{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:LAMWKKU7M7X3DMV6IJ3ZKIZP7S","short_pith_number":"pith:LAMWKKU7","schema_version":"1.0","canonical_sha256":"5819652a9f67efb1b2be427795232ffca0af9bf85ccb80c8e2a992b78187af11","source":{"kind":"arxiv","id":"gr-qc/0401019","version":2},"attestation_state":"computed","paper":{"title":"Dynamical shift conditions for the Z4 and BSSN hyperbolic formalisms","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"C. Bona, C. Palenzuela","submitted_at":"2004-01-07T11:19:44Z","abstract_excerpt":"A class of dynamical shift conditions is shown to lead to a strongly hyperbolic evolution system, both in the Z4 and in the BSSN Numerical Relativity formalisms. This class generalizes the harmonic shift condition, where light speed is the only non-trivial characteristic speed, and it is contained into the multi-parameter family of minimal distortion shift conditions recently proposed by Lindblom and Scheel. The relationship with the analogous 'dynamical freezing' shift conditions used in black hole simulations discussed."},"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":"gr-qc/0401019","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2004-01-07T11:19:44Z","cross_cats_sorted":[],"title_canon_sha256":"4cf7008a5efa50b90c21cf80b3b23fed1e5729ca15e6a820d3200b972d15fae1","abstract_canon_sha256":"81a4e4a0df08dccd45b7eef32c3832ec09987348cbda62b3e2665145b605b3ac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:23:46.949228Z","signature_b64":"UyKc/AYbjL8chWBHtKCDi9ecUe+sXcvBcfpOYDA32MqWhnGmLTZg1N3emcNMu5zv/Cs9Byvc/gz4xZIYX27CCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5819652a9f67efb1b2be427795232ffca0af9bf85ccb80c8e2a992b78187af11","last_reissued_at":"2026-05-18T04:23:46.948545Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:23:46.948545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamical shift conditions for the Z4 and BSSN hyperbolic formalisms","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"C. Bona, C. Palenzuela","submitted_at":"2004-01-07T11:19:44Z","abstract_excerpt":"A class of dynamical shift conditions is shown to lead to a strongly hyperbolic evolution system, both in the Z4 and in the BSSN Numerical Relativity formalisms. This class generalizes the harmonic shift condition, where light speed is the only non-trivial characteristic speed, and it is contained into the multi-parameter family of minimal distortion shift conditions recently proposed by Lindblom and Scheel. The relationship with the analogous 'dynamical freezing' shift conditions used in black hole simulations discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0401019","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":""},"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":"gr-qc/0401019","created_at":"2026-05-18T04:23:46.948639+00:00"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0401019v2","created_at":"2026-05-18T04:23:46.948639+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0401019","created_at":"2026-05-18T04:23:46.948639+00:00"},{"alias_kind":"pith_short_12","alias_value":"LAMWKKU7M7X3","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_16","alias_value":"LAMWKKU7M7X3DMV6","created_at":"2026-05-18T12:25:52.687210+00:00"},{"alias_kind":"pith_short_8","alias_value":"LAMWKKU7","created_at":"2026-05-18T12:25:52.687210+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2502.03223","citing_title":"SACRA-2D: New axisymmetric general relativistic hydrodynamics code with fixed mesh refinement","ref_index":114,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S","json":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S.json","graph_json":"https://pith.science/api/pith-number/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/graph.json","events_json":"https://pith.science/api/pith-number/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/events.json","paper":"https://pith.science/paper/LAMWKKU7"},"agent_actions":{"view_html":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S","download_json":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S.json","view_paper":"https://pith.science/paper/LAMWKKU7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=gr-qc/0401019&json=true","fetch_graph":"https://pith.science/api/pith-number/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/graph.json","fetch_events":"https://pith.science/api/pith-number/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/action/storage_attestation","attest_author":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/action/author_attestation","sign_citation":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/action/citation_signature","submit_replication":"https://pith.science/pith/LAMWKKU7M7X3DMV6IJ3ZKIZP7S/action/replication_record"}},"created_at":"2026-05-18T04:23:46.948639+00:00","updated_at":"2026-05-18T04:23:46.948639+00:00"}