{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:NON3EXY6OLQ6QPE7IYE6RAAQ5E","short_pith_number":"pith:NON3EXY6","canonical_record":{"source":{"id":"1211.5104","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-11-21T18:02:42Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"1a9b0c70bc8a75109f6654e06d5611dc53a1765e88e59f8b1e4e7f1a45cdd0e9","abstract_canon_sha256":"6f8ec20150293499e94e50db63a8891df2773124c064dbd3b766bf02582d3d03"},"schema_version":"1.0"},"canonical_sha256":"6b9bb25f1e72e1e83c9f4609e88010e90044652987c9af3d3560dd6403d1dfd4","source":{"kind":"arxiv","id":"1211.5104","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.5104","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"arxiv_version","alias_value":"1211.5104v4","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.5104","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"pith_short_12","alias_value":"NON3EXY6OLQ6","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NON3EXY6OLQ6QPE7","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NON3EXY6","created_at":"2026-05-18T12:27:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:NON3EXY6OLQ6QPE7IYE6RAAQ5E","target":"record","payload":{"canonical_record":{"source":{"id":"1211.5104","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-11-21T18:02:42Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"1a9b0c70bc8a75109f6654e06d5611dc53a1765e88e59f8b1e4e7f1a45cdd0e9","abstract_canon_sha256":"6f8ec20150293499e94e50db63a8891df2773124c064dbd3b766bf02582d3d03"},"schema_version":"1.0"},"canonical_sha256":"6b9bb25f1e72e1e83c9f4609e88010e90044652987c9af3d3560dd6403d1dfd4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:05:54.929825Z","signature_b64":"YokxzYaclJlYbKF1Jq5CzqJUhW5stV4COSwF3Zaqf7M2aRKjgVwsL1EChYVXlEiHASBi2bpsE76Df5D8nZHACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b9bb25f1e72e1e83c9f4609e88010e90044652987c9af3d3560dd6403d1dfd4","last_reissued_at":"2026-05-18T03:05:54.929254Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:05:54.929254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.5104","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:05:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m4VRxxKvypmRShtiqy+xqzpS2If7YV5r1+IxhpjzIJCXChtV4UxmhHboT8gm2BzAQDq4Vk4mikixroeACfgICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:34:17.176014Z"},"content_sha256":"5053d7cf77cbfecfcedc8d01e27538e95b6a851449e2d3a3b10127d87bbe1710","schema_version":"1.0","event_id":"sha256:5053d7cf77cbfecfcedc8d01e27538e95b6a851449e2d3a3b10127d87bbe1710"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:NON3EXY6OLQ6QPE7IYE6RAAQ5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-temperature surface conduction in the Kondo insulator SmB$_6$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Cagliyan Kurdak, Dae-Jeong Kim, J. W. Allen, Kai Sun, Steven Wolgast, Zachary Fisk","submitted_at":"2012-11-21T18:02:42Z","abstract_excerpt":"We study the transport properties of the Kondo insulator SmB$_6$ with a specialized configuration designed to distinguish bulk-dominated conduction from surface-dominated conduction. We find that as the material is cooled below 4 K, it exhibits a crossover from bulk to surface conduction with a fully insulating bulk. We take the robustness and magnitude of the surface conductivity, as is manifest in the literature of SmB$_6$, to be strong evidence for the topological insulator metallic surface states recently predicted for this material."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.5104","kind":"arxiv","version":4},"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":"2026-05-18T03:05:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Swr4nQThV0cuNtoRw7mlFvSmZDPtAsaFfblj0XtpK0Z9u0BKNMlkimRuB/q+XoM4JbcR4HQVVz2haTk8u8DFCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:34:17.176411Z"},"content_sha256":"b9a1cbb166768ee37ecbff8434d9bca40603f4604c74d1486d15ca04d1e1e8af","schema_version":"1.0","event_id":"sha256:b9a1cbb166768ee37ecbff8434d9bca40603f4604c74d1486d15ca04d1e1e8af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/bundle.json","state_url":