{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:XIN4WA5OIFLWQIEPZ5DWSVYWIF","short_pith_number":"pith:XIN4WA5O","canonical_record":{"source":{"id":"1606.00292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-01T14:00:48Z","cross_cats_sorted":[],"title_canon_sha256":"a7a9f17aecb8a6fb72a367cb496ce861ff23d3bc46c04eff58dbd8bb9e63a9fa","abstract_canon_sha256":"f9bdd3845242ff0a1c97e76888c1e37521c2b89df278aa6c4dc0ae1643e3497f"},"schema_version":"1.0"},"canonical_sha256":"ba1bcb03ae415768208fcf476957164156173aa2f53062cc95dcf9db835aa317","source":{"kind":"arxiv","id":"1606.00292","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.00292","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"arxiv_version","alias_value":"1606.00292v1","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.00292","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"pith_short_12","alias_value":"XIN4WA5OIFLW","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XIN4WA5OIFLWQIEP","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XIN4WA5O","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:XIN4WA5OIFLWQIEPZ5DWSVYWIF","target":"record","payload":{"canonical_record":{"source":{"id":"1606.00292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-01T14:00:48Z","cross_cats_sorted":[],"title_canon_sha256":"a7a9f17aecb8a6fb72a367cb496ce861ff23d3bc46c04eff58dbd8bb9e63a9fa","abstract_canon_sha256":"f9bdd3845242ff0a1c97e76888c1e37521c2b89df278aa6c4dc0ae1643e3497f"},"schema_version":"1.0"},"canonical_sha256":"ba1bcb03ae415768208fcf476957164156173aa2f53062cc95dcf9db835aa317","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:29.347075Z","signature_b64":"gXwYQveJYunLD2OnThzHlQ8ParUd0cfud6/AMK0ioooK8plLB4j3F3JtHI95cds6fVB5AL+of3rxqcqCBjDUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba1bcb03ae415768208fcf476957164156173aa2f53062cc95dcf9db835aa317","last_reissued_at":"2026-05-18T01:10:29.346606Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:29.346606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.00292","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":"2026-05-18T01:10:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Egk+25Mb0ppcO9klX1FT2JgZ+/7CxQ3mVgGWz+R6heUKYARgij1DmqlpALSGTGo6z8G1ZGLUxNqearuy/fsODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:45:35.354357Z"},"content_sha256":"118ca1ad078365f4bd4ac448d3861bf5fbaf431eeab7bab61a38222a9ae76825","schema_version":"1.0","event_id":"sha256:118ca1ad078365f4bd4ac448d3861bf5fbaf431eeab7bab61a38222a9ae76825"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:XIN4WA5OIFLWQIEPZ5DWSVYWIF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanosecond-timescale spin transfer using individual electrons in a quadruple-quantum-dot device","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"C. Reichl, L.M.K. Vandersypen, N. Jovanovic, T.A. Baart, W. Wegscheider","submitted_at":"2016-06-01T14:00:48Z","abstract_excerpt":"The ability to coherently transport electron-spin states between different sites of gate-defined semiconductor quantum dots is an essential ingredient for a quantum-dot-based quantum computer. Previous shuttles using electrostatic gating were too slow to move an electron within the spin dephasing time across an array. Here we report a nanosecond-timescale spin transfer of individual electrons across a quadruple-quantum-dot device. Utilizing enhanced relaxation rates at a so-called `hot spot', we can upper bound the shuttle time to at most 150 ns. While actual shuttle times are likely shorter, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.00292","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":"2026-05-18T01:10:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mY3szon3kB2K0x2WxJ8Box9GJyjl5HGiakGjykqAaNqGLDHa3lwKBrKnQekIMNsAQXIYQY0nzlQMQ4uiooPQCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T07:45:35.354712Z"},"content_sha256":"0ee6881cef4b5d57be91812fc3a81134114ebc8f5d8c8ffa3d13ddf28caf7d92","schema_version":"1.0","event_id":"sha256:0ee6881cef4b5d57be91812fc3a81134114ebc8f5d8c8ffa3d13ddf28caf7d92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/bundle.json","state_url":"https://pith