{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:BWTJMTE5PA2IGP6KADZXK3ABBO","short_pith_number":"pith:BWTJMTE5","canonical_record":{"source":{"id":"1011.4167","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-18T10:29:02Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"626532934824655df3af62f6ba750096c0b5d393efa087e33d5185052743f372","abstract_canon_sha256":"12c6837b80a63cfddf15745e07af19d4d1889f282bb4919bdf1a1471e67dbd7f"},"schema_version":"1.0"},"canonical_sha256":"0da6964c9d7834833fca00f3756c010b9a10a7eb4d3224ed224bcd9b291c6e23","source":{"kind":"arxiv","id":"1011.4167","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4167","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4167v1","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4167","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"pith_short_12","alias_value":"BWTJMTE5PA2I","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BWTJMTE5PA2IGP6K","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BWTJMTE5","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:BWTJMTE5PA2IGP6KADZXK3ABBO","target":"record","payload":{"canonical_record":{"source":{"id":"1011.4167","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-18T10:29:02Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"626532934824655df3af62f6ba750096c0b5d393efa087e33d5185052743f372","abstract_canon_sha256":"12c6837b80a63cfddf15745e07af19d4d1889f282bb4919bdf1a1471e67dbd7f"},"schema_version":"1.0"},"canonical_sha256":"0da6964c9d7834833fca00f3756c010b9a10a7eb4d3224ed224bcd9b291c6e23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:36.337353Z","signature_b64":"bGKmox96dFCsFv3gcPgztO1WhbjULRekSVXROMIjxX1tUe04GssePZYojR0TMKw6p5XRXMaqg134SjzkT0TLCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0da6964c9d7834833fca00f3756c010b9a10a7eb4d3224ed224bcd9b291c6e23","last_reissued_at":"2026-05-18T02:23:36.336635Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:36.336635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.4167","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":"2026-05-18T02:23:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gqHB+W+X9ENCbxWExTkTxzEN6wcSn4+b2rLugJMrPhAPzTn5EsOLaylOn4/3NMrkzZArGgNxW7LWDhQizqnADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:23:43.479184Z"},"content_sha256":"bf1123c18f6cf77a99afbbe0174eda036899e203746731e37d60fba6e9043f39","schema_version":"1.0","event_id":"sha256:bf1123c18f6cf77a99afbbe0174eda036899e203746731e37d60fba6e9043f39"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:BWTJMTE5PA2IGP6KADZXK3ABBO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhanced stability of hydrogen atoms at the graphene/graphane interface of nanoribbons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. D. Hern\\'andez-Nieves, F. M. Peeters, S. Li, Z. M. Ao","submitted_at":"2010-11-18T10:29:02Z","abstract_excerpt":"The thermal stability of graphene/graphane nanoribbons (GGNRs) is investigated using density functional theory. It is found that the energy barriers for the diffusion of hydrogen atoms on the zigzag and armchair interfaces of GGNRs are 2.86 and 3.17 eV, respectively, while the diffusion barrier of an isolated H atom on pristine graphene was only ~0.3 eV. These results unambiguously demonstrate that the thermal stability of GGNRs can be enhanced significantly by increasing the hydrogen diffusion barriers through graphene/graphane interface engineering. This may provide new insights for viable a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4167","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":"2026-05-18T02:23:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1nlyvLuKjffuq4hZDRD0ZNY6uDAkFJqACnoIzInUcKtEtOvmD7LPyHI7w+el60bGxRKyGe2oARXwlHvh3PQmAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:23:43.479941Z"},"content_sha256":"de8cc0dde2892ca288642146f51e07e3c3add46a41412985161484465434d130","schema_version":"1.0","event_id":"sha256:de8cc0dde2892ca288642146f51e07e3c3add46a41412985161484465434d130"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/bundle.json","state_url":"https://pith.science/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/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":"2026-05-26T10:23:43Z","links":{"resolver":"https://pith.science/pith/BWTJMTE5PA2IGP6KADZXK3ABBO","bundle":"https://pith.science/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/bundle.json","state":"https://pith.science/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BWTJMTE5PA2IGP6KADZXK3ABBO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:BWTJMTE5PA2IGP6KADZXK3ABBO","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":"12c6837b80a63cfddf15745e07af19d4d1889f282bb4919bdf1a1471e67dbd7f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-18T10:29:02Z","title_canon_sha256":"626532934824655df3af62f6ba750096c0b5d393efa087e33d5185052743f372"},"schema_version":"1.0","source":{"id":"1011.4167","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4167","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4167v1","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4167","created_at":"2026-05-18T02:23:36Z"},{"alias_kind":"pith_short_12","alias_value":"BWTJMTE5PA2I","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BWTJMTE5PA2IGP6K","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BWTJMTE5","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:de8cc0dde2892ca288642146f51e07e3c3add46a41412985161484465434d130","target":"graph","created_at":"2026-05-18T02:23:36Z","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":"The thermal stability of graphene/graphane nanoribbons (GGNRs) is investigated using density functional theory. It is found that the energy barriers for the diffusion of hydrogen atoms on the zigzag and armchair interfaces of GGNRs are 2.86 and 3.17 eV, respectively, while the diffusion barrier of an isolated H atom on pristine graphene was only ~0.3 eV. These results unambiguously demonstrate that the thermal stability of GGNRs can be enhanced significantly by increasing the hydrogen diffusion barriers through graphene/graphane interface engineering. This may provide new insights for viable a","authors_text":"A. D. Hern\\'andez-Nieves, F. M. Peeters, S. Li, Z. M. Ao","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-18T10:29:02Z","title":"Enhanced stability of hydrogen atoms at the graphene/graphane interface of nanoribbons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4167","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:bf1123c18f6cf77a99afbbe0174eda036899e203746731e37d60fba6e9043f39","target":"record","created_at":"2026-05-18T02:23:36Z","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":"12c6837b80a63cfddf15745e07af19d4d1889f282bb4919bdf1a1471e67dbd7f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-11-18T10:29:02Z","title_canon_sha256":"626532934824655df3af62f6ba750096c0b5d393efa087e33d5185052743f372"},"schema_version":"1.0","source":{"id":"1011.4167","kind":"arxiv","version":1}},"canonical_sha256":"0da6964c9d7834833fca00f3756c010b9a10a7eb4d3224ed224bcd9b291c6e23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0da6964c9d7834833fca00f3756c010b9a10a7eb4d3224ed224bcd9b291c6e23","first_computed_at":"2026-05-18T02:23:36.336635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:36.336635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bGKmox96dFCsFv3gcPgztO1WhbjULRekSVXROMIjxX1tUe04GssePZYojR0TMKw6p5XRXMaqg134SjzkT0TLCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:36.337353Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.4167","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf1123c18f6cf77a99afbbe0174eda036899e203746731e37d60fba6e9043f39","sha256:de8cc0dde2892ca288642146f51e07e3c3add46a41412985161484465434d130"],"state_sha256":"6ca6f614ee73d731cd2126ee60610d6961c4a67c2aeea10342a05dbfd0e1adb5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WuidGnymv8sbINb5I99wCpNr+2fdeiAaVwRaDJsTVUO0MO1P/eeFqkZbrArZ+9Lx+8Zn/iKXhxsr8H7exlHuBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:23:43.483757Z","bundle_sha256":"28deb893cff07453db56d6044b0d06cf9f58f3b0f69ca7c81064421778f6e01b"}}