{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PLJUWJMI7EF33OIA4H4TJFBEJB","short_pith_number":"pith:PLJUWJMI","canonical_record":{"source":{"id":"2505.17991","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-23T14:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"99b9dcaaa44171e11f1cc9257b32efa766bf5e0a69b5cc1f54c8f747aa23f975","abstract_canon_sha256":"4acc7b91444945354f60f41f704336b19ca1d6f2db423016b4dd67d7a1eb9a45"},"schema_version":"1.0"},"canonical_sha256":"7ad34b2588f90bbdb900e1f9349424485ee81380b9c0a53ae8d89c971eae5cc6","source":{"kind":"arxiv","id":"2505.17991","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17991","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17991v1","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17991","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_12","alias_value":"PLJUWJMI7EF3","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_16","alias_value":"PLJUWJMI7EF33OIA","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_8","alias_value":"PLJUWJMI","created_at":"2026-07-05T11:08:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PLJUWJMI7EF33OIA4H4TJFBEJB","target":"record","payload":{"canonical_record":{"source":{"id":"2505.17991","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-23T14:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"99b9dcaaa44171e11f1cc9257b32efa766bf5e0a69b5cc1f54c8f747aa23f975","abstract_canon_sha256":"4acc7b91444945354f60f41f704336b19ca1d6f2db423016b4dd67d7a1eb9a45"},"schema_version":"1.0"},"canonical_sha256":"7ad34b2588f90bbdb900e1f9349424485ee81380b9c0a53ae8d89c971eae5cc6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:08:34.833253Z","signature_b64":"IVe4/SYl7m/gLoJdlDRJ8wTmfcGGMJGfNJvMwDFAquM4gpsby72JS5QFk5I0LpPYHwF4glQGGWadAac4MWj5Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ad34b2588f90bbdb900e1f9349424485ee81380b9c0a53ae8d89c971eae5cc6","last_reissued_at":"2026-07-05T11:08:34.832791Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:08:34.832791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.17991","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:08:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ho1rTy7u0xmz+Y86h3bZSx1TN2iA/xj8f5ldLagIGRTg0KzsWk1a2PqQt2DuKVYK4MZCFgKPPSg3qabxkKMiBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:51:16.741727Z"},"content_sha256":"19dc6d5a2a8187edeb882acf1fac1b6a2a28ff018a4b56b4708a274d043beb0e","schema_version":"1.0","event_id":"sha256:19dc6d5a2a8187edeb882acf1fac1b6a2a28ff018a4b56b4708a274d043beb0e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PLJUWJMI7EF33OIA4H4TJFBEJB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient local atomic cluster expansion for BaTiO$_3$ close to equilibrium","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Anna Gr\\\"unebohm, Anton Bochkarev, Lan-Tien Hsu, Matous Mrovec, Maxim N. Popov, Ralf Drautz, Yury Lysogorskiy","submitted_at":"2025-05-23T14:58:22Z","abstract_excerpt":"Barium titanate (BTO) is a representative perovskite oxide that undergoes three first-order ferroelectric phase transitions related to exceptional functional properties. In this work, we develop two atomic cluster expansion (ACE) models for BTO to reproduce fundamental properties of bulk as well as defective BTO phases. The two ACE models do not target full transferability but rather aim to examine the influence of implicit and explicit treatment of long-range Coulomb interactions. We demonstrate that both models describe equally well the temperature induced phase transitions as well as polari"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17991","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.17991/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:08:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pCk0uf/sAqESVRp3/ysYVDNUwZDs+ut1aI36YcIR1upGCOPjmbrhSiPJbDZ9rvjZ3MvZtjhBG2awrBJ97NfbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:51:16.742222Z"},"content_sha256":"a8255a6eb2a648660fe4a6df787f57bb3ea516b34556d4595cf7c3bb6b0f63d6","schema_version":"1.0","event_id":"sha256:a8255a6eb2a648660fe4a6df787f57bb3ea516b34556d4595cf7c3bb6b0f63d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/bundle.json","state_url":"https://pith.science/