{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NF2E5SBPWRPN2BNUVQV6H674ZV","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"88c5f36acccff1ebb32530c00d43ff851172b6430bf87d8bb21e15a83e757c05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-08T21:19:35Z","title_canon_sha256":"23e65e300d03ebdcaa16ea0e303171927e5ce5aaa0bd01257d4401e714847407"},"schema_version":"1.0","source":{"id":"1601.02031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.02031","created_at":"2026-05-18T00:57:31Z"},{"alias_kind":"arxiv_version","alias_value":"1601.02031v1","created_at":"2026-05-18T00:57:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.02031","created_at":"2026-05-18T00:57:31Z"},{"alias_kind":"pith_short_12","alias_value":"NF2E5SBPWRPN","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"NF2E5SBPWRPN2BNU","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"NF2E5SBP","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:cb330cbf2ad165eefb171bbaf9e29a5f88484415db4c37b44525e929cacc07bb","target":"graph","created_at":"2026-05-18T00:57:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Barium titanate (BaTiO$_3$) is a prototypical ferroelectric perovskite that undergoes the rhombohedral-orthorhombic-tetragonal-cubic phase transitions as the temperature increases. In this work, we develop a classical interatomic potential for BaTiO$_3$ within the framework of the bond-valence theory. The force field is parameterized from first-principles results, enabling accurate large-scale molecular dynamics (MD) simulations at finite temperatures. Our model potential for BaTiO$_3$ reproduces the temperature-driven phase transitions in isobaric-isothermal ensemble (NPT) MD simulations. Thi","authors_text":"Andrew M. Rappe, Ilya Grinberg, Shi Liu, Yubo Qi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-08T21:19:35Z","title":"Atomistic Description for Temperature-Driven Phase Transitions in BaTiO$_3$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.02031","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ad01f3dfae58b822b8afe7f24c53a9c002098d51eb40c6854d60e17dc169d243","target":"record","created_at":"2026-05-18T00:57:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"88c5f36acccff1ebb32530c00d43ff851172b6430bf87d8bb21e15a83e757c05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-01-08T21:19:35Z","title_canon_sha256":"23e65e300d03ebdcaa16ea0e303171927e5ce5aaa0bd01257d4401e714847407"},"schema_version":"1.0","source":{"id":"1601.02031","kind":"arxiv","version":1}},"canonical_sha256":"69744ec82fb45edd05b4ac2be3fbfccd66a4ce43506a848c6e5024bb3f1816e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69744ec82fb45edd05b4ac2be3fbfccd66a4ce43506a848c6e5024bb3f1816e1","first_computed_at":"2026-05-18T00:57:31.521429Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:31.521429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JQLDY8WqWLqBWXZAsSJevmLyQCVo1wRwfH4q9mLj1DT8rUZQNLuIJ+7VEk7x26H58IRGk5IO06hrwJp5s+kLBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:31.521876Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.02031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad01f3dfae58b822b8afe7f24c53a9c002098d51eb40c6854d60e17dc169d243","sha256:cb330cbf2ad165eefb171bbaf9e29a5f88484415db4c37b44525e929cacc07bb"],"state_sha256":"c02a55603802ea1de1c25e0fdcb0fa0420e637ec1b53d75bee630abd9167e260"}