{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KPSLHNEMASA3VLEFUI4YLIWPJA","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":"5060565b09f43f15c7eae6774738a91b3962010dda10adf6cfe0abf15e1d4123","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-27T09:25:45Z","title_canon_sha256":"9cf221a38473f696976d36a3dbd4b918828bc46ec802d6bc3ab6a8121532103e"},"schema_version":"1.0","source":{"id":"2603.26201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.26201","created_at":"2026-06-01T01:03:52Z"},{"alias_kind":"arxiv_version","alias_value":"2603.26201v1","created_at":"2026-06-01T01:03:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.26201","created_at":"2026-06-01T01:03:52Z"},{"alias_kind":"pith_short_12","alias_value":"KPSLHNEMASA3","created_at":"2026-06-01T01:03:52Z"},{"alias_kind":"pith_short_16","alias_value":"KPSLHNEMASA3VLEF","created_at":"2026-06-01T01:03:52Z"},{"alias_kind":"pith_short_8","alias_value":"KPSLHNEM","created_at":"2026-06-01T01:03:52Z"}],"graph_snapshots":[{"event_id":"sha256:674e5f829389a93a4ade13b9df5aba36adca4bbcf4465db33e97d0a00c25cfa8","target":"graph","created_at":"2026-06-01T01:03:52Z","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/2603.26201/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Alumina (Al$_{2}$O$_{3}$) is a key material for thin-film growth and heterogeneous catalysis, where the atomic surface structure critically impacts performance. Using noncontact atomic force microscopy (nc-AFM) combined with density functional theory (DFT) calculations, we challenge the common assumption that the unreconstructed $\\alpha$-Al$_{2}$O$_{3}$(0001) surface is atomically flat and uniformly Al-terminated. This widely accepted bulk termination satisfies polarity compensation requirements but results in highly undercoordinated surface Al cations at the surface. Despite substantial inwar","authors_text":"Andrea Conti, David Kugler, Florian Mittendorfer, Jan Balajka, Johanna I. H\\\"utner-Reisch, Michael Schmid, Ulrike Diebold","cross_cats":["physics.chem-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-27T09:25:45Z","title":"The Unreconstructed {\\alpha}-Al$_{2}$O$_{3}$(0001) Surface is Inhomogeneous and Rough"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.26201","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":"sha256:1e53629fd014aed013971a04d5e9fec08d2e8e421b4a267af7d2776c07113663","target":"record","created_at":"2026-06-01T01:03:52Z","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":"5060565b09f43f15c7eae6774738a91b3962010dda10adf6cfe0abf15e1d4123","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-03-27T09:25:45Z","title_canon_sha256":"9cf221a38473f696976d36a3dbd4b918828bc46ec802d6bc3ab6a8121532103e"},"schema_version":"1.0","source":{"id":"2603.26201","kind":"arxiv","version":1}},"canonical_sha256":"53e4b3b48c0481baac85a23985a2cf48216e4981e5974dca72426cdf2a092b68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"53e4b3b48c0481baac85a23985a2cf48216e4981e5974dca72426cdf2a092b68","first_computed_at":"2026-06-01T01:03:52.241764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:03:52.241764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h/sY25E3zX7ZO04aJ7fGu3FivisP3LCJDl3w2pey8Rf+1kl9xJC4zb6nXRX1t5t7BXJecVDh1WhUyP2rhcaQAQ==","signature_status":"signed_v1","signed_at":"2026-06-01T01:03:52.242845Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.26201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e53629fd014aed013971a04d5e9fec08d2e8e421b4a267af7d2776c07113663","sha256:674e5f829389a93a4ade13b9df5aba36adca4bbcf4465db33e97d0a00c25cfa8"],"state_sha256":"89d75b4dafb37e76aee1f857f826591236c164ee853982d570e9493770c81850"}