{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:HJZQQDUHKA5S3EDG6D6TO4NSVR","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":"e6b1e58446686be933ff7cc7b91765936db289d99bb6281b5707e6708ad60641","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-23T08:14:13Z","title_canon_sha256":"9b4c3e1e6f590516aa89c69eeb1265d70eb0afa3ffe046e7cb51c834107f43b1"},"schema_version":"1.0","source":{"id":"2203.12261","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.12261","created_at":"2026-07-05T04:50:33Z"},{"alias_kind":"arxiv_version","alias_value":"2203.12261v2","created_at":"2026-07-05T04:50:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.12261","created_at":"2026-07-05T04:50:33Z"},{"alias_kind":"pith_short_12","alias_value":"HJZQQDUHKA5S","created_at":"2026-07-05T04:50:33Z"},{"alias_kind":"pith_short_16","alias_value":"HJZQQDUHKA5S3EDG","created_at":"2026-07-05T04:50:33Z"},{"alias_kind":"pith_short_8","alias_value":"HJZQQDUH","created_at":"2026-07-05T04:50:33Z"}],"graph_snapshots":[{"event_id":"sha256:1d1857cffc94d54f3cab051783b30b2d985c085a92f471810a701c17e07a18b7","target":"graph","created_at":"2026-07-05T04:50:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2203.12261/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Alkaline-earth metal oxides, in particular MgO and CaO dominate Earths lower mantle, therefore, exploring high pressure behavior of this class of compounds is of significant geophysical research interest. Among all these compounds, BaO exhibits rich polymorphism in the pressure range of 0-1.5 Mbar. Static enthalpy calculations revealed that BaO undergoes a pressure induced structural phase transition from NaCl-type (B1) $\\rightarrow$ NiAs-type (B8) $\\rightarrow$ distorted CsCl-type (d-B2) $\\rightarrow$ CsCl-type (B2) at 5.1, 19.5, 120 GPa respectively. B1 $\\rightarrow$ B8 $\\&$ B8 $\\rightarrow$","authors_text":"John B. Parise, K. Lavanya, Lars Ehm, M.Sainath, N. Yedukondalu, S. C. Rakesh Roshan, Shweta D. Dabhi, Suresh Sripada","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-23T08:14:13Z","title":"Lattice instability, anharmonicity and Raman spectra of BaO under high pressure: A first principles study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.12261","kind":"arxiv","version":2},"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":"sha256:8e5813760cdb6bde13918a91b8cfa2d0ba196a4691dbb107e7d798ce9b0f9cbe","target":"record","created_at":"2026-07-05T04:50:33Z","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":"e6b1e58446686be933ff7cc7b91765936db289d99bb6281b5707e6708ad60641","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-23T08:14:13Z","title_canon_sha256":"9b4c3e1e6f590516aa89c69eeb1265d70eb0afa3ffe046e7cb51c834107f43b1"},"schema_version":"1.0","source":{"id":"2203.12261","kind":"arxiv","version":2}},"canonical_sha256":"3a73080e87503b2d9066f0fd3771b2ac4c6968d254ed5593938e1f4c8bbe53ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a73080e87503b2d9066f0fd3771b2ac4c6968d254ed5593938e1f4c8bbe53ad","first_computed_at":"2026-07-05T04:50:33.669601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:50:33.669601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q0MnXn/IBZdSPXe60TOwTn09XVemlp5zf9xTKAPRNLdTiQV020eI3oleppYIKg2JjTdQR/HGT7l8sQcRo69CDw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:50:33.670060Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.12261","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e5813760cdb6bde13918a91b8cfa2d0ba196a4691dbb107e7d798ce9b0f9cbe","sha256:1d1857cffc94d54f3cab051783b30b2d985c085a92f471810a701c17e07a18b7"],"state_sha256":"859c0acda65ef4b2afc6903af823da9b7c478e73b4f190162ceac9d2e12ba827"}