{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6A3QYHY4AGHYSNFAQPJTSYW4BX","short_pith_number":"pith:6A3QYHY4","canonical_record":{"source":{"id":"1809.00517","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-03T09:38:56Z","cross_cats_sorted":[],"title_canon_sha256":"e5c82c2f58fa955a8e232c5cb3e5d726e7fbfbdaf9e498fb7bb1ddbf84dcc7c0","abstract_canon_sha256":"de44e94990da6eeee6a6fd1dc7becb5337c35fb9a48f4cbf8b82de2d40c3107c"},"schema_version":"1.0"},"canonical_sha256":"f0370c1f1c018f8934a083d33962dc0df3f08bb297693d4375d058bfecc22bc7","source":{"kind":"arxiv","id":"1809.00517","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00517","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00517v2","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00517","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"6A3QYHY4AGHY","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6A3QYHY4AGHYSNFA","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6A3QYHY4","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6A3QYHY4AGHYSNFAQPJTSYW4BX","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00517","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-03T09:38:56Z","cross_cats_sorted":[],"title_canon_sha256":"e5c82c2f58fa955a8e232c5cb3e5d726e7fbfbdaf9e498fb7bb1ddbf84dcc7c0","abstract_canon_sha256":"de44e94990da6eeee6a6fd1dc7becb5337c35fb9a48f4cbf8b82de2d40c3107c"},"schema_version":"1.0"},"canonical_sha256":"f0370c1f1c018f8934a083d33962dc0df3f08bb297693d4375d058bfecc22bc7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:41.119280Z","signature_b64":"sjv5oSlLwa4s6IaouIL8ZLFQR0KwvfHU53hfNtZyglnZvcXkb++3Pznmcw8bdI/lzc07Tjz0uQ24/lE2H8YeCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f0370c1f1c018f8934a083d33962dc0df3f08bb297693d4375d058bfecc22bc7","last_reissued_at":"2026-05-17T23:56:41.118688Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:41.118688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00517","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":"2026-05-17T23:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ELfcHkzcBPuk0W6un3XdrXmhysWNL2miZYWQ7Qd0K6tZovdspldGixQjNIKmG0Qfn0b0vRaC88sWLi+l5MLWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:56:55.871378Z"},"content_sha256":"72ec5f39560d7d5db4a65015bfcccda3125bfb39c3012c7b23434e98e4191df9","schema_version":"1.0","event_id":"sha256:72ec5f39560d7d5db4a65015bfcccda3125bfb39c3012c7b23434e98e4191df9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6A3QYHY4AGHYSNFAQPJTSYW4BX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene Multi-Protonation: a Cooperative Mechanism for Proton Permeation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Jos\\'e Campos-Mart{\\i}nez, Marta I. Hern\\'andez, Massimiliano Bartolomei, Ram\\'on Hern\\'andez Lamoneda","submitted_at":"2018-09-03T09:38:56Z","abstract_excerpt":"The interaction between protons and graphene is attracting a large interest due to recent experiments showing that these charged species permeate through the 2D material following a low barrier (~ 0.8 eV) activated process. A possible explanation involves the flipping of a chemisorbed proton (rotation of the C-H$^+$ bond from one to the other side of the carbon layer) and previous studies have found so far that the energy barriers (around 3.5 eV) are too high to explain the experimental findings. Contrarily to the previously adopted model assuming an isolated proton, in this work we consider p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00517","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":"2026-05-17T23:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oIpMrenPsWf4K4710pzbtXMru2OUkFcufezDTae9XgrHOmSGk+XF+VgXQfNiaEWCltz3i4SzWfcvlBCLt6+wCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:56:55.871734Z"},"content_sha256":"ab6c7b8a7d8f09311ba5d4e0f69d0a046f6c56aaf8b90d4a5e98daca455c6cad","schema_version":"1.0","event_id":"sha256:ab6c7b8a7d8f09311ba5d4e0f69d0a046f6c56aaf8b90d4a5e98daca455c6cad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/bundle.json","state_url":"https://pith.science/