{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XA5E2VMMSLY6ASUH5EY4JFVBTG","short_pith_number":"pith:XA5E2VMM","canonical_record":{"source":{"id":"1905.02931","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-08T06:51:19Z","cross_cats_sorted":[],"title_canon_sha256":"15889ef486eaa60107ba254c78c5c25cd4734f5fa0316fd8ea8861b7f1a823a4","abstract_canon_sha256":"b05d6f6dc2ec60ec2ff51642203632d9979d3ffe5c61aa88b371ebcd581f82b9"},"schema_version":"1.0"},"canonical_sha256":"b83a4d558c92f1e04a87e931c496a1999faf9024e9cdef8704bd894f8d3b4fd5","source":{"kind":"arxiv","id":"1905.02931","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.02931","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"arxiv_version","alias_value":"1905.02931v1","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.02931","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"pith_short_12","alias_value":"XA5E2VMMSLY6","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XA5E2VMMSLY6ASUH","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XA5E2VMM","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XA5E2VMMSLY6ASUH5EY4JFVBTG","target":"record","payload":{"canonical_record":{"source":{"id":"1905.02931","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-08T06:51:19Z","cross_cats_sorted":[],"title_canon_sha256":"15889ef486eaa60107ba254c78c5c25cd4734f5fa0316fd8ea8861b7f1a823a4","abstract_canon_sha256":"b05d6f6dc2ec60ec2ff51642203632d9979d3ffe5c61aa88b371ebcd581f82b9"},"schema_version":"1.0"},"canonical_sha256":"b83a4d558c92f1e04a87e931c496a1999faf9024e9cdef8704bd894f8d3b4fd5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:44.999180Z","signature_b64":"3ZyWB+SOQumIycv6sZI//elp1GqW2VV+nOigAGH4BAa2uJkCIk5Ik77/zktJN7nRBpfWjIFQOzvb23sUzrzLAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b83a4d558c92f1e04a87e931c496a1999faf9024e9cdef8704bd894f8d3b4fd5","last_reissued_at":"2026-05-17T23:46:44.998599Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:44.998599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.02931","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":"2026-05-17T23:46:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZIMgRxDE2BlrHbfXeH1UhxwAJugKjcCn7WwYGCZ/vZ9bzWPJuOHHw6BLbw76YCCiOSPibVC7XjDIYI/Pb8TQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T13:30:20.480096Z"},"content_sha256":"1dc2ecbc5a3230c5914f834b524fe00a7ceb40b8121d9a88e8f5e0130436f352","schema_version":"1.0","event_id":"sha256:1dc2ecbc5a3230c5914f834b524fe00a7ceb40b8121d9a88e8f5e0130436f352"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XA5E2VMMSLY6ASUH5EY4JFVBTG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Room Temperature Ferroelectric Ferromagnet in 1D Tetrahedral Chain Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Amit Khare, Chang Jae Roh, Daehee Seol, Hiromichi Ohta, Jaejun Yu, Jaekwang Lee, Jinyoung Lim, Jiwoong Kim, Jong Seok Lee, Jun Han Lee, Kyeong Tae Kang, Kyoungjun Lee, Seung Chul Chae, Seunghun Kang, Sungkyun Park, Taewon Min, Tae Yoon Lee, Woo Seok Choi, Yoon Seok Oh, Yunseok Kim","submitted_at":"2019-05-08T06:51:19Z","abstract_excerpt":"Ferroelectricity occurs in crystals with broken spatial inversion symmetry. In conventional perovskite oxides, concerted ionic displacements within a three-dimensional network of transition metal-oxygen polyhedra (MOx) manifest spontaneous polarization. Meanwhile, some two-dimensional networks of MOx can foster geometric ferroelectricity with magnetism, owing to the distortion of the polyhedra. Because of the fundamentally different mechanism of ferroelectricity in a two-dimensional network, one can further challenge an uncharted mechanism of ferroelectricity in a one-dimensional channel of