{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:R3LC3Q27GYSQXARBTSOHR5JXP7","short_pith_number":"pith:R3LC3Q27","canonical_record":{"source":{"id":"2007.05903","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-07-12T03:56:27Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"title_canon_sha256":"ce0841069e44e2261e51f531307a670e632508d8a65572273879d0d80e823c22","abstract_canon_sha256":"c0a7d45a0aa11b843476e5056eab5301a872056cdac4a43a022092ea0dd84e33"},"schema_version":"1.0"},"canonical_sha256":"8ed62dc35f36250b82219c9c78f5377fedbee8f9d468763fc6a6e74376873bb8","source":{"kind":"arxiv","id":"2007.05903","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.05903","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"arxiv_version","alias_value":"2007.05903v1","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.05903","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_12","alias_value":"R3LC3Q27GYSQ","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_16","alias_value":"R3LC3Q27GYSQXARB","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_8","alias_value":"R3LC3Q27","created_at":"2026-07-05T01:18:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:R3LC3Q27GYSQXARBTSOHR5JXP7","target":"record","payload":{"canonical_record":{"source":{"id":"2007.05903","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-07-12T03:56:27Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"title_canon_sha256":"ce0841069e44e2261e51f531307a670e632508d8a65572273879d0d80e823c22","abstract_canon_sha256":"c0a7d45a0aa11b843476e5056eab5301a872056cdac4a43a022092ea0dd84e33"},"schema_version":"1.0"},"canonical_sha256":"8ed62dc35f36250b82219c9c78f5377fedbee8f9d468763fc6a6e74376873bb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:18:07.921553Z","signature_b64":"bN2ToHI36AkaNSj824C3Tn4XIW1nFqu4h5tSOOxGRDcbyDsZfShOtxxuKD1/MjLPUrB9t5WQnPM22ka0mtW0AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8ed62dc35f36250b82219c9c78f5377fedbee8f9d468763fc6a6e74376873bb8","last_reissued_at":"2026-07-05T01:18:07.921118Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:18:07.921118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.05903","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":"2026-07-05T01:18:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zLsqNxab2YPWExrJ7bKTJtIM6WMvAK5NPTbOar1NhM4I6GgOh5pjVvkReYc8VX2ZmU7K/XshPUgGH3EJjj8JAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:50:37.749543Z"},"content_sha256":"dc4f4515f7a8d89ec1665bc2346f748bbb28671292b462640d0cbd7fb34f60c0","schema_version":"1.0","event_id":"sha256:dc4f4515f7a8d89ec1665bc2346f748bbb28671292b462640d0cbd7fb34f60c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:R3LC3Q27GYSQXARBTSOHR5JXP7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Artificial two-dimensional polar metal by charge transfer to a ferroelectric insulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Ariando, C. G. Li, C. J. Li, H. J. Wu, H. Wang, J. S. Chen, J. X. Xiao, J. Zhou, K. Han, K. Y. Zeng, M. S. Li, P. Yang, R. Guo, S. J. Chua, S. J. Pennycook, S. W. Zeng, T. Venkatesan, W. M. Lv, W. X. Zhou, Y. P. Feng, Y. Zhang, Z. Huang, Z. S. Lim","submitted_at":"2020-07-12T03:56:27Z","abstract_excerpt":"Integrating multiple properties in a single system is crucial for the continuous developments in electronic devices. However, some physical properties are mutually exclusive in nature. Here, we report the coexistence of two seemingly mutually exclusive properties-polarity and two-dimensional conductivity-in ferroelectric Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ thin films at the LaAlO$_3$/Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ interface at room temperature. The polarity of a ~3.2 nm Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ thin film is preserved with a two-dimensional mobile carrier density of ~0.05 electron per unit cell. We