{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UOEUVEOVPHEWCAE7Q6C7V2CHCO","short_pith_number":"pith:UOEUVEOV","canonical_record":{"source":{"id":"1511.08939","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-11-28T22:16:22Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"554c3c1f08c9c0a6913067e1a1ec855fa015a4113002119b57c46873612c8cc3","abstract_canon_sha256":"439675bd231178a5489cd0433cb3cd38db7d720826253ac326ca77bb1169064b"},"schema_version":"1.0"},"canonical_sha256":"a3894a91d579c961009f8785fae847139093ed02e0598dc67e5866fa2e97d4b2","source":{"kind":"arxiv","id":"1511.08939","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.08939","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"1511.08939v1","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.08939","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"UOEUVEOVPHEW","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UOEUVEOVPHEWCAE7","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UOEUVEOV","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UOEUVEOVPHEWCAE7Q6C7V2CHCO","target":"record","payload":{"canonical_record":{"source":{"id":"1511.08939","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-11-28T22:16:22Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"554c3c1f08c9c0a6913067e1a1ec855fa015a4113002119b57c46873612c8cc3","abstract_canon_sha256":"439675bd231178a5489cd0433cb3cd38db7d720826253ac326ca77bb1169064b"},"schema_version":"1.0"},"canonical_sha256":"a3894a91d579c961009f8785fae847139093ed02e0598dc67e5866fa2e97d4b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:46.054684Z","signature_b64":"cWpfn0Z7OlRprN7NX2sDfj8oOkMPULTgIu6ZfHCPK2+AEnp7ueihVK+Z4CjQ9wIY7xGeQwNC2TG1gTyCm91eAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3894a91d579c961009f8785fae847139093ed02e0598dc67e5866fa2e97d4b2","last_reissued_at":"2026-05-18T01:25:46.054084Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:46.054084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.08939","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":"2026-05-18T01:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TcntgVzetngwd0CGJVJ9dsS1+guB8/dVDhO/x5YYGWmq7aGizvprx+2Rhtpwxvd14TDlwGfwQ24URzpoAoVABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:10:35.261355Z"},"content_sha256":"29d1b4fe242f0165b020918080f5ed624df50205c7f955fc7bc36ed2c7a9c47a","schema_version":"1.0","event_id":"sha256:29d1b4fe242f0165b020918080f5ed624df50205c7f955fc7bc36ed2c7a9c47a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UOEUVEOVPHEWCAE7Q6C7V2CHCO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Record Surface State Mobility and Quantum Hall Effect in Topological Insulator Thin Films via Interface Engineering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Daniel Dessau, Jisoo Moon, Jixia Dai, Justin Waugh, Liang Wu, Maryam Salehi, Matthew Brahlek, Myung-Geun Han, Nikesh Koirala, N. Peter Armitage, Seongshik Oh, Thomas Nummy, Weida Wu, Yimei Zhu","submitted_at":"2015-11-28T22:16:22Z","abstract_excerpt":"Material defects remain as the main bottleneck to the progress of topological insulators (TIs). In particular, efforts to achieve thin TI samples with dominant surface transport have always led to increased defects and degraded mobilities, thus making it difficult to probe the quantum regime of the topological surface states. Here, by utilizing a novel buffer layer scheme composed of an In2Se3/(Bi0.5In0.5)2Se3 heterostructure, we introduce a quantum generation of Bi2Se3 films with an order of magnitude enhanced mobilities than before. This scheme has led to the first observation of the