{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XSAXFUUPU3OGBCGMHWBBUQSL4J","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":"97bf10fc9577abc4545256d2ba93e43fbf4afcf912ffb1a4f621202266e0c8d1","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-07-25T04:59:06Z","title_canon_sha256":"f16f7e3f4b4fd1e0604d2e6907709de77cee034dfd35d13b9f5f4e1afdeaa9af"},"schema_version":"1.0","source":{"id":"2107.11726","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.11726","created_at":"2026-07-05T03:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"2107.11726v1","created_at":"2026-07-05T03:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.11726","created_at":"2026-07-05T03:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"XSAXFUUPU3OG","created_at":"2026-07-05T03:47:44Z"},{"alias_kind":"pith_short_16","alias_value":"XSAXFUUPU3OGBCGM","created_at":"2026-07-05T03:47:44Z"},{"alias_kind":"pith_short_8","alias_value":"XSAXFUUP","created_at":"2026-07-05T03:47:44Z"}],"graph_snapshots":[{"event_id":"sha256:314b4329af2a17dc16c8dbda1988a580cf3a88da519ec98c7e7e7925d3c92c74","target":"graph","created_at":"2026-07-05T03:47:44Z","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/2107.11726/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have studied analytically the longitudinally boost-invariant motion of a relativistic dissipative fluid with spin. We have derived the analytic solutions of spin density and spin chemical potential as a function of proper time $\\tau$ in the presence of viscous tensor and the second order relaxation time corrections for spin. Interestingly, analogous to the ordinary particle number density and chemical potential, we find that the spin density and spin chemical potential decay as $\\sim\\tau^{-1}$ and $\\sim\\tau^{-1/3}$, respectively. It implies that the initial spin density may not survive at t","authors_text":"Dong-Lin Wang, Shi Pu, Shuo Fang","cross_cats":["hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-07-25T04:59:06Z","title":"Analytic solutions of relativistic dissipative spin hydrodynamics with Bjorken expansion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.11726","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":"sha256:5c9471d9ee29abdfa4139efea9e35fdbd8bcf801fe185a1450b54fea456bf634","target":"record","created_at":"2026-07-05T03:47:44Z","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":"97bf10fc9577abc4545256d2ba93e43fbf4afcf912ffb1a4f621202266e0c8d1","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2021-07-25T04:59:06Z","title_canon_sha256":"f16f7e3f4b4fd1e0604d2e6907709de77cee034dfd35d13b9f5f4e1afdeaa9af"},"schema_version":"1.0","source":{"id":"2107.11726","kind":"arxiv","version":1}},"canonical_sha256":"bc8172d28fa6dc6088cc3d821a424be2720805a57e6c418f8ba75a11a3bf9c8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc8172d28fa6dc6088cc3d821a424be2720805a57e6c418f8ba75a11a3bf9c8d","first_computed_at":"2026-07-05T03:47:44.911009Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:47:44.911009Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FEu6rZgje01Um7CeexYuxQqy4WRY970V/IisQprSXGw8mJWnEaOIOlawZt456UXVlUhkQKVdcuWDcMtBFMEtCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:47:44.911504Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.11726","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c9471d9ee29abdfa4139efea9e35fdbd8bcf801fe185a1450b54fea456bf634","sha256:314b4329af2a17dc16c8dbda1988a580cf3a88da519ec98c7e7e7925d3c92c74"],"state_sha256":"37b9cd456a99d730fabcaedaf6156990936c2a9f13a0df4e91f363efdc537940"}