sho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.05903","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/2007.05903/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":"2026-07-05T01:18:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tOl8V8gcm2yWt3QjsRBd2r1liSyaFHuzEzJFk2Bst2LSUIKvsp+7DALNfHKcA4QExBMRT27AQ+v36l/sbfA+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T17:50:37.751387Z"},"content_sha256":"dc6dbf98bd72d970b22ec4f675cdb8e0b9fa43fd77be06dfbea18c6ab87b8382","schema_version":"1.0","event_id":"sha256:dc6dbf98bd72d970b22ec4f675cdb8e0b9fa43fd77be06dfbea18c6ab87b8382"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/bundle.json","state_url":"https://pith.science/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/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":"2026-08-04T17:50:37Z","links":{"resolver":"https://pith.science/pith/R3LC3Q27GYSQXARBTSOHR5JXP7","bundle":"https://pith.science/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/bundle.json","state":"https://pith.science/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R3LC3Q27GYSQXARBTSOHR5JXP7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:R3LC3Q27GYSQXARBTSOHR5JXP7","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":"c0a7d45a0aa11b843476e5056eab5301a872056cdac4a43a022092ea0dd84e33","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-07-12T03:56:27Z","title_canon_sha256":"ce0841069e44e2261e51f531307a670e632508d8a65572273879d0d80e823c22"},"schema_version":"1.0","source":{"id":"2007.05903","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.05903","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"arxiv_version","alias_value":"2007.05903v1","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.05903","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_12","alias_value":"R3LC3Q27GYSQ","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_16","alias_value":"R3LC3Q27GYSQXARB","created_at":"2026-07-05T01:18:07Z"},{"alias_kind":"pith_short_8","alias_value":"R3LC3Q27","created_at":"2026-07-05T01:18:07Z"}],"graph_snapshots":[{"event_id":"sha256:dc6dbf98bd72d970b22ec4f675cdb8e0b9fa43fd77be06dfbea18c6ab87b8382","target":"graph","created_at":"2026-07-05T01:18:07Z","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/2007.05903/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Integrating multiple properties in a single system is crucial for the continuous developments in electronic devices. However, some physical properties are mutually exclusive in nature. Here, we report the coexistence of two seemingly mutually exclusive properties-polarity and two-dimensional conductivity-in ferroelectric Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ thin films at the LaAlO$_3$/Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ interface at room temperature. The polarity of a ~3.2 nm Ba$_{0.2}$Sr$_{0.8}$TiO$_3$ thin film is preserved with a two-dimensional mobile carrier density of ~0.05 electron per unit cell. We sho","authors_text":"A. Ariando, C. G. Li, C. J. Li, H. J. Wu, H. Wang, J. S. Chen, J. X. Xiao, J. Zhou, K. Han, K. Y. Zeng, M. S. Li, P. Yang, R. Guo, S. J. Chua, S. J. Pennycook, S. W. Zeng, T. Venkatesan, W. M. Lv, W. X. Zhou, Y. P. Feng, Y. Zhang, Z. Huang, Z. S. Lim","cross_cats":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-07-12T03:56:27Z","title":"Artificial two-dimensional polar metal by charge transfer to a ferroelectric insulator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.05903","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:dc4f4515f7a8d89ec1665bc2346f748bbb28671292b462640d0cbd7fb34f60c0","target":"record","created_at":"2026-07-05T01:18:07Z","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":"c0a7d45a0aa11b843476e5056eab5301a872056cdac4a43a022092ea0dd84e33","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-07-12T03:56:27Z","title_canon_sha256":"ce0841069e44e2261e51f531307a670e632508d8a65572273879d0d80e823c22"},"schema_version":"1.0","source":{"id":"2007.05903","kind":"arxiv","version":1}},"canonical_sha256":"8ed62dc35f36250b82219c9c78f5377fedbee8f9d468763fc6a6e74376873bb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ed62dc35f36250b82219c9c78f5377fedbee8f9d468763fc6a6e74376873bb8","first_computed_at":"2026-07-05T01:18:07.921118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:07.921118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bN2ToHI36AkaNSj824C3Tn4XIW1nFqu4h5tSOOxGRDcbyDsZfShOtxxuKD1/MjLPUrB9t5WQnPM22ka0mtW0AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:07.921553Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.05903","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc4f4515f7a8d89ec1665bc2346f748bbb28671292b462640d0cbd7fb34f60c0","sha256:dc6dbf98bd72d970b22ec4f675cdb8e0b9fa43fd77be06dfbea18c6ab87b8382"],"state_sha256":"638aa9b700b4ff8d09fa930d4223772054c6f2f538f7409017e7cb1fcc84a007"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cOQuYnfj1gOktskv/W08NLtglipXsc26ilxhYwMitl93zC1zSKQwweW8pHecSWlcz+UIvvZtFLZES1YMnGhQBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T17:50:37.843526Z","bundle_sha256":"dc8deb0b451c0b1a57e9f5149c9cf77887dca95235352442ff08397a2e75e191"}}