{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PFPJWS4KCVTEQV7WBLTAJN4MOL","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":"c06117d952d6fd893046baf20e97a8b477997bacdc771f4585a346435b1a6f9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-15T20:48:20Z","title_canon_sha256":"c7259f63ce2198141fabb28797aebcdb57a5793e34d512f02b4acef034e4841e"},"schema_version":"1.0","source":{"id":"1809.05768","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.05768","created_at":"2026-05-18T00:03:01Z"},{"alias_kind":"arxiv_version","alias_value":"1809.05768v1","created_at":"2026-05-18T00:03:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.05768","created_at":"2026-05-18T00:03:01Z"},{"alias_kind":"pith_short_12","alias_value":"PFPJWS4KCVTE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"PFPJWS4KCVTEQV7W","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"PFPJWS4K","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:b811ffc144dd6cbca268b9ba5a6a2e7351b7fa2d99cf790af42f04c8d1314bd1","target":"graph","created_at":"2026-05-18T00:03:01Z","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":"LiOsO3 is one of the first materials identified in a recent literature as a 'polar metal', a class of materials that are simultaneously noncentrosymmetric and metallic. In this work, the linear and nonlinear optical susceptibility of LiOsO3 is studied by means of ellipsometry and optical second harmonic generation (SHG). Strong optical birefringence is observed using spectroscopic ellipsometry. The nonlinear optical susceptibility extracted from SHG polarimetry reveals that the tensor components are of the same magnitude as in isostructural insulator LiNbO3, except the component along the pola","authors_text":"Danilo Puggioni, Haricharan Padmanabhan, Jak Chakhalian, James M. Rondinelli, Lev Gasparov, Venkatraman Gopalan, Yakun Yuan, Yanwei Cao, Yoonsang Park, Youguo Shi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-15T20:48:20Z","title":"Linear and nonlinear optical probe of the ferroelectric-like phase transition in a polar metal, LiOsO3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.05768","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:d6cee0190d1895cc8787aec2305cc368908ec11b876cda484d2df28abf31a2b1","target":"record","created_at":"2026-05-18T00:03:01Z","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":"c06117d952d6fd893046baf20e97a8b477997bacdc771f4585a346435b1a6f9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-15T20:48:20Z","title_canon_sha256":"c7259f63ce2198141fabb28797aebcdb57a5793e34d512f02b4acef034e4841e"},"schema_version":"1.0","source":{"id":"1809.05768","kind":"arxiv","version":1}},"canonical_sha256":"795e9b4b8a15664857f60ae604b78c72eefbf4afab8140b4e29d933aa92afd33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"795e9b4b8a15664857f60ae604b78c72eefbf4afab8140b4e29d933aa92afd33","first_computed_at":"2026-05-18T00:03:01.443424Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:01.443424Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ub5c9ggHFTpuidPdToAqfqWJezJdZxh0ma9pezIxevE+5v/v6gqvAjbOU+XhxdiFdGUqhYnjVY+qLJpYZ9hSDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:01.443892Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.05768","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6cee0190d1895cc8787aec2305cc368908ec11b876cda484d2df28abf31a2b1","sha256:b811ffc144dd6cbca268b9ba5a6a2e7351b7fa2d99cf790af42f04c8d1314bd1"],"state_sha256":"ff969dac4617cb1897d1ef90749ffeeb4ea0e1f075178f4115d5984be031580f"}