{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VYUD67HDOKJHWH3ZYOR3XTXBGE","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":"9e13ce3e7799f7dc3cb26220921f10cfa8a64396dad1e7b23b123e06b7962020","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-14T12:53:50Z","title_canon_sha256":"d454ee1cd8ddae4466efc9d6cafb4342ae1321ea1314792f44b5b4523f56c4f2"},"schema_version":"1.0","source":{"id":"1208.2850","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2850","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2850v1","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2850","created_at":"2026-05-18T03:48:47Z"},{"alias_kind":"pith_short_12","alias_value":"VYUD67HDOKJH","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VYUD67HDOKJHWH3Z","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VYUD67HD","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:61e40548e2c350faed3853341b3dec928e3bcd38cfbdf1e02bc0cdeaf61727e7","target":"graph","created_at":"2026-05-18T03:48:47Z","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 Invar effect in ferromagnetic Fe-Ni, Fe-Pt, and Fe-Pd alloys is investigated theoretically by means of a computationally efficient scheme. The procedure can be divided into two stages: study of magnetism and calculations of structural properties. In the first stage, an Ising model is considered and fractions of Fe moments which point up as a function of temperature are determined. In the second stage, density-functional theory calculations are performed to evaluate free energies of alloys in partially disordered local moment states as a function of lattice constant for various temperatures","authors_text":"C. A. Hooley, F. Liot","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-14T12:53:50Z","title":"Numerical Simulations of the Invar Effect in Fe-Ni, Fe-Pt, and Fe-Pd Ferromagnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2850","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:b2f34c897813818dd32b4d937a07a0ae568e8c2118943e4657fcbadf99217f9e","target":"record","created_at":"2026-05-18T03:48:47Z","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":"9e13ce3e7799f7dc3cb26220921f10cfa8a64396dad1e7b23b123e06b7962020","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-08-14T12:53:50Z","title_canon_sha256":"d454ee1cd8ddae4466efc9d6cafb4342ae1321ea1314792f44b5b4523f56c4f2"},"schema_version":"1.0","source":{"id":"1208.2850","kind":"arxiv","version":1}},"canonical_sha256":"ae283f7ce372927b1f79c3a3bbcee1312c97435822384b41d5fc0f4b316bb838","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae283f7ce372927b1f79c3a3bbcee1312c97435822384b41d5fc0f4b316bb838","first_computed_at":"2026-05-18T03:48:47.076050Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:47.076050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+K8Vd1KnBuZrAMsZoioU99vfEsdU42ZlpcudZYfVNA3AJqboJyudTuFl1lSCTNLoqfeVAhW0UkE4qvVlUackAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:47.076661Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.2850","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2f34c897813818dd32b4d937a07a0ae568e8c2118943e4657fcbadf99217f9e","sha256:61e40548e2c350faed3853341b3dec928e3bcd38cfbdf1e02bc0cdeaf61727e7"],"state_sha256":"0c2aeed1184ac45895950b184e8c6213d5fa3d67860588c2830037aca0739759"}