{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:GDHBSCV6JNGX2KJAU7HFPM3BWS","short_pith_number":"pith:GDHBSCV6","canonical_record":{"source":{"id":"1308.5078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-23T09:30:30Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"ed6fbe9dd5402457c0f4768b9cf13391fc6be3421e9098e03ccc4ca9446a8e55","abstract_canon_sha256":"76289a20460272db6da9608106a11c272a84721bf24c680ae69cc23b1526289a"},"schema_version":"1.0"},"canonical_sha256":"30ce190abe4b4d7d2920a7ce57b361b492b9de9b700748009ddbf5735688c20c","source":{"kind":"arxiv","id":"1308.5078","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5078","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5078v1","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5078","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"GDHBSCV6JNGX","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GDHBSCV6JNGX2KJA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GDHBSCV6","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:GDHBSCV6JNGX2KJAU7HFPM3BWS","target":"record","payload":{"canonical_record":{"source":{"id":"1308.5078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-23T09:30:30Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"ed6fbe9dd5402457c0f4768b9cf13391fc6be3421e9098e03ccc4ca9446a8e55","abstract_canon_sha256":"76289a20460272db6da9608106a11c272a84721bf24c680ae69cc23b1526289a"},"schema_version":"1.0"},"canonical_sha256":"30ce190abe4b4d7d2920a7ce57b361b492b9de9b700748009ddbf5735688c20c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:57:08.704282Z","signature_b64":"lIbbHCrINIEAN5NRUTff44kyKxjT0z4ezzFGaQ+fqbfNSv6QNANPDVS3BAwgk9BkB9K/OMhYUtK1yIMgODt5Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30ce190abe4b4d7d2920a7ce57b361b492b9de9b700748009ddbf5735688c20c","last_reissued_at":"2026-05-18T02:57:08.703764Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:57:08.703764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.5078","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":"2026-05-18T02:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aZNJNXH9maK48hpum+IyCU1kra0r1ixCV8PVVk+Ydn6FuDCM2ZG6z2gfjebvNKtgPowZGPLcJvG/1tIJ03spDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:29:14.615684Z"},"content_sha256":"9e13428622a2e808c0347686fa25790538f8180f1ad39ac90a34a386ae75062c","schema_version":"1.0","event_id":"sha256:9e13428622a2e808c0347686fa25790538f8180f1ad39ac90a34a386ae75062c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:GDHBSCV6JNGX2KJAU7HFPM3BWS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Negative-U Centers as a Basis of Topological Edge Channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"Andrey Kudryavtsev, Anna Malyarenko, Eduard Danilovskii, Leonid Klyachkin, Nikolay Bagraev, Vladimir Mashkov, Wolfgang Gehlhoff","submitted_at":"2013-08-23T09:30:30Z","abstract_excerpt":"We present the findings of the studies of the silicon sandwich nanostructure that represents the high mobility ultra - narrow silicon quantum well of the p - type (Si - QW), 2 nm, confined by the delta - barriers, 3 nm, heavily doped with boron on the n - type Si (100) surface. The ESR studies show that nanostructured delta - barriers confining the Si - QW consist predominantly of the dipole negative - U centers of boron, which are caused by the reconstruction of the shallow boron acceptors along the <111> crystallographic axis, 2B(0) = B(+) + B(-). The electrically ordered chains of dipole ne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5078","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":"2026-05-18T02:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sFd5fS8FBdu4KB3ieQTbsmLd3mq8q7aWK5snZ6ZdhImUGMVYtnQMCXjQQdEgdr+uacD0696FZxIfhuxV2odJBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:29:14.616058Z"},"content_sha256":"1100ebc1f6eea3e84de7e216c7d144609ce2d62aabf94fe16aa99c7241d36c92","schema_version":"1.0","event_id":"sha256:1100ebc1f6eea3e84de7e216c7d144609ce2d62aabf94fe16aa99c7241d36c92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/bundle.json","state_url":"https://pith.science/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/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":"2026-06-22T09:29:14Z","links":{"resolver":"https://pith.science/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS","bundle":"https://pith.science/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/bundle.json","state":"https://pith.science/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GDHBSCV6JNGX2KJAU7HFPM3BWS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GDHBSCV6JNGX2KJAU7HFPM3BWS","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":"76289a20460272db6da9608106a11c272a84721bf24c680ae69cc23b1526289a","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-23T09:30:30Z","title_canon_sha256":"ed6fbe9dd5402457c0f4768b9cf13391fc6be3421e9098e03ccc4ca9446a8e55"},"schema_version":"1.0","source":{"id":"1308.5078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5078","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5078v1","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5078","created_at":"2026-05-18T02:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"GDHBSCV6JNGX","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GDHBSCV6JNGX2KJA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GDHBSCV6","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:1100ebc1f6eea3e84de7e216c7d144609ce2d62aabf94fe16aa99c7241d36c92","target":"graph","created_at":"2026-05-18T02:57:08Z","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 present the findings of the studies of the silicon sandwich nanostructure that represents the high mobility ultra - narrow silicon quantum well of the p - type (Si - QW), 2 nm, confined by the delta - barriers, 3 nm, heavily doped with boron on the n - type Si (100) surface. The ESR studies show that nanostructured delta - barriers confining the Si - QW consist predominantly of the dipole negative - U centers of boron, which are caused by the reconstruction of the shallow boron acceptors along the <111> crystallographic axis, 2B(0) = B(+) + B(-). The electrically ordered chains of dipole ne","authors_text":"Andrey Kudryavtsev, Anna Malyarenko, Eduard Danilovskii, Leonid Klyachkin, Nikolay Bagraev, Vladimir Mashkov, Wolfgang Gehlhoff","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-23T09:30:30Z","title":"Negative-U Centers as a Basis of Topological Edge Channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5078","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":"sha256:9e13428622a2e808c0347686fa25790538f8180f1ad39ac90a34a386ae75062c","target":"record","created_at":"2026-05-18T02:57:08Z","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":"76289a20460272db6da9608106a11c272a84721bf24c680ae69cc23b1526289a","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-08-23T09:30:30Z","title_canon_sha256":"ed6fbe9dd5402457c0f4768b9cf13391fc6be3421e9098e03ccc4ca9446a8e55"},"schema_version":"1.0","source":{"id":"1308.5078","kind":"arxiv","version":1}},"canonical_sha256":"30ce190abe4b4d7d2920a7ce57b361b492b9de9b700748009ddbf5735688c20c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30ce190abe4b4d7d2920a7ce57b361b492b9de9b700748009ddbf5735688c20c","first_computed_at":"2026-05-18T02:57:08.703764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:57:08.703764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lIbbHCrINIEAN5NRUTff44kyKxjT0z4ezzFGaQ+fqbfNSv6QNANPDVS3BAwgk9BkB9K/OMhYUtK1yIMgODt5Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:57:08.704282Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.5078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e13428622a2e808c0347686fa25790538f8180f1ad39ac90a34a386ae75062c","sha256:1100ebc1f6eea3e84de7e216c7d144609ce2d62aabf94fe16aa99c7241d36c92"],"state_sha256":"99a3ac96a3c391738049b3be8182f0d37fbadf4d8286faf2c0d20a9d1e783c3a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pqLmCtcHNmxUOLqOTKX36ylRf+tA6faSj/kHCUcwEkXG6VWFhqqLiKB+QjLHq17IVuPZVQWVxgdKFfNTmHc9Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T09:29:14.618137Z","bundle_sha256":"7058367efaa96614789189d2208e8bb496d21c9b64583d2edddc6aba4f76177b"}}