{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:7XDMEH5WV3UHXUYRAZSFRWVPIW","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":"712656d0c2bc30fa399fe023ad04985d791bc988af6b415a23c04ce19a06dc2f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-23T19:51:43Z","title_canon_sha256":"7090a1ecc6456f1ffd2a149a86d7a0fc26769ea237a5dc99e7c054118011bc6e"},"schema_version":"1.0","source":{"id":"astro-ph/0210522","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0210522","created_at":"2026-07-04T15:26:22Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0210522v3","created_at":"2026-07-04T15:26:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0210522","created_at":"2026-07-04T15:26:22Z"},{"alias_kind":"pith_short_12","alias_value":"7XDMEH5WV3UH","created_at":"2026-07-04T15:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7XDMEH5WV3UHXUYR","created_at":"2026-07-04T15:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7XDMEH5W","created_at":"2026-07-04T15:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:d9d228dada2616115157abbca6c4648a1fbbfc4b4ff577480fc1a8add7a650a9","target":"graph","created_at":"2026-07-04T15:26:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0210522/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study three processes that shape the nuclear composition of GRB fireballs: (1) neutronization in the central engine, (2) nucleosynthesis in the fireball as it expands and cools, and (3) spallation of nuclei in subsequent internal shocks. The fireballs are found to have a neutron excess and a marginally successful nucleosynthesis. They are composed of free nucleons, alpha-particles, and deuterium. A robust result is the survival of a significant neutron component, which has important implications. First, as shown in previous works, neutrons can lead to observable multi-GeV neutrino emission.","authors_text":"Andrei M. Beloborodov (CITA)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-10-23T19:51:43Z","title":"Nuclear Composition of Gamma-Ray Burst Fireballs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0210522","kind":"arxiv","version":3},"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:a0ae9e54055d6210db74c87e93f9bb408e6ede0106bc7013b97ec779acbeb7a1","target":"record","created_at":"2026-07-04T15:26:22Z","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":"712656d0c2bc30fa399fe023ad04985d791bc988af6b415a23c04ce19a06dc2f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-23T19:51:43Z","title_canon_sha256":"7090a1ecc6456f1ffd2a149a86d7a0fc26769ea237a5dc99e7c054118011bc6e"},"schema_version":"1.0","source":{"id":"astro-ph/0210522","kind":"arxiv","version":3}},"canonical_sha256":"fdc6c21fb6aee87bd311066458daaf4596256a26a70909d5a00dcf27119e51ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdc6c21fb6aee87bd311066458daaf4596256a26a70909d5a00dcf27119e51ea","first_computed_at":"2026-07-04T15:26:22.282225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:26:22.282225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jr3CZjwZbPgQVits9kEStc+bKAQpHcW5y3B2NI+hwiU+yOgsoqffWn1myUQT36roQckcsIbC9xLWRWIfhtooBg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:26:22.282652Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0210522","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0ae9e54055d6210db74c87e93f9bb408e6ede0106bc7013b97ec779acbeb7a1","sha256:d9d228dada2616115157abbca6c4648a1fbbfc4b4ff577480fc1a8add7a650a9"],"state_sha256":"1eeaf77aa7e2c06f6280114b15d5d8cb173f918ca39a94d45bfe0173227f3040"}