quantum"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.08939","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":"2026-05-18T01:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OtRcdU14RrN6XcDGjEW0+onpAmgC5tc2i+ORBX83FLFEWsvNsnSomENn0E9A+WzgHlf2VMfpt5qtl652HzPbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:10:35.261721Z"},"content_sha256":"730481e35ff9fd44b2281072fc155e0cc8b4615a2595990ab6e18318ce7bd02f","schema_version":"1.0","event_id":"sha256:730481e35ff9fd44b2281072fc155e0cc8b4615a2595990ab6e18318ce7bd02f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/bundle.json","state_url":"https://pith.science/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/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":"2026-05-30T18:10:35Z","links":{"resolver":"https://pith.science/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO","bundle":"https://pith.science/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/bundle.json","state":"https://pith.science/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UOEUVEOVPHEWCAE7Q6C7V2CHCO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UOEUVEOVPHEWCAE7Q6C7V2CHCO","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":"439675bd231178a5489cd0433cb3cd38db7d720826253ac326ca77bb1169064b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-11-28T22:16:22Z","title_canon_sha256":"554c3c1f08c9c0a6913067e1a1ec855fa015a4113002119b57c46873612c8cc3"},"schema_version":"1.0","source":{"id":"1511.08939","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.08939","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"1511.08939v1","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.08939","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"UOEUVEOVPHEW","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UOEUVEOVPHEWCAE7","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UOEUVEOV","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:730481e35ff9fd44b2281072fc155e0cc8b4615a2595990ab6e18318ce7bd02f","target":"graph","created_at":"2026-05-18T01:25:46Z","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":"Material defects remain as the main bottleneck to the progress of topological insulators (TIs). In particular, efforts to achieve thin TI samples with dominant surface transport have always led to increased defects and degraded mobilities, thus making it difficult to probe the quantum regime of the topological surface states. Here, by utilizing a novel buffer layer scheme composed of an In2Se3/(Bi0.5In0.5)2Se3 heterostructure, we introduce a quantum generation of Bi2Se3 films with an order of magnitude enhanced mobilities than before. This scheme has led to the first observation of the quantum","authors_text":"Daniel Dessau, Jisoo Moon, Jixia Dai, Justin Waugh, Liang Wu, Maryam Salehi, Matthew Brahlek, Myung-Geun Han, Nikesh Koirala, N. Peter Armitage, Seongshik Oh, Thomas Nummy, Weida Wu, Yimei Zhu","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-11-28T22:16:22Z","title":"Record Surface State Mobility and Quantum Hall Effect in Topological Insulator Thin Films via Interface Engineering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.08939","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":"sha256:29d1b4fe242f0165b020918080f5ed624df50205c7f955fc7bc36ed2c7a9c47a","target":"record","created_at":"2026-05-18T01:25:46Z","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":"439675bd231178a5489cd0433cb3cd38db7d720826253ac326ca77bb1169064b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-11-28T22:16:22Z","title_canon_sha256":"554c3c1f08c9c0a6913067e1a1ec855fa015a4113002119b57c46873612c8cc3"},"schema_version":"1.0","source":{"id":"1511.08939","kind":"arxiv","version":1}},"canonical_sha256":"a3894a91d579c961009f8785fae847139093ed02e0598dc67e5866fa2e97d4b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3894a91d579c961009f8785fae847139093ed02e0598dc67e5866fa2e97d4b2","first_computed_at":"2026-05-18T01:25:46.054084Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:46.054084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cWpfn0Z7OlRprN7NX2sDfj8oOkMPULTgIu6ZfHCPK2+AEnp7ueihVK+Z4CjQ9wIY7xGeQwNC2TG1gTyCm91eAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:46.054684Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.08939","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29d1b4fe242f0165b020918080f5ed624df50205c7f955fc7bc36ed2c7a9c47a","sha256:730481e35ff9fd44b2281072fc155e0cc8b4615a2595990ab6e18318ce7bd02f"],"state_sha256":"83612e7a8ad84a9eccb54a085a4949f1d6b831aa63179cb31ea5fccae22ab5ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aPPiJ6erk+ojmFLda+9DX+RmZfBECoatGhcBDa+Bvs4O1X8PX3f7rSYWuHdPhe9D+mRAU5IpwRadv+C/LbkCAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:10:35.264005Z","bundle_sha256":"f9e6f81444b3151c9af68daa863ea10b796f7f096e8811c4a8f5d6e6da25901f"}}