{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GNTXLH566JAVFNK2K2ZUXI6XHU","short_pith_number":"pith:GNTXLH56","canonical_record":{"source":{"id":"1706.03052","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-09T17:37:04Z","cross_cats_sorted":[],"title_canon_sha256":"186c058ed724d9976bc8c5ceec919e662b4bc392568929ba393f997dd51b9066","abstract_canon_sha256":"3236b5d72f7f39bb410b3beb8d76c73ca677e6810f1dd4cfaf412a0cd8546af4"},"schema_version":"1.0"},"canonical_sha256":"3367759fbef24152b55a56b34ba3d73d3f0aa9ab9b6f0a6f23a8110d26ced0b2","source":{"kind":"arxiv","id":"1706.03052","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03052","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03052v3","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03052","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"GNTXLH566JAV","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GNTXLH566JAVFNK2","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GNTXLH56","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GNTXLH566JAVFNK2K2ZUXI6XHU","target":"record","payload":{"canonical_record":{"source":{"id":"1706.03052","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-09T17:37:04Z","cross_cats_sorted":[],"title_canon_sha256":"186c058ed724d9976bc8c5ceec919e662b4bc392568929ba393f997dd51b9066","abstract_canon_sha256":"3236b5d72f7f39bb410b3beb8d76c73ca677e6810f1dd4cfaf412a0cd8546af4"},"schema_version":"1.0"},"canonical_sha256":"3367759fbef24152b55a56b34ba3d73d3f0aa9ab9b6f0a6f23a8110d26ced0b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:30.238579Z","signature_b64":"OLdJAFRKnJrPYesbACehiyZQDQ5Saxx9Z4WXAVNTXHLa+CvVELN6XbeIBVTeGCsxHE54TG/XEFXXHGblHCJoAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3367759fbef24152b55a56b34ba3d73d3f0aa9ab9b6f0a6f23a8110d26ced0b2","last_reissued_at":"2026-05-18T00:19:30.237959Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:30.237959Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.03052","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rffhgkEZS37+iEsfvo8QePZW5cSlPsJR7qA2W7qo9iI6yDScb09OtliAXa8+ZQz+cLe7O1F3lLDGTuwi96slDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T00:41:33.842447Z"},"content_sha256":"ce4c7631c58093d4d4c609e9737b0ce8489d045f01afc3acdb19ee46c200aed0","schema_version":"1.0","event_id":"sha256:ce4c7631c58093d4d4c609e9737b0ce8489d045f01afc3acdb19ee46c200aed0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GNTXLH566JAVFNK2K2ZUXI6XHU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Free energy landscape of dissociative adsorption of methane on ideal and defected graphene from ab initio simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Jacek A. Majewski, Mateusz Wlaz{\\l}o","submitted_at":"2017-06-09T17:37:04Z","abstract_excerpt":"We study the dissociative adsorption of methane at the surface of graphene. Free energy profiles, which include activation energies for different steps of the reaction, are computed from constrained ab initio molecular dynamics. At 300 K, the reaction barriers are much lower than experimental bond dissociation energies of gaseous methane, strongly indicating that graphene surface acts as a catalyst of methane decomposition. On the other hand, the barriers are still much higher than on nickel surface. Methane dissociation therefore occurs at a higher rate on nickel than on graphene. This reacti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03052","kind":"arxiv","version":3},"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":"2026-05-18T00:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uWsebh+CznFzsEIxLyhVNHRiGKv3JHYT5qgP5eXDiqIZu5BRl7wRl/TUEgetJM7vCkCe2xUBXLIV4ZJwX1coDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T00:41:33.843087Z"},"content_sha256":"826d81007184feb54c4bacd66560c112affe3d6a4f5f7e4e3e07e1e49462b4a2","schema_version":"1.0","event_id":"sha256:826d81007184feb54c4bacd66560c112affe3d6a4f5f7e4e3e07e1e49462b4a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/bundle.json","state_url":"https://pith.science/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/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":"2026-05-22T00:41:33Z","links":{"resolver":"https://pith.science/pith/GNTXLH566JAVFNK2K2ZUXI6XHU","bundle":"https://pith.science/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/bundle.json","state":"https://pith.science/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GNTXLH566JAVFNK2K2ZUXI6XHU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GNTXLH566JAVFNK2K2ZUXI6XHU","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":"3236b5d72f7f39bb410b3beb8d76c73ca677e6810f1dd4cfaf412a0cd8546af4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-09T17:37:04Z","title_canon_sha256":"186c058ed724d9976bc8c5ceec919e662b4bc392568929ba393f997dd51b9066"},"schema_version":"1.0","source":{"id":"1706.03052","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03052","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03052v3","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03052","created_at":"2026-05-18T00:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"GNTXLH566JAV","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GNTXLH566JAVFNK2","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GNTXLH56","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:826d81007184feb54c4bacd66560c112affe3d6a4f5f7e4e3e07e1e49462b4a2","target":"graph","created_at":"2026-05-18T00:19:30Z","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":"We study the dissociative adsorption of methane at the surface of graphene. Free energy profiles, which include activation energies for different steps of the reaction, are computed from constrained ab initio molecular dynamics. At 300 K, the reaction barriers are much lower than experimental bond dissociation energies of gaseous methane, strongly indicating that graphene surface acts as a catalyst of methane decomposition. On the other hand, the barriers are still much higher than on nickel surface. Methane dissociation therefore occurs at a higher rate on nickel than on graphene. This reacti","authors_text":"Jacek A. Majewski, Mateusz Wlaz{\\l}o","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-09T17:37:04Z","title":"Free energy landscape of dissociative adsorption of methane on ideal and defected graphene from ab initio simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03052","kind":"arxiv","version":3},"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:ce4c7631c58093d4d4c609e9737b0ce8489d045f01afc3acdb19ee46c200aed0","target":"record","created_at":"2026-05-18T00:19:30Z","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":"3236b5d72f7f39bb410b3beb8d76c73ca677e6810f1dd4cfaf412a0cd8546af4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-09T17:37:04Z","title_canon_sha256":"186c058ed724d9976bc8c5ceec919e662b4bc392568929ba393f997dd51b9066"},"schema_version":"1.0","source":{"id":"1706.03052","kind":"arxiv","version":3}},"canonical_sha256":"3367759fbef24152b55a56b34ba3d73d3f0aa9ab9b6f0a6f23a8110d26ced0b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3367759fbef24152b55a56b34ba3d73d3f0aa9ab9b6f0a6f23a8110d26ced0b2","first_computed_at":"2026-05-18T00:19:30.237959Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:30.237959Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OLdJAFRKnJrPYesbACehiyZQDQ5Saxx9Z4WXAVNTXHLa+CvVELN6XbeIBVTeGCsxHE54TG/XEFXXHGblHCJoAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:30.238579Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03052","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce4c7631c58093d4d4c609e9737b0ce8489d045f01afc3acdb19ee46c200aed0","sha256:826d81007184feb54c4bacd66560c112affe3d6a4f5f7e4e3e07e1e49462b4a2"],"state_sha256":"352b8fe4e5b9675728b7a732df7493beaeb013d46ba464ea173152c15e76a10f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/RVOhqMGJxtBUDkngkkVMSHhpSmG0jnrrQ2549ZKKcA27pi35A6u28YDB5mciDYjMouDj60swd/8WSGdtgnJCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T00:41:33.846399Z","bundle_sha256":"c3d8666c8b28bf78fc45c011dbe3fc526705551ea0dc1d896afa50fc69ae9d4d"}}