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/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":"2026-08-08T11:51:16Z","links":{"resolver":"https://pith.science/pith/PLJUWJMI7EF33OIA4H4TJFBEJB","bundle":"https://pith.science/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/bundle.json","state":"https://pith.science/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PLJUWJMI7EF33OIA4H4TJFBEJB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PLJUWJMI7EF33OIA4H4TJFBEJB","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":"4acc7b91444945354f60f41f704336b19ca1d6f2db423016b4dd67d7a1eb9a45","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-23T14:58:22Z","title_canon_sha256":"99b9dcaaa44171e11f1cc9257b32efa766bf5e0a69b5cc1f54c8f747aa23f975"},"schema_version":"1.0","source":{"id":"2505.17991","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17991","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17991v1","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17991","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_12","alias_value":"PLJUWJMI7EF3","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_16","alias_value":"PLJUWJMI7EF33OIA","created_at":"2026-07-05T11:08:34Z"},{"alias_kind":"pith_short_8","alias_value":"PLJUWJMI","created_at":"2026-07-05T11:08:34Z"}],"graph_snapshots":[{"event_id":"sha256:a8255a6eb2a648660fe4a6df787f57bb3ea516b34556d4595cf7c3bb6b0f63d6","target":"graph","created_at":"2026-07-05T11:08:34Z","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/2505.17991/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Barium titanate (BTO) is a representative perovskite oxide that undergoes three first-order ferroelectric phase transitions related to exceptional functional properties. In this work, we develop two atomic cluster expansion (ACE) models for BTO to reproduce fundamental properties of bulk as well as defective BTO phases. The two ACE models do not target full transferability but rather aim to examine the influence of implicit and explicit treatment of long-range Coulomb interactions. We demonstrate that both models describe equally well the temperature induced phase transitions as well as polari","authors_text":"Anna Gr\\\"unebohm, Anton Bochkarev, Lan-Tien Hsu, Matous Mrovec, Maxim N. Popov, Ralf Drautz, Yury Lysogorskiy","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-23T14:58:22Z","title":"Efficient local atomic cluster expansion for BaTiO$_3$ close to equilibrium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17991","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":"sha256:19dc6d5a2a8187edeb882acf1fac1b6a2a28ff018a4b56b4708a274d043beb0e","target":"record","created_at":"2026-07-05T11:08:34Z","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":"4acc7b91444945354f60f41f704336b19ca1d6f2db423016b4dd67d7a1eb9a45","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-05-23T14:58:22Z","title_canon_sha256":"99b9dcaaa44171e11f1cc9257b32efa766bf5e0a69b5cc1f54c8f747aa23f975"},"schema_version":"1.0","source":{"id":"2505.17991","kind":"arxiv","version":1}},"canonical_sha256":"7ad34b2588f90bbdb900e1f9349424485ee81380b9c0a53ae8d89c971eae5cc6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ad34b2588f90bbdb900e1f9349424485ee81380b9c0a53ae8d89c971eae5cc6","first_computed_at":"2026-07-05T11:08:34.832791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:08:34.832791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IVe4/SYl7m/gLoJdlDRJ8wTmfcGGMJGfNJvMwDFAquM4gpsby72JS5QFk5I0LpPYHwF4glQGGWadAac4MWj5Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:08:34.833253Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.17991","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19dc6d5a2a8187edeb882acf1fac1b6a2a28ff018a4b56b4708a274d043beb0e","sha256:a8255a6eb2a648660fe4a6df787f57bb3ea516b34556d4595cf7c3bb6b0f63d6"],"state_sha256":"4acf413f40b013f3d6e479fc7cc7fe96be6e313bd7f2b6cda0e6f89b8d564a6d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0rMgXTfnLO2tlJNH/3TJNxVLu2WgeydK6TzoVtwHt9lOiTZAZLgrcuVjKz3QqBIzG8f2l/KJS6914X/541DpAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T11:51:16.746952Z","bundle_sha256":"7c193298aeb544a276e710fe73179c9968103e67699598c7fdd5b37909982145"}}