{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VYQTVUOWORVIDH66NZA3JXJ4R7","short_pith_number":"pith:VYQTVUOW","canonical_record":{"source":{"id":"1805.01849","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-04T16:46:47Z","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"title_canon_sha256":"bacfc5d4d7c0d77d77a6f28faa8fb677c8710d98708e6b01c15b5f2b3caa5428","abstract_canon_sha256":"ecd6570b5f60f218aa55d9397dc7000500f0313d592eccffc4b6ea9d6f99800a"},"schema_version":"1.0"},"canonical_sha256":"ae213ad1d6746a819fde6e41b4dd3c8fd65d8a8dc690f1b8606f453261e707c9","source":{"kind":"arxiv","id":"1805.01849","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.01849","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"arxiv_version","alias_value":"1805.01849v1","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.01849","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"pith_short_12","alias_value":"VYQTVUOWORVI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VYQTVUOWORVIDH66","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VYQTVUOW","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VYQTVUOWORVIDH66NZA3JXJ4R7","target":"record","payload":{"canonical_record":{"source":{"id":"1805.01849","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-04T16:46:47Z","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"title_canon_sha256":"bacfc5d4d7c0d77d77a6f28faa8fb677c8710d98708e6b01c15b5f2b3caa5428","abstract_canon_sha256":"ecd6570b5f60f218aa55d9397dc7000500f0313d592eccffc4b6ea9d6f99800a"},"schema_version":"1.0"},"canonical_sha256":"ae213ad1d6746a819fde6e41b4dd3c8fd65d8a8dc690f1b8606f453261e707c9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:59.432972Z","signature_b64":"HL3TyW36Yik3egOY+0q9MGaO02JyON/AOLqRB/cjLnptYcy6OWImchx27AFmoCWab/LqxBLAki1VzHVbVUdvCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae213ad1d6746a819fde6e41b4dd3c8fd65d8a8dc690f1b8606f453261e707c9","last_reissued_at":"2026-05-18T00:09:59.432263Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:59.432263Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.01849","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:09:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z/tMw35TAFf1yMO5Es1EKR/7yAzBn8thxF9xY6Z6DPBtB5ga1hlikVwm9Wn6v9akeAKH+0Bv+qv/pdkGt01PDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:25:34.749459Z"},"content_sha256":"06763a5dd5ba8c81eda03e6544aed24069f1b40f9e080732352e4b69a9697ca9","schema_version":"1.0","event_id":"sha256:06763a5dd5ba8c81eda03e6544aed24069f1b40f9e080732352e4b69a9697ca9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VYQTVUOWORVIDH66NZA3JXJ4R7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation and dynamics of small polarons on the rutile TiO$_2$(110) surface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph","physics.comp-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Cesare Franchini, Martin Setvin, Michael Schmid, Michele Reticcioli, Ulrike Diebold","submitted_at":"2018-05-04T16:46:47Z","abstract_excerpt":"Charge trapping and formation of polarons is a pervasive phenomenon in transition metal oxide compounds, in particular at the surface, affecting fundamental physical properties and functionalities of the hosting materials. Here we investigate via first-principle techniques the formation and dynamics of small polarons on the reduced surface of titanium dioxide, an archetypal system for polarons, for a wide range of oxygen vacancy concentrations. We report how the essential features of polarons can be adequately accounted in terms of few quantities: the local structural and chemical