{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:UG6SJXZUYV3X5GUIYYWLBYTO2U","short_pith_number":"pith:UG6SJXZU","canonical_record":{"source":{"id":"cond-mat/0004312","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-04-18T15:46:16Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"600542a598f5face0d9b00542eea9261f1caea87ea0466ba5c89a61bc82f35f8","abstract_canon_sha256":"5e4828aed7301c10fe9fc2a497cb05886fe5a75e3c943106404f209eca1ff31a"},"schema_version":"1.0"},"canonical_sha256":"a1bd24df34c5777e9a88c62cb0e26ed51e17daf3646aaef0338f142f778151f1","source":{"kind":"arxiv","id":"cond-mat/0004312","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0004312","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0004312v2","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0004312","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_12","alias_value":"UG6SJXZUYV3X","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_16","alias_value":"UG6SJXZUYV3X5GUI","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_8","alias_value":"UG6SJXZU","created_at":"2026-07-04T16:18:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:UG6SJXZUYV3X5GUIYYWLBYTO2U","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0004312","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-04-18T15:46:16Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"600542a598f5face0d9b00542eea9261f1caea87ea0466ba5c89a61bc82f35f8","abstract_canon_sha256":"5e4828aed7301c10fe9fc2a497cb05886fe5a75e3c943106404f209eca1ff31a"},"schema_version":"1.0"},"canonical_sha256":"a1bd24df34c5777e9a88c62cb0e26ed51e17daf3646aaef0338f142f778151f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:18:22.186746Z","signature_b64":"wpvAVrIOsQ/oAmW4Qy8TiEY3cYLwrSOCf2lQb4AShZY5VFzXvTUlUu6iLNTsgwUWdDrO6mSu9mPtSRJyYZnDDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a1bd24df34c5777e9a88c62cb0e26ed51e17daf3646aaef0338f142f778151f1","last_reissued_at":"2026-07-04T16:18:22.186265Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:18:22.186265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0004312","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":"2026-07-04T16:18:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AsteHvYb1MP6+LEOnbiKg/bHxNjqvE35zqmplL5tTEqUz2WBUhyPQt+TyzcKRvnMJz4QrRscslQdTljQAInbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:16:15.600978Z"},"content_sha256":"57ccf881481e3af1d6b53fcab2d58042739bc91cc1b6f79caf8c65257379eb7f","schema_version":"1.0","event_id":"sha256:57ccf881481e3af1d6b53fcab2d58042739bc91cc1b6f79caf8c65257379eb7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:UG6SJXZUYV3X5GUIYYWLBYTO2U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analysis of the Metallic Phase of Two-Dimensional Holes in SiGe in Terms of Temperature Dependent Screening","license":"","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"D. Grutzmacher (2), ETH Zurich, G. Dehlinger (2), K. Ensslin (1), Switzerland), Switzerland. (2) Paul Scherrer Institut, T. Heinzel (1), T. Ihn (1), U. Gennser (2) ((1) Laboratory of Solid State Physics, V. Senz (1)","submitted_at":"2000-04-18T15:46:16Z","abstract_excerpt":"We find that temperature dependent screening can quantitatively explain the metallic behaviour of the resistivity on the metallic side of the so-called metal-insulator transition in p-SiGe. Interference and interaction effects exhibit the usual insulating behaviour which is expected to overpower the metallic background at sufficiently low temperatures. We find empirically that the concept of a Fermi-liquid describes our data in spite of the large r_s = 8."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0004312","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0004312/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:18:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oeJDUKILjXLy4Nj8CUzTcaBIdMTQVBEcFQ8OOEqCKJW2f2xJtgvPHCchjQM5a3BBi9PHn4CyohC/6tLwC7iqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:16:15.601465Z"},"content_sha256":"c1e6e0b6823183b434ec6f5d5ee9370e02c9a3d58dfdec37855e77e4ea8628f5","schema_version":"1.0","event_id":"sha256:c1e6e0b6823183b434ec6f5d5ee9370e02c9a3d58dfdec37855e77e4ea8628f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/bundle.json","state_url":"https://pith.science