{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:JZEIIKX4YODOZQHEUEWIRJBFXK","short_pith_number":"pith:JZEIIKX4","canonical_record":{"source":{"id":"nucl-th/0604031","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2006-04-13T16:17:47Z","cross_cats_sorted":[],"title_canon_sha256":"a4c5c5d64c4dcaa190e2fb424ac58453187f3274a6c7e2167364081c192f3b38","abstract_canon_sha256":"6f3a85249fe9b786ea0833fa90a0c0baa5bbdc2891efe0ad72bb591d8eac6fe0"},"schema_version":"1.0"},"canonical_sha256":"4e48842afcc386ecc0e4a12c88a425baa584d119bd4c9f6c0e87fa6aa7bb14bd","source":{"kind":"arxiv","id":"nucl-th/0604031","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0604031","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0604031v3","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0604031","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_12","alias_value":"JZEIIKX4YODO","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_16","alias_value":"JZEIIKX4YODOZQHE","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_8","alias_value":"JZEIIKX4","created_at":"2026-07-04T15:22:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:JZEIIKX4YODOZQHEUEWIRJBFXK","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/0604031","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2006-04-13T16:17:47Z","cross_cats_sorted":[],"title_canon_sha256":"a4c5c5d64c4dcaa190e2fb424ac58453187f3274a6c7e2167364081c192f3b38","abstract_canon_sha256":"6f3a85249fe9b786ea0833fa90a0c0baa5bbdc2891efe0ad72bb591d8eac6fe0"},"schema_version":"1.0"},"canonical_sha256":"4e48842afcc386ecc0e4a12c88a425baa584d119bd4c9f6c0e87fa6aa7bb14bd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:22:46.532929Z","signature_b64":"oEVf8lJzZgaEW0ChZcpQLhbw4Ka5ybpcxuB98tocptiF4iPbQlbi775LZUVaKPYgd8etjb5AV5XOM9/w5lR9Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e48842afcc386ecc0e4a12c88a425baa584d119bd4c9f6c0e87fa6aa7bb14bd","last_reissued_at":"2026-07-04T15:22:46.532535Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:22:46.532535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/0604031","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:22:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9fUleqi2WLb5nG9UsvFiqUp1ZmS+DzA8DIgJndIZCjRjlV17HCOycaSENq61lvI0MaesDBMPvrbgYjYO2q11AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:58:53.323280Z"},"content_sha256":"a32e4a965d76c0405fd5c3bf55a75acb12949918e407237a9d3adefd72d767f4","schema_version":"1.0","event_id":"sha256:a32e4a965d76c0405fd5c3bf55a75acb12949918e407237a9d3adefd72d767f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:JZEIIKX4YODOZQHEUEWIRJBFXK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-Energy Thermal Photons from Meson-Meson Bremsstrahlung","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"R. Rapp, W. Liu","submitted_at":"2006-04-13T16:17:47Z","abstract_excerpt":"Within an effective hadronic model including electromagnetic interactions via a U$_{\\rm em}$(1) gauge, we reinvestigate photon Bremsstrahlung from a hot hadronic gas as expected to be formed in relativistic heavy-ion collisions at SPS energies. We calculate photon emission from the reactions $\\pi\\pi\\to\\pi\\pi\\gamma$ and $\\pi K \\to\\pi K\\gamma$ by an explicit (numerical) evaluation of the multi-dimensional phase space integral. This, in particular, allows to avoid the commonly employed soft photon approximation (SPA), as well as to incorporate final-state thermal enhancement factors. % during the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0604031","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/nucl-th/0604031/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:22:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5eu67kHQOquJA/vvYpYwMe6oK7AMf3p0cEbYO30w0wN+Kaw4OsqhLTOVM7nV3N3it5fRaEL4FICObqh5GOpACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:58:53.324216Z"},"content_sha256":"23ccc497306a069038bafa75cc59125bef5e7d535f03fe1fc9ad2f656a6a8d92","schema_version":"1.0","event_id":"sha256:23ccc497306a069038bafa75cc59125bef5e7d535f03fe1fc9ad2f656a6a8d92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/bundle.json","state