{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3YGQPNWBJBDP4V3YENLT72KVEG","short_pith_number":"pith:3YGQPNWB","canonical_record":{"source":{"id":"1106.3398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-06-17T07:15:14Z","cross_cats_sorted":[],"title_canon_sha256":"b3c980154082dad8d71bc03223d85dff17d3238ce9706f3e02e992f4ed59cc84","abstract_canon_sha256":"aeedda8d1bc0cba4a20c1b24b0beb27def104feaedacb787fdf26f2a325b179f"},"schema_version":"1.0"},"canonical_sha256":"de0d07b6c14846fe577823573fe9552195b246eb6faa92ff6d16f85358c146f0","source":{"kind":"arxiv","id":"1106.3398","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.3398","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"1106.3398v1","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.3398","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"3YGQPNWBJBDP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3YGQPNWBJBDP4V3Y","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3YGQPNWB","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3YGQPNWBJBDP4V3YENLT72KVEG","target":"record","payload":{"canonical_record":{"source":{"id":"1106.3398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-06-17T07:15:14Z","cross_cats_sorted":[],"title_canon_sha256":"b3c980154082dad8d71bc03223d85dff17d3238ce9706f3e02e992f4ed59cc84","abstract_canon_sha256":"aeedda8d1bc0cba4a20c1b24b0beb27def104feaedacb787fdf26f2a325b179f"},"schema_version":"1.0"},"canonical_sha256":"de0d07b6c14846fe577823573fe9552195b246eb6faa92ff6d16f85358c146f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:35.867090Z","signature_b64":"E/2nIPsXrWX5x8hkManAb4XB41Ocq5CT4T9U6cRh1cNCFdt0xA/5SKnwaCUmK7vASURbgHErPlIxZPNolXGWDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de0d07b6c14846fe577823573fe9552195b246eb6faa92ff6d16f85358c146f0","last_reissued_at":"2026-05-18T02:01:35.866349Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:35.866349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.3398","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"47WBI2rJGTFb/oTRNIIjPdh2xsaiaZED2QaOenyt3XT6pqsD3/0z1zC6NaCGd0N99elTFe4o4XsKDhqG1FU6Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:48:50.720488Z"},"content_sha256":"9d94457cb425f522c64427b5bda2ce63c63ad9e0ea85d112f024e3e58a06b896","schema_version":"1.0","event_id":"sha256:9d94457cb425f522c64427b5bda2ce63c63ad9e0ea85d112f024e3e58a06b896"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3YGQPNWBJBDP4V3YENLT72KVEG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Band gap engineering by functionalization of BN sheet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Bhattacharya, G. P. Das, S. Bhattacharya","submitted_at":"2011-06-17T07:15:14Z","abstract_excerpt":"From first principles calculations, we investigate the stability and physical properties of single layer h-BN sheet chemically functionalized by various groups viz. H, F, OH, CH3, CHO, CN, NH2 etc. We find that full functionalization of h-BN sheet with these groups lead to decrease in its electronic band gap, albeit to different magnitudes varying from 0.3 eV to 3.1 eV, depending upon the dopant group. Functionalization by CHO group, in particular, leads to a sharp decrease in the electronic band gap of the pristine BN sheet to ~ 0.3 eV, which is congenial for its usage in transistor based dev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.3398","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V5OUBVxO7mR3BRzCr2U7TV7TA+lOeGbav92L6b1eA25jbTy21is2fxA4FVlCRTBjbqUV3kQZ46mJzXk19ByxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:48:50.721176Z"},"content_sha256":"0a27517c1b09565cb629c7ec20fb4e0336c10146da1da209fba24fcaaff61ff8","schema_version":"1.0","event_id":"sha256:0a27517c1b09565cb629c7ec20fb4e0336c10146da1da209fba24fcaaff61ff8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3YGQPNWBJBDP4V3YENLT72KVEG/bundle.json","state_url":"https://pith.science/pith/3YGQPNWBJBDP4V3YENLT72KVEG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