{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ADVSQK2J45KWXX4GOMXLZV75JL","short_pith_number":"pith:ADVSQK2J","canonical_record":{"source":{"id":"1310.0775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-02T17:20:25Z","cross_cats_sorted":[],"title_canon_sha256":"31d3fe6397640b7e9fe8ae035116a7d1240486efa9a22c0b2b4a61bfc9991a12","abstract_canon_sha256":"c9a4b4a44a2e262fb56f49f2f3bd9619c267930bf17e5d496c0fcf6f88b38d33"},"schema_version":"1.0"},"canonical_sha256":"00eb282b49e7556bdf86732ebcd7fd4adbb524fb9b017f80050f8f0b52da7554","source":{"kind":"arxiv","id":"1310.0775","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.0775","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"arxiv_version","alias_value":"1310.0775v2","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0775","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"pith_short_12","alias_value":"ADVSQK2J45KW","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"ADVSQK2J45KWXX4G","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"ADVSQK2J","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ADVSQK2J45KWXX4GOMXLZV75JL","target":"record","payload":{"canonical_record":{"source":{"id":"1310.0775","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-02T17:20:25Z","cross_cats_sorted":[],"title_canon_sha256":"31d3fe6397640b7e9fe8ae035116a7d1240486efa9a22c0b2b4a61bfc9991a12","abstract_canon_sha256":"c9a4b4a44a2e262fb56f49f2f3bd9619c267930bf17e5d496c0fcf6f88b38d33"},"schema_version":"1.0"},"canonical_sha256":"00eb282b49e7556bdf86732ebcd7fd4adbb524fb9b017f80050f8f0b52da7554","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:54.383586Z","signature_b64":"S7YjiaTuWcpyDzsbtqjAj0WnIwgm+5+rytXskKSlFXUym8mHaXfGoD2s8e0P7eJAe11oQFxIaI8X8nbnJDxUDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00eb282b49e7556bdf86732ebcd7fd4adbb524fb9b017f80050f8f0b52da7554","last_reissued_at":"2026-05-18T02:54:54.383204Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:54.383204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.0775","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:54:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qkfz07MHZJdAS6P7QrjKRsDqI3PXb7ozgGXsxdc4mNFv4wfEc6AyDT2WakWE3jse8RPzb4OG6SOiHx5digptAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:30:39.929358Z"},"content_sha256":"d232fddd7c4448ca80f13a68da66cf34ffeff59775c0816652223432ccd21c05","schema_version":"1.0","event_id":"sha256:d232fddd7c4448ca80f13a68da66cf34ffeff59775c0816652223432ccd21c05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ADVSQK2J45KWXX4GOMXLZV75JL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct imaging of monovacancy-hydrogen complexes in single graphitic layer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Koichi Kusakabe, Manabu Kiguchi, Maxim Ziatdinov, Shintaro Fujii, Takehiko Mori, Toshiaki Enoki","submitted_at":"2013-10-02T17:20:25Z","abstract_excerpt":"Understanding how foreign chemical species bond to atomic vacancies in graphene layers can advance our ability to tailor the electronic and magnetic properties of defective graphenic materials. Here we use ultra-high vacuum scanning tunneling microscopy (UHV-STM) and density functional theory to identify the precise structure of hydrogenated single atomic vacancies in a topmost graphene layer of graphite and establish a connection between the details of hydrogen passivation and the electronic properties of a single atomic vacancy. Monovacancy-hydrogen complexes are prepared by sputtering of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0775","kind":"arxiv","version":2},"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":"2026-05-18T02:54:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XG0/Hd1We45jkjPQ6OkMV/yum/FwYGs1g3gKDF0T0198R82Md7pJCJOQnIQ259EEmNGz4Z/L9++iDkLFXTN0Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:30:39.929719Z"},"content_sha256":"617739b1fc27923d4ab7a691355061b2bb64713e2e64b69f2322674336bd5b21","schema_version":"1.0","event_id":"sha256:617739b1fc27923d4ab7a691355061b2bb64713e2e64b69f2322674336bd5b21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADVSQK2J45KWXX4GOMXLZV75JL/bundle.json","state_url":"https://pith.science/pith/ADVSQK2J45KWXX4GOMXLZV75JL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADVSQK2J45KWXX4GOMXLZV75JL/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":"2026-06-05T11:30:39Z","links":{"resolver":"https://pith.science/pith/ADVSQK2J45KWXX4GOMXLZV75JL","bundle":"https://pith.science/pith/ADVSQK2J45KWXX4GOMXLZV75JL/bundle.json","state":"https://pith.science/pith/ADVSQK2J45KWXX4GOMXLZV75JL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADVSQK2J45KWXX4GOMXLZV75JL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ADVSQK2J45KWXX4GOMXLZV75JL","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":"c9a4b4a44a2e262fb56f49f2f3bd9619c267930bf17e5d496c0fcf6f88b38d33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-02T17:20:25Z","title_canon_sha256":"31d3fe6397640b7e9fe8ae035116a7d1240486efa9a22c0b2b4a61bfc9991a12"},"schema_version":"1.0","source":{"id":"1310.0775","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.0775","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"arxiv_version","alias_value":"1310.0775v2","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0775","created_at":"2026-05-18T02:54:54Z"},{"alias_kind":"pith_short_12","alias_value":"ADVSQK2J45KW","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"ADVSQK2J45KWXX4G","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"ADVSQK2J","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:617739b1fc27923d4ab7a691355061b2bb64713e2e64b69f2322674336bd5b21","target":"graph","created_at":"2026-05-18T02:54:54Z","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":"Understanding how foreign chemical species bond to atomic vacancies in graphene layers can advance our ability to tailor the electronic and magnetic properties of defective graphenic materials. Here we use ultra-high vacuum scanning tunneling microscopy (UHV-STM) and density functional theory to identify the precise structure of hydrogenated single atomic vacancies in a topmost graphene layer of graphite and establish a connection between the details of hydrogen passivation and the electronic properties of a single atomic vacancy. Monovacancy-hydrogen complexes are prepared by sputtering of th","authors_text":"Koichi Kusakabe, Manabu Kiguchi, Maxim Ziatdinov, Shintaro Fujii, Takehiko Mori, Toshiaki Enoki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-02T17:20:25Z","title":"Direct imaging of monovacancy-hydrogen complexes in single graphitic layer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0775","kind":"arxiv","version":2},"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:d232fddd7c4448ca80f13a68da66cf34ffeff59775c0816652223432ccd21c05","target":"record","created_at":"2026-05-18T02:54:54Z","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":"c9a4b4a44a2e262fb56f49f2f3bd9619c267930bf17e5d496c0fcf6f88b38d33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-02T17:20:25Z","title_canon_sha256":"31d3fe6397640b7e9fe8ae035116a7d1240486efa9a22c0b2b4a61bfc9991a12"},"schema_version":"1.0","source":{"id":"1310.0775","kind":"arxiv","version":2}},"canonical_sha256":"00eb282b49e7556bdf86732ebcd7fd4adbb524fb9b017f80050f8f0b52da7554","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00eb282b49e7556bdf86732ebcd7fd4adbb524fb9b017f80050f8f0b52da7554","first_computed_at":"2026-05-18T02:54:54.383204Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:54.383204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S7YjiaTuWcpyDzsbtqjAj0WnIwgm+5+rytXskKSlFXUym8mHaXfGoD2s8e0P7eJAe11oQFxIaI8X8nbnJDxUDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:54.383586Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.0775","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d232fddd7c4448ca80f13a68da66cf34ffeff59775c0816652223432ccd21c05","sha256:617739b1fc27923d4ab7a691355061b2bb64713e2e64b69f2322674336bd5b21"],"state_sha256":"7f390197fc1f7257924bb558ffb5f40016914649397e3e191df38210abd19c5c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cK4sHvHVXwU+xdXVjGIYdECUv8ubk6BZ6XtmV5xboa/BPPO3iQATK39w+8Qt4iCWlloay0S7gXdyPioX1EiLAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T11:30:39.931765Z","bundle_sha256":"fc67729139e04fda9d28fce64598025f9509ca9ff3099a2ce98d35ff11ffacbe"}}