{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:VMBOBQN6WX7KSC4QE6HSASO2ZD","short_pith_number":"pith:VMBOBQN6","schema_version":"1.0","canonical_sha256":"ab02e0c1beb5fea90b90278f2049dac8c6e58ee9c6c630c4a49e161abc4aeb8b","source":{"kind":"arxiv","id":"2209.09265","version":2},"attestation_state":"computed","paper":{"title":"Causal, stable first-order viscous relativistic hydrodynamics with ideal gas microphysics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","nucl-th"],"primary_cat":"gr-qc","authors_text":"Alex Pandya, Elias R. Most, Frans Pretorius","submitted_at":"2022-09-19T18:00:05Z","abstract_excerpt":"We present the first numerical analysis of causal, stable first-order relativistic hydrodynamics with ideal gas microphysics, based in the formalism developed by Bemfica, Disconzi, Noronha, and Kovtun (BDNK theory). The BDNK approach provides definitions for the conserved stress-energy tensor and baryon current, and rigorously proves causality, local well-posedness, strong hyperbolicity, and linear stability (about equilibrium) for the equations of motion, subject to a set of coupled nonlinear inequalities involving the undetermined model coefficients (the choice for which defines the \"hydrody"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2209.09265","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-09-19T18:00:05Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"80bbaadd6dab456aaa33d7668898b99d4d01789923cbaa415c97694ecf5b7a24","abstract_canon_sha256":"f68d614918101cf803542e063e8d88393060e1aae397a3aac178150657de074a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:29:39.119602Z","signature_b64":"ovxpYIMTnDko6OIGrQttHom6E4+sGY1BSwN9wnNAI3TtjfQa+dRflkeM+ZeNay/fZbL0g/6NFXb23ATcTK1ZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab02e0c1beb5fea90b90278f2049dac8c6e58ee9c6c630c4a49e161abc4aeb8b","last_reissued_at":"2026-07-05T05:29:39.119190Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:29:39.119190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Causal, stable first-order viscous relativistic hydrodynamics with ideal gas microphysics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","nucl-th"],"primary_cat":"gr-qc","authors_text":"Alex Pandya, Elias R. Most, Frans Pretorius","submitted_at":"2022-09-19T18:00:05Z","abstract_excerpt":"We present the first numerical analysis of causal, stable first-order relativistic hydrodynamics with ideal gas microphysics, based in the formalism developed by Bemfica, Disconzi, Noronha, and Kovtun (BDNK theory). The BDNK approach provides definitions for the conserved stress-energy tensor and baryon current, and rigorously proves causality, local well-posedness, strong hyperbolicity, and linear stability (about equilibrium) for the equations of motion, subject to a set of coupled nonlinear inequalities involving the undetermined model coefficients (the choice for which defines the \"hydrody"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.09265","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2209.09265/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2209.09265","created_at":"2026-07-05T05:29:39.119254+00:00"},{"alias_kind":"arxiv_version","alias_value":"2209.09265v2","created_at":"2026-07-05T05:29:39.119254+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.09265","created_at":"2026-07-05T05:29:39.119254+00:00"},{"alias_kind":"pith_short_12","alias_value":"VMBOBQN6WX7K","created_at":"2026-07-05T05:29:39.119254+00:00"},{"alias_kind":"pith_short_16","alias_value":"VMBOBQN6WX7KSC4Q","created_at":"2026-07-05T05:29:39.119254+00:00"},{"alias_kind":"pith_short_8","alias_value":"VMBOBQN6","created_at":"2026-07-05T05:29:39.119254+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.22691","citing_title":"Finite-volume scheme for first-order viscoresistive relativistic magnetohydrodynamics","ref_index":18,"is_internal_anchor":false},{"citing_arxiv_id":"2606.06600","citing_title":"Radial Oscillations of Viscous Stars at Finite Temperature","ref_index":20,"is_internal_anchor":false},{"citing_arxiv_id":"2604.13208","citing_title":"Axial Oscillations of Viscous Neutron Stars","ref_index":46,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD","json":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD.json","graph_json":"https://pith.science/api/pith-number/VMBOBQN6WX7KSC4QE6HSASO2ZD/graph.json","events_json":"https://pith.science/api/pith-number/VMBOBQN6WX7KSC4QE6HSASO2ZD/events.json","paper":"https://pith.science/paper/VMBOBQN6"},"agent_actions":{"view_html":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD","download_json":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD.json","view_paper":"https://pith.science/paper/VMBOBQN6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2209.09265&json=true","fetch_graph":"https://pith.science/api/pith-number/VMBOBQN6WX7KSC4QE6HSASO2ZD/graph.json","fetch_events":"https://pith.science/api/pith-number/VMBOBQN6WX7KSC4QE6HSASO2ZD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD/action/storage_attestation","attest_author":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD/action/author_attestation","sign_citation":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD/action/citation_signature","submit_replication":"https://pith.science/pith/VMBOBQN6WX7KSC4QE6HSASO2ZD/action/replication_record"}},"created_at":"2026-07-05T05:29:39.119254+00:00","updated_at":"2026-07-05T05:29:39.119254+00:00"}