd"},"schema_version":"1.0","source":{"id":"2605.18973","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18973","created_at":"2026-05-20T00:06:40Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18973v1","created_at":"2026-05-20T00:06:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18973","created_at":"2026-05-20T00:06:40Z"},{"alias_kind":"pith_short_12","alias_value":"DYKAH26ARGUU","created_at":"2026-05-20T00:06:40Z"},{"alias_kind":"pith_short_16","alias_value":"DYKAH26ARGUUBBCO","created_at":"2026-05-20T00:06:40Z"},{"alias_kind":"pith_short_8","alias_value":"DYKAH26A","created_at":"2026-05-20T00:06:40Z"}],"graph_snapshots":[{"event_id":"sha256:92579f333e20d56585fffe1009959783aa7d041b885705c3bf166f278a628bd5","target":"graph","created_at":"2026-05-20T00:06:40Z","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/2605.18973/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The association of broad-lined Type Ic supernovae with long-duration gamma-ray bursts (GRBs) has been known for 28 years. However, only about seventy gamma-ray burst supernovae (GRB-SNe) have been identified, of which only half have spectroscopic classifications. At $z=0.153$, GRB 260310A is the 12th spectroscopically confirmed GRB-SN discovered within 1 Gpc, offering a critical opportunity to follow one of these rare supernovae in detail. We present optical to near-infrared imaging and spectroscopy of GRB 260310A and SN 2026fgk out to 65 d after discovery. The optical afterglow is among the b","authors_text":"Adam Myers, Antonella Palmese, Ariel J. Amsellem, Brendan O'Connor, Christoph Ries, Daniel Gruen, David Schlegel, Dylan Green, Eleonora Troja, Hendrik van Eerten, John Banovetz, Julius Gassert, Keerthi Kunnumkai, Kenta Taguchi, Malte Busmann, Masaomi Tanaka, Michael Schmidt, Mitra Maleki, Muskan Yadav, Segev Benzvi, Seiji Toshikage, Silona Wilke, Steven Bailey, Tomas Cabrera, Xander J. Hall, Yu-Han Yang, Ziyuan Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-18T18:00:59Z","title":"GRB 260310A/SN 2026fgk: Photometric and Spectroscopic Evolution of a Nearby GRB-Supernova and an Exceptionally Bright Afterglow at z=0.153"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18973","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:cffb9361ea16a1ad2e187eb9237255ab0b8df73cd5057db2496ec34f66b6d04f","target":"record","created_at":"2026-05-20T00:06:40Z","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":"f9cd1b61771ecbd86d3f09eb9bfacc4b7f9037ccbcb7f340c756d5f3af8804aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-18T18:00:59Z","title_canon_sha256":"7d6f9644cfa52518d301879e461e137e2e4b51d5a0fc0d9f0479139c45f7e0cd"},"schema_version":"1.0","source":{"id":"2605.18973","kind":"arxiv","version":1}},"canonical_sha256":"1e1403ebc089a940844e933350d6b939b286712a5c70b0252055c3432fdda456","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e1403ebc089a940844e933350d6b939b286712a5c70b0252055c3432fdda456","first_computed_at":"2026-05-20T00:06:40.280998Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:06:40.280998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oCkn3LrC3me4TaXMhMx1y0S4+zoynailaxYfw06REGI8Xg9wGU2Xv8d80lpAEkvTezildb4S/cN/l1Ug0sBODw==","signature_status":"signed_v1","signed_at":"2026-05-20T00:06:40.281869Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.18973","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cffb9361ea16a1ad2e187eb9237255ab0b8df73cd5057db2496ec34f66b6d04f","sha256:92579f333e20d56585fffe1009959783aa7d041b885705c3bf166f278a628bd5"],"state_sha256":"adc035e79d5021ca55b47be6b8d1c0f5fc6cf68c6426f6e028ef07bab34446c6"}