{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:Q5L552ZEDUXJLLMJUQSESREPNX","short_pith_number":"pith:Q5L552ZE","schema_version":"1.0","canonical_sha256":"8757deeb241d2e95ad89a42449448f6de83e27fb255043b644689581fa0c9ed1","source":{"kind":"arxiv","id":"1607.01970","version":1},"attestation_state":"computed","paper":{"title":"Compression and phase diagram of lithium hydrides at elevated pressures and temperatures by first-principles calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hua Y. Geng, Qiang Wu, Xiang R. Chen, Xiao Z. Yan, Yang M. Chen, Yi X. Wang, Zi W. Wang","submitted_at":"2016-07-07T11:42:23Z","abstract_excerpt":"High pressure and high temperature properties of AB (A = $^6$Li, $^7$Li; B = H, D, T) are investigated with first-principles method comprehensively. It is found that the H$^{-}$ sublattice features in the low-pressure electronic structure near the Fermi level of LiH are shifted to that dominated by the Li$^{+}$ sublattice in compression. The lattice dynamics is studied in quasi-harmonic approximation, from which the phonon contribution to the free energy and the isotopic effects are accurately modelled with the aid of a parameterized double-Debye model. The obtained equation of state (EOS) mat"},"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":"1607.01970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-07T11:42:23Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"7ac6fe02d9789416699a2eb1f9b51c15dba62bdaba5cd9845a70e36e0625a1e9","abstract_canon_sha256":"b182a06533fe642c7c9fdcd2a172086b091d475ad3b8db75f1515651b2b6e23e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:12.211792Z","signature_b64":"pvEWzJdYjzrK9aCIJOlevFhWunbmf8jyTTkRALIWZONpt6vpGzF6qNGcRZi8+cUESk5DfgNe1d/PjjpCuUSmBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8757deeb241d2e95ad89a42449448f6de83e27fb255043b644689581fa0c9ed1","last_reissued_at":"2026-05-18T01:00:12.211180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:12.211180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Compression and phase diagram of lithium hydrides at elevated pressures and temperatures by first-principles calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hua Y. Geng, Qiang Wu, Xiang R. Chen, Xiao Z. Yan, Yang M. Chen, Yi X. Wang, Zi W. Wang","submitted_at":"2016-07-07T11:42:23Z","abstract_excerpt":"High pressure and high temperature properties of AB (A = $^6$Li, $^7$Li; B = H, D, T) are investigated with first-principles method comprehensively. It is found that the H$^{-}$ sublattice features in the low-pressure electronic structure near the Fermi level of LiH are shifted to that dominated by the Li$^{+}$ sublattice in compression. The lattice dynamics is studied in quasi-harmonic approximation, from which the phonon contribution to the free energy and the isotopic effects are accurately modelled with the aid of a parameterized double-Debye model. The obtained equation of state (EOS) mat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.01970","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":"1607.01970","created_at":"2026-05-18T01:00:12.211271+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.01970v1","created_at":"2026-05-18T01:00:12.211271+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.01970","created_at":"2026-05-18T01:00:12.211271+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q5L552ZEDUXJ","created_at":"2026-05-18T12:30:39.010887+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q5L552ZEDUXJLLMJ","created_at":"2026-05-18T12:30:39.010887+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q5L552ZE","created_at":"2026-05-18T12:30:39.010887+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/Q5L552ZEDUXJLLMJUQSESREPNX","json":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX.json","graph_json":"https://pith.science/api/pith-number/Q5L552ZEDUXJLLMJUQSESREPNX/graph.json","events_json":"https://pith.science/api/pith-number/Q5L552ZEDUXJLLMJUQSESREPNX/events.json","paper":"https://pith.science/paper/Q5L552ZE"},"agent_actions":{"view_html":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX","download_json":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX.json","view_paper":"https://pith.science/paper/Q5L552ZE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.01970&json=true","fetch_graph":"https://pith.science/api/pith-number/Q5L552ZEDUXJLLMJUQSESREPNX/graph.json","fetch_events":"https://pith.science/api/pith-number/Q5L552ZEDUXJLLMJUQSESREPNX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX/action/storage_attestation","attest_author":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX/action/author_attestation","sign_citation":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX/action/citation_signature","submit_replication":"https://pith.science/pith/Q5L552ZEDUXJLLMJUQSESREPNX/action/replication_record"}},"created_at":"2026-05-18T01:00:12.211271+00:00","updated_at":"2026-05-18T01:00:12.211271+00:00"}