"https://pith.science/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/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":"2026-06-11T22:34:17Z","links":{"resolver":"https://pith.science/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E","bundle":"https://pith.science/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/bundle.json","state":"https://pith.science/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NON3EXY6OLQ6QPE7IYE6RAAQ5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NON3EXY6OLQ6QPE7IYE6RAAQ5E","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":"6f8ec20150293499e94e50db63a8891df2773124c064dbd3b766bf02582d3d03","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-11-21T18:02:42Z","title_canon_sha256":"1a9b0c70bc8a75109f6654e06d5611dc53a1765e88e59f8b1e4e7f1a45cdd0e9"},"schema_version":"1.0","source":{"id":"1211.5104","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.5104","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"arxiv_version","alias_value":"1211.5104v4","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.5104","created_at":"2026-05-18T03:05:54Z"},{"alias_kind":"pith_short_12","alias_value":"NON3EXY6OLQ6","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NON3EXY6OLQ6QPE7","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NON3EXY6","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:b9a1cbb166768ee37ecbff8434d9bca40603f4604c74d1486d15ca04d1e1e8af","target":"graph","created_at":"2026-05-18T03:05:54Z","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 study the transport properties of the Kondo insulator SmB$_6$ with a specialized configuration designed to distinguish bulk-dominated conduction from surface-dominated conduction. We find that as the material is cooled below 4 K, it exhibits a crossover from bulk to surface conduction with a fully insulating bulk. We take the robustness and magnitude of the surface conductivity, as is manifest in the literature of SmB$_6$, to be strong evidence for the topological insulator metallic surface states recently predicted for this material.","authors_text":"Cagliyan Kurdak, Dae-Jeong Kim, J. W. Allen, Kai Sun, Steven Wolgast, Zachary Fisk","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-11-21T18:02:42Z","title":"Low-temperature surface conduction in the Kondo insulator SmB$_6$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.5104","kind":"arxiv","version":4},"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":"sha256:5053d7cf77cbfecfcedc8d01e27538e95b6a851449e2d3a3b10127d87bbe1710","target":"record","created_at":"2026-05-18T03:05:54Z","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":"6f8ec20150293499e94e50db63a8891df2773124c064dbd3b766bf02582d3d03","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-11-21T18:02:42Z","title_canon_sha256":"1a9b0c70bc8a75109f6654e06d5611dc53a1765e88e59f8b1e4e7f1a45cdd0e9"},"schema_version":"1.0","source":{"id":"1211.5104","kind":"arxiv","version":4}},"canonical_sha256":"6b9bb25f1e72e1e83c9f4609e88010e90044652987c9af3d3560dd6403d1dfd4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b9bb25f1e72e1e83c9f4609e88010e90044652987c9af3d3560dd6403d1dfd4","first_computed_at":"2026-05-18T03:05:54.929254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:54.929254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YokxzYaclJlYbKF1Jq5CzqJUhW5stV4COSwF3Zaqf7M2aRKjgVwsL1EChYVXlEiHASBi2bpsE76Df5D8nZHACA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:54.929825Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.5104","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5053d7cf77cbfecfcedc8d01e27538e95b6a851449e2d3a3b10127d87bbe1710","sha256:b9a1cbb166768ee37ecbff8434d9bca40603f4604c74d1486d15ca04d1e1e8af"],"state_sha256":"3c3a1f2302afc3d30c9a79c311f7c278ece9579ffc90e773b578cfe52615bc51"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"14gQm/VsI3MJ43yykyWoruzE+mN5veMiEF1gDNpedoXwuCxaqhwZhNXQmMAkJgzFQGQEA+9pABhbgADwz/HIBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T22:34:17.179001Z","bundle_sha256":"9e85da6d5b243f373405b982748896070308f966445855d6fc6cafe640e3b1f2"}}