{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:AB3S3JXMNPWCXFCIYOXL35APUA","short_pith_number":"pith:AB3S3JXM","canonical_record":{"source":{"id":"1203.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-03-07T19:25:18Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"4c4baca0403a9312f8ddb0994f5401f218bbf9d7a94741cf650b1e7807b969bb","abstract_canon_sha256":"f9edff2ba91f6302158ef1a921a0a38b9cdadb42cdb51003b87b52076fc6fb7a"},"schema_version":"1.0"},"canonical_sha256":"00772da6ec6bec2b9448c3aebdf40fa03abb8a441ed2c7d6cc51dce8043589dd","source":{"kind":"arxiv","id":"1203.1574","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1574","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1574v1","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1574","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"pith_short_12","alias_value":"AB3S3JXMNPWC","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AB3S3JXMNPWCXFCI","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AB3S3JXM","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:AB3S3JXMNPWCXFCIYOXL35APUA","target":"record","payload":{"canonical_record":{"source":{"id":"1203.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-03-07T19:25:18Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"4c4baca0403a9312f8ddb0994f5401f218bbf9d7a94741cf650b1e7807b969bb","abstract_canon_sha256":"f9edff2ba91f6302158ef1a921a0a38b9cdadb42cdb51003b87b52076fc6fb7a"},"schema_version":"1.0"},"canonical_sha256":"00772da6ec6bec2b9448c3aebdf40fa03abb8a441ed2c7d6cc51dce8043589dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:00:38.435346Z","signature_b64":"8kJC5wpGZCNwVU8SVmzbysswifGplFQmSFsGHNvbkcwX7qJbWT2RiCzxlbTVeu8fOz3yBdZStg2wFkx8dgEsBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00772da6ec6bec2b9448c3aebdf40fa03abb8a441ed2c7d6cc51dce8043589dd","last_reissued_at":"2026-05-18T04:00:38.434589Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:00:38.434589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.1574","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":"2026-05-18T04:00:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K2vxJsALl2++WaMEk531q3+F/hnHzE7DGv4gCZUSdmmO4x22ibtDsHpXvDm9BLj8NMxqNF5SlXBt1QZD232kDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:24:52.027157Z"},"content_sha256":"c58c8cd9eb012a8f749e4afa0f2ee1d24fc0ee33a5913fe2374865affa6178b7","schema_version":"1.0","event_id":"sha256:c58c8cd9eb012a8f749e4afa0f2ee1d24fc0ee33a5913fe2374865affa6178b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:AB3S3JXMNPWCXFCIYOXL35APUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing charge scattering mechanisms in suspended graphene by varying its dielectric environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. K. M. Newaz, Bin Wang, Kirill I. Bolotin, Sokrates T. Pantelides, Yevgeniy S. Puzyrev","submitted_at":"2012-03-07T19:25:18Z","abstract_excerpt":"Graphene with high carrier mobility \\mu\\ is required both for graphene-based electronic devices and for the investigation of the fundamental properties of graphene's Dirac fermions. It is largely accepted that the mobility-limiting factor in graphene is the Coulomb scattering off of charged impurities that reside either on graphene or in the underlying substrate. This is true both for traditional graphene devices on SiO2 substrates and possibly for the recently reported high-mobility suspended and supported devices. An attractive approach to reduce such scattering is to place graphene in an en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1574","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":"2026-05-18T04:00:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ghNRREiuCm9Lg7HZidkpV6zIZBCE7LtEzgbuIv/GYBQs4xujOnHxYQ0fko/2vxPQvPOpV9lQdJ+k0Yk3Lsp9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:24:52.027534Z"},"content_sha256":"5214f87eb517431073fd1c80c7854155b2c5611148255816870fb61b2552ec3c","schema_version":"1.0","event_id":"sha256:5214f87eb517431073fd1c80c7854155b2c5611148255816870fb61b2552ec3c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AB3S3JXMNPWCXFCIYOXL35APUA/bundle.json