{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OFSEXFW6OAL3TATKQHYF57DLBK","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":"2a4bab3cb22965af25ebe914d7efda6517052f50163e71e84797cb8d2cb70930","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-14T18:16:11Z","title_canon_sha256":"93db13b14be375dde7ab312f3f04c7e2895f7197e3c3050e41dbd7aa32eaffd5"},"schema_version":"1.0","source":{"id":"1308.3197","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.3197","created_at":"2026-05-18T01:48:15Z"},{"alias_kind":"arxiv_version","alias_value":"1308.3197v2","created_at":"2026-05-18T01:48:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.3197","created_at":"2026-05-18T01:48:15Z"},{"alias_kind":"pith_short_12","alias_value":"OFSEXFW6OAL3","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OFSEXFW6OAL3TATK","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OFSEXFW6","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:19be12389825846d11213013c325f80a50e374254b93412f5ef4e113468c78b5","target":"graph","created_at":"2026-05-18T01:48:15Z","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 investigate the effect that the absorption of high-energy (above 100 MeV) photons produced in GRB afterglow shocks has on the light-curves and spectra of Fermi-LAT afterglows. Afterglows produced by the interaction of a relativistic outflow with a wind-like medium peak when the blast-wave deceleration sets in, and the afterglow spectrum could be hardening before that peak, as the optical thickness to pair-formation is decreasing. In contrast, in afterglows produced in the interaction with a homogeneous medium, the optical thickness to pair-formation should increase and yield a light-curve p","authors_text":"A. Panaitescu, P. Wozniak, W.T. Vestrand","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-14T18:16:11Z","title":"\"Self-absorbed\" GeV light-curves of Gamma-Ray Burst afterglows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.3197","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":"sha256:12fe9e5c03499a39716adc65592caeb815cca284ff51ed5c565ca2b3b2a74e7f","target":"record","created_at":"2026-05-18T01:48:15Z","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":"2a4bab3cb22965af25ebe914d7efda6517052f50163e71e84797cb8d2cb70930","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-08-14T18:16:11Z","title_canon_sha256":"93db13b14be375dde7ab312f3f04c7e2895f7197e3c3050e41dbd7aa32eaffd5"},"schema_version":"1.0","source":{"id":"1308.3197","kind":"arxiv","version":2}},"canonical_sha256":"71644b96de7017b9826a81f05efc6b0aab45618ab68da2540ed2b78d1fc15323","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71644b96de7017b9826a81f05efc6b0aab45618ab68da2540ed2b78d1fc15323","first_computed_at":"2026-05-18T01:48:15.493008Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:15.493008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"br1Qh+dxIxf5uxArq+1C51R2zL3yzMvZEG04sSDBu6rJckTJbTceC1YgAYVY3L6ALgSY3PZrpIeDLKYtgS/CBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:15.493462Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.3197","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12fe9e5c03499a39716adc65592caeb815cca284ff51ed5c565ca2b3b2a74e7f","sha256:19be12389825846d11213013c325f80a50e374254b93412f5ef4e113468c78b5"],"state_sha256":"b522c54e99597f2d635c76d42f99ece4827294e9ed9cd43c6676010e2ebe1146"}