{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:LOTFVBW7ZJATHCTI3XAY2YSTOZ","short_pith_number":"pith:LOTFVBW7","schema_version":"1.0","canonical_sha256":"5ba65a86dfca41338a68ddc18d62537669a245e7530b00216373b394353c2bc0","source":{"kind":"arxiv","id":"1906.01318","version":1},"attestation_state":"computed","paper":{"title":"Non-dissipative photospheres in GRBs: Spectral appearance in the Fermi/GBM catalogue","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Felix Ryde, Hoi-Fung Yu, Zeynep Acuner","submitted_at":"2019-06-04T10:19:12Z","abstract_excerpt":"A large fraction of gamma-ray burst (GRB) spectra are very hard below the peak. Indeed, the observed distribution of sub-peak power-law indices, $\\alpha$, has been used as an argument for a photospheric origin of GRB spectra. Here, we investigate what fraction of GRBs have spectra that are consistent with emission from a photopshere in a non-dissipative outflow. This is the simplest possible photospheric emission scenario. We create synthetic spectra, with a range of peak energies, by folding the theoretical predictions through the detector response of the FERMI/GBM detector. These simulated s"},"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":"1906.01318","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-06-04T10:19:12Z","cross_cats_sorted":[],"title_canon_sha256":"9c8638bf7cbcea3ff122717739958224b33dc0ebc5b2b2a1538f821fb8391017","abstract_canon_sha256":"a4cbafcafb89684ab7385c091f19c562ef805aaa84ddef00ed4d5922e1dc3259"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:34.009528Z","signature_b64":"jRNTaqnV4eFf9Z8RPj27pwkMER2OoWF7SMhg2pqqPzqm6F4jbNjgL3u0oao1DLdcGwsUZf350JKW+a6OZkC9Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ba65a86dfca41338a68ddc18d62537669a245e7530b00216373b394353c2bc0","last_reissued_at":"2026-05-17T23:43:34.009030Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:34.009030Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-dissipative photospheres in GRBs: Spectral appearance in the Fermi/GBM catalogue","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Felix Ryde, Hoi-Fung Yu, Zeynep Acuner","submitted_at":"2019-06-04T10:19:12Z","abstract_excerpt":"A large fraction of gamma-ray burst (GRB) spectra are very hard below the peak. Indeed, the observed distribution of sub-peak power-law indices, $\\alpha$, has been used as an argument for a photospheric origin of GRB spectra. Here, we investigate what fraction of GRBs have spectra that are consistent with emission from a photopshere in a non-dissipative outflow. This is the simplest possible photospheric emission scenario. We create synthetic spectra, with a range of peak energies, by folding the theoretical predictions through the detector response of the FERMI/GBM detector. These simulated s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.01318","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":""},"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":"1906.01318","created_at":"2026-05-17T23:43:34.009105+00:00"},{"alias_kind":"arxiv_version","alias_value":"1906.01318v1","created_at":"2026-05-17T23:43:34.009105+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.01318","created_at":"2026-05-17T23:43:34.009105+00:00"},{"alias_kind":"pith_short_12","alias_value":"LOTFVBW7ZJAT","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"LOTFVBW7ZJATHCTI","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"LOTFVBW7","created_at":"2026-05-18T12:33:21.387695+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/LOTFVBW7ZJATHCTI3XAY2YSTOZ","json":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ.json","graph_json":"https://pith.science/api/pith-number/LOTFVBW7ZJATHCTI3XAY2YSTOZ/graph.json","events_json":"https://pith.science/api/pith-number/LOTFVBW7ZJATHCTI3XAY2YSTOZ/events.json","paper":"https://pith.science/paper/LOTFVBW7"},"agent_actions":{"view_html":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ","download_json":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ.json","view_paper":"https://pith.science/paper/LOTFVBW7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1906.01318&json=true","fetch_graph":"https://pith.science/api/pith-number/LOTFVBW7ZJATHCTI3XAY2YSTOZ/graph.json","fetch_events":"https://pith.science/api/pith-number/LOTFVBW7ZJATHCTI3XAY2YSTOZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ/action/storage_attestation","attest_author":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ/action/author_attestation","sign_citation":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ/action/citation_signature","submit_replication":"https://pith.science/pith/LOTFVBW7ZJATHCTI3XAY2YSTOZ/action/replication_record"}},"created_at":"2026-05-17T23:43:34.009105+00:00","updated_at":"2026-05-17T23:43:34.009105+00:00"}