{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:XSL2OODWHRA3X4PBBCIEERBUIM","short_pith_number":"pith:XSL2OODW","canonical_record":{"source":{"id":"1202.0615","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-03T06:56:56Z","cross_cats_sorted":[],"title_canon_sha256":"eea38da289baa7c2008a524f9fff174d6faaa186a343f853db6a6b76108024c7","abstract_canon_sha256":"01e165680bbc803f199b71c759ef1f37d833420eac0d16e7c05306339a0fa2db"},"schema_version":"1.0"},"canonical_sha256":"bc97a738763c41bbf1e10890424434432f1e910aeb776d993156b5b04a9371b4","source":{"kind":"arxiv","id":"1202.0615","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0615","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0615v1","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0615","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"XSL2OODWHRA3","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XSL2OODWHRA3X4PB","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XSL2OODW","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:XSL2OODWHRA3X4PBBCIEERBUIM","target":"record","payload":{"canonical_record":{"source":{"id":"1202.0615","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-03T06:56:56Z","cross_cats_sorted":[],"title_canon_sha256":"eea38da289baa7c2008a524f9fff174d6faaa186a343f853db6a6b76108024c7","abstract_canon_sha256":"01e165680bbc803f199b71c759ef1f37d833420eac0d16e7c05306339a0fa2db"},"schema_version":"1.0"},"canonical_sha256":"bc97a738763c41bbf1e10890424434432f1e910aeb776d993156b5b04a9371b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:08.414115Z","signature_b64":"HCIgx9S7v5zGnljfimAwDyG7StC6vxnOBUFkhowqi7OCxeWPFbiT9CMVylQhCQwELQXwqWGEY0FL7Tci4T6EAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc97a738763c41bbf1e10890424434432f1e910aeb776d993156b5b04a9371b4","last_reissued_at":"2026-05-18T04:03:08.413159Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:08.413159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.0615","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":"2026-05-18T04:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZXxSdB/AQ9lEkx2TnaLdC9vK1jtbM1dTLrsJtB6sRmhU5fORvHJ2eC292Hh5M8jwI7AEE/nARrHvIO/HsW7+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:08:06.870004Z"},"content_sha256":"d61fe4690288dfd0d5f740caceb96f9fc3b17e9f966b3d6f50de8c85319f0928","schema_version":"1.0","event_id":"sha256:d61fe4690288dfd0d5f740caceb96f9fc3b17e9f966b3d6f50de8c85319f0928"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:XSL2OODWHRA3X4PBBCIEERBUIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electrical transport across metal/two-dimensional carbon junctions: Edge versus side contacts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Aihua Zhang, Baoxi Xu, Chun Zhang, Jiayi Wang, Miao Zhou, Yanjing Yang, Yihong Wu, Ying Wang, Younan Hua","submitted_at":"2012-02-03T06:56:56Z","abstract_excerpt":"Metal/two-dimensional carbon junctions are characterized by using a nanoprobe in an ultrahigh vacuum environment. Significant differences were found in bias voltage (V) dependence of differential conductance (dI/dV) between edge- and side-contact; the former exhibits a clear linear relationship (i.e., dI/dV \\propto V), whereas the latter is characterized by a nonlinear dependence, dI/dV \\propto V3/2. Theoretical calculations confirm the experimental results, which are due to the robust two-dimensional nature of the carbon materials under study. Our work demonstrates the importance of contact g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0615","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":"2026-05-18T04:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nhMvnvhH9V8xgnkID64nj5pJit7mfhXXdFqCCqLzbMOsWkgB5GvjbazZSRaUJcQjBzVsPOdXcdxcUfDbh51GCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T00:08:06.870371Z"},"content_sha256":"a795a5136d890a174518384245dd4c07253421094fdd0d8210f54e02f740e1a5","schema_version":"1.0","event_id":"sha256:a795a5136d890a174518384245dd4c07253421094fdd0d8210f54e02f740e1a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XSL2OODWHRA3X4PBBCIEERBUIM/bundle.json","state_url":"https://pith.science/pith/XSL2OODWHRA3X4PBBCIEERBUIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XSL2OODWHRA3X4PBBCIEERBUIM/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":"2026-05-31T00:08:06Z","links":{"resolver":"https://pith.science/pith/XSL2OODWHRA3X4PBBCIEERBUIM","bundle":"https://pith.science/pith/XSL2OODWHRA3X4PBBCIEERBUIM/bundle.json","state":"https://pith.science/pith/XSL2OODWHRA3X4PBBCIEERBUIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XSL2OODWHRA3X4PBBCIEERBUIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XSL2OODWHRA3X4PBBCIEERBUIM","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":"01e165680bbc803f199b71c759ef1f37d833420eac0d16e7c05306339a0fa2db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-03T06:56:56Z","title_canon_sha256":"eea38da289baa7c2008a524f9fff174d6faaa186a343f853db6a6b76108024c7"},"schema_version":"1.0","source":{"id":"1202.0615","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0615","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0615v1","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0615","created_at":"2026-05-18T04:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"XSL2OODWHRA3","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XSL2OODWHRA3X4PB","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XSL2OODW","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:a795a5136d890a174518384245dd4c07253421094fdd0d8210f54e02f740e1a5","target":"graph","created_at":"2026-05-18T04:03:08Z","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":"Metal/two-dimensional carbon junctions are characterized by using a nanoprobe in an ultrahigh vacuum environment. Significant differences were found in bias voltage (V) dependence of differential conductance (dI/dV) between edge- and side-contact; the former exhibits a clear linear relationship (i.e., dI/dV \\propto V), whereas the latter is characterized by a nonlinear dependence, dI/dV \\propto V3/2. Theoretical calculations confirm the experimental results, which are due to the robust two-dimensional nature of the carbon materials under study. Our work demonstrates the importance of contact g","authors_text":"Aihua Zhang, Baoxi Xu, Chun Zhang, Jiayi Wang, Miao Zhou, Yanjing Yang, Yihong Wu, Ying Wang, Younan Hua","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-03T06:56:56Z","title":"Electrical transport across metal/two-dimensional carbon junctions: Edge versus side contacts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0615","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:d61fe4690288dfd0d5f740caceb96f9fc3b17e9f966b3d6f50de8c85319f0928","target":"record","created_at":"2026-05-18T04:03:08Z","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":"01e165680bbc803f199b71c759ef1f37d833420eac0d16e7c05306339a0fa2db","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-03T06:56:56Z","title_canon_sha256":"eea38da289baa7c2008a524f9fff174d6faaa186a343f853db6a6b76108024c7"},"schema_version":"1.0","source":{"id":"1202.0615","kind":"arxiv","version":1}},"canonical_sha256":"bc97a738763c41bbf1e10890424434432f1e910aeb776d993156b5b04a9371b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc97a738763c41bbf1e10890424434432f1e910aeb776d993156b5b04a9371b4","first_computed_at":"2026-05-18T04:03:08.413159Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:08.413159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HCIgx9S7v5zGnljfimAwDyG7StC6vxnOBUFkhowqi7OCxeWPFbiT9CMVylQhCQwELQXwqWGEY0FL7Tci4T6EAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:08.414115Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.0615","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d61fe4690288dfd0d5f740caceb96f9fc3b17e9f966b3d6f50de8c85319f0928","sha256:a795a5136d890a174518384245dd4c07253421094fdd0d8210f54e02f740e1a5"],"state_sha256":"98b697ab611d39fad1f5ae7a7e4b4c28406e06b0e1cd76c3d3e20a8271a9be3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lE4e3fRnoDT3U8/BBXevK3tkcqhN87uZkasYeG7ktkkExCI71En8pg/kiBltwnd1YQuTqjrnlSIo59SxUf+bDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T00:08:06.872910Z","bundle_sha256":"c840ee1f0aaff689a13922167fe3e1fc84088719eec709c4b4b7af8e1af060da"}}