{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PM6ICCAVEI5U4QOLDSRO2TURZL","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":"a5fd32e5dbada8e0df9ca54949100ea0e7fb7095aa6d8f1c9a8db3d8b9662968","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-12T19:39:50Z","title_canon_sha256":"311412abfcaaa32597b1fbb416f9ebaa63be7d9316218ff4838cb7908413d2f0"},"schema_version":"1.0","source":{"id":"1810.01918","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.01918","created_at":"2026-05-18T00:04:06Z"},{"alias_kind":"arxiv_version","alias_value":"1810.01918v1","created_at":"2026-05-18T00:04:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.01918","created_at":"2026-05-18T00:04:06Z"},{"alias_kind":"pith_short_12","alias_value":"PM6ICCAVEI5U","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PM6ICCAVEI5U4QOL","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PM6ICCAV","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:360671997f84372344af4fd39dcae67e1e0f7a3b3dc44cfdcc9eb4dda177d599","target":"graph","created_at":"2026-05-18T00:04:06Z","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":"A recipe on how to engineer a band gap in the energy spectrum for the carriers in graphene is conveyed. It is supported by a series of numerical simulations inspired by an analytical result based on the opening of a band gap in periodically corrugated graphene, e.g. the buffer layer grown on SiC at high temperatures.","authors_text":"Hristiyan Aleksandrov, Stefan Kolev, Teodor Milenov, Victor Atanasov","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-12T19:39:50Z","title":"Band Gap Modulation of Graphene on SiC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.01918","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":"sha256:1809450ea9a5e80d39acdd770c899f0c8b2094c86164ced4a3d83f911039d484","target":"record","created_at":"2026-05-18T00:04:06Z","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":"a5fd32e5dbada8e0df9ca54949100ea0e7fb7095aa6d8f1c9a8db3d8b9662968","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-09-12T19:39:50Z","title_canon_sha256":"311412abfcaaa32597b1fbb416f9ebaa63be7d9316218ff4838cb7908413d2f0"},"schema_version":"1.0","source":{"id":"1810.01918","kind":"arxiv","version":1}},"canonical_sha256":"7b3c810815223b4e41cb1ca2ed4e91cade26303ac2d4ce2432d17c46c3e4f204","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b3c810815223b4e41cb1ca2ed4e91cade26303ac2d4ce2432d17c46c3e4f204","first_computed_at":"2026-05-18T00:04:06.977232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:06.977232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6ksB7BeQIXzi1Kevbdwe5gKns6kDVWphrAC9+Hy8HUUiO+hR4kqihyiYBH+wDUtw5IaQJCHZFwe3G1fInC5QBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:06.977909Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.01918","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1809450ea9a5e80d39acdd770c899f0c8b2094c86164ced4a3d83f911039d484","sha256:360671997f84372344af4fd39dcae67e1e0f7a3b3dc44cfdcc9eb4dda177d599"],"state_sha256":"6b8f54d5be8b3a37d160fb48694bc4097bfc500f4b8b5a6052c895dcc15bf401"}