{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1992:ZEVG65QV7DK6M6D6AQFIHWBTYV","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":"6220e3e379d26eeddd08fda1b8975488e42afcf904bda2ee0be033db5854b5a6","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-08-04T18:21:04Z","title_canon_sha256":"e4cf12cbbe9e60328e6127df2d6a188923f19461591515d6f903c92e35b9a790"},"schema_version":"1.0","source":{"id":"hep-ph/9208206","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9208206","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9208206v1","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9208206","created_at":"2026-05-18T04:37:56Z"},{"alias_kind":"pith_short_12","alias_value":"ZEVG65QV7DK6","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZEVG65QV7DK6M6D6","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZEVG65QV","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:081f31a2138cced95c2a7587dbf801e478a54c60e16e62ff5aa166115286f570","target":"graph","created_at":"2026-05-18T04:37:56Z","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":"Electromagnetic radiation from excited hadronic matter is one of the best ways to study the properties of the matter.\n  Considering various processes in the hadronic gas, Kapusta et al \\cite{Kapusta_photons} have found a $\\pi\\rho \\rightarrow \\pi\\gamma$ reaction with intermediate virtual pion or rho to be the main source of photons with energy greater than 0.7 GeV.\n  However, at temperatures considered T=100-200 MeV, a $\\pi\\rho$ pair can easily form an $A_1$(1260) resonance, and we show that this mechanism leads to the photon production rates exceeding those suggested previously. The paper is i","authors_text":"E. Shuryak, G. E. Brown, L. Xiong","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1992-08-04T18:21:04Z","title":"Photon production through $A_1$ resonance in high energy heavy ion collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9208206","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:ba2155f561d994e91eeb65925e9b3e10a7dec779f6b21db361b0582b1bd2aa8d","target":"record","created_at":"2026-05-18T04:37:56Z","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":"6220e3e379d26eeddd08fda1b8975488e42afcf904bda2ee0be033db5854b5a6","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1992-08-04T18:21:04Z","title_canon_sha256":"e4cf12cbbe9e60328e6127df2d6a188923f19461591515d6f903c92e35b9a790"},"schema_version":"1.0","source":{"id":"hep-ph/9208206","kind":"arxiv","version":1}},"canonical_sha256":"c92a6f7615f8d5e6787e040a83d833c566df7ee79806fcb8dab4ef129c4f48b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c92a6f7615f8d5e6787e040a83d833c566df7ee79806fcb8dab4ef129c4f48b1","first_computed_at":"2026-05-18T04:37:56.146147Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:37:56.146147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VbPDY3kzvnUXK7Xa4WH3yFagrQu0obo/gwygGEtjfgW0X1fp8OhLaGLpWrkSWr18URUWQkvpROqNg6TmioTNBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:37:56.146810Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9208206","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba2155f561d994e91eeb65925e9b3e10a7dec779f6b21db361b0582b1bd2aa8d","sha256:081f31a2138cced95c2a7587dbf801e478a54c60e16e62ff5aa166115286f570"],"state_sha256":"d0a109b6219358a812445b1e2c8a58807ab365e0da318e8125cba98c62b1f261"}