{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OSTAHUG5B4MS4W5ZA6HST2DRIK","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":"280c84c61dbc66da552bbc1f642200f3516136a14a8042533cdba31a15f90dc9","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-03-22T15:18:12Z","title_canon_sha256":"6e75e6998cb9a6590db531efb179af6ffcb97dc83d14e999ef20f57110d56597"},"schema_version":"1.0","source":{"id":"1303.5640","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.5640","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1303.5640v1","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.5640","created_at":"2026-05-18T01:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"OSTAHUG5B4MS","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OSTAHUG5B4MS4W5Z","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OSTAHUG5","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:b980bbedd7782119a0159290dc4f918462bbc95297a2f18d4c715331579551eb","target":"graph","created_at":"2026-05-18T01:50:59Z","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":"Oxygen vacancies created in anatase TiO2 by UV photons (80 - 130 eV) provide an effective electron-doping mechanism and induce a hitherto unobserved dispersive metallic state. Angle resolved photoemission (ARPES) reveals that the quasiparticles are large polarons. These results indicate that anatase can be tuned from an insulator to a polaron gas to a weakly correlated metal as a function of doping and clarify the nature of conductivity in this material.","authors_text":"A. Bostwick, A. Magrez, E. Rotenberg, H. Berger, J. Jacimovic, K. S. Kim, L. Forro, L. Moreschini, M. Grioni, O. S. Barisic, S. Moser, Y. J. Chang","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-03-22T15:18:12Z","title":"Tunable polaronic conduction in anatase TiO2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.5640","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:bc8c97bc6f6c827f148b0ea479ddd79201dd873a4b5be3bcc96a0265ce4a4b41","target":"record","created_at":"2026-05-18T01:50:59Z","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":"280c84c61dbc66da552bbc1f642200f3516136a14a8042533cdba31a15f90dc9","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-03-22T15:18:12Z","title_canon_sha256":"6e75e6998cb9a6590db531efb179af6ffcb97dc83d14e999ef20f57110d56597"},"schema_version":"1.0","source":{"id":"1303.5640","kind":"arxiv","version":1}},"canonical_sha256":"74a603d0dd0f192e5bb9078f29e8714296f7546b7c0ae04f7e031bbaede61474","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74a603d0dd0f192e5bb9078f29e8714296f7546b7c0ae04f7e031bbaede61474","first_computed_at":"2026-05-18T01:50:59.506082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:59.506082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w+VFVr4b+8mKfazFrO7XSyGni5+Ei7KO+LrCI2G4fqHkkcInO2WFTQ+TAQglY8MzC1P7FO6QT5kQBTXtHChHCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:59.506521Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.5640","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc8c97bc6f6c827f148b0ea479ddd79201dd873a4b5be3bcc96a0265ce4a4b41","sha256:b980bbedd7782119a0159290dc4f918462bbc95297a2f18d4c715331579551eb"],"state_sha256":"c8a3f520ea1ffcdff50df8fb72f86b3a960e735ba57f00a8b66a93147db9c7ca"}