/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/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":"2026-08-04T20:16:15Z","links":{"resolver":"https://pith.science/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U","bundle":"https://pith.science/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/bundle.json","state":"https://pith.science/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UG6SJXZUYV3X5GUIYYWLBYTO2U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:UG6SJXZUYV3X5GUIYYWLBYTO2U","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":"5e4828aed7301c10fe9fc2a497cb05886fe5a75e3c943106404f209eca1ff31a","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-04-18T15:46:16Z","title_canon_sha256":"600542a598f5face0d9b00542eea9261f1caea87ea0466ba5c89a61bc82f35f8"},"schema_version":"1.0","source":{"id":"cond-mat/0004312","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0004312","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0004312v2","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0004312","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_12","alias_value":"UG6SJXZUYV3X","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_16","alias_value":"UG6SJXZUYV3X5GUI","created_at":"2026-07-04T16:18:22Z"},{"alias_kind":"pith_short_8","alias_value":"UG6SJXZU","created_at":"2026-07-04T16:18:22Z"}],"graph_snapshots":[{"event_id":"sha256:c1e6e0b6823183b434ec6f5d5ee9370e02c9a3d58dfdec37855e77e4ea8628f5","target":"graph","created_at":"2026-07-04T16:18:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0004312/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We find that temperature dependent screening can quantitatively explain the metallic behaviour of the resistivity on the metallic side of the so-called metal-insulator transition in p-SiGe. Interference and interaction effects exhibit the usual insulating behaviour which is expected to overpower the metallic background at sufficiently low temperatures. We find empirically that the concept of a Fermi-liquid describes our data in spite of the large r_s = 8.","authors_text":"D. Grutzmacher (2), ETH Zurich, G. Dehlinger (2), K. Ensslin (1), Switzerland), Switzerland. (2) Paul Scherrer Institut, T. Heinzel (1), T. Ihn (1), U. Gennser (2) ((1) Laboratory of Solid State Physics, V. Senz (1)","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-04-18T15:46:16Z","title":"Analysis of the Metallic Phase of Two-Dimensional Holes in SiGe in Terms of Temperature Dependent Screening"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0004312","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":"sha256:57ccf881481e3af1d6b53fcab2d58042739bc91cc1b6f79caf8c65257379eb7f","target":"record","created_at":"2026-07-04T16:18:22Z","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":"5e4828aed7301c10fe9fc2a497cb05886fe5a75e3c943106404f209eca1ff31a","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-04-18T15:46:16Z","title_canon_sha256":"600542a598f5face0d9b00542eea9261f1caea87ea0466ba5c89a61bc82f35f8"},"schema_version":"1.0","source":{"id":"cond-mat/0004312","kind":"arxiv","version":2}},"canonical_sha256":"a1bd24df34c5777e9a88c62cb0e26ed51e17daf3646aaef0338f142f778151f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1bd24df34c5777e9a88c62cb0e26ed51e17daf3646aaef0338f142f778151f1","first_computed_at":"2026-07-04T16:18:22.186265Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:18:22.186265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wpvAVrIOsQ/oAmW4Qy8TiEY3cYLwrSOCf2lQb4AShZY5VFzXvTUlUu6iLNTsgwUWdDrO6mSu9mPtSRJyYZnDDg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:18:22.186746Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0004312","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57ccf881481e3af1d6b53fcab2d58042739bc91cc1b6f79caf8c65257379eb7f","sha256:c1e6e0b6823183b434ec6f5d5ee9370e02c9a3d58dfdec37855e77e4ea8628f5"],"state_sha256":"a6133e10a442c82028f91ed9c8bafa944ae49ee46ea0e05a6de3bb253b8c2e78"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l5egb08t7RnyTTepi1XxCnmz0dlZM0OCfkWVO3fYbMTq1UNEKrDWNzkR4FH+WAn6eVPRWqW9KtaP5KMs3hSdCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:16:15.605791Z","bundle_sha256":"6f4287b4667018552957de1678a6d7b258a84a477f088555b053fbad68fc37ce"}}