{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:BIG3QAXR2DM7QU27VJJP7JB7TU","short_pith_number":"pith:BIG3QAXR","canonical_record":{"source":{"id":"1509.06738","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-22T19:27:18Z","cross_cats_sorted":["nucl-ex","nucl-th"],"title_canon_sha256":"7a0eec86f21b037bf79ca83fac8ff894321b2647d79a5df380c05f9d54605307","abstract_canon_sha256":"5ab51618461c05c566bef1bc69b5fe20724a661939e92977ae371e9caeeb8f9e"},"schema_version":"1.0"},"canonical_sha256":"0a0db802f1d0d9f8535faa52ffa43f9d2f23512d41b2d84fea4cb953ad139b9a","source":{"kind":"arxiv","id":"1509.06738","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06738","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06738v3","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06738","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"pith_short_12","alias_value":"BIG3QAXR2DM7","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BIG3QAXR2DM7QU27","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BIG3QAXR","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:BIG3QAXR2DM7QU27VJJP7JB7TU","target":"record","payload":{"canonical_record":{"source":{"id":"1509.06738","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-22T19:27:18Z","cross_cats_sorted":["nucl-ex","nucl-th"],"title_canon_sha256":"7a0eec86f21b037bf79ca83fac8ff894321b2647d79a5df380c05f9d54605307","abstract_canon_sha256":"5ab51618461c05c566bef1bc69b5fe20724a661939e92977ae371e9caeeb8f9e"},"schema_version":"1.0"},"canonical_sha256":"0a0db802f1d0d9f8535faa52ffa43f9d2f23512d41b2d84fea4cb953ad139b9a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:17.879045Z","signature_b64":"S0xgA+949KOrTV1rpw5k4ZQj0q2r5M9LA3138R9IcpF7jhEAUwRZnMvaTh61OkR0QKS/Iqofct/ZmvJWSOTfAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a0db802f1d0d9f8535faa52ffa43f9d2f23512d41b2d84fea4cb953ad139b9a","last_reissued_at":"2026-05-18T01:16:17.878242Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:17.878242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.06738","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":"2026-05-18T01:16:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VKBU8JUlGMoTr2RsYENyDGYzExhxgkEijMFMpF4DDlaM+78+Bp0p7Gqzpm2RLyluCLYwdvrlchXkdTwoUV83Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T00:48:21.782288Z"},"content_sha256":"11d320f8f3a3476f4dc7b975cdca38d2abc2741106d79307a137179117fe1f28","schema_version":"1.0","event_id":"sha256:11d320f8f3a3476f4dc7b975cdca38d2abc2741106d79307a137179117fe1f28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:BIG3QAXR2DM7QU27VJJP7JB7TU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The production of photons in relativistic heavy-ion collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Bj\\\"orn Schenke, Charles Gale, Chun Shen, Gabriel S. Denicol, Jean-Fran\\c{c}ois Paquet, Matthew Luzum, Sangyong Jeon","submitted_at":"2015-09-22T19:27:18Z","abstract_excerpt":"In this work it is shown that the use of a hydrodynamical model of heavy ion collisions which incorporates recent developments, together with updated photon emission rates greatly improves agreement with both ALICE and PHENIX measurements of direct photons, supporting the idea that thermal photons are the dominant source of direct photon momentum anisotropy. The event-by-event hydrodynamical model uses IP-Glasma initial states and includes, for the first time, both shear and bulk viscosities, along with second order couplings between the two viscosities. The effect of both shear and bulk visco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06738","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":""},"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":"2026-05-18T01:16:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HfSTFdZ9rHwsJwMfnIyYMItfjFAzjSln5Nt1yXuNtlIIBeu2SGR6LzsmYSAxbZoOHfJqYHStRE4aA8rtVxhNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T00:48:21.782991Z"},"content_sha256":"afd085f97274f196db7bd3c88521414507ea86b2ab6fbd05764d56eadd2af09f","schema_version":"1.0","event_id":"sha256:afd085f97274f196db7bd3c88521414507ea86b2ab6fbd05764d56eadd2af09f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/bundle.json","