3YGQPNWBJBDP4V3YENLT72KVEG/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T08:48:50Z","links":{"resolver":"https://pith.science/pith/3YGQPNWBJBDP4V3YENLT72KVEG","bundle":"https://pith.science/pith/3YGQPNWBJBDP4V3YENLT72KVEG/bundle.json","state":"https://pith.science/pith/3YGQPNWBJBDP4V3YENLT72KVEG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3YGQPNWBJBDP4V3YENLT72KVEG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3YGQPNWBJBDP4V3YENLT72KVEG","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":"aeedda8d1bc0cba4a20c1b24b0beb27def104feaedacb787fdf26f2a325b179f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-06-17T07:15:14Z","title_canon_sha256":"b3c980154082dad8d71bc03223d85dff17d3238ce9706f3e02e992f4ed59cc84"},"schema_version":"1.0","source":{"id":"1106.3398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.3398","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"1106.3398v1","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.3398","created_at":"2026-05-18T02:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"3YGQPNWBJBDP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3YGQPNWBJBDP4V3Y","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3YGQPNWB","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:0a27517c1b09565cb629c7ec20fb4e0336c10146da1da209fba24fcaaff61ff8","target":"graph","created_at":"2026-05-18T02:01:35Z","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":"From first principles calculations, we investigate the stability and physical properties of single layer h-BN sheet chemically functionalized by various groups viz. H, F, OH, CH3, CHO, CN, NH2 etc. We find that full functionalization of h-BN sheet with these groups lead to decrease in its electronic band gap, albeit to different magnitudes varying from 0.3 eV to 3.1 eV, depending upon the dopant group. Functionalization by CHO group, in particular, leads to a sharp decrease in the electronic band gap of the pristine BN sheet to ~ 0.3 eV, which is congenial for its usage in transistor based dev","authors_text":"A. Bhattacharya, G. P. Das, S. Bhattacharya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-06-17T07:15:14Z","title":"Band gap engineering by functionalization of BN sheet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.3398","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":"sha256:9d94457cb425f522c64427b5bda2ce63c63ad9e0ea85d112f024e3e58a06b896","target":"record","created_at":"2026-05-18T02:01:35Z","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":"aeedda8d1bc0cba4a20c1b24b0beb27def104feaedacb787fdf26f2a325b179f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-06-17T07:15:14Z","title_canon_sha256":"b3c980154082dad8d71bc03223d85dff17d3238ce9706f3e02e992f4ed59cc84"},"schema_version":"1.0","source":{"id":"1106.3398","kind":"arxiv","version":1}},"canonical_sha256":"de0d07b6c14846fe577823573fe9552195b246eb6faa92ff6d16f85358c146f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de0d07b6c14846fe577823573fe9552195b246eb6faa92ff6d16f85358c146f0","first_computed_at":"2026-05-18T02:01:35.866349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:35.866349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E/2nIPsXrWX5x8hkManAb4XB41Ocq5CT4T9U6cRh1cNCFdt0xA/5SKnwaCUmK7vASURbgHErPlIxZPNolXGWDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:35.867090Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.3398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d94457cb425f522c64427b5bda2ce63c63ad9e0ea85d112f024e3e58a06b896","sha256:0a27517c1b09565cb629c7ec20fb4e0336c10146da1da209fba24fcaaff61ff8"],"state_sha256":"0c13205fe48566da1549b9ab4709317cfc0858885d8e41af14adc9b34063267f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hCUKzjfYEdVWiuGVtpYRVm7WZFOhf14WEpNRNhSf3pzHHGiocoPldmL6LGcmXGrel19HrEF2boTS1aJzZ3XJDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:48:50.729795Z","bundle_sha256":"3c97db277e59ee7edf67607a1fe9bb895986e3680acd69eb7344e2987d078247"}}