{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:PDAWVU42Z4IKWOHKFK4WGSH2YY","short_pith_number":"pith:PDAWVU42","schema_version":"1.0","canonical_sha256":"78c16ad39acf10ab38ea2ab96348fac60ea749b9fc8f03c6f2801f9aceacdfb7","source":{"kind":"arxiv","id":"1205.3066","version":2},"attestation_state":"computed","paper":{"title":"Limits to the fraction of high-energy photon emitting gamma-ray bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Carl W. Akerlof, Weikang Zheng","submitted_at":"2012-05-14T15:49:12Z","abstract_excerpt":"After almost 4 years of operation, the two instruments onboard the Fermi Gamma-ray Space Telescope have shown that the number of gamma-ray bursts with high energy photon emission above 100 MeV cannot exceed roughly 9% of the total number of all such events, at least at the present detection limits. In a recent paper (Zheng et al. 2012c), we found that GRBs with photons detected in the Large Area Telescope (LAT) have a surprisingly broad distribution with respect to the photon number above background. Extrapolation of our empirical fit to numbers of photons below our quoted detection limit sugg"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1205.3066","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-05-14T15:49:12Z","cross_cats_sorted":[],"title_canon_sha256":"3c43f9a9ffb6431f0482134ea9bed5034b4b1abcf802face89f9deca1f68566b","abstract_canon_sha256":"53e85bde0d42ac47680432162e7c7fe7624c61e45a19877bce13e349b4208e5c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:32.498799Z","signature_b64":"OHQZg4keU2qGJK2tBiK42fkVPC+q96J80AyOdlpfzcDUzOH6qx4Y8v4jgu+9Z4DDKT3SegOZKQO5X3CKGAMGDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78c16ad39acf10ab38ea2ab96348fac60ea749b9fc8f03c6f2801f9aceacdfb7","last_reissued_at":"2026-05-18T01:57:32.498176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:32.498176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Limits to the fraction of high-energy photon emitting gamma-ray bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Carl W. Akerlof, Weikang Zheng","submitted_at":"2012-05-14T15:49:12Z","abstract_excerpt":"After almost 4 years of operation, the two instruments onboard the Fermi Gamma-ray Space Telescope have shown that the number of gamma-ray bursts with high energy photon emission above 100 MeV cannot exceed roughly 9% of the total number of all such events, at least at the present detection limits. In a recent paper (Zheng et al. 2012c), we found that GRBs with photons detected in the Large Area Telescope (LAT) have a surprisingly broad distribution with respect to the photon number above background. Extrapolation of our empirical fit to numbers of photons below our quoted detection limit sugg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3066","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1205.3066","created_at":"2026-05-18T01:57:32.498268+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.3066v2","created_at":"2026-05-18T01:57:32.498268+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3066","created_at":"2026-05-18T01:57:32.498268+00:00"},{"alias_kind":"pith_short_12","alias_value":"PDAWVU42Z4IK","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_16","alias_value":"PDAWVU42Z4IKWOHK","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_8","alias_value":"PDAWVU42","created_at":"2026-05-18T12:27:18.751474+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY","json":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY.json","graph_json":"https://pith.science/api/pith-number/PDAWVU42Z4IKWOHKFK4WGSH2YY/graph.json","events_json":"https://pith.science/api/pith-number/PDAWVU42Z4IKWOHKFK4WGSH2YY/events.json","paper":"https://pith.science/paper/PDAWVU42"},"agent_actions":{"view_html":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY","download_json":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY.json","view_paper":"https://pith.science/paper/PDAWVU42","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.3066&json=true","fetch_graph":"https://pith.science/api/pith-number/PDAWVU42Z4IKWOHKFK4WGSH2YY/graph.json","fetch_events":"https://pith.science/api/pith-number/PDAWVU42Z4IKWOHKFK4WGSH2YY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY/action/storage_attestation","attest_author":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY/action/author_attestation","sign_citation":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY/action/citation_signature","submit_replication":"https://pith.science/pith/PDAWVU42Z4IKWOHKFK4WGSH2YY/action/replication_record"}},"created_at":"2026-05-18T01:57:32.498268+00:00","updated_at":"2026-05-18T01:57:32.498268+00:00"}