{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:TGS2S36Z5NF25GPYHCZM42DW6M","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":"757ae39d9e59fd4d53b274819751167d5a5bbdba9756f1ef1b108699b9cf9225","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-01T19:51:37Z","title_canon_sha256":"d33007faae91a0620273fd650fade639810a41cea2762b1c70881c3c97a78a9f"},"schema_version":"1.0","source":{"id":"1404.0368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.0368","created_at":"2026-05-18T02:55:04Z"},{"alias_kind":"arxiv_version","alias_value":"1404.0368v1","created_at":"2026-05-18T02:55:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.0368","created_at":"2026-05-18T02:55:04Z"},{"alias_kind":"pith_short_12","alias_value":"TGS2S36Z5NF2","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TGS2S36Z5NF25GPY","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TGS2S36Z","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:d3dff46a48da72ae419c36d7575207a7040909fa6dd91949a92783e3836b7a31","target":"graph","created_at":"2026-05-18T02:55:04Z","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":"We investigate the electronic structure and lattice stability of pristine and functionalized (with either hydrogen or oxygen) $\\alpha$-graphyne systems. We identify lattice instabilities due to soft-phonon modes, and describe two mechanisms leading to gap opening in the Dirac-fermion electronic spectrum of these systems: symmetry breaking, connected with the lattice instabilities, and partial incorporation of an $sp^3$-hybrid character in the covalent-bonding network of a buckled hydrogenated $\\alpha$-graphyne lattice that retains the symmetries of the parent pristine $\\alpha$-graphyne. In the","authors_text":"E. A. Moujaes, R. Longuinhos, R. W. Nunes, S. S. Alexandre","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-01T19:51:37Z","title":"Theoretical chemistry of $\\alpha$-graphyne: functionalization, symmetry breaking, and generation of Dirac-fermion mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.0368","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:bce667740a432cadc9f4415208cb6f4538d60edcc3b0fe8ab33b4771b1c5716a","target":"record","created_at":"2026-05-18T02:55:04Z","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":"757ae39d9e59fd4d53b274819751167d5a5bbdba9756f1ef1b108699b9cf9225","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-01T19:51:37Z","title_canon_sha256":"d33007faae91a0620273fd650fade639810a41cea2762b1c70881c3c97a78a9f"},"schema_version":"1.0","source":{"id":"1404.0368","kind":"arxiv","version":1}},"canonical_sha256":"99a5a96fd9eb4bae99f838b2ce6876f3380be4e090697d0bf52beba3110a2943","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99a5a96fd9eb4bae99f838b2ce6876f3380be4e090697d0bf52beba3110a2943","first_computed_at":"2026-05-18T02:55:04.545104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:55:04.545104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"28zjcg5mOeLWqECpZrbEsNfeJv48ZB/d1koeSY+XtiJLQBwZhMabgR/YB/TMGUxHwBHnMwwRLr9H4EKKJ6WpBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:55:04.545829Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.0368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bce667740a432cadc9f4415208cb6f4538d60edcc3b0fe8ab33b4771b1c5716a","sha256:d3dff46a48da72ae419c36d7575207a7040909fa6dd91949a92783e3836b7a31"],"state_sha256":"4a9b264ad046eadd71b6eea6a028c1fea10c0540761f34e674b89c18872a5d57"}