{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LW5MRINW5ZGMEFNU27EZCY6U7V","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":"3abefae254eca91f5e68ed179c3217d4b688f23e7d5c91895f1c4ef512a6df8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-09T01:18:26Z","title_canon_sha256":"f8b96428d0ba43bf52873e9c6d9dd838e32aa6cbac4e4fdb9080e867c77d3d37"},"schema_version":"1.0","source":{"id":"1509.02593","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.02593","created_at":"2026-05-18T01:26:17Z"},{"alias_kind":"arxiv_version","alias_value":"1509.02593v1","created_at":"2026-05-18T01:26:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.02593","created_at":"2026-05-18T01:26:17Z"},{"alias_kind":"pith_short_12","alias_value":"LW5MRINW5ZGM","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LW5MRINW5ZGMEFNU","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LW5MRINW","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:e6292e37536ca20c398dbc423e71e44682dd0ac8a4941a8578100b5ba6b5ecf5","target":"graph","created_at":"2026-05-18T01:26:17Z","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":"The equilibrium structure and functional properties exhibited by brownmillerite oxides, a family of perovskite-derived structures with alternating layers of $B$O$_6$ octahedra and $B$O$_4$ tetrahedra, viz., ordered arrangements of oxygen vacancies, is dependent on a variety of competing crystal-chemistry factors. We use electronic structure calculations to disentangle the complex interactions in two ferrates, Sr$_2$Fe$_2$O$_5$ and Ca$_2$Fe$_2$O$_5$, relating the stability of the equilibrium (strain-free) and thin film structures to both previously identified and newly herein proposed descripto","authors_text":"James M. Rondinelli, Joshua Young","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-09T01:18:26Z","title":"Crystal Structure and Electronic Properties of Bulk and Thin Film Brownmillerite Oxides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02593","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:eb96dd2dba7b3446f0a91ab5f485e278eb676bf8b1cd9a46592f46a6a3e48fca","target":"record","created_at":"2026-05-18T01:26:17Z","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":"3abefae254eca91f5e68ed179c3217d4b688f23e7d5c91895f1c4ef512a6df8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-09T01:18:26Z","title_canon_sha256":"f8b96428d0ba43bf52873e9c6d9dd838e32aa6cbac4e4fdb9080e867c77d3d37"},"schema_version":"1.0","source":{"id":"1509.02593","kind":"arxiv","version":1}},"canonical_sha256":"5dbac8a1b6ee4cc215b4d7c99163d4fd5c35811a88bfb76d56e2cf3512f9b967","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dbac8a1b6ee4cc215b4d7c99163d4fd5c35811a88bfb76d56e2cf3512f9b967","first_computed_at":"2026-05-18T01:26:17.835646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:26:17.835646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZMEznU6d9TeG+6K6jn+eOUeUBpvijlTyEWb+6Vnd0p7Mo142Iqy8Msq6JzHOVVVT2ZPrpE0Y3GCwVxx4DNo+BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:26:17.836341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.02593","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb96dd2dba7b3446f0a91ab5f485e278eb676bf8b1cd9a46592f46a6a3e48fca","sha256:e6292e37536ca20c398dbc423e71e44682dd0ac8a4941a8578100b5ba6b5ecf5"],"state_sha256":"6c531a00ecb49ce9dd75c1462221d3515d62c0425065ec3adc88eb52aa53e9d3"}