{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TJE5TVXWEDTZQTTFIILI5MEGC4","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":"c433cafb490489657a7f94cf7d7181ff9b77ebea733f2dfe30c94c3c657d7bda","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-06-23T11:35:07Z","title_canon_sha256":"3ad980ebae84b4aa79a3b08c17665307eb753f3742e1e70f4062ebb64c97f1b5"},"schema_version":"1.0","source":{"id":"1006.4478","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.4478","created_at":"2026-05-18T04:38:40Z"},{"alias_kind":"arxiv_version","alias_value":"1006.4478v2","created_at":"2026-05-18T04:38:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.4478","created_at":"2026-05-18T04:38:40Z"},{"alias_kind":"pith_short_12","alias_value":"TJE5TVXWEDTZ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TJE5TVXWEDTZQTTF","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TJE5TVXW","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:6b2f41ba0b8d9f39c3a0193160eb10923c3a383a6a354758a70e7adb5083b914","target":"graph","created_at":"2026-05-18T04:38:40Z","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":"Taking into account of entropy generation during evolution of a viscous fluid, we have estimated inverse Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity to entropy ratio in $\\sqrt{s}$=62 and 200 GeV Cu+Cu/Au+Au collisions. Viscosity to entropy ratio is estimated as $\\eta/s=0.17\\pm 0.10\\pm 0.20$, the first error is statistical, the second one is systematic. In a central Au+Au collision, inverse Knudsen number is $\\approx 2.80\\pm 1.63$, which presumably small for complete equilibration. In peripheral collisions it is even less. Ideal hydrodynamic limit for elliptic f","authors_text":"A. K. Chaudhuri","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-06-23T11:35:07Z","title":"Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity in $\\sqrt{s}$=62 and 200 GeV Cu+Cu/Au+Au collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.4478","kind":"arxiv","version":2},"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:f207520d04855ef2f4555572780a55fa190ea34b383b47f897350c22c11ee64d","target":"record","created_at":"2026-05-18T04:38:40Z","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":"c433cafb490489657a7f94cf7d7181ff9b77ebea733f2dfe30c94c3c657d7bda","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-06-23T11:35:07Z","title_canon_sha256":"3ad980ebae84b4aa79a3b08c17665307eb753f3742e1e70f4062ebb64c97f1b5"},"schema_version":"1.0","source":{"id":"1006.4478","kind":"arxiv","version":2}},"canonical_sha256":"9a49d9d6f620e7984e6542168eb08617061f6ff8bc0619f19e483c24d587f08c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a49d9d6f620e7984e6542168eb08617061f6ff8bc0619f19e483c24d587f08c","first_computed_at":"2026-05-18T04:38:40.023805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:40.023805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wQLu4x9PkLm2w38lshzhp6wYan2KqKbz6VRfi+ZWV9NZHyGl2Xh2A471pB3SVgfEJ5mdLq725AAIYm2txiqSAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:40.024324Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.4478","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f207520d04855ef2f4555572780a55fa190ea34b383b47f897350c22c11ee64d","sha256:6b2f41ba0b8d9f39c3a0193160eb10923c3a383a6a354758a70e7adb5083b914"],"state_sha256":"2c7e05cb809ef648a330346d00137b105ad3b2f766de04c07ef2407d3c287078"}