{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:G7E3BCCOH7GOUMH54VSFWRELUI","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":"536c55719cc969cbbb8d90c0b0c7f30233db958ec3bc4d02db90e5348b3cd6f4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-09T15:37:57Z","title_canon_sha256":"a8fb58e46f138b5a72637b1fe770194a92b8fd4c245e868adb36a6031d40fd49"},"schema_version":"1.0","source":{"id":"2607.08608","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.08608","created_at":"2026-07-10T01:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"2607.08608v1","created_at":"2026-07-10T01:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.08608","created_at":"2026-07-10T01:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"G7E3BCCOH7GO","created_at":"2026-07-10T01:19:55Z"},{"alias_kind":"pith_short_16","alias_value":"G7E3BCCOH7GOUMH5","created_at":"2026-07-10T01:19:55Z"},{"alias_kind":"pith_short_8","alias_value":"G7E3BCCO","created_at":"2026-07-10T01:19:55Z"}],"graph_snapshots":[{"event_id":"sha256:4563859f4009c5d4914a048a6b8f738a6e4f8cc489d2087742ed45e0eb6f5ac1","target":"graph","created_at":"2026-07-10T01:19:55Z","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/2607.08608/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate evaluation of Gibbs free energies is essential for constructing pressure-temperature phase diagrams. Conventional methods based on the quasi-harmonic approximation (QHA) require phonon spectra at many volume points and are therefore expensive in general. Here we develop an efficient method based on the interpolation of a few ab initio data points for Gibbs free energy evaluation under volume compression. Phonon spectra are calculated only at selected volumes. An effective Gruneisen parameter derived from the zero-point energy (ZPE) reconstructs the static-ZPE branch, while piecewise m","authors_text":"Yong Yang, Yoshiyuki Kawazoe, Zhiyuan Gao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-09T15:37:57Z","title":"An Efficient Method for Gibbs Free Energy Evaluation under Volume Compression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.08608","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":"sha256:14ff9ef21e3e49905a6da61eff39f59800cffb04afadce810df97f8e605ef826","target":"record","created_at":"2026-07-10T01:19:55Z","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":"536c55719cc969cbbb8d90c0b0c7f30233db958ec3bc4d02db90e5348b3cd6f4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-09T15:37:57Z","title_canon_sha256":"a8fb58e46f138b5a72637b1fe770194a92b8fd4c245e868adb36a6031d40fd49"},"schema_version":"1.0","source":{"id":"2607.08608","kind":"arxiv","version":1}},"canonical_sha256":"37c9b0884e3fccea30fde5645b448ba202981d36ab3524a71a480634ac3cd230","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37c9b0884e3fccea30fde5645b448ba202981d36ab3524a71a480634ac3cd230","first_computed_at":"2026-07-10T01:19:55.286339Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-10T01:19:55.286339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lbPct+37gk3LddhpfHfjlZwsVE+mCtVJSSeR0TO+ltnWkP/KvPG6e/hAe5e1BSOIxZub81bQ+s5eBqjhl/8tDg==","signature_status":"signed_v1","signed_at":"2026-07-10T01:19:55.286879Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.08608","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14ff9ef21e3e49905a6da61eff39f59800cffb04afadce810df97f8e605ef826","sha256:4563859f4009c5d4914a048a6b8f738a6e4f8cc489d2087742ed45e0eb6f5ac1"],"state_sha256":"69f7681c6a497fac7b9cfa1a30c0cc16a583443af3ae5e67ee86351f826bf9d8"}