{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:O4KLXA6WWWIF5LUNBTTZ42C7CD","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":"cf5bc94d871dfb529752ee47bf0642c351aba0a7c9a6e5120e5fb111725c780c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-09T23:26:31Z","title_canon_sha256":"a40902f1319a539cc7bda95bda2c61b875aee6d4623c949308db40616c5c96af"},"schema_version":"1.0","source":{"id":"0912.1884","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.1884","created_at":"2026-05-18T04:24:54Z"},{"alias_kind":"arxiv_version","alias_value":"0912.1884v1","created_at":"2026-05-18T04:24:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.1884","created_at":"2026-05-18T04:24:54Z"},{"alias_kind":"pith_short_12","alias_value":"O4KLXA6WWWIF","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"O4KLXA6WWWIF5LUN","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"O4KLXA6W","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:a5b5cfd43f497526fdbdae4409ff528f24d8534d8c4cda50c4924ae7e3766c4e","target":"graph","created_at":"2026-05-18T04:24:54Z","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":"In this work we numerically calculate the thermal radiation efficiency of the baryonic outflow. The possible outflow acceleration in the transparent stage, which lowers thermal radiation efficiency, has been taken into account. In the standard internal shock model for the prompt emission, the fast shells should move with a typical Lorentz factor $\\gtrsim 5 \\Gamma_{\\rm i}$ otherwise the GRB efficiency will be in disagreement with the observations, where $\\Gamma_{\\rm i}$ is the bulk Lorentz factor of the shocked/emitting region. The photosphere radius of these fast shells is small and the therma","authors_text":"Yi-Zhong Fan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-09T23:26:31Z","title":"The spectrum of Gamma-ray Burst: a clue"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.1884","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":"sha256:97c52245c72b0d8f9a1b96704419cb3a820d2b52040a2170e94d8e1de3bb1940","target":"record","created_at":"2026-05-18T04:24:54Z","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":"cf5bc94d871dfb529752ee47bf0642c351aba0a7c9a6e5120e5fb111725c780c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-09T23:26:31Z","title_canon_sha256":"a40902f1319a539cc7bda95bda2c61b875aee6d4623c949308db40616c5c96af"},"schema_version":"1.0","source":{"id":"0912.1884","kind":"arxiv","version":1}},"canonical_sha256":"7714bb83d6b5905eae8d0ce79e685f10e2d1c586b7845231f7130a54dd8de995","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7714bb83d6b5905eae8d0ce79e685f10e2d1c586b7845231f7130a54dd8de995","first_computed_at":"2026-05-18T04:24:54.844529Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:24:54.844529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c2nqEj6OSuE9JdUtEUAsbFJgR38BA4OgUhczoQ28YN1LpaqvrS1+eOCpi8HUwo6O2BsMZG01SRaI0TvZE0IgBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:24:54.845072Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.1884","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97c52245c72b0d8f9a1b96704419cb3a820d2b52040a2170e94d8e1de3bb1940","sha256:a5b5cfd43f497526fdbdae4409ff528f24d8534d8c4cda50c4924ae7e3766c4e"],"state_sha256":"b2f885835b551b657c14a1d497f20abf2d87257bc02917d7022c623772ba225e"}