{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:SCKYHBT5FGRTWMHWWKZGCT5OS5","short_pith_number":"pith:SCKYHBT5","canonical_record":{"source":{"id":"1009.3847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-20T15:05:12Z","cross_cats_sorted":[],"title_canon_sha256":"23efdabdbeb9622b0fa3dfed01d8423782787e4a003661c749af96cf3d554065","abstract_canon_sha256":"8fc6996d075ab369e4f1bdf2b1033bf75c2f7eb57bbfed66805f805c9fd2a0c3"},"schema_version":"1.0"},"canonical_sha256":"909583867d29a33b30f6b2b2614fae97720dea93f3ee3703383758ec00a6536b","source":{"kind":"arxiv","id":"1009.3847","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3847","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3847v1","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3847","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"pith_short_12","alias_value":"SCKYHBT5FGRT","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SCKYHBT5FGRTWMHW","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SCKYHBT5","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:SCKYHBT5FGRTWMHWWKZGCT5OS5","target":"record","payload":{"canonical_record":{"source":{"id":"1009.3847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-20T15:05:12Z","cross_cats_sorted":[],"title_canon_sha256":"23efdabdbeb9622b0fa3dfed01d8423782787e4a003661c749af96cf3d554065","abstract_canon_sha256":"8fc6996d075ab369e4f1bdf2b1033bf75c2f7eb57bbfed66805f805c9fd2a0c3"},"schema_version":"1.0"},"canonical_sha256":"909583867d29a33b30f6b2b2614fae97720dea93f3ee3703383758ec00a6536b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:54.254252Z","signature_b64":"lAG1iRuxjiXd1p3iKqkMCJbNgRk+O8IvUlseIGf6u2GfqB60xV9twCxFgUV3Om+YWiBlow/DIt+XE6GfxsaCBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"909583867d29a33b30f6b2b2614fae97720dea93f3ee3703383758ec00a6536b","last_reissued_at":"2026-05-18T04:07:54.253735Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:54.253735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.3847","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":"2026-05-18T04:07:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HKbKHm0v1QqEGfecXeUEWG/HPfn3XgxkLQikPlfwD0Nj5+uMtN79sOOrHrZ0ElWFIESEa3iUH2sZz7Ya0podDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:05:11.888361Z"},"content_sha256":"ab3a6841d00a21b817aa4d098e6be3f6e7fd26308fa85073a93ad1ba8ca10495","schema_version":"1.0","event_id":"sha256:ab3a6841d00a21b817aa4d098e6be3f6e7fd26308fa85073a93ad1ba8ca10495"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:SCKYHBT5FGRTWMHWWKZGCT5OS5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles investigation of graphene fluoride and graphane","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. D. Hernandez-Nieves, B. Partoens, F. M. Peeters, H. Peelaers, O. Leenaerts","submitted_at":"2010-09-20T15:05:12Z","abstract_excerpt":"Different stoichiometric configurations of graphane and graphene fluoride are investigated within density functional theory. Their structural and electronic properties are compared, and we indicate the similarities and differences among the various configurations. Large differences between graphane and graphene fluoride are found that are caused by the presence of charges on the fluorine atoms. A new configuration that is more stable than the boat configuration is predicted for graphene fluoride. We also perform GW calculations for the electronic band gap of both graphene derivatives. These ba"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3847","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":"2026-05-18T04:07:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ANN7lWob1ammQOEncfpWNh4fuEjEJNPPE8taPR8po3FRpIM1yLTXvwYfOKUYwp6hsehF0TKqhPBzAxx1XaD0Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:05:11.888720Z"},"content_sha256":"f04a75c7e5df6a6c8a7d2b144d1689122b44c12792efbfeeda127686ab761593","schema_version":"1.0","event_id":"sha256:f04a75c7e5df6a6c8a7d2b144d1689122b44c12792efbfeeda127686ab761593"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/bundle.json","state_url":"https://pith.science/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/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":"2026-05-28T12:05:11Z","links":{"resolver":"https://pith.science/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5","bundle":"https://pith.science/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/bundle.json","state":"https://pith.science/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SCKYHBT5FGRTWMHWWKZGCT5OS5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:SCKYHBT5FGRTWMHWWKZGCT5OS5","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":"8fc6996d075ab369e4f1bdf2b1033bf75c2f7eb57bbfed66805f805c9fd2a0c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-20T15:05:12Z","title_canon_sha256":"23efdabdbeb9622b0fa3dfed01d8423782787e4a003661c749af96cf3d554065"},"schema_version":"1.0","source":{"id":"1009.3847","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3847","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3847v1","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3847","created_at":"2026-05-18T04:07:54Z"},{"alias_kind":"pith_short_12","alias_value":"SCKYHBT5FGRT","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SCKYHBT5FGRTWMHW","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SCKYHBT5","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:f04a75c7e5df6a6c8a7d2b144d1689122b44c12792efbfeeda127686ab761593","target":"graph","created_at":"2026-05-18T04:07:54Z","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":"Different stoichiometric configurations of graphane and graphene fluoride are investigated within density functional theory. Their structural and electronic properties are compared, and we indicate the similarities and differences among the various configurations. Large differences between graphane and graphene fluoride are found that are caused by the presence of charges on the fluorine atoms. A new configuration that is more stable than the boat configuration is predicted for graphene fluoride. We also perform GW calculations for the electronic band gap of both graphene derivatives. These ba","authors_text":"A. D. Hernandez-Nieves, B. Partoens, F. M. Peeters, H. Peelaers, O. Leenaerts","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-20T15:05:12Z","title":"First-principles investigation of graphene fluoride and graphane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3847","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:ab3a6841d00a21b817aa4d098e6be3f6e7fd26308fa85073a93ad1ba8ca10495","target":"record","created_at":"2026-05-18T04:07:54Z","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":"8fc6996d075ab369e4f1bdf2b1033bf75c2f7eb57bbfed66805f805c9fd2a0c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-20T15:05:12Z","title_canon_sha256":"23efdabdbeb9622b0fa3dfed01d8423782787e4a003661c749af96cf3d554065"},"schema_version":"1.0","source":{"id":"1009.3847","kind":"arxiv","version":1}},"canonical_sha256":"909583867d29a33b30f6b2b2614fae97720dea93f3ee3703383758ec00a6536b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"909583867d29a33b30f6b2b2614fae97720dea93f3ee3703383758ec00a6536b","first_computed_at":"2026-05-18T04:07:54.253735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:54.253735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lAG1iRuxjiXd1p3iKqkMCJbNgRk+O8IvUlseIGf6u2GfqB60xV9twCxFgUV3Om+YWiBlow/DIt+XE6GfxsaCBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:54.254252Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.3847","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab3a6841d00a21b817aa4d098e6be3f6e7fd26308fa85073a93ad1ba8ca10495","sha256:f04a75c7e5df6a6c8a7d2b144d1689122b44c12792efbfeeda127686ab761593"],"state_sha256":"1fe493706c5e5f137a3a91a0554d0b49ec030bdd802791ff0fe29621f8d87b64"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5dzK/N/5HSJrLt/LaHnaYYye/PzpbYObsUYzxfRRc9mx17bvfppU3KeWUvOJK4BHBPLKHYX8+PECKTrBOVjBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T12:05:11.890640Z","bundle_sha256":"7f30db7e83f8874acbb75aa2fdcda08dc395746985c591f6efc09b7876086873"}}