{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:CNGXMYDBME23CGBQDAXLWPD7I4","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":"c4672a0498e76eab041a46a6584e575d87923316990cc46a60b561bd31fdc563","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-10-22T19:21:21Z","title_canon_sha256":"334ad0fc2174c4c8af95b1e6239b9a99010db036163fb1856543ce2a35ac1c19"},"schema_version":"1.0","source":{"id":"0710.4126","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.4126","created_at":"2026-05-18T03:54:26Z"},{"alias_kind":"arxiv_version","alias_value":"0710.4126v1","created_at":"2026-05-18T03:54:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.4126","created_at":"2026-05-18T03:54:26Z"},{"alias_kind":"pith_short_12","alias_value":"CNGXMYDBME23","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"CNGXMYDBME23CGBQ","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"CNGXMYDB","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:a345168e160c40cfe5417dfa8b3e649623b203b6677f310aa6a78e45c7f3fd69","target":"graph","created_at":"2026-05-18T03:54:26Z","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":"We investigated the pressure-dependent optical response of the low-dimensional Mott-Hubbard insulator TiOBr by transmittance and reflectance measurements in the infrared and visible frequency range. A suppression of the transmittance above a critical pressure and a concomitant increase of the reflectance are observed, suggesting a pressure-induced metallization of TiOBr. The metallic phase of TiOBr at high pressure is confirmed by the presence of additional excitations extending down to the far-infrared range. The pressure-induced metallization coincides with a structural phase transition, acc","authors_text":"A. Pashkin, A. Sch\\\"onleber, C. A. Kuntscher, H. Hoffmann, M. Hanfland, M. Klemm, M. Sing, R. Claessen, S. Frank, S. Glawion, S. Horn, S. van Smaalen","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-10-22T19:21:21Z","title":"Pressure-induced metallization and structural phase transition of the Mott-Hubbard insulator TiOBr"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.4126","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:deb105081345725811a42bbfb4f7c9cca7f43feabe74cd32220fdb6d5d2c3d8a","target":"record","created_at":"2026-05-18T03:54:26Z","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":"c4672a0498e76eab041a46a6584e575d87923316990cc46a60b561bd31fdc563","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2007-10-22T19:21:21Z","title_canon_sha256":"334ad0fc2174c4c8af95b1e6239b9a99010db036163fb1856543ce2a35ac1c19"},"schema_version":"1.0","source":{"id":"0710.4126","kind":"arxiv","version":1}},"canonical_sha256":"134d7660616135b11830182ebb3c7f470a964971d36391e8a2dee88ad7290b88","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"134d7660616135b11830182ebb3c7f470a964971d36391e8a2dee88ad7290b88","first_computed_at":"2026-05-18T03:54:26.517051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:54:26.517051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"voo978M4cDvEalmygosSgyKgqIKNiTzrosLTEDsdfjuYbiYGFbI9iY+yhqIYTNv1uNPcS8rgnQWlryen7mFpCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:54:26.517634Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.4126","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:deb105081345725811a42bbfb4f7c9cca7f43feabe74cd32220fdb6d5d2c3d8a","sha256:a345168e160c40cfe5417dfa8b3e649623b203b6677f310aa6a78e45c7f3fd69"],"state_sha256":"d43a8d2f9cc7a50faa2fbb80d86254d599ac810bbe42bb4c015bf321240572b1"}