{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:LIGECCK55BVHWRIJVKJ2I65D7L","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":"f21b3e8495ec40deb3bf193648b2fec31aeefc184597e865b7aaf5623a1f1514","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-30T10:04:33Z","title_canon_sha256":"cbc361b6bd64c90760d118ed84b493157fbe00f93c2d4d7e5d67d78cefebec45"},"schema_version":"1.0","source":{"id":"1308.6698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.6698","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"arxiv_version","alias_value":"1308.6698v1","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.6698","created_at":"2026-05-18T03:13:33Z"},{"alias_kind":"pith_short_12","alias_value":"LIGECCK55BVH","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LIGECCK55BVHWRIJ","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LIGECCK5","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:ce1085815434b9a8210884614060f6c8851c2f0026ea41a5099fa34947c07a90","target":"graph","created_at":"2026-05-18T03:13:33Z","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"},"paper":{"abstract_excerpt":"We report on a bright flare in the Crab Nebula detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. The period of significantly increased luminosity occurred in 2013 March and lasted for approximately 2 weeks. During this period, we observed flux variability on timescales of approximately 5\\,hours. The combined photon flux above 100 MeV from the pulsar and its nebula reached a peak value of $(12.5\\pm 0.8)\\cdot 10^{-6}$\\,cm$^{-2}$\\,s$^{-1}$ on 2013 March 6. This value exceeds the average flux by almost a factor of 6 and implies a $\\sim20$ times higher flux fo","authors_text":"C. C. Cheung, E. Hays, J. E. Grove, M. Dutka, M. Kerr, M. Mayer, M. S. Dutka, R. Buehler, R. Ojha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-30T10:04:33Z","title":"Rapid Gamma-ray flux variability during the 2013 March Crab Nebula flare"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.6698","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:b8b577d3511315664d441fca0a481e5707dc604e6fc348e0b0da414f77bcd8b8","target":"record","created_at":"2026-05-18T03:13:33Z","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":"f21b3e8495ec40deb3bf193648b2fec31aeefc184597e865b7aaf5623a1f1514","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-30T10:04:33Z","title_canon_sha256":"cbc361b6bd64c90760d118ed84b493157fbe00f93c2d4d7e5d67d78cefebec45"},"schema_version":"1.0","source":{"id":"1308.6698","kind":"arxiv","version":1}},"canonical_sha256":"5a0c41095de86a7b4509aa93a47ba3fae98ad383a0b1e671c94b122cc611b2ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a0c41095de86a7b4509aa93a47ba3fae98ad383a0b1e671c94b122cc611b2ce","first_computed_at":"2026-05-18T03:13:33.397792Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:33.397792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RPhveabiXOVsZ6MBailZdfa0+Idofzs9HQ9E6GjnV1g3otgObXv1eblEFiM8nr6T8MPB2RjLdLEvV4V1EpLeBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:33.398338Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.6698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8b577d3511315664d441fca0a481e5707dc604e6fc348e0b0da414f77bcd8b8","sha256:ce1085815434b9a8210884614060f6c8851c2f0026ea41a5099fa34947c07a90"],"state_sha256":"f1f476a1a7854d7b3b9ba4003ef654158767e774d209086ceda4984eba38312b"}