MO"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.02931","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":""},"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":"2026-05-17T23:46:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OrF5DoWXWCG5gKDN4X+nYk20MqgF/+Vin3MwWsU7wFrlGV5mFCobxYvXdJWoBb42AFIENhIdksRkp3Q5j85IDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T13:30:20.480763Z"},"content_sha256":"0eeb70c7c3ef2111c92589213d607e944384d781ffec535cfc3970fe54acdd6c","schema_version":"1.0","event_id":"sha256:0eeb70c7c3ef2111c92589213d607e944384d781ffec535cfc3970fe54acdd6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/bundle.json","state_url":"https://pith.science/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/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":"2026-05-21T13:30:20Z","links":{"resolver":"https://pith.science/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG","bundle":"https://pith.science/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/bundle.json","state":"https://pith.science/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XA5E2VMMSLY6ASUH5EY4JFVBTG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XA5E2VMMSLY6ASUH5EY4JFVBTG","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":"b05d6f6dc2ec60ec2ff51642203632d9979d3ffe5c61aa88b371ebcd581f82b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-08T06:51:19Z","title_canon_sha256":"15889ef486eaa60107ba254c78c5c25cd4734f5fa0316fd8ea8861b7f1a823a4"},"schema_version":"1.0","source":{"id":"1905.02931","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.02931","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"arxiv_version","alias_value":"1905.02931v1","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.02931","created_at":"2026-05-17T23:46:44Z"},{"alias_kind":"pith_short_12","alias_value":"XA5E2VMMSLY6","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"XA5E2VMMSLY6ASUH","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"XA5E2VMM","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:0eeb70c7c3ef2111c92589213d607e944384d781ffec535cfc3970fe54acdd6c","target":"graph","created_at":"2026-05-17T23:46:44Z","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":"Ferroelectricity occurs in crystals with broken spatial inversion symmetry. In conventional perovskite oxides, concerted ionic displacements within a three-dimensional network of transition metal-oxygen polyhedra (MOx) manifest spontaneous polarization. Meanwhile, some two-dimensional networks of MOx can foster geometric ferroelectricity with magnetism, owing to the distortion of the polyhedra. Because of the fundamentally different mechanism of ferroelectricity in a two-dimensional network, one can further challenge an uncharted mechanism of ferroelectricity in a one-dimensional channel of MO","authors_text":"Amit Khare, Chang Jae Roh, Daehee Seol, Hiromichi Ohta, Jaejun Yu, Jaekwang Lee, Jinyoung Lim, Jiwoong Kim, Jong Seok Lee, Jun Han Lee, Kyeong Tae Kang, Kyoungjun Lee, Seung Chul Chae, Seunghun Kang, Sungkyun Park, Taewon Min, Tae Yoon Lee, Woo Seok Choi, Yoon Seok Oh, Yunseok Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-08T06:51:19Z","title":"Room Temperature Ferroelectric Ferromagnet in 1D Tetrahedral Chain Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.02931","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":"sha256:1dc2ecbc5a3230c5914f834b524fe00a7ceb40b8121d9a88e8f5e0130436f352","target":"record","created_at":"2026-05-17T23:46:44Z","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":"b05d6f6dc2ec60ec2ff51642203632d9979d3ffe5c61aa88b371ebcd581f82b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-08T06:51:19Z","title_canon_sha256":"15889ef486eaa60107ba254c78c5c25cd4734f5fa0316fd8ea8861b7f1a823a4"},"schema_version":"1.0","source":{"id":"1905.02931","kind":"arxiv","version":1}},"canonical_sha256":"b83a4d558c92f1e04a87e931c496a1999faf9024e9cdef8704bd894f8d3b4fd5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b83a4d558c92f1e04a87e931c496a1999faf9024e9cdef8704bd894f8d3b4fd5","first_computed_at":"2026-05-17T23:46:44.998599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:44.998599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3ZyWB+SOQumIycv6sZI//elp1GqW2VV+nOigAGH4BAa2uJkCIk5Ik77/zktJN7nRBpfWjIFQOzvb23sUzrzLAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:44.999180Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.02931","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dc2ecbc5a3230c5914f834b524fe00a7ceb40b8121d9a88e8f5e0130436f352","sha256:0eeb70c7c3ef2111c92589213d607e944384d781ffec535cfc3970fe54acdd6c"],"state_sha256":"4ba528a1c90dd5029f024799b013ec08d7911bc91996b9cc53daf017e1ae6849"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wbE7PrrCol/MhPNK69rMe4uhmUE9vRsEFDPA6UOtbBCBY1DzB2Q/+ZPx86ItJ1b0iU+DJKalRn83aBjO6RUvBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T13:30:20.483868Z","bundle_sha256":"07fedf54dc2e3d739bd049e9a9bc2e9073a012c729b1ad1f43c6b3218db07165"}}