{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JTADWJDLEPVGNB3RSKUD7IB3BI","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":"0082aa3ec0a2fe631cb87d0f79e6fcd2ee8e45f86cb605abf1c2b07ebcde6bcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-04-12T09:40:33Z","title_canon_sha256":"fd8c435f0fa41cdb6cc403c2acde925c0bad276ba34240ba94b1ddf9f906fd8b"},"schema_version":"1.0","source":{"id":"1804.04398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04398","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04398v1","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04398","created_at":"2026-05-18T00:18:37Z"},{"alias_kind":"pith_short_12","alias_value":"JTADWJDLEPVG","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JTADWJDLEPVGNB3R","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JTADWJDL","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:abd2b82e2eddf9eddfc203cf810e8a63d25d3af2efe5abee9f34f28458063fc8","target":"graph","created_at":"2026-05-18T00:18:37Z","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":"Anatase is a metastable polymorph of TiO$_2$. In contrast to the more widely-studied TiO$_2$ rutile, O vacancies (V$_\\mathrm O$'s) are not stable at the anatase (101) surface. Low-temperature STM shows that surface V$_\\mathrm O$'s, created by electron bombardment at 105 K, start migrating to subsurface sites at temperatures $\\geq$ 200 K. After an initial decrease of the V$_\\mathrm O$ density, a temperature-dependent dynamic equilibrium is established where V$_\\mathrm O$'s move to subsurface sites and back again, as seen in time-lapse STM images. We estimate that activation energies for subsurf","authors_text":"Annabella Selloni, Martin Fidler, Michael Schmid, Olga Dulub, Philipp Scheiber, Ulrich Aschauer, Ulrike Diebold, Weiyi Hou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-04-12T09:40:33Z","title":"(Sub)surface mobility of oxygen vacancies at the TiO$_2$ anatase (101) surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04398","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":"sha256:2fb293843e5f1ce632c7316f41058a25095145df14c46743bf82f0efd2e32d70","target":"record","created_at":"2026-05-18T00:18:37Z","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":"0082aa3ec0a2fe631cb87d0f79e6fcd2ee8e45f86cb605abf1c2b07ebcde6bcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-04-12T09:40:33Z","title_canon_sha256":"fd8c435f0fa41cdb6cc403c2acde925c0bad276ba34240ba94b1ddf9f906fd8b"},"schema_version":"1.0","source":{"id":"1804.04398","kind":"arxiv","version":1}},"canonical_sha256":"4cc03b246b23ea66877192a83fa03b0a1724e56b45c24756db5e16a46d1857ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4cc03b246b23ea66877192a83fa03b0a1724e56b45c24756db5e16a46d1857ea","first_computed_at":"2026-05-18T00:18:37.677631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:37.677631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5f+BSCOtqQeR5nnsFP+SMg3/6CSOi+KN2cvOxEtEA3QGfD7PevpohQ8YajKGlfkSUeaPamdE60iHK9PXfv85Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:37.678104Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fb293843e5f1ce632c7316f41058a25095145df14c46743bf82f0efd2e32d70","sha256:abd2b82e2eddf9eddfc203cf810e8a63d25d3af2efe5abee9f34f28458063fc8"],"state_sha256":"eb114b120970b272323e81d4480d70746f645e03e2defd6ef93632cdcf17d877"}