.science/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/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":"2026-06-03T07:45:35Z","links":{"resolver":"https://pith.science/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF","bundle":"https://pith.science/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/bundle.json","state":"https://pith.science/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XIN4WA5OIFLWQIEPZ5DWSVYWIF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XIN4WA5OIFLWQIEPZ5DWSVYWIF","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":"f9bdd3845242ff0a1c97e76888c1e37521c2b89df278aa6c4dc0ae1643e3497f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-01T14:00:48Z","title_canon_sha256":"a7a9f17aecb8a6fb72a367cb496ce861ff23d3bc46c04eff58dbd8bb9e63a9fa"},"schema_version":"1.0","source":{"id":"1606.00292","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.00292","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"arxiv_version","alias_value":"1606.00292v1","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.00292","created_at":"2026-05-18T01:10:29Z"},{"alias_kind":"pith_short_12","alias_value":"XIN4WA5OIFLW","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XIN4WA5OIFLWQIEP","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XIN4WA5O","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:0ee6881cef4b5d57be91812fc3a81134114ebc8f5d8c8ffa3d13ddf28caf7d92","target":"graph","created_at":"2026-05-18T01:10:29Z","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":"The ability to coherently transport electron-spin states between different sites of gate-defined semiconductor quantum dots is an essential ingredient for a quantum-dot-based quantum computer. Previous shuttles using electrostatic gating were too slow to move an electron within the spin dephasing time across an array. Here we report a nanosecond-timescale spin transfer of individual electrons across a quadruple-quantum-dot device. Utilizing enhanced relaxation rates at a so-called `hot spot', we can upper bound the shuttle time to at most 150 ns. While actual shuttle times are likely shorter, ","authors_text":"C. Reichl, L.M.K. Vandersypen, N. Jovanovic, T.A. Baart, W. Wegscheider","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-01T14:00:48Z","title":"Nanosecond-timescale spin transfer using individual electrons in a quadruple-quantum-dot device"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.00292","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":"sha256:118ca1ad078365f4bd4ac448d3861bf5fbaf431eeab7bab61a38222a9ae76825","target":"record","created_at":"2026-05-18T01:10:29Z","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":"f9bdd3845242ff0a1c97e76888c1e37521c2b89df278aa6c4dc0ae1643e3497f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-06-01T14:00:48Z","title_canon_sha256":"a7a9f17aecb8a6fb72a367cb496ce861ff23d3bc46c04eff58dbd8bb9e63a9fa"},"schema_version":"1.0","source":{"id":"1606.00292","kind":"arxiv","version":1}},"canonical_sha256":"ba1bcb03ae415768208fcf476957164156173aa2f53062cc95dcf9db835aa317","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba1bcb03ae415768208fcf476957164156173aa2f53062cc95dcf9db835aa317","first_computed_at":"2026-05-18T01:10:29.346606Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:29.346606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gXwYQveJYunLD2OnThzHlQ8ParUd0cfud6/AMK0ioooK8plLB4j3F3JtHI95cds6fVB5AL+of3rxqcqCBjDUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:29.347075Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.00292","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:118ca1ad078365f4bd4ac448d3861bf5fbaf431eeab7bab61a38222a9ae76825","sha256:0ee6881cef4b5d57be91812fc3a81134114ebc8f5d8c8ffa3d13ddf28caf7d92"],"state_sha256":"888850a06bb42a51533bcbf101d5ca8cf71497c08a41514687e6d3b222a3bd6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ja9fPMBo1zWiGU9gmB8J3oKmoFramC7pa7Af+2IKHBcxMcEmnrO+hYOj4hpzAkwajyHLMxdqO5gAF7/vuZr6BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T07:45:35.356681Z","bundle_sha256":"ea17956b8f0c3e595318eac8606652e796b782245bf8c674b6463096e52919f8"}}