{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FNUMY4H2D6PTCZMHR74VCZMNNE","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":"40c97a6a09c9bcd82bad8ca4392c29e86525f9150670e243d65d25d0023244ed","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-08-01T08:01:34Z","title_canon_sha256":"7c276b2117409fc6ab2279c454aa7c03c6092ac4a1a1eff46c9a904854d3dff4"},"schema_version":"1.0","source":{"id":"1408.0098","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.0098","created_at":"2026-05-18T01:42:26Z"},{"alias_kind":"arxiv_version","alias_value":"1408.0098v1","created_at":"2026-05-18T01:42:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.0098","created_at":"2026-05-18T01:42:26Z"},{"alias_kind":"pith_short_12","alias_value":"FNUMY4H2D6PT","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FNUMY4H2D6PTCZMH","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FNUMY4H2","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:ee1ab835238e500efe66cca89cf2f9aefe4d952753b585db59660cc233703625","target":"graph","created_at":"2026-05-18T01:42:26Z","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":"Recent STAR data from the RHIC beam energy scan (BES) show that the midrapidity slope dv1/dy of the directed flow v1 of net-protons changes sign twice within the collision energy range 7.7 - 39 GeV. To investigate this phenomenon, we study the collision energy dependence of v1 utilizing a Boltzmann + hydrodynamics hybrid model. Calculations with dynamically evolved initial and final state show no qualitative difference between an equation of state with a cross-over and one with a first-order phase transition, in contrast to earlier pure fluid predictions. Furthermore, our analysis of the ellip","authors_text":"Hannah Petersen, Jan Steinheimer, Jussi Auvinen","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-08-01T08:01:34Z","title":"What the collective flow excitation function can tell about the quark-gluon plasma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.0098","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":"sha256:2094dcf8f935b6b36d7aeb5be78a01a27b68d0dd6cf0ad616791580c0d4f0d54","target":"record","created_at":"2026-05-18T01:42:26Z","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":"40c97a6a09c9bcd82bad8ca4392c29e86525f9150670e243d65d25d0023244ed","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-08-01T08:01:34Z","title_canon_sha256":"7c276b2117409fc6ab2279c454aa7c03c6092ac4a1a1eff46c9a904854d3dff4"},"schema_version":"1.0","source":{"id":"1408.0098","kind":"arxiv","version":1}},"canonical_sha256":"2b68cc70fa1f9f3165878ff951658d691eeec88752e367a53042034d105e9fcb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b68cc70fa1f9f3165878ff951658d691eeec88752e367a53042034d105e9fcb","first_computed_at":"2026-05-18T01:42:26.420620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:26.420620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q6nOEOQeMFlbKzbSMUCIA39/51nsnpjpTC4g3eWSh27Uf168lYHa3AV1mKf+vOIfT1SxMJhuSjYf++WoRVLwCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:26.421134Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.0098","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2094dcf8f935b6b36d7aeb5be78a01a27b68d0dd6cf0ad616791580c0d4f0d54","sha256:ee1ab835238e500efe66cca89cf2f9aefe4d952753b585db59660cc233703625"],"state_sha256":"4c092b7c8c45b045c5e3a6e4aa4d4e2e5fb675b103f3856d2f56fb1f559aeee4"}