{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:CWYKOCSGEJH2SNGGR43TU5TLYP","short_pith_number":"pith:CWYKOCSG","schema_version":"1.0","canonical_sha256":"15b0a70a46224fa934c68f373a766bc3ca2fec1c9cfe53261bc9613693cc6aec","source":{"kind":"arxiv","id":"1103.3449","version":1},"attestation_state":"computed","paper":{"title":"Bromination of Graphene and Graphite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Okotrub, A. Yaya, C. P. Ewels, I. Suarez-Martinez, L. Bulusheva, Ph. Wagner, P. R. Briddon, S. Lefrant","submitted_at":"2011-03-17T16:15:01Z","abstract_excerpt":"We present a density functional theory study of low density bromination of graphene and graphite, finding significantly different behaviour in these two materials. On graphene we find a new Br2 form where the molecule sits perpendicular to the graphene sheet with an extremely strong molecular dipole. The resultant Br+-Br- has an empty pz-orbital located in the graphene electronic pi-cloud. Bromination opens a small (86meV) band gap and strongly dopes the graphene. In contrast, in graphite we find Br2 is most stable parallel to the carbon layers with a slightly weaker associated charge transfer"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1103.3449","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-17T16:15:01Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"b17585ae295ac26181c400d0f1466594dc68c24887b02cccf607e0f2fc62e808","abstract_canon_sha256":"a90ecedf87254e4f4d910cc87df4096024fae3961d5dd609ead1e00388c03b6f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:33.686554Z","signature_b64":"uSrwriaSu5v56BzdNbK7vNRepuyQyfqSH4FGm43axxmzosOpIGGkLvWMSmFNvQjjuLRG89cBjHKbtap9JSNjCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15b0a70a46224fa934c68f373a766bc3ca2fec1c9cfe53261bc9613693cc6aec","last_reissued_at":"2026-05-18T04:26:33.685873Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:33.685873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bromination of Graphene and Graphite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Okotrub, A. Yaya, C. P. Ewels, I. Suarez-Martinez, L. Bulusheva, Ph. Wagner, P. R. Briddon, S. Lefrant","submitted_at":"2011-03-17T16:15:01Z","abstract_excerpt":"We present a density functional theory study of low density bromination of graphene and graphite, finding significantly different behaviour in these two materials. On graphene we find a new Br2 form where the molecule sits perpendicular to the graphene sheet with an extremely strong molecular dipole. The resultant Br+-Br- has an empty pz-orbital located in the graphene electronic pi-cloud. Bromination opens a small (86meV) band gap and strongly dopes the graphene. In contrast, in graphite we find Br2 is most stable parallel to the carbon layers with a slightly weaker associated charge transfer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3449","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1103.3449","created_at":"2026-05-18T04:26:33.685969+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.3449v1","created_at":"2026-05-18T04:26:33.685969+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3449","created_at":"2026-05-18T04:26:33.685969+00:00"},{"alias_kind":"pith_short_12","alias_value":"CWYKOCSGEJH2","created_at":"2026-05-18T12:26:26.731475+00:00"},{"alias_kind":"pith_short_16","alias_value":"CWYKOCSGEJH2SNGG","created_at":"2026-05-18T12:26:26.731475+00:00"},{"alias_kind":"pith_short_8","alias_value":"CWYKOCSG","created_at":"2026-05-18T12:26:26.731475+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP","json":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP.json","graph_json":"https://pith.science/api/pith-number/CWYKOCSGEJH2SNGGR43TU5TLYP/graph.json","events_json":"https://pith.science/api/pith-number/CWYKOCSGEJH2SNGGR43TU5TLYP/events.json","paper":"https://pith.science/paper/CWYKOCSG"},"agent_actions":{"view_html":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP","download_json":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP.json","view_paper":"https://pith.science/paper/CWYKOCSG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.3449&json=true","fetch_graph":"https://pith.science/api/pith-number/CWYKOCSGEJH2SNGGR43TU5TLYP/graph.json","fetch_events":"https://pith.science/api/pith-number/CWYKOCSGEJH2SNGGR43TU5TLYP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP/action/storage_attestation","attest_author":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP/action/author_attestation","sign_citation":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP/action/citation_signature","submit_replication":"https://pith.science/pith/CWYKOCSGEJH2SNGGR43TU5TLYP/action/replication_record"}},"created_at":"2026-05-18T04:26:33.685969+00:00","updated_at":"2026-05-18T04:26:33.685969+00:00"}