{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:JOF774SR3AMXQHDSEQSFIKQRLS","short_pith_number":"pith:JOF774SR","canonical_record":{"source":{"id":"1902.10900","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-02-28T05:30:13Z","cross_cats_sorted":[],"title_canon_sha256":"509d676137e6b5cb7ea66f68d8cad9181b48a337652323ad2508479742f50d6e","abstract_canon_sha256":"f5afd9f07e5fadc3f1927142c45e29342ecac9bb1fe608e72da1f28550084ac5"},"schema_version":"1.0"},"canonical_sha256":"4b8bfff251d819781c722424542a115c824250567a3b063be69b6f58300fc587","source":{"kind":"arxiv","id":"1902.10900","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.10900","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"1902.10900v1","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.10900","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"JOF774SR3AMX","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"JOF774SR3AMXQHDS","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"JOF774SR","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:JOF774SR3AMXQHDSEQSFIKQRLS","target":"record","payload":{"canonical_record":{"source":{"id":"1902.10900","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-02-28T05:30:13Z","cross_cats_sorted":[],"title_canon_sha256":"509d676137e6b5cb7ea66f68d8cad9181b48a337652323ad2508479742f50d6e","abstract_canon_sha256":"f5afd9f07e5fadc3f1927142c45e29342ecac9bb1fe608e72da1f28550084ac5"},"schema_version":"1.0"},"canonical_sha256":"4b8bfff251d819781c722424542a115c824250567a3b063be69b6f58300fc587","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:23.270889Z","signature_b64":"/VxvNfdVe6Ty9w6NbGjqGRgxiqZhPuRsv+2BNav8nVOH1NQigiJjuGBEYR8Gt/3Owl8UFAB88H95KtSUKzQ0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b8bfff251d819781c722424542a115c824250567a3b063be69b6f58300fc587","last_reissued_at":"2026-05-17T23:42:23.270109Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:23.270109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.10900","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":"2026-05-17T23:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4sWs/gZSPfm4ysi57K8F7/WQR1pVOhLoA50McSjK87XK4+W5Dn8ab424T+gyKm3N289s2Epl4aOQKaPov5BBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:58:18.419738Z"},"content_sha256":"df4c3ea39328ed00044009b1421cc107ba4d17b6fbb8c8117f63ae04d47221ca","schema_version":"1.0","event_id":"sha256:df4c3ea39328ed00044009b1421cc107ba4d17b6fbb8c8117f63ae04d47221ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:JOF774SR3AMXQHDSEQSFIKQRLS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polar State induced by Block-type Lattice Distortions in BaFe2Se3 with Quasi-One-Dimensional Ladder Structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Kazuki Hashizume, Kenya Ohgushi, Masakazu Matsubara, Satoshi Imaizumi, Takuya Aoyama, Takuya Togashi, Yasuyuki Hirata, Yoshifumi Sato, Yusuke Nambu","submitted_at":"2019-02-28T05:30:13Z","abstract_excerpt":"Temperature dependent crystal structures of the quasi-one-dimensional ladder material BaFe2Se3 are examined. Combining the optical second harmonic generation (SHG) experiments and neutron diffraction measurements, we elucidate the crystal structure with Pmn2_1 space group in the low-temperature phase below Ts2 = 400 K, further above Neel temperature. This low-temperature phase loses the spatial inversion symmetry, where a resultant macroscopic polarization emerges along the rung direction. The transition is characterized by block-type lattice distortions with the magneto-striction mechanism. C"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.10900","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":"2026-05-17T23:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nWL/Grl9FQ0U4bCVtWY51sMFQn2PYwUQQhmugzFQ0tWuuffONr0b0Rphwi6yvxwB3X2jRD+1pRrcTmBadbn0Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:58:18.420117Z"},"content_sha256":"76d54cd246abb5debb912b61802cbe853170b8ce1dda7cfecfc85144bee44899","schema_version":"1.0","event_id":"sha256:76d54cd246abb5debb912b61802cbe853170b8ce1dda7cfecfc85144bee44899"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JOF774SR3AMXQHDSEQSFIKQRLS/bundle.json","state_url":"https://pith.science/pith/JOF774SR