{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:Z6N7YNA7PPVKKG2DZHRW5IPBDO","short_pith_number":"pith:Z6N7YNA7","canonical_record":{"source":{"id":"1408.5009","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-21T14:11:53Z","cross_cats_sorted":[],"title_canon_sha256":"e59168ef19fc334b332ccd75a17c9e6009018348923515373c3a748fb422f12d","abstract_canon_sha256":"2e190509d5fd6ef96e82a782de8c4e7d44d97008618a46bb1ddf8aeb4914be64"},"schema_version":"1.0"},"canonical_sha256":"cf9bfc341f7beaa51b43c9e36ea1e11ba6a7c7ac735954751a71a3bbb5407edf","source":{"kind":"arxiv","id":"1408.5009","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5009","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5009v4","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5009","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"Z6N7YNA7PPVK","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z6N7YNA7PPVKKG2D","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z6N7YNA7","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:Z6N7YNA7PPVKKG2DZHRW5IPBDO","target":"record","payload":{"canonical_record":{"source":{"id":"1408.5009","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-21T14:11:53Z","cross_cats_sorted":[],"title_canon_sha256":"e59168ef19fc334b332ccd75a17c9e6009018348923515373c3a748fb422f12d","abstract_canon_sha256":"2e190509d5fd6ef96e82a782de8c4e7d44d97008618a46bb1ddf8aeb4914be64"},"schema_version":"1.0"},"canonical_sha256":"cf9bfc341f7beaa51b43c9e36ea1e11ba6a7c7ac735954751a71a3bbb5407edf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:47.593101Z","signature_b64":"NYTdDGGC84JjG7Q9z5JSSEYVG6IC7L7rrJyzwdkq0hKvCuINU89FoVm86kZUhmTXwumAm1UNwg30s0ksQuRPAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf9bfc341f7beaa51b43c9e36ea1e11ba6a7c7ac735954751a71a3bbb5407edf","last_reissued_at":"2026-05-18T01:25:47.592651Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:47.592651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.5009","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RFUPy6t/Lur4RuFH8FQxxkvMpWtyBWAGmmMw1gvo1AIEvZC3Xy0IIEFohWOv5BpZPbqAphO19gP6vhwhXrQ+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:08:11.439982Z"},"content_sha256":"c05e3016735fa6999693038d349c264e0dad167665369fbd9bc013e54c739e3a","schema_version":"1.0","event_id":"sha256:c05e3016735fa6999693038d349c264e0dad167665369fbd9bc013e54c739e3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:Z6N7YNA7PPVKKG2DZHRW5IPBDO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct evaluation of free energy for large system through structure integration approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kazuhito Takeuchi, Koretaka Yuge, Ryohei Tanaka","submitted_at":"2014-08-21T14:11:53Z","abstract_excerpt":"We propose a new approach, \"structure integration\", enabling direct evaluation of configurational free energy for large systems. The present approach is based on the statistical information of lattice. Through first-principles-based simulation, we find that the present method not only evaluates configurational free energy accurately in disorder states above critical temperature but also clarify importance of lattice to determine configurational free energy at high temperature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5009","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:25:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yNj/829wn4JZDy0yKkzDptpjehj24DEbMm2BMXDqh/HYghYePTcER2SDDUgASrkDOjLJZ8caUQeH0LwdVlPLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:08:11.440727Z"},"content_sha256":"f19feebd614132b1a9484b7e335740f145a8e4728169bb77eedfc7f5e20d7373","schema_version":"1.0","event_id":"sha256:f19feebd614132b1a9484b7e335740f145a8e4728169bb77eedfc7f5e20d7373"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/bundle.json","state_url":"https://pith.science/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T01:08:11Z","links":{"resolver":"https://pith.science/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO","bundle":"https://pith.science/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/bundle.json","state":"https://pith.science/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z6N7YNA7PPVKKG2DZHRW5IPBDO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:Z6N7YNA7PPVKKG2DZHRW5IPBDO","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":"2e190509d5fd6ef96e82a782de8c4e7d44d97008618a46bb1ddf8aeb4914be64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-21T14:11:53Z","title_canon_sha256":"e59168ef19fc334b332ccd75a17c9e6009018348923515373c3a748fb422f12d"},"schema_version":"1.0","source":{"id":"1408.5009","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5009","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5009v4","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5009","created_at":"2026-05-18T01:25:47Z"},{"alias_kind":"pith_short_12","alias_value":"Z6N7YNA7PPVK","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z6N7YNA7PPVKKG2D","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z6N7YNA7","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:f19feebd614132b1a9484b7e335740f145a8e4728169bb77eedfc7f5e20d7373","target":"graph","created_at":"2026-05-18T01:25:47Z","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":"We propose a new approach, \"structure integration\", enabling direct evaluation of configurational free energy for large systems. The present approach is based on the statistical information of lattice. Through first-principles-based simulation, we find that the present method not only evaluates configurational free energy accurately in disorder states above critical temperature but also clarify importance of lattice to determine configurational free energy at high temperature.","authors_text":"Kazuhito Takeuchi, Koretaka Yuge, Ryohei Tanaka","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-21T14:11:53Z","title":"Direct evaluation of free energy for large system through structure integration approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5009","kind":"arxiv","version":4},"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:c05e3016735fa6999693038d349c264e0dad167665369fbd9bc013e54c739e3a","target":"record","created_at":"2026-05-18T01:25:47Z","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":"2e190509d5fd6ef96e82a782de8c4e7d44d97008618a46bb1ddf8aeb4914be64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-21T14:11:53Z","title_canon_sha256":"e59168ef19fc334b332ccd75a17c9e6009018348923515373c3a748fb422f12d"},"schema_version":"1.0","source":{"id":"1408.5009","kind":"arxiv","version":4}},"canonical_sha256":"cf9bfc341f7beaa51b43c9e36ea1e11ba6a7c7ac735954751a71a3bbb5407edf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf9bfc341f7beaa51b43c9e36ea1e11ba6a7c7ac735954751a71a3bbb5407edf","first_computed_at":"2026-05-18T01:25:47.592651Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:47.592651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NYTdDGGC84JjG7Q9z5JSSEYVG6IC7L7rrJyzwdkq0hKvCuINU89FoVm86kZUhmTXwumAm1UNwg30s0ksQuRPAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:47.593101Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.5009","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c05e3016735fa6999693038d349c264e0dad167665369fbd9bc013e54c739e3a","sha256:f19feebd614132b1a9484b7e335740f145a8e4728169bb77eedfc7f5e20d7373"],"state_sha256":"a0ef57790239638c9ffa3cd5311c0eb9d236484b2613fda76df4b98de509f544"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qGtDIXq9MkvPzw80CzCc0aVAIvQdUQFjw0ZConh+7dpGDkyI7WYh8gjg7jqoPuF7LhJgqo64RtLf0kHiimXhAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T01:08:11.444905Z","bundle_sha256":"ecba5a2e3079301646851db638fb7c2443832e92fa63011582962809b666dfc0"}}