{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:NJC7KDLS72IVEP2UILCVCCGEQE","short_pith_number":"pith:NJC7KDLS","schema_version":"1.0","canonical_sha256":"6a45f50d72fe91523f5442c55108c48105c5f217eda8e657107defaf1a82ecc7","source":{"kind":"arxiv","id":"1007.5392","version":1},"attestation_state":"computed","paper":{"title":"First-principles study of ground state properties of zirconium dihydride","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Bao-Tian Wang, Chao-Hui He, Peng Zhang, Ping Zhang","submitted_at":"2010-07-30T09:22:08Z","abstract_excerpt":"Structural, mechanical, electronic, and thermodynamic properties of fluorite and tetragonal phases of ZrH$_{2}$ are systematically studied by employing the density functional theory within generalized gradient approximation. The existence of the bistable structure for ZrH$_{2}$ is mainly due to the tetragonal distortions. And our calculated lattice constants for the stable face-centered tetragonal (fct) phase with \\emph{c/a}=0.885 are consistent well with experiments. Through calculating elastic constants, the mechanically unstable characters of face-centered cubic (fcc) phase and fct structur"},"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":"1007.5392","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-07-30T09:22:08Z","cross_cats_sorted":[],"title_canon_sha256":"ee1cb04bc5135fb08a5a59e92a95e57e4356caefe78e6df743499e581f552a08","abstract_canon_sha256":"bcc9d85b4d036660536a7dd69df0bb7795789c457b79b8ba5ada8acae7d516db"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:42:45.310987Z","signature_b64":"8IIS5JnO2FGdGNvwOWjnjhNthjmqlQy/vkwmZTybKFkEs/jsNF8RhZTVx7713Q/sTWH4pkw5yZFEnPQRQptzAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a45f50d72fe91523f5442c55108c48105c5f217eda8e657107defaf1a82ecc7","last_reissued_at":"2026-05-18T04:42:45.310223Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:42:45.310223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First-principles study of ground state properties of zirconium dihydride","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Bao-Tian Wang, Chao-Hui He, Peng Zhang, Ping Zhang","submitted_at":"2010-07-30T09:22:08Z","abstract_excerpt":"Structural, mechanical, electronic, and thermodynamic properties of fluorite and tetragonal phases of ZrH$_{2}$ are systematically studied by employing the density functional theory within generalized gradient approximation. The existence of the bistable structure for ZrH$_{2}$ is mainly due to the tetragonal distortions. And our calculated lattice constants for the stable face-centered tetragonal (fct) phase with \\emph{c/a}=0.885 are consistent well with experiments. Through calculating elastic constants, the mechanically unstable characters of face-centered cubic (fcc) phase and fct structur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.5392","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":"1007.5392","created_at":"2026-05-18T04:42:45.310337+00:00"},{"alias_kind":"arxiv_version","alias_value":"1007.5392v1","created_at":"2026-05-18T04:42:45.310337+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.5392","created_at":"2026-05-18T04:42:45.310337+00:00"},{"alias_kind":"pith_short_12","alias_value":"NJC7KDLS72IV","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_16","alias_value":"NJC7KDLS72IVEP2U","created_at":"2026-05-18T12:26:10.704358+00:00"},{"alias_kind":"pith_short_8","alias_value":"NJC7KDLS","created_at":"2026-05-18T12:26:10.704358+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/NJC7KDLS72IVEP2UILCVCCGEQE","json":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE.json","graph_json":"https://pith.science/api/pith-number/NJC7KDLS72IVEP2UILCVCCGEQE/graph.json","events_json":"https://pith.science/api/pith-number/NJC7KDLS72IVEP2UILCVCCGEQE/events.json","paper":"https://pith.science/paper/NJC7KDLS"},"agent_actions":{"view_html":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE","download_json":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE.json","view_paper":"https://pith.science/paper/NJC7KDLS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1007.5392&json=true","fetch_graph":"https://pith.science/api/pith-number/NJC7KDLS72IVEP2UILCVCCGEQE/graph.json","fetch_events":"https://pith.science/api/pith-number/NJC7KDLS72IVEP2UILCVCCGEQE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE/action/storage_attestation","attest_author":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE/action/author_attestation","sign_citation":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE/action/citation_signature","submit_replication":"https://pith.science/pith/NJC7KDLS72IVEP2UILCVCCGEQE/action/replication_record"}},"created_at":"2026-05-18T04:42:45.310337+00:00","updated_at":"2026-05-18T04:42:45.310337+00:00"}