{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:FNRAEXCDISOMPE3A4AK766XFPE","short_pith_number":"pith:FNRAEXCD","schema_version":"1.0","canonical_sha256":"2b62025c43449cc79360e015ff7ae57926c1ebe1669368e1397502348375c1c1","source":{"kind":"arxiv","id":"1507.04702","version":1},"attestation_state":"computed","paper":{"title":"Orbital-free extension to Kohn-Sham density functional theory equation of state calculations: application to silicon dioxide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Scott Crockett, Travis Sjostrom","submitted_at":"2015-07-16T18:58:12Z","abstract_excerpt":"The liquid regime equation of state of silicon dioxide SiO$_2$ is calculated via quantum molecular dynamics in the density range 5 to 15 g/cc and with temperatures from 0.5 to 100 eV, including the $\\alpha$-quartz and stishovite phase Hugoniot curves. Below 8 eV calculations are based on Kohn-Sham density functional theory (DFT), above 8 eV a new orbital-free DFT formulation, presented here, based on matching Kohn-Sham DFT calculations is employed. Recent experimental shock data is found to be in very good agreement with the current results. Finally both experimental and simulation data are us"},"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":"1507.04702","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-16T18:58:12Z","cross_cats_sorted":[],"title_canon_sha256":"73af3a09f97c7623e237b28351d0c014e104e047a46964f7e890c23ec857a561","abstract_canon_sha256":"78402cb15c53fdcb99d141e350369520a925954cfc4519860b5f879a664632a3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:37.586398Z","signature_b64":"KRcmIOXbaI6Y1cGof0ewmRYtgEccM9a6ym2xECB1lbv3Za4I5L45QAEB48JDWVOqj71TSf/SVkYdpr1QEj5OBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b62025c43449cc79360e015ff7ae57926c1ebe1669368e1397502348375c1c1","last_reissued_at":"2026-05-18T01:31:37.585724Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:37.585724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Orbital-free extension to Kohn-Sham density functional theory equation of state calculations: application to silicon dioxide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Scott Crockett, Travis Sjostrom","submitted_at":"2015-07-16T18:58:12Z","abstract_excerpt":"The liquid regime equation of state of silicon dioxide SiO$_2$ is calculated via quantum molecular dynamics in the density range 5 to 15 g/cc and with temperatures from 0.5 to 100 eV, including the $\\alpha$-quartz and stishovite phase Hugoniot curves. Below 8 eV calculations are based on Kohn-Sham density functional theory (DFT), above 8 eV a new orbital-free DFT formulation, presented here, based on matching Kohn-Sham DFT calculations is employed. Recent experimental shock data is found to be in very good agreement with the current results. Finally both experimental and simulation data are us"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04702","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":""},"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":"1507.04702","created_at":"2026-05-18T01:31:37.585825+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.04702v1","created_at":"2026-05-18T01:31:37.585825+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04702","created_at":"2026-05-18T01:31:37.585825+00:00"},{"alias_kind":"pith_short_12","alias_value":"FNRAEXCDISOM","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_16","alias_value":"FNRAEXCDISOMPE3A","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_8","alias_value":"FNRAEXCD","created_at":"2026-05-18T12:29:19.899920+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/FNRAEXCDISOMPE3A4AK766XFPE","json":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE.json","graph_json":"https://pith.science/api/pith-number/FNRAEXCDISOMPE3A4AK766XFPE/graph.json","events_json":"https://pith.science/api/pith-number/FNRAEXCDISOMPE3A4AK766XFPE/events.json","paper":"https://pith.science/paper/FNRAEXCD"},"agent_actions":{"view_html":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE","download_json":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE.json","view_paper":"https://pith.science/paper/FNRAEXCD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.04702&json=true","fetch_graph":"https://pith.science/api/pith-number/FNRAEXCDISOMPE3A4AK766XFPE/graph.json","fetch_events":"https://pith.science/api/pith-number/FNRAEXCDISOMPE3A4AK766XFPE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE/action/storage_attestation","attest_author":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE/action/author_attestation","sign_citation":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE/action/citation_signature","submit_replication":"https://pith.science/pith/FNRAEXCDISOMPE3A4AK766XFPE/action/replication_record"}},"created_at":"2026-05-18T01:31:37.585825+00:00","updated_at":"2026-05-18T01:31:37.585825+00:00"}