{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:AOD5VHIQA4BI7GIRG2DRSATD42","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":"fa2662c0443fa254b7ee18c112894c74b73a0d09986412561a320c2b15285040","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-01-06T02:56:30Z","title_canon_sha256":"270bc0a3560b151f26c0a359a36d82e1889bea7fff6fa8d3e7e963c8a2e018c4"},"schema_version":"1.0","source":{"id":"2001.01371","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.01371","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"arxiv_version","alias_value":"2001.01371v2","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.01371","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_12","alias_value":"AOD5VHIQA4BI","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_16","alias_value":"AOD5VHIQA4BI7GIR","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_8","alias_value":"AOD5VHIQ","created_at":"2026-07-05T01:14:34Z"}],"graph_snapshots":[{"event_id":"sha256:baf0fc1d42255aac056f021144b725dbeb1ed5e4ceeb44d1657246e971be97fe","target":"graph","created_at":"2026-07-05T01:14:34Z","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/2001.01371/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the kinematic and thermal vorticities in low-energy heavy-ion collisions by using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. We explore their time evolution and spatial distribution. We find that the initial vorticities have a non-monotonic dependence on the collision energy $\\sqrt{s_{\\rm NN}}$: as $\\sqrt{s_{\\rm NN}}$ grows the vorticities first increase steeply and then decrease with the turning point around $\\sqrt{s_{\\rm NN}}\\sim 3-5$ GeV depending on the centrality.","authors_text":"Song Zhang, Xian-Gai Deng, Xu-Guang Huang, Yu-Gang Ma","cross_cats":["hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-01-06T02:56:30Z","title":"Vorticity in low-energy heavy-ion collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.01371","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:c03e87e2460d1f9dc1e77b45e5f32aa60badc497c4bbd7d79c00d143bf0efe6c","target":"record","created_at":"2026-07-05T01:14:34Z","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":"fa2662c0443fa254b7ee18c112894c74b73a0d09986412561a320c2b15285040","cross_cats_sorted":["hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-01-06T02:56:30Z","title_canon_sha256":"270bc0a3560b151f26c0a359a36d82e1889bea7fff6fa8d3e7e963c8a2e018c4"},"schema_version":"1.0","source":{"id":"2001.01371","kind":"arxiv","version":2}},"canonical_sha256":"0387da9d1007028f99113687190263e6a98f3ff7f9ff76f89c0406bc9e63cdc6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0387da9d1007028f99113687190263e6a98f3ff7f9ff76f89c0406bc9e63cdc6","first_computed_at":"2026-07-05T01:14:34.621010Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:34.621010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tApVWETeMCIgo3VONIzGkZw3l5rGYpvPu8krFLjMpnSYl0kmUs12T1s9re6Avhfea+5oMOjOqlGDJOeXJiqNBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:34.621476Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.01371","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c03e87e2460d1f9dc1e77b45e5f32aa60badc497c4bbd7d79c00d143bf0efe6c","sha256:baf0fc1d42255aac056f021144b725dbeb1ed5e4ceeb44d1657246e971be97fe"],"state_sha256":"0fb9c219ca491a4b6f83d69cc4fc6fe20475237b138348311f6e7ec3bad3896b"}