{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:BAOUN5YPM3W72RWTH4ZOEYBVCS","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":"1b4b165b325c0d3e62dce5e621ea1da3b84b629fc4e2fe267dceffda45ec14d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-02-21T03:30:30Z","title_canon_sha256":"48c48c2aa7aeb1531141dc0437e2e1bf2aba20e09565d6d4ff51fd757f5ea241"},"schema_version":"1.0","source":{"id":"2402.13504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.13504","created_at":"2026-07-05T07:57:50Z"},{"alias_kind":"arxiv_version","alias_value":"2402.13504v1","created_at":"2026-07-05T07:57:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.13504","created_at":"2026-07-05T07:57:50Z"},{"alias_kind":"pith_short_12","alias_value":"BAOUN5YPM3W7","created_at":"2026-07-05T07:57:50Z"},{"alias_kind":"pith_short_16","alias_value":"BAOUN5YPM3W72RWT","created_at":"2026-07-05T07:57:50Z"},{"alias_kind":"pith_short_8","alias_value":"BAOUN5YP","created_at":"2026-07-05T07:57:50Z"}],"graph_snapshots":[{"event_id":"sha256:1982ac08adf9cafd7c64e59c3d66235b984f2b5d751c6ce6bc320b10cd62a7c9","target":"graph","created_at":"2026-07-05T07:57:50Z","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/2402.13504/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We performed high-magnetic-field magnetization, polarization, and ultrasonic measurements in Ba$_2$CuGe$_2$O$_7$ to investigate field-induced multiferroic properties arising from a cross-correlation between electric dipoles and electric quadrupoles in addition to cross-correlation between magnetic dipoles and electric dipoles. Magnetization $M$ shows saturation behavior above 20 T for several magnetic field directions, however, electric polarization $P_c$ exhibits an increase, and elastic constants show a softening above 20 T. Based on quantum states with a crystalline electric field for the $","authors_text":"A. Miyake, H. Kuwahara, K. Mitsumoto, M. Akaki, M. Hagiwara, M. Tokunaga, R. Kurihara, Y. Sato","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-02-21T03:30:30Z","title":"Field-induced electric polarization and elastic softening caused by parity-mixed $d$-$p$ hybridized states with electric multipoles in Ba$_2$CuGe$_2$O$_7$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.13504","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:e0cc68874e715a9dd5a4856da210399e9e997da9496824de1ae5b229de59c93b","target":"record","created_at":"2026-07-05T07:57:50Z","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":"1b4b165b325c0d3e62dce5e621ea1da3b84b629fc4e2fe267dceffda45ec14d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2024-02-21T03:30:30Z","title_canon_sha256":"48c48c2aa7aeb1531141dc0437e2e1bf2aba20e09565d6d4ff51fd757f5ea241"},"schema_version":"1.0","source":{"id":"2402.13504","kind":"arxiv","version":1}},"canonical_sha256":"081d46f70f66edfd46d33f32e2603514b7c409a6b17e2882b89685a55630113e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"081d46f70f66edfd46d33f32e2603514b7c409a6b17e2882b89685a55630113e","first_computed_at":"2026-07-05T07:57:50.022202Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:57:50.022202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7gNArhHQrlwNYwJknc+Vv98VJK/qNcon1TDqvgSYICNcvrlk9i8NwIZpCoIevUC3/n2KnWx6764xpVt8saGdAw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:57:50.022701Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.13504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0cc68874e715a9dd5a4856da210399e9e997da9496824de1ae5b229de59c93b","sha256:1982ac08adf9cafd7c64e59c3d66235b984f2b5d751c6ce6bc320b10cd62a7c9"],"state_sha256":"29aba3532703a5864de61e5bb1bfbe10322a268438a9758ad124627c09e435e3"}