{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:PPUMGL6PW3QR37NXGRLKFSWQTA","short_pith_number":"pith:PPUMGL6P","schema_version":"1.0","canonical_sha256":"7be8c32fcfb6e11dfdb73456a2cad09821d8b9eabf7c388661e89afbfe83f5af","source":{"kind":"arxiv","id":"1407.0361","version":2},"attestation_state":"computed","paper":{"title":"Prediction of a new potential high-pressure structure of FeSiO$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"R.E. Cohen, Yangzheng Lin","submitted_at":"2014-07-01T19:00:36Z","abstract_excerpt":"We predict a new candidate high-temperature high-pressure structure of FeSiO$_3$ with space-group symmetry Cmmm by applying an evolutionary algorithm within DFT+U that we call post-perovskite II (PPv-II). An exhaustive search found no other competitive candidate structures with ABO$_3$ composition. We compared the X-ray diffraction (XRD) pattern of FeSiO$_3$ PPv-II with experimental results of the recently reported H-phase of (Fe,Mg)SiO$_3$. The intensities and positions of two main X-ray diffraction peaks of PPv-II FeSiO$_3$ compare well with those of the H-phase. We also calculated the stati"},"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":"1407.0361","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-01T19:00:36Z","cross_cats_sorted":[],"title_canon_sha256":"a6634b637d5c9cc4361b660385aff43b79569ddab11ea555a8919940d3ac7d0a","abstract_canon_sha256":"2452fa8757b3a30de1ebcb2fc89490d889eab5f3c91ca94aaa9286800926d14f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:42.919525Z","signature_b64":"HR4NEawnVaZvcbIT9bJ9zMYR5cPiAjrXxmGAR5VpbTApPEnhGa2MoW3HnMgxX9Odt+f1MftbczrdTDThbURiDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7be8c32fcfb6e11dfdb73456a2cad09821d8b9eabf7c388661e89afbfe83f5af","last_reissued_at":"2026-05-18T01:42:42.919057Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:42.919057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Prediction of a new potential high-pressure structure of FeSiO$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"R.E. Cohen, Yangzheng Lin","submitted_at":"2014-07-01T19:00:36Z","abstract_excerpt":"We predict a new candidate high-temperature high-pressure structure of FeSiO$_3$ with space-group symmetry Cmmm by applying an evolutionary algorithm within DFT+U that we call post-perovskite II (PPv-II). An exhaustive search found no other competitive candidate structures with ABO$_3$ composition. We compared the X-ray diffraction (XRD) pattern of FeSiO$_3$ PPv-II with experimental results of the recently reported H-phase of (Fe,Mg)SiO$_3$. The intensities and positions of two main X-ray diffraction peaks of PPv-II FeSiO$_3$ compare well with those of the H-phase. We also calculated the stati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0361","kind":"arxiv","version":2},"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":"1407.0361","created_at":"2026-05-18T01:42:42.919132+00:00"},{"alias_kind":"arxiv_version","alias_value":"1407.0361v2","created_at":"2026-05-18T01:42:42.919132+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0361","created_at":"2026-05-18T01:42:42.919132+00:00"},{"alias_kind":"pith_short_12","alias_value":"PPUMGL6PW3QR","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_16","alias_value":"PPUMGL6PW3QR37NX","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_8","alias_value":"PPUMGL6P","created_at":"2026-05-18T12:28:43.426989+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/PPUMGL6PW3QR37NXGRLKFSWQTA","json":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA.json","graph_json":"https://pith.science/api/pith-number/PPUMGL6PW3QR37NXGRLKFSWQTA/graph.json","events_json":"https://pith.science/api/pith-number/PPUMGL6PW3QR37NXGRLKFSWQTA/events.json","paper":"https://pith.science/paper/PPUMGL6P"},"agent_actions":{"view_html":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA","download_json":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA.json","view_paper":"https://pith.science/paper/PPUMGL6P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1407.0361&json=true","fetch_graph":"https://pith.science/api/pith-number/PPUMGL6PW3QR37NXGRLKFSWQTA/graph.json","fetch_events":"https://pith.science/api/pith-number/PPUMGL6PW3QR37NXGRLKFSWQTA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA/action/storage_attestation","attest_author":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA/action/author_attestation","sign_citation":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA/action/citation_signature","submit_replication":"https://pith.science/pith/PPUMGL6PW3QR37NXGRLKFSWQTA/action/replication_record"}},"created_at":"2026-05-18T01:42:42.919132+00:00","updated_at":"2026-05-18T01:42:42.919132+00:00"}