{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:M2SIERZRTAMORUJOZDFAGARCTD","short_pith_number":"pith:M2SIERZR","canonical_record":{"source":{"id":"1005.2711","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-15T22:39:24Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"bccc4c512a6479c17ec0dbb4e9f4f291a24dc5f12b47420c6a9b73218a5f0301","abstract_canon_sha256":"3ea7c1bd6cf8884c01ca897b05719eb863d7efddb01014468fb3cd69990cfa6a"},"schema_version":"1.0"},"canonical_sha256":"66a48247319818e8d12ec8ca03022298ce5a35037a157573babc872bab0fe1b8","source":{"kind":"arxiv","id":"1005.2711","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.2711","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1005.2711v2","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.2711","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"M2SIERZRTAMO","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"M2SIERZRTAMORUJO","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"M2SIERZR","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:M2SIERZRTAMORUJOZDFAGARCTD","target":"record","payload":{"canonical_record":{"source":{"id":"1005.2711","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-15T22:39:24Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"bccc4c512a6479c17ec0dbb4e9f4f291a24dc5f12b47420c6a9b73218a5f0301","abstract_canon_sha256":"3ea7c1bd6cf8884c01ca897b05719eb863d7efddb01014468fb3cd69990cfa6a"},"schema_version":"1.0"},"canonical_sha256":"66a48247319818e8d12ec8ca03022298ce5a35037a157573babc872bab0fe1b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:36.609515Z","signature_b64":"hdjK0EqrPum9d6dRGObSUeB7Zh2wWSE0g3amI+pew+oAmWn8ZOlvp/Txv4wfRFOTCimhq73Mgh0zozv1feI+Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66a48247319818e8d12ec8ca03022298ce5a35037a157573babc872bab0fe1b8","last_reissued_at":"2026-05-18T04:41:36.609003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:36.609003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.2711","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":"2026-05-18T04:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4sQHVk1L/9um+6i6ntYx+wkOhIA4aluMAiDlyNEvNPl9mb5RS3nKYu9gdht8CqVmYMqglaVC0RdxIh985fzMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:36:24.603058Z"},"content_sha256":"8588cf01c439ffd2e10b18a9d3475ca69df87fc42779736d87f1449e267046ad","schema_version":"1.0","event_id":"sha256:8588cf01c439ffd2e10b18a9d3475ca69df87fc42779736d87f1449e267046ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:M2SIERZRTAMORUJOZDFAGARCTD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mobility and Saturation Velocity in Graphene on SiO2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Eric Pop, Myung-Ho Bae, Vincent E. Dorgan","submitted_at":"2010-05-15T22:39:24Z","abstract_excerpt":"We examine mobility and saturation velocity in graphene on SiO2 above room temperature (300-500 K) and at high fields (~1 V/um). Data are analyzed with practical models including gated carriers, thermal generation, \"puddle\" charge, and Joule heating. Both mobility and saturation velocity decrease with rising temperature above 300 K, and with rising carrier density above 2x10^12 cm^-2. Saturation velocity is >3x10^7 cm/s at low carrier density, and remains greater than in Si up to 1.2x10^13 cm^-2. Transport appears primarily limited by the SiO2 substrate, but results suggest intrinsic graphene "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.2711","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":"2026-05-18T04:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OF2xNMLF0hdlK0A/slR6a0BK1fkIJsWWATjMh8bgB35BfoBhijFWtxMkjffrFmAG+rGnyjhb5EZBdN+/Ci7DBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:36:24.603420Z"},"content_sha256":"1c49649390611e35b6506a98ac6b0a6728a988b3a193e330e6032071d53b7795","schema_version":"1.0","event_id":"sha256:1c49649390611e35b6506a98ac6b0a6728a988b3a193e330e6032071d53b7795"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M2SIERZRTAMORUJOZDFAGARCTD/bundle.json","state_url":"https://pith.science/pith/M2SIERZRTAMORUJOZDFAGARCTD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M2SIERZRTAMORUJOZDFAGARCTD/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":"2026-05-30T02:36:24Z","links":{"resolver":"https://pith.science/pith/M2SIERZRTAMORUJOZDFAGARCTD","bundle":"https://pith.science/pith/M2SIERZRTAMORUJOZDFAGARCTD/bundle.json","state":"https://pith.science/pith/M2SIERZRTAMORUJOZDFAGARCTD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M2SIERZRTAMORUJOZDFAGARCTD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:M2SIERZRTAMORUJOZDFAGARCTD","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":"3ea7c1bd6cf8884c01ca897b05719eb863d7efddb01014468fb3cd69990cfa6a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-15T22:39:24Z","title_canon_sha256":"bccc4c512a6479c17ec0dbb4e9f4f291a24dc5f12b47420c6a9b73218a5f0301"},"schema_version":"1.0","source":{"id":"1005.2711","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.2711","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1005.2711v2","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.2711","created_at":"2026-05-18T04:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"M2SIERZRTAMO","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"M2SIERZRTAMORUJO","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"M2SIERZR","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:1c49649390611e35b6506a98ac6b0a6728a988b3a193e330e6032071d53b7795","target":"graph","created_at":"2026-05-18T04:41:36Z","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":"We examine mobility and saturation velocity in graphene on SiO2 above room temperature (300-500 K) and at high fields (~1 V/um). Data are analyzed with practical models including gated carriers, thermal generation, \"puddle\" charge, and Joule heating. Both mobility and saturation velocity decrease with rising temperature above 300 K, and with rising carrier density above 2x10^12 cm^-2. Saturation velocity is >3x10^7 cm/s at low carrier density, and remains greater than in Si up to 1.2x10^13 cm^-2. Transport appears primarily limited by the SiO2 substrate, but results suggest intrinsic graphene ","authors_text":"Eric Pop, Myung-Ho Bae, Vincent E. Dorgan","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-15T22:39:24Z","title":"Mobility and Saturation Velocity in Graphene on SiO2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.2711","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":"sha256:8588cf01c439ffd2e10b18a9d3475ca69df87fc42779736d87f1449e267046ad","target":"record","created_at":"2026-05-18T04:41:36Z","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":"3ea7c1bd6cf8884c01ca897b05719eb863d7efddb01014468fb3cd69990cfa6a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-15T22:39:24Z","title_canon_sha256":"bccc4c512a6479c17ec0dbb4e9f4f291a24dc5f12b47420c6a9b73218a5f0301"},"schema_version":"1.0","source":{"id":"1005.2711","kind":"arxiv","version":2}},"canonical_sha256":"66a48247319818e8d12ec8ca03022298ce5a35037a157573babc872bab0fe1b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66a48247319818e8d12ec8ca03022298ce5a35037a157573babc872bab0fe1b8","first_computed_at":"2026-05-18T04:41:36.609003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:36.609003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hdjK0EqrPum9d6dRGObSUeB7Zh2wWSE0g3amI+pew+oAmWn8ZOlvp/Txv4wfRFOTCimhq73Mgh0zozv1feI+Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:36.609515Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.2711","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8588cf01c439ffd2e10b18a9d3475ca69df87fc42779736d87f1449e267046ad","sha256:1c49649390611e35b6506a98ac6b0a6728a988b3a193e330e6032071d53b7795"],"state_sha256":"95ad42e73e366860fe8fdcef80c77aae9c79e2027d63fa17cea7f90d42967758"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FchnIKcEoE25VI5SCp1DyTgxvc/UATV2rL1WMRQsYuy2IQk9bStWPrc+1yIeOzIeiNHMhXo4cfWrL5JCVcJECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:36:24.605550Z","bundle_sha256":"fe8afce0e2c7b8b8ce25eee53e649bc853007343f934804ec85c6aafd307e477"}}