{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:V7ERD7VYSZZEJKJ4ERDMOCGVVF","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":"bafd102587a53e6b3739e409bfdbcbad77c6ac28475db58b80da1d12c3936247","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-24T11:53:23Z","title_canon_sha256":"9ae595ad227917ef3312b8bdba3884ba7986e17889eb0882f50488f943389588"},"schema_version":"1.0","source":{"id":"2407.17194","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.17194","created_at":"2026-07-05T08:48:03Z"},{"alias_kind":"arxiv_version","alias_value":"2407.17194v1","created_at":"2026-07-05T08:48:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.17194","created_at":"2026-07-05T08:48:03Z"},{"alias_kind":"pith_short_12","alias_value":"V7ERD7VYSZZE","created_at":"2026-07-05T08:48:03Z"},{"alias_kind":"pith_short_16","alias_value":"V7ERD7VYSZZEJKJ4","created_at":"2026-07-05T08:48:03Z"},{"alias_kind":"pith_short_8","alias_value":"V7ERD7VY","created_at":"2026-07-05T08:48:03Z"}],"graph_snapshots":[{"event_id":"sha256:92f40609b638db1ee3cca8f4eef03c7806012904e269defbca7f55dfeca8ceb4","target":"graph","created_at":"2026-07-05T08:48:03Z","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/2407.17194/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sapphire is a technologically highly relevant material, but it poses many challenges to performing epitaxial thin-film deposition. We have identified and applied the conditions for adsorption-controlled homoepitaxial growth of c-plane sapphire. The films thus grown are atomically smooth, have a controlled termination, and are of outstanding crystallinity. Their chemical purity exceeds that of the substrates. The films exhibit exceptional optical properties such as a single-crystal-like bandgap and a low density of F+ centers.","authors_text":"Darrell G. Schlom, Felix V.E. Hensling, Hongguang Wang, Jacob Steele, Jochen Mannhart, Johan Eckl-Haese, Ksenia S. Rabinovich, Lena N. Majer, Luca Camuti, Patrick Vogt, Peter A. van Aken, Sander Smink, Takeyoshi Onuma, Tolga Acart\\\"urk, Ulrich Starke, Wolfgang Braun","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-24T11:53:23Z","title":"Adsorption-controlled Growth of Homoepitaxial c-plane Sapphire Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.17194","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":"sha256:739445426f23e898e93b22104f38b25966f1daaf3b186c9911a6012b7a45647c","target":"record","created_at":"2026-07-05T08:48:03Z","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":"bafd102587a53e6b3739e409bfdbcbad77c6ac28475db58b80da1d12c3936247","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-07-24T11:53:23Z","title_canon_sha256":"9ae595ad227917ef3312b8bdba3884ba7986e17889eb0882f50488f943389588"},"schema_version":"1.0","source":{"id":"2407.17194","kind":"arxiv","version":1}},"canonical_sha256":"afc911feb8967244a93c2446c708d5a95cd9be604a4c424b8f876a68eb845d1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afc911feb8967244a93c2446c708d5a95cd9be604a4c424b8f876a68eb845d1e","first_computed_at":"2026-07-05T08:48:03.720690Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:48:03.720690Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"reCzjNYXotzujEGfhCBwlQHKZVF12oNB31+fDMz8D2Nvzx3GiN2Z5OjJPkygNOGI55w7sbYFJoglbt8NL6GfAA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:48:03.721122Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.17194","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:739445426f23e898e93b22104f38b25966f1daaf3b186c9911a6012b7a45647c","sha256:92f40609b638db1ee3cca8f4eef03c7806012904e269defbca7f55dfeca8ceb4"],"state_sha256":"46ec26d120d6c9698ec88b9fa9be52fb85a9cc4f36f4c60076a98ccdac237399"}