_url":"https://pith.science/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-13T18:58:53Z","links":{"resolver":"https://pith.science/pith/JZEIIKX4YODOZQHEUEWIRJBFXK","bundle":"https://pith.science/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/bundle.json","state":"https://pith.science/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JZEIIKX4YODOZQHEUEWIRJBFXK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:JZEIIKX4YODOZQHEUEWIRJBFXK","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":"6f3a85249fe9b786ea0833fa90a0c0baa5bbdc2891efe0ad72bb591d8eac6fe0","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2006-04-13T16:17:47Z","title_canon_sha256":"a4c5c5d64c4dcaa190e2fb424ac58453187f3274a6c7e2167364081c192f3b38"},"schema_version":"1.0","source":{"id":"nucl-th/0604031","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0604031","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0604031v3","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0604031","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_12","alias_value":"JZEIIKX4YODO","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_16","alias_value":"JZEIIKX4YODOZQHE","created_at":"2026-07-04T15:22:46Z"},{"alias_kind":"pith_short_8","alias_value":"JZEIIKX4","created_at":"2026-07-04T15:22:46Z"}],"graph_snapshots":[{"event_id":"sha256:23ccc497306a069038bafa75cc59125bef5e7d535f03fe1fc9ad2f656a6a8d92","target":"graph","created_at":"2026-07-04T15:22:46Z","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/nucl-th/0604031/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Within an effective hadronic model including electromagnetic interactions via a U$_{\\rm em}$(1) gauge, we reinvestigate photon Bremsstrahlung from a hot hadronic gas as expected to be formed in relativistic heavy-ion collisions at SPS energies. We calculate photon emission from the reactions $\\pi\\pi\\to\\pi\\pi\\gamma$ and $\\pi K \\to\\pi K\\gamma$ by an explicit (numerical) evaluation of the multi-dimensional phase space integral. This, in particular, allows to avoid the commonly employed soft photon approximation (SPA), as well as to incorporate final-state thermal enhancement factors. % during the","authors_text":"R. Rapp, W. Liu","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2006-04-13T16:17:47Z","title":"Low-Energy Thermal Photons from Meson-Meson Bremsstrahlung"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0604031","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:a32e4a965d76c0405fd5c3bf55a75acb12949918e407237a9d3adefd72d767f4","target":"record","created_at":"2026-07-04T15:22:46Z","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":"6f3a85249fe9b786ea0833fa90a0c0baa5bbdc2891efe0ad72bb591d8eac6fe0","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2006-04-13T16:17:47Z","title_canon_sha256":"a4c5c5d64c4dcaa190e2fb424ac58453187f3274a6c7e2167364081c192f3b38"},"schema_version":"1.0","source":{"id":"nucl-th/0604031","kind":"arxiv","version":3}},"canonical_sha256":"4e48842afcc386ecc0e4a12c88a425baa584d119bd4c9f6c0e87fa6aa7bb14bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e48842afcc386ecc0e4a12c88a425baa584d119bd4c9f6c0e87fa6aa7bb14bd","first_computed_at":"2026-07-04T15:22:46.532535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:22:46.532535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oEVf8lJzZgaEW0ChZcpQLhbw4Ka5ybpcxuB98tocptiF4iPbQlbi775LZUVaKPYgd8etjb5AV5XOM9/w5lR9Dg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:22:46.532929Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0604031","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a32e4a965d76c0405fd5c3bf55a75acb12949918e407237a9d3adefd72d767f4","sha256:23ccc497306a069038bafa75cc59125bef5e7d535f03fe1fc9ad2f656a6a8d92"],"state_sha256":"f66971164053cfe102e9db5ce11c56dfc826f1155e23ea9d7d83e21c511cf615"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+wyY2YlOYMSkH/W5c51JQFmZbc9U9opV8ba+0Dm1eibRhfXdZ7YGeIx0SCmaA3bIldpEi5lhNfeeTIOwmht6DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T18:58:53.331360Z","bundle_sha256":"045a9ac95a01bef89e3c476a71c3b54583ec560fa5bd32c6906c86e8b4b65d49"}}