{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:66TXVSVSFCNM6MGYVQZLATP3RE","short_pith_number":"pith:66TXVSVS","canonical_record":{"source":{"id":"1304.4668","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-17T02:09:39Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"59a46b42a1216c5508e3e2fe977e8fa23694c1f25c3d6086ddc25722a93c0e61","abstract_canon_sha256":"52710fd65a2876ab2344a487cb097a205964ff1f0f9dfb5aaec60df6f7cd6a63"},"schema_version":"1.0"},"canonical_sha256":"f7a77acab2289acf30d8ac32b04dfb89085fea3e3a41abe9bc4ccacf8dbfa426","source":{"kind":"arxiv","id":"1304.4668","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4668","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4668v1","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4668","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"pith_short_12","alias_value":"66TXVSVSFCNM","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"66TXVSVSFCNM6MGY","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"66TXVSVS","created_at":"2026-05-18T12:27:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:66TXVSVSFCNM6MGYVQZLATP3RE","target":"record","payload":{"canonical_record":{"source":{"id":"1304.4668","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-17T02:09:39Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"59a46b42a1216c5508e3e2fe977e8fa23694c1f25c3d6086ddc25722a93c0e61","abstract_canon_sha256":"52710fd65a2876ab2344a487cb097a205964ff1f0f9dfb5aaec60df6f7cd6a63"},"schema_version":"1.0"},"canonical_sha256":"f7a77acab2289acf30d8ac32b04dfb89085fea3e3a41abe9bc4ccacf8dbfa426","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:14.374155Z","signature_b64":"cyRUWoRHpL+LGLvsHUrNvbfQMdyXaiaggruDCW70KfJZZ0tCkc02ffiJemIduRMABxKl804r3mnihy7e1N6QCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7a77acab2289acf30d8ac32b04dfb89085fea3e3a41abe9bc4ccacf8dbfa426","last_reissued_at":"2026-05-18T03:17:14.373266Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:14.373266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.4668","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":"2026-05-18T03:17:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SObOqXoWVaEVh/zzeRdwJL4ZvQl5Ig0ouUrzFxM4Bw8fE5jSOVmuufIGApEBlcS9/60KO8C/qWp9HeKNd947CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:08:38.351135Z"},"content_sha256":"bdaafb3f3bc2fed5f4d994cbf856dbe6a33f00880b875178a4daf497ae639a9f","schema_version":"1.0","event_id":"sha256:bdaafb3f3bc2fed5f4d994cbf856dbe6a33f00880b875178a4daf497ae639a9f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:66TXVSVSFCNM6MGYVQZLATP3RE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Universal density scaling of disorder-limited low-temperature conductivity in high-mobility two-dimensional systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"E. H. Hwang, S. Das Sarma","submitted_at":"2013-04-17T02:09:39Z","abstract_excerpt":"We theoretically consider the carrier density dependence of low-temperature electrical conductivity in high-quality and low-disorder two-dimensional (2D) `metallic' electronic systems such as 2D GaAs electron or hole quantum wells or gated graphene. Taking into account resistive scattering by Coulomb disorder arising from quenched random charged impurities in the environment, we show that the 2D conductivity \\sigma(n) varies as \\sigma ~ n^{\\beta(n)} as a function of the 2D carrier density n where the exponent \\beta(n) is a smooth, but non-monotonic, function of density with possible nontrivial"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4668","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":"2026-05-18T03:17:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fJR/e4+ZCckY6/UDi7Fxr9aE/nWQASqGcoFOW+6LODfBPfcRMlWEYfiMjN6mwlxttb5hBpveaUviBruokmUxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:08:38.351743Z"},"content_sha256":"0afb415ad1129a93140e089fa857ece2f152db5b979987ea7cf08835c449bc96","schema_version":"1.0","event_id":"sha256:0afb415ad1129a93140e089fa857ece2f152db5b979987ea7cf08835c449bc96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66TXVSVSFCNM6MGYVQZLATP3RE/bundle.json","state