{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:LO6DSMMCRA7KSGYCJEF5X3LDXB","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":"e1e4cf4013888fcb505bc9a895b333b0fbfd09642f8f93fd62a8aca3f1a757ce","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-10T21:38:48Z","title_canon_sha256":"4ceaac3ee2a4ef0ed0b21bf14c4d11318f96d90b8199733b8ba25af5aa359318"},"schema_version":"1.0","source":{"id":"1011.2510","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2510","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2510v2","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2510","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"LO6DSMMCRA7K","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LO6DSMMCRA7KSGYC","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LO6DSMMC","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:a9bcee56c2fe349434f7d03a279a7cd08d6b433c79eec23aa26964bad80e25a0","target":"graph","created_at":"2026-05-18T02:04:49Z","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":"The morphology of graphene formed on the (000-1) surface (the C-face) and the (0001) surface (the Si-face) of SiC, by annealing in ultra-high vacuum or in an argon environment, is studied by atomic force microscopy and low-energy electron microscopy. The graphene forms due to preferential sublimation of Si from the surface. In vacuum, this sublimation occurs much more rapidly for the C-face than the Si-face, so that 150 C lower annealing temperatures are required for the C-face to obtain films of comparable thickness. The evolution of the morphology as a function of graphene thickness is exami","authors_text":"Guowei He, Luxmi, N. Srivastava, R. M. Feenstra","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-10T21:38:48Z","title":"Comparison of Graphene Formation on C-face and Si-face SiC {0001} Surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2510","kind":"arxiv","version":2},"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:e585d578dc848c636294664648d757569a8d46223b4f8aa552a36e8bce8d32d1","target":"record","created_at":"2026-05-18T02:04:49Z","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":"e1e4cf4013888fcb505bc9a895b333b0fbfd09642f8f93fd62a8aca3f1a757ce","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-10T21:38:48Z","title_canon_sha256":"4ceaac3ee2a4ef0ed0b21bf14c4d11318f96d90b8199733b8ba25af5aa359318"},"schema_version":"1.0","source":{"id":"1011.2510","kind":"arxiv","version":2}},"canonical_sha256":"5bbc393182883ea91b02490bdbed63b8486e6c9f423154731b3e6d6fa41423ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bbc393182883ea91b02490bdbed63b8486e6c9f423154731b3e6d6fa41423ad","first_computed_at":"2026-05-18T02:04:49.106160Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:49.106160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E1h0MS3NJJbdOJYCGHr1SgDVlS5GWiF0W1BdGEvzwebspyYD0M9rsgZCdgM0vg8QwEAZnIybIkmRSWUhi1vhCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:49.106671Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2510","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e585d578dc848c636294664648d757569a8d46223b4f8aa552a36e8bce8d32d1","sha256:a9bcee56c2fe349434f7d03a279a7cd08d6b433c79eec23aa26964bad80e25a0"],"state_sha256":"9b6e03eaab752fee9e25ed8650cfe9322e9db14824f9cf3cffcdcfef6dff63e2"}