{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:S2S3GJAQP2JIH7YS4USUQ26AAF","short_pith_number":"pith:S2S3GJAQ","schema_version":"1.0","canonical_sha256":"96a5b324107e9283ff12e525486bc001615cafdfe955e6333a00ab5ee0d4f717","source":{"kind":"arxiv","id":"0911.5600","version":1},"attestation_state":"computed","paper":{"title":"Lattice distortion in hcp rare gas solids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.other","authors_text":"A. Grechnev, S. M. Tretyak, Yu. A. Freiman","submitted_at":"2009-11-30T10:05:18Z","abstract_excerpt":"The lattice distortion parameter $\\delta \\equiv c/a-\\sqrt{8/3}$ has been calculated as a function of molar volume for the hcp phases of He, Ar, Kr and Xe. Results from both semi-empirical potentials and density functional theory are presented. Our study shows that $\\delta$ is negative for helium in the entire pressure range. For Ar, Kr and Xe, however, $\\delta$ changes sign from negative to positive as the pressure increases, growing rapidly in magnitude at higher pressures."},"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":"0911.5600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-11-30T10:05:18Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"fbe16a264ff46a274ec68686ba0c7066bb826308ac27dedb9057aca235bda15e","abstract_canon_sha256":"d01dfc767feeda7db752fd58ff55bcb687ffc5c9577f187d8abaa6982a4d1d99"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:35.663414Z","signature_b64":"Og9SVjxtZq4baQZoa2/yBaz/O2Uod1pn45/1DmTnSiskF22oQvlblTnNL1vJVyU/n7gOG8B0RdI1c+rGtOQmDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96a5b324107e9283ff12e525486bc001615cafdfe955e6333a00ab5ee0d4f717","last_reissued_at":"2026-05-18T02:10:35.662671Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:35.662671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lattice distortion in hcp rare gas solids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.other","authors_text":"A. Grechnev, S. M. Tretyak, Yu. A. Freiman","submitted_at":"2009-11-30T10:05:18Z","abstract_excerpt":"The lattice distortion parameter $\\delta \\equiv c/a-\\sqrt{8/3}$ has been calculated as a function of molar volume for the hcp phases of He, Ar, Kr and Xe. Results from both semi-empirical potentials and density functional theory are presented. Our study shows that $\\delta$ is negative for helium in the entire pressure range. For Ar, Kr and Xe, however, $\\delta$ changes sign from negative to positive as the pressure increases, growing rapidly in magnitude at higher pressures."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.5600","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":"0911.5600","created_at":"2026-05-18T02:10:35.662771+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.5600v1","created_at":"2026-05-18T02:10:35.662771+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.5600","created_at":"2026-05-18T02:10:35.662771+00:00"},{"alias_kind":"pith_short_12","alias_value":"S2S3GJAQP2JI","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"S2S3GJAQP2JIH7YS","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"S2S3GJAQ","created_at":"2026-05-18T12:26:01.383474+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/S2S3GJAQP2JIH7YS4USUQ26AAF","json":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF.json","graph_json":"https://pith.science/api/pith-number/S2S3GJAQP2JIH7YS4USUQ26AAF/graph.json","events_json":"https://pith.science/api/pith-number/S2S3GJAQP2JIH7YS4USUQ26AAF/events.json","paper":"https://pith.science/paper/S2S3GJAQ"},"agent_actions":{"view_html":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF","download_json":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF.json","view_paper":"https://pith.science/paper/S2S3GJAQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.5600&json=true","fetch_graph":"https://pith.science/api/pith-number/S2S3GJAQP2JIH7YS4USUQ26AAF/graph.json","fetch_events":"https://pith.science/api/pith-number/S2S3GJAQP2JIH7YS4USUQ26AAF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF/action/storage_attestation","attest_author":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF/action/author_attestation","sign_citation":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF/action/citation_signature","submit_replication":"https://pith.science/pith/S2S3GJAQP2JIH7YS4USUQ26AAF/action/replication_record"}},"created_at":"2026-05-18T02:10:35.662771+00:00","updated_at":"2026-05-18T02:10:35.662771+00:00"}