{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:MVEYCYXCF7XFO7PRMXLWXHOVQA","short_pith_number":"pith:MVEYCYXC","schema_version":"1.0","canonical_sha256":"65498162e22fee577df165d76b9dd580068520ab535b2c54e198fbaf590ed86c","source":{"kind":"arxiv","id":"1903.06797","version":1},"attestation_state":"computed","paper":{"title":"A semi-implicit compressible model for atmospheric flows with seamless access to soundproof and hydrostatic dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA","physics.comp-ph"],"primary_cat":"math.NA","authors_text":"Rupert Klein, Tommaso Benacchio","submitted_at":"2019-03-15T20:44:33Z","abstract_excerpt":"We introduce a second-order numerical scheme for compressible atmospheric motions at small to planetary scales. The collocated finite volume method treats the advection of mass, momentum, and mass-weighted potential temperature in conservation form while relying on Exner pressure for the pressure gradient term. It discretises the rotating compressible equations by evolving full variables rather than perturbations around a background state, and operates with time steps constrained by the advection speed only. Perturbation variables are only used as auxiliary quantities in the formulation of the"},"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":"1903.06797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2019-03-15T20:44:33Z","cross_cats_sorted":["cs.NA","physics.comp-ph"],"title_canon_sha256":"c2f2b10fa099e088dd8057d03b185d4fd7f4430fd68bfc84169452c2fe37c5c9","abstract_canon_sha256":"266480b4fb366738b89c6bf62c291a756ced8b2bb998c1b3ee1476cd55c1f4c0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T20:14:14.116396Z","signature_b64":"uNNsRQFwapF4VpuzGvYs5BdT6bfeis53IRcjSXfRzNeilID76b3Pxq1fRaewugAapYmVpg2eKod7fNrSg2iMCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"65498162e22fee577df165d76b9dd580068520ab535b2c54e198fbaf590ed86c","last_reissued_at":"2026-06-04T20:14:14.115821Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T20:14:14.115821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A semi-implicit compressible model for atmospheric flows with seamless access to soundproof and hydrostatic dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA","physics.comp-ph"],"primary_cat":"math.NA","authors_text":"Rupert Klein, Tommaso Benacchio","submitted_at":"2019-03-15T20:44:33Z","abstract_excerpt":"We introduce a second-order numerical scheme for compressible atmospheric motions at small to planetary scales. The collocated finite volume method treats the advection of mass, momentum, and mass-weighted potential temperature in conservation form while relying on Exner pressure for the pressure gradient term. It discretises the rotating compressible equations by evolving full variables rather than perturbations around a background state, and operates with time steps constrained by the advection speed only. Perturbation variables are only used as auxiliary quantities in the formulation of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06797","kind":"arxiv","version":1},"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/1903.06797/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":"1903.06797","created_at":"2026-06-04T20:14:14.115907+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.06797v1","created_at":"2026-06-04T20:14:14.115907+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06797","created_at":"2026-06-04T20:14:14.115907+00:00"},{"alias_kind":"pith_short_12","alias_value":"MVEYCYXCF7XF","created_at":"2026-06-04T20:14:14.115907+00:00"},{"alias_kind":"pith_short_16","alias_value":"MVEYCYXCF7XFO7PR","created_at":"2026-06-04T20:14:14.115907+00:00"},{"alias_kind":"pith_short_8","alias_value":"MVEYCYXC","created_at":"2026-06-04T20:14:14.115907+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA","json":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA.json","graph_json":"https://pith.science/api/pith-number/MVEYCYXCF7XFO7PRMXLWXHOVQA/graph.json","events_json":"https://pith.science/api/pith-number/MVEYCYXCF7XFO7PRMXLWXHOVQA/events.json","paper":"https://pith.science/paper/MVEYCYXC"},"agent_actions":{"view_html":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA","download_json":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA.json","view_paper":"https://pith.science/paper/MVEYCYXC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.06797&json=true","fetch_graph":"https://pith.science/api/pith-number/MVEYCYXCF7XFO7PRMXLWXHOVQA/graph.json","fetch_events":"https://pith.science/api/pith-number/MVEYCYXCF7XFO7PRMXLWXHOVQA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA/action/storage_attestation","attest_author":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA/action/author_attestation","sign_citation":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA/action/citation_signature","submit_replication":"https://pith.science/pith/MVEYCYXCF7XFO7PRMXLWXHOVQA/action/replication_record"}},"created_at":"2026-06-04T20:14:14.115907+00:00","updated_at":"2026-06-04T20:14:14.115907+00:00"}