environment,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.01849","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:09:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QOhnEtoXQq0VzZ2L5UedZNAO3nDzWvUA7L7GfoQkTM28zgYmiN2F++FJ4B2QtFo3fLRk1ficgmZivCwe6cZgAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:25:34.749994Z"},"content_sha256":"cbd34eeb463ae94b176b1233f2865aea178cd35949875ce9d4e1499050a3f303","schema_version":"1.0","event_id":"sha256:cbd34eeb463ae94b176b1233f2865aea178cd35949875ce9d4e1499050a3f303"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/bundle.json","state_url":"https://pith.science/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T22:25:34Z","links":{"resolver":"https://pith.science/pith/VYQTVUOWORVIDH66NZA3JXJ4R7","bundle":"https://pith.science/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/bundle.json","state":"https://pith.science/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VYQTVUOWORVIDH66NZA3JXJ4R7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VYQTVUOWORVIDH66NZA3JXJ4R7","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":"ecd6570b5f60f218aa55d9397dc7000500f0313d592eccffc4b6ea9d6f99800a","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-04T16:46:47Z","title_canon_sha256":"bacfc5d4d7c0d77d77a6f28faa8fb677c8710d98708e6b01c15b5f2b3caa5428"},"schema_version":"1.0","source":{"id":"1805.01849","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.01849","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"arxiv_version","alias_value":"1805.01849v1","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.01849","created_at":"2026-05-18T00:09:59Z"},{"alias_kind":"pith_short_12","alias_value":"VYQTVUOWORVI","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VYQTVUOWORVIDH66","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VYQTVUOW","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:cbd34eeb463ae94b176b1233f2865aea178cd35949875ce9d4e1499050a3f303","target":"graph","created_at":"2026-05-18T00:09:59Z","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":"Charge trapping and formation of polarons is a pervasive phenomenon in transition metal oxide compounds, in particular at the surface, affecting fundamental physical properties and functionalities of the hosting materials. Here we investigate via first-principle techniques the formation and dynamics of small polarons on the reduced surface of titanium dioxide, an archetypal system for polarons, for a wide range of oxygen vacancy concentrations. We report how the essential features of polarons can be adequately accounted in terms of few quantities: the local structural and chemical environment,","authors_text":"Cesare Franchini, Martin Setvin, Michael Schmid, Michele Reticcioli, Ulrike Diebold","cross_cats":["physics.chem-ph","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-04T16:46:47Z","title":"Formation and dynamics of small polarons on the rutile TiO$_2$(110) surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.01849","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":"sha256:06763a5dd5ba8c81eda03e6544aed24069f1b40f9e080732352e4b69a9697ca9","target":"record","created_at":"2026-05-18T00:09:59Z","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":"ecd6570b5f60f218aa55d9397dc7000500f0313d592eccffc4b6ea9d6f99800a","cross_cats_sorted":["physics.chem-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-04T16:46:47Z","title_canon_sha256":"bacfc5d4d7c0d77d77a6f28faa8fb677c8710d98708e6b01c15b5f2b3caa5428"},"schema_version":"1.0","source":{"id":"1805.01849","kind":"arxiv","version":1}},"canonical_sha256":"ae213ad1d6746a819fde6e41b4dd3c8fd65d8a8dc690f1b8606f453261e707c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae213ad1d6746a819fde6e41b4dd3c8fd65d8a8dc690f1b8606f453261e707c9","first_computed_at":"2026-05-18T00:09:59.432263Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:59.432263Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HL3TyW36Yik3egOY+0q9MGaO02JyON/AOLqRB/cjLnptYcy6OWImchx27AFmoCWab/LqxBLAki1VzHVbVUdvCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:59.432972Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.01849","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06763a5dd5ba8c81eda03e6544aed24069f1b40f9e080732352e4b69a9697ca9","sha256:cbd34eeb463ae94b176b1233f2865aea178cd35949875ce9d4e1499050a3f303"],"state_sha256":"7ce05a9e5453425806441620ad2d5bc7ba70a562a22c2ab0fb7596b47eb6860f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m19BnZPsT7LanYjwOCH80dRCX2TpgEK16+fScuqK0MjB/svtK8GBCI4uqS3HDSpnSr1MCL5iD7TglOQr/DVXDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:25:34.752416Z","bundle_sha256":"88855397fcef3501ee80c2ce76d3ce0ed436ff27111540b0c01e871ab577b878"}}