{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4EWE57KQO5KYRSH63RE7U5UQNU","short_pith_number":"pith:4EWE57KQ","canonical_record":{"source":{"id":"2512.14633","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-12-16T17:46:18Z","cross_cats_sorted":[],"title_canon_sha256":"749a0c5d52b312f8b077ce5316b9cb1d39ac937dc53e125823053a4e094cb2a8","abstract_canon_sha256":"1cd347495bacc70ecef498ea2efd89b29613193a93fce5ebf7dbf68bcb1bea18"},"schema_version":"1.0"},"canonical_sha256":"e12c4efd50775588c8fedc49fa76906d3808b6af60340dfe4ec93206ff904b37","source":{"kind":"arxiv","id":"2512.14633","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.14633","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"arxiv_version","alias_value":"2512.14633v1","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.14633","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_12","alias_value":"4EWE57KQO5KY","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_16","alias_value":"4EWE57KQO5KYRSH6","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_8","alias_value":"4EWE57KQ","created_at":"2026-05-21T02:04:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4EWE57KQO5KYRSH63RE7U5UQNU","target":"record","payload":{"canonical_record":{"source":{"id":"2512.14633","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-12-16T17:46:18Z","cross_cats_sorted":[],"title_canon_sha256":"749a0c5d52b312f8b077ce5316b9cb1d39ac937dc53e125823053a4e094cb2a8","abstract_canon_sha256":"1cd347495bacc70ecef498ea2efd89b29613193a93fce5ebf7dbf68bcb1bea18"},"schema_version":"1.0"},"canonical_sha256":"e12c4efd50775588c8fedc49fa76906d3808b6af60340dfe4ec93206ff904b37","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-21T02:04:56.056450Z","signature_b64":"zQTzlMMmcoN81kggngaxs1p9TZH62aSsBTp/P0C2jxyrFnpZWz7LP1ZhVoy/8QHVauQQk4GfnwWCoiFBtHEwDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e12c4efd50775588c8fedc49fa76906d3808b6af60340dfe4ec93206ff904b37","last_reissued_at":"2026-05-21T02:04:56.055539Z","signature_status":"signed_v1","first_computed_at":"2026-05-21T02:04:56.055539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.14633","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":"2026-05-21T02:04:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s16JpSE5XgK1EnNTG47nBioGpA2iBXdvSrSI+xuIhDZ9deWHZf+oV3EpP1m6zQfYMyIvIDmVBGHwjGjD2w5/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T16:13:03.506433Z"},"content_sha256":"e0744a7f3fbb6cb5132000e6f8236daec56d4d7631647a6e2c32ef474bb68de7","schema_version":"1.0","event_id":"sha256:e0744a7f3fbb6cb5132000e6f8236daec56d4d7631647a6e2c32ef474bb68de7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4EWE57KQO5KYRSH63RE7U5UQNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the origin of the unusual strain morphologies and polar Moir\\'e patterns in twisted ferroelectrics","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Charles Paillard, Laurent Bellaiche, Sergey Prosandeev","submitted_at":"2025-12-16T17:46:18Z","abstract_excerpt":"Density functional theory calculations are conducted to understand and reveal the origin of the complex shear strain morphology and of the polar Moir\\'e topological pattern recently observed in twisted BaTiO$_3$ bilayers. Our first-principles calculations, along with an original analysis of them allowing the decomposition of forces into the acoustic and optical contributions, point out to the occurrence of forces mostly acting on the {\\it acoustic-related} motions to produce the standing waves of the shear strain. Such acoustic waves naturally generate a striking self-organization of the shear"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.14633","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/2512.14633/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":"2026-05-21T02:04:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"35dLeUeH4qxPqJB64K908cZDxU2hYSqckcz7EJDesQxALnbIjHOzYIHvUrzbticASXdwRyIjza5LfKvrs9hYBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T16:13:03.507087Z"},"content_sha256":"3f7650dc50cd3d8194b70884cf5382f4cd695b6b0495b8934bd59cc967565593","schema_version":"1.0","event_id":"sha256:3f7650dc50cd3d8194b70884cf5382f4cd695b6b0495b8934bd59cc967565593"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4EWE57KQO5KYRSH63RE7U5UQNU/bundle.json","state_url":"https://pith