{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:44USH6H42INICRNT6VB4ALIRS6","short_pith_number":"pith:44USH6H4","canonical_record":{"source":{"id":"2303.06023","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-03-10T16:23:30Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"c8f43df622b0418308125b122972ccd0439ad6c4d76d8e30b655ab5ac084ef5d","abstract_canon_sha256":"754f3d3d3335ec145c3c002c7aea580884413d5fd788470ab7fcf3a40f21aef7"},"schema_version":"1.0"},"canonical_sha256":"e72923f8fcd21a8145b3f543c02d119797e93f212e4235e3c0a9e8f234a3fe2d","source":{"kind":"arxiv","id":"2303.06023","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.06023","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"arxiv_version","alias_value":"2303.06023v1","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.06023","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_12","alias_value":"44USH6H42INI","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_16","alias_value":"44USH6H42INICRNT","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_8","alias_value":"44USH6H4","created_at":"2026-07-05T05:49:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:44USH6H42INICRNT6VB4ALIRS6","target":"record","payload":{"canonical_record":{"source":{"id":"2303.06023","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-03-10T16:23:30Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"c8f43df622b0418308125b122972ccd0439ad6c4d76d8e30b655ab5ac084ef5d","abstract_canon_sha256":"754f3d3d3335ec145c3c002c7aea580884413d5fd788470ab7fcf3a40f21aef7"},"schema_version":"1.0"},"canonical_sha256":"e72923f8fcd21a8145b3f543c02d119797e93f212e4235e3c0a9e8f234a3fe2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:49:59.980127Z","signature_b64":"O75B/4V4Kw7JKNLyF5StLu2+6+Mive9ctmC5BHP+5lnOjO1sabjTKm3guDdWCkH+8u9qMwHGzjSwypfSVkooCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e72923f8fcd21a8145b3f543c02d119797e93f212e4235e3c0a9e8f234a3fe2d","last_reissued_at":"2026-07-05T05:49:59.979673Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:49:59.979673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.06023","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":"2026-07-05T05:49:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TCqdSa0LZF8y+vOPS7lVrWg151z/JgdRSW8TNhv2wM0V0sIIfz+enLp0vJIYgCV0LWzGiBlgg+6GUt/tIBYVCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T00:13:48.047234Z"},"content_sha256":"e79f7ec3b0dda80df3b5be89b2f1635072401d6a2b834b5078fae9efe8cdb3ee","schema_version":"1.0","event_id":"sha256:e79f7ec3b0dda80df3b5be89b2f1635072401d6a2b834b5078fae9efe8cdb3ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:44USH6H42INICRNT6VB4ALIRS6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hematite ${\\alpha}-Fe_{2}O_{3}(0001)$ in top and side view: resolving long-standing controversies about its surface structure","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Benjamin Mallada, B\\v{r}etislav \\v{S}mid, Dominik Wrana, Florian Kraushofer, Gareth S. Parkinson, Giada Franceschi, Jan Michali\\v{c}ka, Jan \\v{C}echal, Jes\\'us Redondo, Martin Setvin, Martin \\v{S}vec, Matthias Blatnik, Michele Riva, Nishant Kumar, Ond\\v{r}ej Man, Ulrike Diebold","submitted_at":"2023-03-10T16:23:30Z","abstract_excerpt":"Hematite ${\\alpha}-Fe_{2}O_{3}(0001)$ is the most-investigated iron oxide model system in photo and electrocatalytic research. The rich chemistry of Fe and O allows for many bulk and surface transformations, but their control is challenging. This has led to controversies regarding the structure of the topmost layers. This comprehensive study combines surface methods (nc-AFM, STM, LEED, and XPS) complemented by structural and chemical analysis of the near-surface bulk (HRTEM and EELS). The results show that a compact 2D layer constitutes the topmost surface of ${\\alpha}-Fe_{2}O_{3}(0001)$; it i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.06023","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.06023/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:49:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FMKr4O32oU+nM5r0arFRjTF8KObEVs5OdB1cBy1J2/fu8hRJVPPlVmkpjfC8XQaRBYe370O2fh0mY2hFD1/KDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T00:13:48.047645Z"},"content_sha256":"24a69973338b0e5c5cc787e66e6c62dbadd2f25ba7871afedf2591152595c4d2","schema_version":"1.0","event_id":"sha256:24a69973338b0e5c5cc787e66e6c62dbadd2f25ba7871afedf2591152595c4d2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/44USH6H42INICRNT6VB4ALIRS6/bundle.json","state_url":"https://pith.science/pith/44