{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PQQDKPO43I6ZQO4PWGLQMDAVLB","short_pith_number":"pith:PQQDKPO4","canonical_record":{"source":{"id":"1306.3842","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-17T13:00:00Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"80ba39761e7de8d852b579e444609c3d9b1e2dbf08e06c2e4441b780cd90b201","abstract_canon_sha256":"a6962b4ddfab2d3ca64eabfb26da390a27511ff408312d33bcfba6648b9bf90d"},"schema_version":"1.0"},"canonical_sha256":"7c20353ddcda3d983b8fb197060c15586826ff25c19a8bf1df89525901eaea97","source":{"kind":"arxiv","id":"1306.3842","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3842","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3842v1","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3842","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"pith_short_12","alias_value":"PQQDKPO43I6Z","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PQQDKPO43I6ZQO4P","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PQQDKPO4","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PQQDKPO43I6ZQO4PWGLQMDAVLB","target":"record","payload":{"canonical_record":{"source":{"id":"1306.3842","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-17T13:00:00Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"80ba39761e7de8d852b579e444609c3d9b1e2dbf08e06c2e4441b780cd90b201","abstract_canon_sha256":"a6962b4ddfab2d3ca64eabfb26da390a27511ff408312d33bcfba6648b9bf90d"},"schema_version":"1.0"},"canonical_sha256":"7c20353ddcda3d983b8fb197060c15586826ff25c19a8bf1df89525901eaea97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:16.242594Z","signature_b64":"COvKz0cIdpsUxz/LzhaHCGUb28xGESOBGa7R0iQo7QNlTtM91jJVN5gru49yEgnDHtntA8wQWZ9MxGMUmWL8Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c20353ddcda3d983b8fb197060c15586826ff25c19a8bf1df89525901eaea97","last_reissued_at":"2026-05-18T01:49:16.241979Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:16.241979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.3842","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a3RxXwjNemsGXqCANwQP+dr00RkZHHBdl/+cLoOlUXZIroOi35qSWaM1lEaIZYo8UhUQ/LXH6Q3+58ZceYtFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:55:24.654670Z"},"content_sha256":"d2c38b5663d60d325d65e0daf165673f92ceb962cbc423a45016173a544910ef","schema_version":"1.0","event_id":"sha256:d2c38b5663d60d325d65e0daf165673f92ceb962cbc423a45016173a544910ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PQQDKPO43I6ZQO4PWGLQMDAVLB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bulk viscosity of hot dense Quark matter in PNJL model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Defu Hou, Le Zhang, Pan-Pan Guo, Shi-Song Xiao","submitted_at":"2013-06-17T13:00:00Z","abstract_excerpt":"Starting from the Kubo formula and the the QCD low energy theorem, we study the the bulk viscosity of hot dense quark matter in the PNJL model from the equation of state . We show that the bulk viscosity has a sharp peak near the chiral phase transition, and the ratio of bulk viscosity over entropy rises dramatically in the vicinity of the phase transition. These results agrees with that from lattice and other model calculations. In addition, we show that the increase of chemical potential raises the bulk viscosity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3842","kind":"arxiv","version":1},"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":"2026-05-18T01:49:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ty61GIXkdtUdhCDkSQFNMjPbNyamY9h/KUeWeSw85YJZ12mrCoeJJGxuC6sd3wQAyItxXARhDRgg54LMFXKEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:55:24.655352Z"},"content_sha256":"23281f7db93472dc1bcd7096e88d90860cfe5d322303933f14992c6a306c80eb","schema_version":"1.0","event_id":"sha256:23281f7db93472dc1bcd7096e88d90860cfe5d322303933f14992c6a306c80eb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/bundle.json","state_url":"https://pith.science/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/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":"2026-05-27T15:55:24Z","links":{"resolver":"https://pith.science/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB","bundle":"https://pith.science/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/bundle.json","state":"https://pith.science/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PQQDKPO43I6ZQO4PWGLQMDAVLB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PQQDKPO43I6ZQO4PWGLQMDAVLB","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":"a6962b4ddfab2d3ca64eabfb26da390a27511ff408312d33bcfba6648b9bf90d","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-17T13:00:00Z","title_canon_sha256":"80ba39761e7de8d852b579e444609c3d9b1e2dbf08e06c2e4441b780cd90b201"},"schema_version":"1.0","source":{"id":"1306.3842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3842","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3842v1","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3842","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"pith_short_12","alias_value":"PQQDKPO43I6Z","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PQQDKPO43I6ZQO4P","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PQQDKPO4","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:23281f7db93472dc1bcd7096e88d90860cfe5d322303933f14992c6a306c80eb","target":"graph","created_at":"2026-05-18T01:49:16Z","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":"Starting from the Kubo formula and the the QCD low energy theorem, we study the the bulk viscosity of hot dense quark matter in the PNJL model from the equation of state . We show that the bulk viscosity has a sharp peak near the chiral phase transition, and the ratio of bulk viscosity over entropy rises dramatically in the vicinity of the phase transition. These results agrees with that from lattice and other model calculations. In addition, we show that the increase of chemical potential raises the bulk viscosity.","authors_text":"Defu Hou, Le Zhang, Pan-Pan Guo, Shi-Song Xiao","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-17T13:00:00Z","title":"Bulk viscosity of hot dense Quark matter in PNJL model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3842","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:d2c38b5663d60d325d65e0daf165673f92ceb962cbc423a45016173a544910ef","target":"record","created_at":"2026-05-18T01:49:16Z","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":"a6962b4ddfab2d3ca64eabfb26da390a27511ff408312d33bcfba6648b9bf90d","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-17T13:00:00Z","title_canon_sha256":"80ba39761e7de8d852b579e444609c3d9b1e2dbf08e06c2e4441b780cd90b201"},"schema_version":"1.0","source":{"id":"1306.3842","kind":"arxiv","version":1}},"canonical_sha256":"7c20353ddcda3d983b8fb197060c15586826ff25c19a8bf1df89525901eaea97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c20353ddcda3d983b8fb197060c15586826ff25c19a8bf1df89525901eaea97","first_computed_at":"2026-05-18T01:49:16.241979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:16.241979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"COvKz0cIdpsUxz/LzhaHCGUb28xGESOBGa7R0iQo7QNlTtM91jJVN5gru49yEgnDHtntA8wQWZ9MxGMUmWL8Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:16.242594Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.3842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2c38b5663d60d325d65e0daf165673f92ceb962cbc423a45016173a544910ef","sha256:23281f7db93472dc1bcd7096e88d90860cfe5d322303933f14992c6a306c80eb"],"state_sha256":"336c9dc31881d54164190ecdaf445ba11b9e9c21660bba267d1574f4f95f56ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sn5nccb63Ai7dMu9cJiIGa/swi+pAvZ33HANRuvsPRNbMhkyBWrBQjy/mc1GlHw88VBOox2cmidA8/7pqRz8DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:55:24.659108Z","bundle_sha256":"c8ca58ebea64baa9d05ae0361dae5f3a42c732957978010622a2e3abf21684b3"}}