{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:EV73V7OZAH3MTPU5VCUWQNJHIF","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":"fbf9db06ee92056137c5d988b243aeb948f4a26d12e9ef6c38a006a7695da317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-04-08T18:10:30Z","title_canon_sha256":"5c4acb4cafdd7bf61b46fdc84bc8174cf97e0e76bacad9f8430aa2e435028ed9"},"schema_version":"1.0","source":{"id":"0904.1396","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1396","created_at":"2026-05-18T03:24:07Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1396v1","created_at":"2026-05-18T03:24:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1396","created_at":"2026-05-18T03:24:07Z"},{"alias_kind":"pith_short_12","alias_value":"EV73V7OZAH3M","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"EV73V7OZAH3MTPU5","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"EV73V7OZ","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:9a423e743fb74c7a62dcb0cd1aa2ef4254ff15e4752d289bf7e086fa8824bfbc","target":"graph","created_at":"2026-05-18T03:24:07Z","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":"Graphene sheets with regular perforations, dubbed as antidot lattices, have theoretically been predicted to have a number of interesting properties. Their recent experimental realization with lattice constants below 100 nanometers stresses the urgency of a thorough understanding of their electronic properties. In this work we perform calculations of the band structure for various hydrogen-passivated hole geometries using both spin-polarized density functional theory (DFT) and DFT based tight-binding (DFTB) and address the importance of relaxation of the structures using either method or a comb","authors_text":"Antti-Pekka Jauho, Joachim A. Fuerst, Mads Brandbyge, Thomas G. Pedersen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-04-08T18:10:30Z","title":"DFT study of graphene antidot lattices: The roles of geometry relaxation and spin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1396","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":"sha256:471880721db481355993d5438973d98d1806c38d831ffd183c532989a628e5a8","target":"record","created_at":"2026-05-18T03:24:07Z","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":"fbf9db06ee92056137c5d988b243aeb948f4a26d12e9ef6c38a006a7695da317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-04-08T18:10:30Z","title_canon_sha256":"5c4acb4cafdd7bf61b46fdc84bc8174cf97e0e76bacad9f8430aa2e435028ed9"},"schema_version":"1.0","source":{"id":"0904.1396","kind":"arxiv","version":1}},"canonical_sha256":"257fbafdd901f6c9be9da8a968352741574197df60a46c6f61c0661882cbf5ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"257fbafdd901f6c9be9da8a968352741574197df60a46c6f61c0661882cbf5ab","first_computed_at":"2026-05-18T03:24:07.052750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:07.052750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9+kBwQlIpylSUWflQE/DWwil1Xm/D2UZoKVO63VdlNXPWhY5d9kSLGM11PMs/g7tFWOJV+sqXhK8F1mf6oCABA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:07.053371Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1396","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:471880721db481355993d5438973d98d1806c38d831ffd183c532989a628e5a8","sha256:9a423e743fb74c7a62dcb0cd1aa2ef4254ff15e4752d289bf7e086fa8824bfbc"],"state_sha256":"28cc8384050d991aaa6c3ade99e178e6bda67ceb271f0d202bfb867d6cd1e076"}