USH6H42INICRNT6VB4ALIRS6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/44USH6H42INICRNT6VB4ALIRS6/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":"2026-07-13T00:13:48Z","links":{"resolver":"https://pith.science/pith/44USH6H42INICRNT6VB4ALIRS6","bundle":"https://pith.science/pith/44USH6H42INICRNT6VB4ALIRS6/bundle.json","state":"https://pith.science/pith/44USH6H42INICRNT6VB4ALIRS6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/44USH6H42INICRNT6VB4ALIRS6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:44USH6H42INICRNT6VB4ALIRS6","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":"754f3d3d3335ec145c3c002c7aea580884413d5fd788470ab7fcf3a40f21aef7","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-03-10T16:23:30Z","title_canon_sha256":"c8f43df622b0418308125b122972ccd0439ad6c4d76d8e30b655ab5ac084ef5d"},"schema_version":"1.0","source":{"id":"2303.06023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.06023","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"arxiv_version","alias_value":"2303.06023v1","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.06023","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_12","alias_value":"44USH6H42INI","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_16","alias_value":"44USH6H42INICRNT","created_at":"2026-07-05T05:49:59Z"},{"alias_kind":"pith_short_8","alias_value":"44USH6H4","created_at":"2026-07-05T05:49:59Z"}],"graph_snapshots":[{"event_id":"sha256:24a69973338b0e5c5cc787e66e6c62dbadd2f25ba7871afedf2591152595c4d2","target":"graph","created_at":"2026-07-05T05:49:59Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2303.06023/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hematite ${\\alpha}-Fe_{2}O_{3}(0001)$ is the most-investigated iron oxide model system in photo and electrocatalytic research. The rich chemistry of Fe and O allows for many bulk and surface transformations, but their control is challenging. This has led to controversies regarding the structure of the topmost layers. This comprehensive study combines surface methods (nc-AFM, STM, LEED, and XPS) complemented by structural and chemical analysis of the near-surface bulk (HRTEM and EELS). The results show that a compact 2D layer constitutes the topmost surface of ${\\alpha}-Fe_{2}O_{3}(0001)$; it i","authors_text":"Benjamin Mallada, B\\v{r}etislav \\v{S}mid, Dominik Wrana, Florian Kraushofer, Gareth S. Parkinson, Giada Franceschi, Jan Michali\\v{c}ka, Jan \\v{C}echal, Jes\\'us Redondo, Martin Setvin, Martin \\v{S}vec, Matthias Blatnik, Michele Riva, Nishant Kumar, Ond\\v{r}ej Man, Ulrike Diebold","cross_cats":["physics.chem-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-03-10T16:23:30Z","title":"Hematite ${\\alpha}-Fe_{2}O_{3}(0001)$ in top and side view: resolving long-standing controversies about its surface structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.06023","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:e79f7ec3b0dda80df3b5be89b2f1635072401d6a2b834b5078fae9efe8cdb3ee","target":"record","created_at":"2026-07-05T05:49:59Z","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":"754f3d3d3335ec145c3c002c7aea580884413d5fd788470ab7fcf3a40f21aef7","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-03-10T16:23:30Z","title_canon_sha256":"c8f43df622b0418308125b122972ccd0439ad6c4d76d8e30b655ab5ac084ef5d"},"schema_version":"1.0","source":{"id":"2303.06023","kind":"arxiv","version":1}},"canonical_sha256":"e72923f8fcd21a8145b3f543c02d119797e93f212e4235e3c0a9e8f234a3fe2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e72923f8fcd21a8145b3f543c02d119797e93f212e4235e3c0a9e8f234a3fe2d","first_computed_at":"2026-07-05T05:49:59.979673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:49:59.979673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O75B/4V4Kw7JKNLyF5StLu2+6+Mive9ctmC5BHP+5lnOjO1sabjTKm3guDdWCkH+8u9qMwHGzjSwypfSVkooCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:49:59.980127Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.06023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e79f7ec3b0dda80df3b5be89b2f1635072401d6a2b834b5078fae9efe8cdb3ee","sha256:24a69973338b0e5c5cc787e66e6c62dbadd2f25ba7871afedf2591152595c4d2"],"state_sha256":"f9ec34045a4ed67a729ba51a275e0e79618690e161fb5a20f9f8f6a139b8a865"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xIO6gCuhpJ/WqYFHzIbTXxZu1Ns1jPN86xgBX/9xd4e0FNtzojVQBh6rT/ZBJwabrbcFE5zCNID6jBqJ0n+fAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T00:13:48.050881Z","bundle_sha256":"686519ffcb34dfd85b1e4926440fe63a3f0226b4e1525ff5dbc98fadb8d81b6a"}}