","state_url":"https://pith.science/pith/AB3S3JXMNPWCXFCIYOXL35APUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AB3S3JXMNPWCXFCIYOXL35APUA/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":"2026-05-26T23:24:52Z","links":{"resolver":"https://pith.science/pith/AB3S3JXMNPWCXFCIYOXL35APUA","bundle":"https://pith.science/pith/AB3S3JXMNPWCXFCIYOXL35APUA/bundle.json","state":"https://pith.science/pith/AB3S3JXMNPWCXFCIYOXL35APUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AB3S3JXMNPWCXFCIYOXL35APUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:AB3S3JXMNPWCXFCIYOXL35APUA","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":"f9edff2ba91f6302158ef1a921a0a38b9cdadb42cdb51003b87b52076fc6fb7a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-03-07T19:25:18Z","title_canon_sha256":"4c4baca0403a9312f8ddb0994f5401f218bbf9d7a94741cf650b1e7807b969bb"},"schema_version":"1.0","source":{"id":"1203.1574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1574","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1574v1","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1574","created_at":"2026-05-18T04:00:38Z"},{"alias_kind":"pith_short_12","alias_value":"AB3S3JXMNPWC","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AB3S3JXMNPWCXFCI","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AB3S3JXM","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:5214f87eb517431073fd1c80c7854155b2c5611148255816870fb61b2552ec3c","target":"graph","created_at":"2026-05-18T04:00:38Z","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":"Graphene with high carrier mobility \\mu\\ is required both for graphene-based electronic devices and for the investigation of the fundamental properties of graphene's Dirac fermions. It is largely accepted that the mobility-limiting factor in graphene is the Coulomb scattering off of charged impurities that reside either on graphene or in the underlying substrate. This is true both for traditional graphene devices on SiO2 substrates and possibly for the recently reported high-mobility suspended and supported devices. An attractive approach to reduce such scattering is to place graphene in an en","authors_text":"A. K. M. Newaz, Bin Wang, Kirill I. Bolotin, Sokrates T. Pantelides, Yevgeniy S. Puzyrev","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-03-07T19:25:18Z","title":"Probing charge scattering mechanisms in suspended graphene by varying its dielectric environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1574","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:c58c8cd9eb012a8f749e4afa0f2ee1d24fc0ee33a5913fe2374865affa6178b7","target":"record","created_at":"2026-05-18T04:00:38Z","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":"f9edff2ba91f6302158ef1a921a0a38b9cdadb42cdb51003b87b52076fc6fb7a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-03-07T19:25:18Z","title_canon_sha256":"4c4baca0403a9312f8ddb0994f5401f218bbf9d7a94741cf650b1e7807b969bb"},"schema_version":"1.0","source":{"id":"1203.1574","kind":"arxiv","version":1}},"canonical_sha256":"00772da6ec6bec2b9448c3aebdf40fa03abb8a441ed2c7d6cc51dce8043589dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00772da6ec6bec2b9448c3aebdf40fa03abb8a441ed2c7d6cc51dce8043589dd","first_computed_at":"2026-05-18T04:00:38.434589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:38.434589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8kJC5wpGZCNwVU8SVmzbysswifGplFQmSFsGHNvbkcwX7qJbWT2RiCzxlbTVeu8fOz3yBdZStg2wFkx8dgEsBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:38.435346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c58c8cd9eb012a8f749e4afa0f2ee1d24fc0ee33a5913fe2374865affa6178b7","sha256:5214f87eb517431073fd1c80c7854155b2c5611148255816870fb61b2552ec3c"],"state_sha256":"c2a36adc5f9f5181429269bbcc91e6c3b93eb6fd0d393bcaf36de966374200dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T3deExPBkuNJxZBp6eyTrsMoJdZ9HelSeXDIlPPdTAuefH+83S3WJNMpjsDMWFBrac0gT5CfZsuVfQHb8HdBCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:24:52.030182Z","bundle_sha256":"361e7e509b3cd2b64b5861f9ec014bf0414444b0ac4a34494618185afbcb027c"}}