state_url":"https://pith.science/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/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":"2026-05-24T00:48:21Z","links":{"resolver":"https://pith.science/pith/BIG3QAXR2DM7QU27VJJP7JB7TU","bundle":"https://pith.science/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/bundle.json","state":"https://pith.science/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BIG3QAXR2DM7QU27VJJP7JB7TU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:BIG3QAXR2DM7QU27VJJP7JB7TU","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":"5ab51618461c05c566bef1bc69b5fe20724a661939e92977ae371e9caeeb8f9e","cross_cats_sorted":["nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-22T19:27:18Z","title_canon_sha256":"7a0eec86f21b037bf79ca83fac8ff894321b2647d79a5df380c05f9d54605307"},"schema_version":"1.0","source":{"id":"1509.06738","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06738","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06738v3","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06738","created_at":"2026-05-18T01:16:17Z"},{"alias_kind":"pith_short_12","alias_value":"BIG3QAXR2DM7","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BIG3QAXR2DM7QU27","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BIG3QAXR","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:afd085f97274f196db7bd3c88521414507ea86b2ab6fbd05764d56eadd2af09f","target":"graph","created_at":"2026-05-18T01:16:17Z","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":"In this work it is shown that the use of a hydrodynamical model of heavy ion collisions which incorporates recent developments, together with updated photon emission rates greatly improves agreement with both ALICE and PHENIX measurements of direct photons, supporting the idea that thermal photons are the dominant source of direct photon momentum anisotropy. The event-by-event hydrodynamical model uses IP-Glasma initial states and includes, for the first time, both shear and bulk viscosities, along with second order couplings between the two viscosities. The effect of both shear and bulk visco","authors_text":"Bj\\\"orn Schenke, Charles Gale, Chun Shen, Gabriel S. Denicol, Jean-Fran\\c{c}ois Paquet, Matthew Luzum, Sangyong Jeon","cross_cats":["nucl-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-22T19:27:18Z","title":"The production of photons in relativistic heavy-ion collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06738","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":"sha256:11d320f8f3a3476f4dc7b975cdca38d2abc2741106d79307a137179117fe1f28","target":"record","created_at":"2026-05-18T01:16:17Z","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":"5ab51618461c05c566bef1bc69b5fe20724a661939e92977ae371e9caeeb8f9e","cross_cats_sorted":["nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-09-22T19:27:18Z","title_canon_sha256":"7a0eec86f21b037bf79ca83fac8ff894321b2647d79a5df380c05f9d54605307"},"schema_version":"1.0","source":{"id":"1509.06738","kind":"arxiv","version":3}},"canonical_sha256":"0a0db802f1d0d9f8535faa52ffa43f9d2f23512d41b2d84fea4cb953ad139b9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a0db802f1d0d9f8535faa52ffa43f9d2f23512d41b2d84fea4cb953ad139b9a","first_computed_at":"2026-05-18T01:16:17.878242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:16:17.878242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S0xgA+949KOrTV1rpw5k4ZQj0q2r5M9LA3138R9IcpF7jhEAUwRZnMvaTh61OkR0QKS/Iqofct/ZmvJWSOTfAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:16:17.879045Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.06738","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11d320f8f3a3476f4dc7b975cdca38d2abc2741106d79307a137179117fe1f28","sha256:afd085f97274f196db7bd3c88521414507ea86b2ab6fbd05764d56eadd2af09f"],"state_sha256":"363e6c5ab4174a1bd5cc7e72022af7c866c3e18420c0b6607a11877a3c796a34"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"46GVga2aOnYSOVLUtWFTzbaOQhE4NqBas/+lCp8q2XVF6w6Y7+i+rjoErZ1iLYJeW8hQRKjHzC8tLtV05lXnCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T00:48:21.787297Z","bundle_sha256":"f84c949cfe08a1de178061815691cb546fe1327cff0c84b35d659b88472aeccf"}}