3AMXQHDSEQSFIKQRLS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JOF774SR3AMXQHDSEQSFIKQRLS/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":"2026-06-05T14:58:18Z","links":{"resolver":"https://pith.science/pith/JOF774SR3AMXQHDSEQSFIKQRLS","bundle":"https://pith.science/pith/JOF774SR3AMXQHDSEQSFIKQRLS/bundle.json","state":"https://pith.science/pith/JOF774SR3AMXQHDSEQSFIKQRLS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JOF774SR3AMXQHDSEQSFIKQRLS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JOF774SR3AMXQHDSEQSFIKQRLS","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":"f5afd9f07e5fadc3f1927142c45e29342ecac9bb1fe608e72da1f28550084ac5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-02-28T05:30:13Z","title_canon_sha256":"509d676137e6b5cb7ea66f68d8cad9181b48a337652323ad2508479742f50d6e"},"schema_version":"1.0","source":{"id":"1902.10900","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.10900","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"1902.10900v1","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.10900","created_at":"2026-05-17T23:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"JOF774SR3AMX","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"JOF774SR3AMXQHDS","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"JOF774SR","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:76d54cd246abb5debb912b61802cbe853170b8ce1dda7cfecfc85144bee44899","target":"graph","created_at":"2026-05-17T23:42:23Z","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":"Temperature dependent crystal structures of the quasi-one-dimensional ladder material BaFe2Se3 are examined. Combining the optical second harmonic generation (SHG) experiments and neutron diffraction measurements, we elucidate the crystal structure with Pmn2_1 space group in the low-temperature phase below Ts2 = 400 K, further above Neel temperature. This low-temperature phase loses the spatial inversion symmetry, where a resultant macroscopic polarization emerges along the rung direction. The transition is characterized by block-type lattice distortions with the magneto-striction mechanism. C","authors_text":"Kazuki Hashizume, Kenya Ohgushi, Masakazu Matsubara, Satoshi Imaizumi, Takuya Aoyama, Takuya Togashi, Yasuyuki Hirata, Yoshifumi Sato, Yusuke Nambu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-02-28T05:30:13Z","title":"Polar State induced by Block-type Lattice Distortions in BaFe2Se3 with Quasi-One-Dimensional Ladder Structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.10900","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:df4c3ea39328ed00044009b1421cc107ba4d17b6fbb8c8117f63ae04d47221ca","target":"record","created_at":"2026-05-17T23:42:23Z","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":"f5afd9f07e5fadc3f1927142c45e29342ecac9bb1fe608e72da1f28550084ac5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-02-28T05:30:13Z","title_canon_sha256":"509d676137e6b5cb7ea66f68d8cad9181b48a337652323ad2508479742f50d6e"},"schema_version":"1.0","source":{"id":"1902.10900","kind":"arxiv","version":1}},"canonical_sha256":"4b8bfff251d819781c722424542a115c824250567a3b063be69b6f58300fc587","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b8bfff251d819781c722424542a115c824250567a3b063be69b6f58300fc587","first_computed_at":"2026-05-17T23:42:23.270109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:23.270109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/VxvNfdVe6Ty9w6NbGjqGRgxiqZhPuRsv+2BNav8nVOH1NQigiJjuGBEYR8Gt/3Owl8UFAB88H95KtSUKzQ0Dw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:23.270889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.10900","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df4c3ea39328ed00044009b1421cc107ba4d17b6fbb8c8117f63ae04d47221ca","sha256:76d54cd246abb5debb912b61802cbe853170b8ce1dda7cfecfc85144bee44899"],"state_sha256":"2d3f9648ee7b825d4e7621d9a891c40173a86e01ceaaf987e0d1b9065ed2eece"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KlVz+xSKqNisPA8PDVyRk/Lkln1Z5ikQ9cB5osEjn37vb8HDeLH0RQas+GxgC3be+F6H7Ca4YtzBnYT7o0IsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T14:58:18.422479Z","bundle_sha256":"5c85b63aa903de89ac4cf7fbe542358e40c5a7bf9da7e7c1b5369bb8c673daa7"}}