{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:GD5NCTCURPYUO6SH5CJI6ZW6FL","short_pith_number":"pith:GD5NCTCU","canonical_record":{"source":{"id":"cond-mat/0311240","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2003-11-11T15:34:10Z","cross_cats_sorted":[],"title_canon_sha256":"5d304af6048fe9cd7b6691927ee13c3ea3d6b9b6cc643d5b82b2d1306bc946b0","abstract_canon_sha256":"9ee7ba113b56eafeb9d7f7ae500b16673496b33fcd93ecbc32dd88bcda83268f"},"schema_version":"1.0"},"canonical_sha256":"30fad14c548bf1477a47e8928f66de2afad1da3a6ca9f8dce72c8b3f83f2ee9c","source":{"kind":"arxiv","id":"cond-mat/0311240","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0311240","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0311240v2","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0311240","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"GD5NCTCURPYU","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"GD5NCTCURPYUO6SH","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"GD5NCTCU","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:GD5NCTCURPYUO6SH5CJI6ZW6FL","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0311240","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2003-11-11T15:34:10Z","cross_cats_sorted":[],"title_canon_sha256":"5d304af6048fe9cd7b6691927ee13c3ea3d6b9b6cc643d5b82b2d1306bc946b0","abstract_canon_sha256":"9ee7ba113b56eafeb9d7f7ae500b16673496b33fcd93ecbc32dd88bcda83268f"},"schema_version":"1.0"},"canonical_sha256":"30fad14c548bf1477a47e8928f66de2afad1da3a6ca9f8dce72c8b3f83f2ee9c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:54.874204Z","signature_b64":"IhfmLF2Q9AdiA8XddeurhOCNDxr2vSVaq66CYeYqtiMWYSHd7SwVkqksMjOV42jVR2tZllTx44llnyt3HCLfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30fad14c548bf1477a47e8928f66de2afad1da3a6ca9f8dce72c8b3f83f2ee9c","last_reissued_at":"2026-05-18T01:06:54.873542Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:54.873542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0311240","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GBzrmw/TAzQf6SXf49buc2HdONA8SbD9Wzn7bd+nMeGwAwacW13YN6HuErBfpFi89s/Yg9QnKXVrYNzV7/sYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:48:02.793650Z"},"content_sha256":"24442a72a7264db70de92535da35ba2a661896b0d54008e968618a30fcf11964","schema_version":"1.0","event_id":"sha256:24442a72a7264db70de92535da35ba2a661896b0d54008e968618a30fcf11964"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:GD5NCTCURPYUO6SH5CJI6ZW6FL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles study of the electrooptic effect in ferroelectric oxides","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Marek Veithen, Philippe Ghosez, Xavier Gonze","submitted_at":"2003-11-11T15:34:10Z","abstract_excerpt":"We present a method to compute the electrooptic tensor from first principles, explicitly taking into account the electronic, ionic and piezoelectric contributions. It allows us to study the non-linear optic behavior of three ferroelectric ABO_3 compounds : LiNbO_3, BaTiO_3 and PbTiO_3. Our calculations reveal the dominant contribution of the soft mode to the electrooptic coefficients in LiNbO_3 and BaTiO_3 and identify the coupling between the electric field and the polar atomic displacements along the B-O chains as the origin of the large electrooptic response in these compounds."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0311240","kind":"arxiv","version":2},"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":"2026-05-18T01:06:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1KEoRaO+TuMFZWLbfj3L31LG77H366v9VHYJCWphhe+67w8w9SFQ35gxZkpx32/TlIDq0myZg7btWWrcDmPDDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:48:02.793996Z"},"content_sha256":"b3fee1eb76d915de20b387461ca518d71bd0c81a8bd076ed81de9bea31b2ae81","schema_version":"1.0","event_id":"sha256:b3fee1eb76d915de20b387461ca518d71bd0c81a8bd076ed81de9bea31b2ae81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/bundle.json","state_url":"https://pith.science/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/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":"2026-06-01T12:48:02Z","links":{"resolver":"https://pith.science/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL","bundle":"https://pith.science/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/bundle.json","state":"https://pith.science/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GD5NCTCURPYUO6SH5CJI6ZW6FL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:GD5NCTCURPYUO6SH5CJI6ZW6FL","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":"9ee7ba113b56eafeb9d7f7ae500b16673496b33fcd93ecbc32dd88bcda83268f","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2003-11-11T15:34:10Z","title_canon_sha256":"5d304af6048fe9cd7b6691927ee13c3ea3d6b9b6cc643d5b82b2d1306bc946b0"},"schema_version":"1.0","source":{"id":"cond-mat/0311240","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0311240","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0311240v2","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0311240","created_at":"2026-05-18T01:06:54Z"},{"alias_kind":"pith_short_12","alias_value":"GD5NCTCURPYU","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"GD5NCTCURPYUO6SH","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"GD5NCTCU","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:b3fee1eb76d915de20b387461ca518d71bd0c81a8bd076ed81de9bea31b2ae81","target":"graph","created_at":"2026-05-18T01:06:54Z","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 present a method to compute the electrooptic tensor from first principles, explicitly taking into account the electronic, ionic and piezoelectric contributions. It allows us to study the non-linear optic behavior of three ferroelectric ABO_3 compounds : LiNbO_3, BaTiO_3 and PbTiO_3. Our calculations reveal the dominant contribution of the soft mode to the electrooptic coefficients in LiNbO_3 and BaTiO_3 and identify the coupling between the electric field and the polar atomic displacements along the B-O chains as the origin of the large electrooptic response in these compounds.","authors_text":"Marek Veithen, Philippe Ghosez, Xavier Gonze","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2003-11-11T15:34:10Z","title":"First-principles study of the electrooptic effect in ferroelectric oxides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0311240","kind":"arxiv","version":2},"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":"sha256:24442a72a7264db70de92535da35ba2a661896b0d54008e968618a30fcf11964","target":"record","created_at":"2026-05-18T01:06:54Z","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":"9ee7ba113b56eafeb9d7f7ae500b16673496b33fcd93ecbc32dd88bcda83268f","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2003-11-11T15:34:10Z","title_canon_sha256":"5d304af6048fe9cd7b6691927ee13c3ea3d6b9b6cc643d5b82b2d1306bc946b0"},"schema_version":"1.0","source":{"id":"cond-mat/0311240","kind":"arxiv","version":2}},"canonical_sha256":"30fad14c548bf1477a47e8928f66de2afad1da3a6ca9f8dce72c8b3f83f2ee9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30fad14c548bf1477a47e8928f66de2afad1da3a6ca9f8dce72c8b3f83f2ee9c","first_computed_at":"2026-05-18T01:06:54.873542Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:54.873542Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IhfmLF2Q9AdiA8XddeurhOCNDxr2vSVaq66CYeYqtiMWYSHd7SwVkqksMjOV42jVR2tZllTx44llnyt3HCLfCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:54.874204Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0311240","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24442a72a7264db70de92535da35ba2a661896b0d54008e968618a30fcf11964","sha256:b3fee1eb76d915de20b387461ca518d71bd0c81a8bd076ed81de9bea31b2ae81"],"state_sha256":"802acfff171c2a893ca95c4c3128f6d8f2583b375068a9e1bf87c8fe63edac73"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/b7FVDFS7RMFnD7/VpDjb6Pursw+2dmO7FXD3jwjXG9ETP3OBdSBZ9GMCFEtVsxOZgeTZSuRQKnGK8DwY9trAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T12:48:02.795947Z","bundle_sha256":"2e03a40ed768649aac7a4649275856b9a206ce7b9657914c9ae751e1f66f3333"}}