{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:D5HS3WEP4KIGDBIO6GZQJJBPOK","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":"0c38c7211ae79e65c24a35a75a72a78579702a3180cee67e2eb2333098620000","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-12T15:25:06Z","title_canon_sha256":"05816ce015d6ce468733aaf978736623b1d020809f9c9428779cb2b264dca394"},"schema_version":"1.0","source":{"id":"2101.04545","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.04545","created_at":"2026-07-05T05:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"2101.04545v4","created_at":"2026-07-05T05:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.04545","created_at":"2026-07-05T05:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"D5HS3WEP4KIG","created_at":"2026-07-05T05:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"D5HS3WEP4KIGDBIO","created_at":"2026-07-05T05:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"D5HS3WEP","created_at":"2026-07-05T05:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:85bd3faa30cc8895c7fad293bb38d0a9515359bb3c64bac4a2a1b09b4431a80d","target":"graph","created_at":"2026-07-05T05:29:50Z","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/2101.04545/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Polar skyrmions are predicted to emerge from the interplay of elastic, electrostatic and gradient energies, in contrast to the key role of the anti-symmetric Dzyalozhinskii-Moriya interaction in magnetic skyrmions. With the discovery of topologically-stable polar skyrmions, it is of both fundamental and practical interest to understand the microscopic nature and the possibility of temperature- and strain-driven phase transitions in ensembles of such polar skyrmions. Here, we explore the reversible transition from a skyrmion state (topological charge of -1) to a two-dimensional, tetratic lattic","authors_text":"David A. Muller, Fernando G\\'omez-Ortiz, Harold Y. Hwang, Javier Junquera, Lane W. Martin, Long-Qing Chen, Pablo Garc\\'ia-Fern\\'andez, Ramamoorthy Ramesh, Ruijuan Xu, Sujit Das, Swathi Chandrika, Yu-Tsun Shao, Zijian Hong","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-12T15:25:06Z","title":"Emergent chirality in a polar meron to skyrmion phase transition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.04545","kind":"arxiv","version":4},"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":"sha256:6b2be59cc55cd5d67009cca50f785728e5fd4d58dec5867393b774f5b3bd9876","target":"record","created_at":"2026-07-05T05:29:50Z","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":"0c38c7211ae79e65c24a35a75a72a78579702a3180cee67e2eb2333098620000","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-01-12T15:25:06Z","title_canon_sha256":"05816ce015d6ce468733aaf978736623b1d020809f9c9428779cb2b264dca394"},"schema_version":"1.0","source":{"id":"2101.04545","kind":"arxiv","version":4}},"canonical_sha256":"1f4f2dd88fe29061850ef1b304a42f728026f68d2abfabd4d2593d1f295809f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f4f2dd88fe29061850ef1b304a42f728026f68d2abfabd4d2593d1f295809f2","first_computed_at":"2026-07-05T05:29:50.956610Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:29:50.956610Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JmdrOC3v5a3p91kfpe2/LKhgAuj6mfh7fPm0vZCEPXa15W9L0/irOW6pPRBDIlLV5CNmVJDkCt8jfAK+wa1nAA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:29:50.957162Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.04545","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b2be59cc55cd5d67009cca50f785728e5fd4d58dec5867393b774f5b3bd9876","sha256:85bd3faa30cc8895c7fad293bb38d0a9515359bb3c64bac4a2a1b09b4431a80d"],"state_sha256":"ae4aa71ababe6b10e8bc6bad2d102c1a9e35fd09988bb34d61d031de0689bead"}