{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:PLQTKDN5HNVR45W4DS2HV3BMIK","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":"4db8d9d8d0c70ddcd3d907460acf592ef16cbfa7f23036913137409afd7dbc85","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-03-02T19:00:04Z","title_canon_sha256":"ec19299c70034487f9c0a78d74ec593dc55e86ffe7d97fb1cb9f7276b56d5fab"},"schema_version":"1.0","source":{"id":"2303.03104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.03104","created_at":"2026-07-05T06:01:37Z"},{"alias_kind":"arxiv_version","alias_value":"2303.03104v1","created_at":"2026-07-05T06:01:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.03104","created_at":"2026-07-05T06:01:37Z"},{"alias_kind":"pith_short_12","alias_value":"PLQTKDN5HNVR","created_at":"2026-07-05T06:01:37Z"},{"alias_kind":"pith_short_16","alias_value":"PLQTKDN5HNVR45W4","created_at":"2026-07-05T06:01:37Z"},{"alias_kind":"pith_short_8","alias_value":"PLQTKDN5","created_at":"2026-07-05T06:01:37Z"}],"graph_snapshots":[{"event_id":"sha256:c52dc486f82aa927b0415e3d24e9777c2ee8cc5c2b811e20ecba5f27c98513de","target":"graph","created_at":"2026-07-05T06:01:37Z","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/2303.03104/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We start by presenting the general set of structure equations for the 1+3 threading spacetime decomposition in 4 spacetime dimensions, valid for any theory of gravitation based on a metric compatible affine connection. We then apply these equations to the study of cosmological solutions of the Einstein-Cartan theory in which the matter is modeled by a perfect fluid with intrinsic spin. It is shown that the metric tensor can be described by a generic FLRW solution. However, due to the presence of torsion the Weyl tensors might not vanish. The coupling between the torsion and Weyl tensors leads ","authors_text":"Jos\\'e P. S. Lemos, Paulo Luz","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-03-02T19:00:04Z","title":"Relativistic cosmology and intrinsic spin of matter: Results and theorems in Einstein-Cartan theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.03104","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:c3fa2c3fa74f56a54b7c2b69525d17cee1e920b62e924298709b5854d52ff31a","target":"record","created_at":"2026-07-05T06:01:37Z","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":"4db8d9d8d0c70ddcd3d907460acf592ef16cbfa7f23036913137409afd7dbc85","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-03-02T19:00:04Z","title_canon_sha256":"ec19299c70034487f9c0a78d74ec593dc55e86ffe7d97fb1cb9f7276b56d5fab"},"schema_version":"1.0","source":{"id":"2303.03104","kind":"arxiv","version":1}},"canonical_sha256":"7ae1350dbd3b6b1e76dc1cb47aec2c428ad1490ead76d7e6efd3a7e4fc4642eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ae1350dbd3b6b1e76dc1cb47aec2c428ad1490ead76d7e6efd3a7e4fc4642eb","first_computed_at":"2026-07-05T06:01:37.245849Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:01:37.245849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dtBzColFBydL15DHHyHTvsKbKuC0web5fZkemFRnXtam+qwTyHy2hRYuZtIQRfF+XfKXku6da1K6atB7BuWYBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:01:37.246293Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.03104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3fa2c3fa74f56a54b7c2b69525d17cee1e920b62e924298709b5854d52ff31a","sha256:c52dc486f82aa927b0415e3d24e9777c2ee8cc5c2b811e20ecba5f27c98513de"],"state_sha256":"0e6459a2573943e0400ce8e2df406ea8c13923c2739c83e68fdbfb906c93a86d"}