_url":"https://pith.science/pith/66TXVSVSFCNM6MGYVQZLATP3RE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66TXVSVSFCNM6MGYVQZLATP3RE/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":"2026-05-26T05:08:38Z","links":{"resolver":"https://pith.science/pith/66TXVSVSFCNM6MGYVQZLATP3RE","bundle":"https://pith.science/pith/66TXVSVSFCNM6MGYVQZLATP3RE/bundle.json","state":"https://pith.science/pith/66TXVSVSFCNM6MGYVQZLATP3RE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66TXVSVSFCNM6MGYVQZLATP3RE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:66TXVSVSFCNM6MGYVQZLATP3RE","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":"52710fd65a2876ab2344a487cb097a205964ff1f0f9dfb5aaec60df6f7cd6a63","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-17T02:09:39Z","title_canon_sha256":"59a46b42a1216c5508e3e2fe977e8fa23694c1f25c3d6086ddc25722a93c0e61"},"schema_version":"1.0","source":{"id":"1304.4668","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4668","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4668v1","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4668","created_at":"2026-05-18T03:17:14Z"},{"alias_kind":"pith_short_12","alias_value":"66TXVSVSFCNM","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"66TXVSVSFCNM6MGY","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"66TXVSVS","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:0afb415ad1129a93140e089fa857ece2f152db5b979987ea7cf08835c449bc96","target":"graph","created_at":"2026-05-18T03:17:14Z","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 theoretically consider the carrier density dependence of low-temperature electrical conductivity in high-quality and low-disorder two-dimensional (2D) `metallic' electronic systems such as 2D GaAs electron or hole quantum wells or gated graphene. Taking into account resistive scattering by Coulomb disorder arising from quenched random charged impurities in the environment, we show that the 2D conductivity \\sigma(n) varies as \\sigma ~ n^{\\beta(n)} as a function of the 2D carrier density n where the exponent \\beta(n) is a smooth, but non-monotonic, function of density with possible nontrivial","authors_text":"E. H. Hwang, S. Das Sarma","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-17T02:09:39Z","title":"Universal density scaling of disorder-limited low-temperature conductivity in high-mobility two-dimensional systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4668","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:bdaafb3f3bc2fed5f4d994cbf856dbe6a33f00880b875178a4daf497ae639a9f","target":"record","created_at":"2026-05-18T03:17:14Z","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":"52710fd65a2876ab2344a487cb097a205964ff1f0f9dfb5aaec60df6f7cd6a63","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-17T02:09:39Z","title_canon_sha256":"59a46b42a1216c5508e3e2fe977e8fa23694c1f25c3d6086ddc25722a93c0e61"},"schema_version":"1.0","source":{"id":"1304.4668","kind":"arxiv","version":1}},"canonical_sha256":"f7a77acab2289acf30d8ac32b04dfb89085fea3e3a41abe9bc4ccacf8dbfa426","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7a77acab2289acf30d8ac32b04dfb89085fea3e3a41abe9bc4ccacf8dbfa426","first_computed_at":"2026-05-18T03:17:14.373266Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:14.373266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cyRUWoRHpL+LGLvsHUrNvbfQMdyXaiaggruDCW70KfJZZ0tCkc02ffiJemIduRMABxKl804r3mnihy7e1N6QCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:14.374155Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.4668","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdaafb3f3bc2fed5f4d994cbf856dbe6a33f00880b875178a4daf497ae639a9f","sha256:0afb415ad1129a93140e089fa857ece2f152db5b979987ea7cf08835c449bc96"],"state_sha256":"3f10ebf8567748bc2ee01dbbabb4197eab0777f05449f1fceeeb1ec2d2939a8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"14p9z3rw0FNYSBbdCvXRUYnb2Tr5/SXt0XFRHyvDEObBTIEMnxi8yFsofSA1DzFL80rOhbhm1ETMp1CMJqSzAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:08:38.354827Z","bundle_sha256":"db490cc11d0c2b2f258c034186abc0a4508e380f14c6013c6d00791f4a243167"}}