{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:XL2HKAWY2TLYT6GMHFLZFZEDCO","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":"4fa47066e724685384ad021c190088b8fe291a7405e694b05deca094a55425ad","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-09-14T12:32:43Z","title_canon_sha256":"764094cd6b16f075f04e32bb900a77f39f9fe5a4d05f8a95126eaf419c5c96ff"},"schema_version":"1.0","source":{"id":"1009.2636","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.2636","created_at":"2026-05-18T02:05:30Z"},{"alias_kind":"arxiv_version","alias_value":"1009.2636v2","created_at":"2026-05-18T02:05:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.2636","created_at":"2026-05-18T02:05:30Z"},{"alias_kind":"pith_short_12","alias_value":"XL2HKAWY2TLY","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XL2HKAWY2TLYT6GM","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XL2HKAWY","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:1d28ad756edbc6bf51fb76f114f4cec82535429ca93f396106c5ab7e6ebf6703","target":"graph","created_at":"2026-05-18T02:05:30Z","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":"(abridged)Prompt GRB emission is often interpreted as synchrotron radiation from high-energy electrons accelerated in internal shocks. Fast synchrotron cooling predicts that the photon index below the spectral peak is alpha=-3/2. This differs significantly from the observed median value alpha \\approx -1. We quantify the influence of inverse Compton and adiabatic cooling on alpha to understand whether these processes can reconcile the observations with a synchrotron origin. We use a time-dependent code that follows both the shock dynamics and electron energy losses. We investigate the dependenc","authors_text":"1), 1) ((1) Institut d'Astrophysique de Paris, (2) AIM (UMR 7158 CEA/DSM-CNRS-Universit\\'e Paris Diderot) Irfu/Service d'Astrophysique, (3) Laboratoire d'Astrophysique de Grenoble, F. Daigne (1), Guillaume Dubus (3, UMR 5571 Universit\\'e Joseph Fourier-CNRS), UMR 7095 Universit\\'e Pierre et Marie Curie - CNRS, Z. Bosnjak (2","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-09-14T12:32:43Z","title":"Reconciling observed GRB prompt spectra with synchrotron radiation ?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.2636","kind":"arxiv","version":2},"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":"sha256:3df24bf771e589bf3e9dffb8b58752c8e3a43f121f24d57d6b62c84f4ae81ef6","target":"record","created_at":"2026-05-18T02:05:30Z","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":"4fa47066e724685384ad021c190088b8fe291a7405e694b05deca094a55425ad","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-09-14T12:32:43Z","title_canon_sha256":"764094cd6b16f075f04e32bb900a77f39f9fe5a4d05f8a95126eaf419c5c96ff"},"schema_version":"1.0","source":{"id":"1009.2636","kind":"arxiv","version":2}},"canonical_sha256":"baf47502d8d4d789f8cc395792e4831391093396fb7fc58ffa8cd0e967f5d4e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"baf47502d8d4d789f8cc395792e4831391093396fb7fc58ffa8cd0e967f5d4e6","first_computed_at":"2026-05-18T02:05:30.732993Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:30.732993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Np5d2UNfjKMk+1WTPfiFzOUF3MRZvVB/j6sJMCg6D5ODZoTchDgVUj+6If6eUkZUpEVdZh3MObATKkvPB9bTBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:30.733545Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.2636","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3df24bf771e589bf3e9dffb8b58752c8e3a43f121f24d57d6b62c84f4ae81ef6","sha256:1d28ad756edbc6bf51fb76f114f4cec82535429ca93f396106c5ab7e6ebf6703"],"state_sha256":"5423f26abb027f4d62744a865a05f57382adc1ced9f32b19b5fd1180bac69e46"}