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/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":"2026-06-11T11:56:55Z","links":{"resolver":"https://pith.science/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX","bundle":"https://pith.science/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/bundle.json","state":"https://pith.science/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6A3QYHY4AGHYSNFAQPJTSYW4BX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6A3QYHY4AGHYSNFAQPJTSYW4BX","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":"de44e94990da6eeee6a6fd1dc7becb5337c35fb9a48f4cbf8b82de2d40c3107c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-03T09:38:56Z","title_canon_sha256":"e5c82c2f58fa955a8e232c5cb3e5d726e7fbfbdaf9e498fb7bb1ddbf84dcc7c0"},"schema_version":"1.0","source":{"id":"1809.00517","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00517","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00517v2","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00517","created_at":"2026-05-17T23:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"6A3QYHY4AGHY","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6A3QYHY4AGHYSNFA","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6A3QYHY4","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:ab6c7b8a7d8f09311ba5d4e0f69d0a046f6c56aaf8b90d4a5e98daca455c6cad","target":"graph","created_at":"2026-05-17T23:56:41Z","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 interaction between protons and graphene is attracting a large interest due to recent experiments showing that these charged species permeate through the 2D material following a low barrier (~ 0.8 eV) activated process. A possible explanation involves the flipping of a chemisorbed proton (rotation of the C-H$^+$ bond from one to the other side of the carbon layer) and previous studies have found so far that the energy barriers (around 3.5 eV) are too high to explain the experimental findings. Contrarily to the previously adopted model assuming an isolated proton, in this work we consider p","authors_text":"Jos\\'e Campos-Mart{\\i}nez, Marta I. Hern\\'andez, Massimiliano Bartolomei, Ram\\'on Hern\\'andez Lamoneda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-03T09:38:56Z","title":"Graphene Multi-Protonation: a Cooperative Mechanism for Proton Permeation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00517","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":"sha256:72ec5f39560d7d5db4a65015bfcccda3125bfb39c3012c7b23434e98e4191df9","target":"record","created_at":"2026-05-17T23:56:41Z","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":"de44e94990da6eeee6a6fd1dc7becb5337c35fb9a48f4cbf8b82de2d40c3107c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-09-03T09:38:56Z","title_canon_sha256":"e5c82c2f58fa955a8e232c5cb3e5d726e7fbfbdaf9e498fb7bb1ddbf84dcc7c0"},"schema_version":"1.0","source":{"id":"1809.00517","kind":"arxiv","version":2}},"canonical_sha256":"f0370c1f1c018f8934a083d33962dc0df3f08bb297693d4375d058bfecc22bc7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0370c1f1c018f8934a083d33962dc0df3f08bb297693d4375d058bfecc22bc7","first_computed_at":"2026-05-17T23:56:41.118688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:41.118688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sjv5oSlLwa4s6IaouIL8ZLFQR0KwvfHU53hfNtZyglnZvcXkb++3Pznmcw8bdI/lzc07Tjz0uQ24/lE2H8YeCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:41.119280Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00517","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72ec5f39560d7d5db4a65015bfcccda3125bfb39c3012c7b23434e98e4191df9","sha256:ab6c7b8a7d8f09311ba5d4e0f69d0a046f6c56aaf8b90d4a5e98daca455c6cad"],"state_sha256":"16bced631eb105cb10b20019bd334fb76d201a5557656c2df7c41fdbe7627ab0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T/gBDXffxHxwDcx0M0A5IMN+Zd3bnMaMkp3xnAs+3O+CfTyiythRwxBv1xwGWFtVHXB/ezmGlY6RBuqtn/RNCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T11:56:55.873689Z","bundle_sha256":"913f9c8c3a2269ae230763d2a93588763be22f87ae2bccc748a9394e975640f9"}}