.science/pith/4EWE57KQO5KYRSH63RE7U5UQNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4EWE57KQO5KYRSH63RE7U5UQNU/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":"2026-06-10T16:13:03Z","links":{"resolver":"https://pith.science/pith/4EWE57KQO5KYRSH63RE7U5UQNU","bundle":"https://pith.science/pith/4EWE57KQO5KYRSH63RE7U5UQNU/bundle.json","state":"https://pith.science/pith/4EWE57KQO5KYRSH63RE7U5UQNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4EWE57KQO5KYRSH63RE7U5UQNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4EWE57KQO5KYRSH63RE7U5UQNU","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":"1cd347495bacc70ecef498ea2efd89b29613193a93fce5ebf7dbf68bcb1bea18","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-12-16T17:46:18Z","title_canon_sha256":"749a0c5d52b312f8b077ce5316b9cb1d39ac937dc53e125823053a4e094cb2a8"},"schema_version":"1.0","source":{"id":"2512.14633","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.14633","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"arxiv_version","alias_value":"2512.14633v1","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.14633","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_12","alias_value":"4EWE57KQO5KY","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_16","alias_value":"4EWE57KQO5KYRSH6","created_at":"2026-05-21T02:04:56Z"},{"alias_kind":"pith_short_8","alias_value":"4EWE57KQ","created_at":"2026-05-21T02:04:56Z"}],"graph_snapshots":[{"event_id":"sha256:3f7650dc50cd3d8194b70884cf5382f4cd695b6b0495b8934bd59cc967565593","target":"graph","created_at":"2026-05-21T02:04:56Z","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/2512.14633/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Density functional theory calculations are conducted to understand and reveal the origin of the complex shear strain morphology and of the polar Moir\\'e topological pattern recently observed in twisted BaTiO$_3$ bilayers. Our first-principles calculations, along with an original analysis of them allowing the decomposition of forces into the acoustic and optical contributions, point out to the occurrence of forces mostly acting on the {\\it acoustic-related} motions to produce the standing waves of the shear strain. Such acoustic waves naturally generate a striking self-organization of the shear","authors_text":"Charles Paillard, Laurent Bellaiche, Sergey Prosandeev","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-12-16T17:46:18Z","title":"On the origin of the unusual strain morphologies and polar Moir\\'e patterns in twisted ferroelectrics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.14633","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:e0744a7f3fbb6cb5132000e6f8236daec56d4d7631647a6e2c32ef474bb68de7","target":"record","created_at":"2026-05-21T02:04:56Z","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":"1cd347495bacc70ecef498ea2efd89b29613193a93fce5ebf7dbf68bcb1bea18","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2025-12-16T17:46:18Z","title_canon_sha256":"749a0c5d52b312f8b077ce5316b9cb1d39ac937dc53e125823053a4e094cb2a8"},"schema_version":"1.0","source":{"id":"2512.14633","kind":"arxiv","version":1}},"canonical_sha256":"e12c4efd50775588c8fedc49fa76906d3808b6af60340dfe4ec93206ff904b37","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e12c4efd50775588c8fedc49fa76906d3808b6af60340dfe4ec93206ff904b37","first_computed_at":"2026-05-21T02:04:56.055539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T02:04:56.055539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zQTzlMMmcoN81kggngaxs1p9TZH62aSsBTp/P0C2jxyrFnpZWz7LP1ZhVoy/8QHVauQQk4GfnwWCoiFBtHEwDg==","signature_status":"signed_v1","signed_at":"2026-05-21T02:04:56.056450Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.14633","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0744a7f3fbb6cb5132000e6f8236daec56d4d7631647a6e2c32ef474bb68de7","sha256:3f7650dc50cd3d8194b70884cf5382f4cd695b6b0495b8934bd59cc967565593"],"state_sha256":"8e20a6ab33f4e86d1a2ce180d37dd60b3858bb01ad2853b4214623a127de97dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mGCrdUaBoC/qPxJMRIbrpEvNl8Lu5V/DNSdSUZmdnd7rX/zbbMWLjNKQZnmVAVStXHDHgaPC5hewDs9aC0LcBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T16:13:03.511100Z","bundle_sha256":"632264ce05e5c23eef505309aa626a68fd8fe11045abacdffc3da10ae092df7a"}}