{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:DJHHHNYRLSVS22JH3BC4UWPDDN","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":"74d8087d21ae32ec7114cb12cd0087605ffe3fa73c694087435fdddc5ee5d28b","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2000-02-14T18:44:26Z","title_canon_sha256":"e6378dc12e32c768633bc17c26f47058e10207834fad378adf5c941f94ec101c"},"schema_version":"1.0","source":{"id":"cond-mat/0002208","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0002208","created_at":"2026-05-18T01:40:09Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0002208v1","created_at":"2026-05-18T01:40:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0002208","created_at":"2026-05-18T01:40:09Z"},{"alias_kind":"pith_short_12","alias_value":"DJHHHNYRLSVS","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DJHHHNYRLSVS22JH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DJHHHNYR","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:99a21b8b39346e933c0689958ae20289ddeadd4076e778c80e99dc2a84a6dbb2","target":"graph","created_at":"2026-05-18T01:40:09Z","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":"We present a new technique which allows the fully {\\em ab initio} calculation of the chemical potential of a substitutional impurity in a high-temperature crystal, including harmonic and anharmonic lattice vibrations. The technique uses the combination of thermodynamic integration and reference models developed recently for the {\\em ab initio} calculation of the free energy of liquids and anharmonic solids. We apply the technique to the case of the substitutional oxygen impurity in h.c.p. iron under Earth's core conditions, which earlier static {\\em ab initio} calculations indicated to be ther","authors_text":"D. Alfe`, G. D. Price, M. J. Gillan","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2000-02-14T18:44:26Z","title":"Thermodynamic stability of Fe/O solid solution at inner-core conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0002208","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":"sha256:61ab7be59edbdd964e43ec691bd84bead7c5ce4d5ca4040f67634f8815e90798","target":"record","created_at":"2026-05-18T01:40:09Z","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":"74d8087d21ae32ec7114cb12cd0087605ffe3fa73c694087435fdddc5ee5d28b","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2000-02-14T18:44:26Z","title_canon_sha256":"e6378dc12e32c768633bc17c26f47058e10207834fad378adf5c941f94ec101c"},"schema_version":"1.0","source":{"id":"cond-mat/0002208","kind":"arxiv","version":1}},"canonical_sha256":"1a4e73b7115cab2d6927d845ca59e31b4072abde006021cccfbbc8a4eaaca827","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a4e73b7115cab2d6927d845ca59e31b4072abde006021cccfbbc8a4eaaca827","first_computed_at":"2026-05-18T01:40:09.100932Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:09.100932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oajHxYrbOR/fDhceIbhlAAHu9cpETm4W8neKNKg7g6Y64GmrtKb72GBIBM60d6X7LRr9sKqGAn6cCitaJryFAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:09.101716Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0002208","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61ab7be59edbdd964e43ec691bd84bead7c5ce4d5ca4040f67634f8815e90798","sha256:99a21b8b39346e933c0689958ae20289ddeadd4076e778c80e99dc2a84a6dbb2"],"state_sha256":"9030725c060dc3abb48e4f64c50ffcf847b6f8e814b17feb6587c074dc14505f"}