{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:CEICCNPCIR3M4O6VF6P6IWHJ22","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":"e22405d1e3cb2de8abd45d115c4ec1afd27a27faa5ab8418149fb726a83772fb","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-08-19T02:55:55Z","title_canon_sha256":"5e63f585d2696a584cf938212fee6f2f91af56014221fd2025c1557f874776d5"},"schema_version":"1.0","source":{"id":"1908.06569","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06569","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06569v1","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06569","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"CEICCNPCIR3M","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_16","alias_value":"CEICCNPCIR3M4O6V","created_at":"2026-07-04T23:58:17Z"},{"alias_kind":"pith_short_8","alias_value":"CEICCNPC","created_at":"2026-07-04T23:58:17Z"}],"graph_snapshots":[{"event_id":"sha256:50f442bf4502bb7535fbf0509ec61359c721aeda910d5dd8a3312334a9f67cc4","target":"graph","created_at":"2026-07-04T23:58:17Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.06569/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we demonstrate a remarkable change of chemical trend of Iron under high pressure that is of great importance for understanding the distribution of elements in the Earth's mantle and core. Using first principles crystal structure search method, we conduct a systematic study of the propensity of p block elements to chemically bind with iron under high pressures ranging from ambient conditions to that of Earth's core. We show that under increasing pressure, iron tends to reverse its chemical nature, changing from an electron donor (reductant) to an electron acceptor, and oxidizes p-","authors_text":"Dalar Khodagholian, Frank J. Spera, Jianfu Li, Jiani Lin, Maosheng Miao, Matthew G. Jackson, Simon A. T. Redfern, Xiaolei Feng, Xiaoli Wang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-08-19T02:55:55Z","title":"Reverse chemistry of iron in the deep Earth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06569","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:f15425d49d6bac636d840b51592955db956f4bff88eb36e1ae5c1df48448e8e8","target":"record","created_at":"2026-07-04T23:58:17Z","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":"e22405d1e3cb2de8abd45d115c4ec1afd27a27faa5ab8418149fb726a83772fb","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-08-19T02:55:55Z","title_canon_sha256":"5e63f585d2696a584cf938212fee6f2f91af56014221fd2025c1557f874776d5"},"schema_version":"1.0","source":{"id":"1908.06569","kind":"arxiv","version":1}},"canonical_sha256":"11102135e24476ce3bd52f9fe458e9d681a08359c64552f616331c215b549a24","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11102135e24476ce3bd52f9fe458e9d681a08359c64552f616331c215b549a24","first_computed_at":"2026-07-04T23:58:17.294043Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:58:17.294043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ev0odO1ovgi2yXZzLgtJzhUxallRcxrbaRAg9v5LWJO1gbr5zvA2FnTQkEKnRoUmShbh6zoJHfwi+AN+wLeBw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:58:17.294471Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06569","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f15425d49d6bac636d840b51592955db956f4bff88eb36e1ae5c1df48448e8e8","sha256:50f442bf4502bb7535fbf0509ec61359c721aeda910d5dd8a3312334a9f67cc4"],"state_sha256":"07f7a87d4ec881d4632273b76d1a45ba53e2b162684178f1da5a667d26ebbe8b"}