{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:K6Z65IMIUZDKSAP7P2AAFPH3VI","short_pith_number":"pith:K6Z65IMI","canonical_record":{"source":{"id":"1804.03364","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-10T06:36:16Z","cross_cats_sorted":[],"title_canon_sha256":"7474507fc39ee5d2e89b5e925c4fa1398dd928821e232231d677f6ab9b6d63dc","abstract_canon_sha256":"6d281233235f9089b3c91d566a901779bd2f262a832fc4334d873e528a9db291"},"schema_version":"1.0"},"canonical_sha256":"57b3eea188a646a901ff7e8002bcfbaa38bbbb0a29370b2fa31ec16dec62fc96","source":{"kind":"arxiv","id":"1804.03364","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.03364","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1804.03364v3","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.03364","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"K6Z65IMIUZDK","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K6Z65IMIUZDKSAP7","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K6Z65IMI","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:K6Z65IMIUZDKSAP7P2AAFPH3VI","target":"record","payload":{"canonical_record":{"source":{"id":"1804.03364","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-10T06:36:16Z","cross_cats_sorted":[],"title_canon_sha256":"7474507fc39ee5d2e89b5e925c4fa1398dd928821e232231d677f6ab9b6d63dc","abstract_canon_sha256":"6d281233235f9089b3c91d566a901779bd2f262a832fc4334d873e528a9db291"},"schema_version":"1.0"},"canonical_sha256":"57b3eea188a646a901ff7e8002bcfbaa38bbbb0a29370b2fa31ec16dec62fc96","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:06.628555Z","signature_b64":"Wz7IVBYIY5szZ3oVnLXi2xB/BkvUEsKTMJIUGyzoAjZZa5gIPZ6fcMrsfhSIsGD/x63ME10wIqkny79U0zOVCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57b3eea188a646a901ff7e8002bcfbaa38bbbb0a29370b2fa31ec16dec62fc96","last_reissued_at":"2026-05-17T23:53:06.628060Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:06.628060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.03364","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"akLFYkox86H7mmrsoZ3BxIjRr9qy3eW0o3SoNTjWQf+U6/QdnQjgcLIzSJIB8Bao2XhXsCS62uUNXqTCMvDXAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T10:41:56.107540Z"},"content_sha256":"91ac8fd016c9a4f992b1ff0ca7a3adf43a24dbde59836548f710b66843905c83","schema_version":"1.0","event_id":"sha256:91ac8fd016c9a4f992b1ff0ca7a3adf43a24dbde59836548f710b66843905c83"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:K6Z65IMIUZDKSAP7P2AAFPH3VI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-temperature operation of a silicon qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Keiji Ono, Satoshi Moriyama, Takahiro Mori","submitted_at":"2018-04-10T06:36:16Z","abstract_excerpt":"This study alleviates the low operating temperature constraint of Si qubits. A qubit is a key element for quantum sensors, memories, and computers. Electron spin in Si is a promising qubit, as it allows both long coherence times and potential compatibility with current silicon technology. Si qubits have been implemented using gate-defined quantum dots or shallow impurities. However, operation of Si qubits has been restricted to milli-Kelvin temperatures, thus limiting the application of the quantum technology. In this study, we addressed a single deep impurity, having strong electron confineme"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.03364","kind":"arxiv","version":3},"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":"2026-05-17T23:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YS74kRay1cHnBJSDLG6yJF1DzP4sDww8hF8SRlyLrgv/vLH1JvMgwH3c9ON7q7iKAT7li57O1UEFKBh9l5n3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T10:41:56.108037Z"},"content_sha256":"3c7e2c8642d8bf228db3b9f09d32b855204329f94cf94bd4eb3fdb5207154ccc","schema_version":"1.0","event_id":"sha256:3c7e2c8642d8bf228db3b9f09d32b855204329f94cf94bd4eb3fdb5207154ccc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/bundle.json","state_url":"https://pith.science/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/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":"2026-06-26T10:41:56Z","links":{"resolver":"https://pith.science/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI","bundle":"https://pith.science/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/bundle.json","state":"https://pith.science/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K6Z65IMIUZDKSAP7P2AAFPH3VI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:K6Z65IMIUZDKSAP7P2AAFPH3VI","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":"6d281233235f9089b3c91d566a901779bd2f262a832fc4334d873e528a9db291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-10T06:36:16Z","title_canon_sha256":"7474507fc39ee5d2e89b5e925c4fa1398dd928821e232231d677f6ab9b6d63dc"},"schema_version":"1.0","source":{"id":"1804.03364","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.03364","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1804.03364v3","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.03364","created_at":"2026-05-17T23:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"K6Z65IMIUZDK","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K6Z65IMIUZDKSAP7","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K6Z65IMI","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:3c7e2c8642d8bf228db3b9f09d32b855204329f94cf94bd4eb3fdb5207154ccc","target":"graph","created_at":"2026-05-17T23:53:06Z","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":"This study alleviates the low operating temperature constraint of Si qubits. A qubit is a key element for quantum sensors, memories, and computers. Electron spin in Si is a promising qubit, as it allows both long coherence times and potential compatibility with current silicon technology. Si qubits have been implemented using gate-defined quantum dots or shallow impurities. However, operation of Si qubits has been restricted to milli-Kelvin temperatures, thus limiting the application of the quantum technology. In this study, we addressed a single deep impurity, having strong electron confineme","authors_text":"Keiji Ono, Satoshi Moriyama, Takahiro Mori","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-10T06:36:16Z","title":"High-temperature operation of a silicon qubit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.03364","kind":"arxiv","version":3},"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":"sha256:91ac8fd016c9a4f992b1ff0ca7a3adf43a24dbde59836548f710b66843905c83","target":"record","created_at":"2026-05-17T23:53:06Z","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":"6d281233235f9089b3c91d566a901779bd2f262a832fc4334d873e528a9db291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-10T06:36:16Z","title_canon_sha256":"7474507fc39ee5d2e89b5e925c4fa1398dd928821e232231d677f6ab9b6d63dc"},"schema_version":"1.0","source":{"id":"1804.03364","kind":"arxiv","version":3}},"canonical_sha256":"57b3eea188a646a901ff7e8002bcfbaa38bbbb0a29370b2fa31ec16dec62fc96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57b3eea188a646a901ff7e8002bcfbaa38bbbb0a29370b2fa31ec16dec62fc96","first_computed_at":"2026-05-17T23:53:06.628060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:06.628060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wz7IVBYIY5szZ3oVnLXi2xB/BkvUEsKTMJIUGyzoAjZZa5gIPZ6fcMrsfhSIsGD/x63ME10wIqkny79U0zOVCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:06.628555Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.03364","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91ac8fd016c9a4f992b1ff0ca7a3adf43a24dbde59836548f710b66843905c83","sha256:3c7e2c8642d8bf228db3b9f09d32b855204329f94cf94bd4eb3fdb5207154ccc"],"state_sha256":"f043e7e039871b3f8636c103121a913a798ff3c670280e337cc170acfd7d8916"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QcL/dktrBdv0U3U6KrjZ8v8HOrJT8g7BmfgkDAekoM35IGmK4nSAnyjIgE/iCcCPZZKyFN5JvnK/8siruQoUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T10:41:56.110358Z","bundle_sha256":"f9e58568cfe598ecb2ae1f0ab8c1347161a46be2479f1925bda9458a0b6f3fc7"}}