{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:HG5KLKRN7AUAHIHFPC3JATXACP","short_pith_number":"pith:HG5KLKRN","schema_version":"1.0","canonical_sha256":"39baa5aa2df82803a0e578b6904ee013c3c6e200d547b52678f882b31ed764d3","source":{"kind":"arxiv","id":"2207.00442","version":2},"attestation_state":"computed","paper":{"title":"Emergence of microphysical bulk viscosity in binary neutron star post-merger dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Alexander Haber, Elias R. Most, Jorge Noronha, Mark G. Alford, Steven P. Harris, Ziyuan Zhang","submitted_at":"2022-07-01T14:08:45Z","abstract_excerpt":"In nuclear matter in isolated neutron stars, the flavor content (e.g., proton fraction) is subject to weak interactions, establishing flavor ($\\beta$-)equilibrium. However, there can be deviations from this equilibrium during the merger of two neutron stars. We study the resulting out-of-equilibrium dynamics during the collision by incorporating direct and modified Urca processes (in the neutrino-transparent regime) into general-relativistic hydrodynamics simulations with a simplified neutrino transport scheme. We demonstrate how weak-interaction-driven bulk viscosity in post-merger simulation"},"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":"2207.00442","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-07-01T14:08:45Z","cross_cats_sorted":["gr-qc","nucl-th"],"title_canon_sha256":"d60fe1f053698b41c32d773703c2e40bcbd548e05b3bf80aba26346cbcd68c02","abstract_canon_sha256":"fb8d038491111535e09fd3a04a595db2c087f97e2eefff5c6a41152e542cd9c0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:01:22.252827Z","signature_b64":"hHT92bJE2z17bivcvjID6rMUIoX13puchMDEvp9Wf1yfCWJpTY1+4le4S88uKAUqpue1Jqtzl4YU/VteU6VMDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"39baa5aa2df82803a0e578b6904ee013c3c6e200d547b52678f882b31ed764d3","last_reissued_at":"2026-07-05T09:01:22.252406Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:01:22.252406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Emergence of microphysical bulk viscosity in binary neutron star post-merger dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Alexander Haber, Elias R. Most, Jorge Noronha, Mark G. Alford, Steven P. Harris, Ziyuan Zhang","submitted_at":"2022-07-01T14:08:45Z","abstract_excerpt":"In nuclear matter in isolated neutron stars, the flavor content (e.g., proton fraction) is subject to weak interactions, establishing flavor ($\\beta$-)equilibrium. However, there can be deviations from this equilibrium during the merger of two neutron stars. We study the resulting out-of-equilibrium dynamics during the collision by incorporating direct and modified Urca processes (in the neutrino-transparent regime) into general-relativistic hydrodynamics simulations with a simplified neutrino transport scheme. We demonstrate how weak-interaction-driven bulk viscosity in post-merger simulation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.00442","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/2207.00442/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":"2207.00442","created_at":"2026-07-05T09:01:22.252464+00:00"},{"alias_kind":"arxiv_version","alias_value":"2207.00442v2","created_at":"2026-07-05T09:01:22.252464+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.00442","created_at":"2026-07-05T09:01:22.252464+00:00"},{"alias_kind":"pith_short_12","alias_value":"HG5KLKRN7AUA","created_at":"2026-07-05T09:01:22.252464+00:00"},{"alias_kind":"pith_short_16","alias_value":"HG5KLKRN7AUAHIHF","created_at":"2026-07-05T09:01:22.252464+00:00"},{"alias_kind":"pith_short_8","alias_value":"HG5KLKRN","created_at":"2026-07-05T09:01:22.252464+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":6,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.20957","citing_title":"Out-of-Equilibrium Effects in Non-Radial Relativistic Stellar Perturbations: A Model-Agnostic Formulation and Mode Analysis","ref_index":64,"is_internal_anchor":false},{"citing_arxiv_id":"2606.11299","citing_title":"A magnetar formation in binary neutron star merger","ref_index":80,"is_internal_anchor":false},{"citing_arxiv_id":"2605.24145","citing_title":"Inferring Neutron-Star Properties from Post-merger Gravitational-wave Spectra with Neural Networks","ref_index":110,"is_internal_anchor":false},{"citing_arxiv_id":"2510.09104","citing_title":"Thermal and Magnetic effects on Bulk Viscosity in Binary Neutron Star Mergers","ref_index":18,"is_internal_anchor":false},{"citing_arxiv_id":"2509.25838","citing_title":"Bulk viscosity from neutron decays to dark baryons in neutron star matter","ref_index":89,"is_internal_anchor":false},{"citing_arxiv_id":"2604.13208","citing_title":"Axial Oscillations of Viscous Neutron Stars","ref_index":27,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP","json":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP.json","graph_json":"https://pith.science/api/pith-number/HG5KLKRN7AUAHIHFPC3JATXACP/graph.json","events_json":"https://pith.science/api/pith-number/HG5KLKRN7AUAHIHFPC3JATXACP/events.json","paper":"https://pith.science/paper/HG5KLKRN"},"agent_actions":{"view_html":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP","download_json":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP.json","view_paper":"https://pith.science/paper/HG5KLKRN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2207.00442&json=true","fetch_graph":"https://pith.science/api/pith-number/HG5KLKRN7AUAHIHFPC3JATXACP/graph.json","fetch_events":"https://pith.science/api/pith-number/HG5KLKRN7AUAHIHFPC3JATXACP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP/action/storage_attestation","attest_author":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP/action/author_attestation","sign_citation":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP/action/citation_signature","submit_replication":"https://pith.science/pith/HG5KLKRN7AUAHIHFPC3JATXACP/action/replication_record"}},"created_at":"2026-07-05T09:01:22.252464+00:00","updated_at":"2026-07-05T09:01:22.252464+00:00"}