{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BBQUQYONHTXNTZKR6AMIK2JRRZ","short_pith_number":"pith:BBQUQYON","canonical_record":{"source":{"id":"1802.01327","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-05T10:13:51Z","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"title_canon_sha256":"ab4872c761a92fd33d14cc4767ddb7d4188764108ba96af0b547c6c39fa26b1c","abstract_canon_sha256":"c365d4d25d7621bb9eba2bc118afed1041efe4d5d8dbe9a60d4e3635f7c6d4b7"},"schema_version":"1.0"},"canonical_sha256":"08614861cd3ceed9e551f0188569318e4cbf9e82bf8405f1b4cb2593e8ebdb3b","source":{"kind":"arxiv","id":"1802.01327","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01327","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01327v1","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01327","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"BBQUQYONHTXN","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"BBQUQYONHTXNTZKR","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"BBQUQYON","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BBQUQYONHTXNTZKR6AMIK2JRRZ","target":"record","payload":{"canonical_record":{"source":{"id":"1802.01327","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-05T10:13:51Z","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"title_canon_sha256":"ab4872c761a92fd33d14cc4767ddb7d4188764108ba96af0b547c6c39fa26b1c","abstract_canon_sha256":"c365d4d25d7621bb9eba2bc118afed1041efe4d5d8dbe9a60d4e3635f7c6d4b7"},"schema_version":"1.0"},"canonical_sha256":"08614861cd3ceed9e551f0188569318e4cbf9e82bf8405f1b4cb2593e8ebdb3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:02.877310Z","signature_b64":"k8syMAGQFBrPtly3lYA+5wd93dFqMRpc7FcXEJYMOW/5dYNByrd+eh0wGOSAhr5PTBZQrzII2zd8XwyLBwP+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08614861cd3ceed9e551f0188569318e4cbf9e82bf8405f1b4cb2593e8ebdb3b","last_reissued_at":"2026-05-17T23:53:02.876654Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:02.876654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.01327","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":"2026-05-17T23:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DRrADfCL1ycw99/VIDs7uSDuZFL8uaC2YL5ZYWTudg7hI6/d5tY+cvu9fFRmYVYFZe4+SpIY4SFvaXIXybeEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:46:04.900247Z"},"content_sha256":"a14833acf065ee7722ea3a707921f4d6dc11813076bd913f4576f5afaa06879f","schema_version":"1.0","event_id":"sha256:a14833acf065ee7722ea3a707921f4d6dc11813076bd913f4576f5afaa06879f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BBQUQYONHTXNTZKR6AMIK2JRRZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Voltage-Controlled Superconducting Quantum Bus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Kringh{\\o}j, C. M. Marcus, F. Kuemmeth, J. Nyg\\r{a}rd, K. D. Petersson, L. Casparis, N. J. Pearson, P. Krogstrup, T. W. Larsen","submitted_at":"2018-02-05T10:13:51Z","abstract_excerpt":"We demonstrate the ability of an epitaxial semiconductor-superconductor nanowire to serve as a field-effect switch to tune a superconducting cavity. Two superconducting gatemon qubits are coupled to the cavity, which acts as a quantum bus. Using a gate voltage to control the superconducting switch yields up to a factor of 8 change in qubit-qubit coupling between the on and off states without detrimental effect on qubit coherence. High-bandwidth operation of the coupling switch on nanosecond timescales degrades qubit coherence."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01327","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":"2026-05-17T23:53:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+4ITgTXKtQ7yezALTjrT7eiHL2qqBLWD6YsmjhyKJZ5jxL3wh3u/IUA4dVXbSP6FZTWzIwH/XtPMQ9kaQ6VDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:46:04.900598Z"},"content_sha256":"387882ba65e710101337d8fbcd782ccb95aef97af4d4d6ae553a840d4370b616","schema_version":"1.0","event_id":"sha256:387882ba65e710101337d8fbcd782ccb95aef97af4d4d6ae553a840d4370b616"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/bundle.json","state_url":"https://pith.science/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/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":"2026-06-04T17:46:04Z","links":{"resolver":"https://pith.science/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ","bundle":"https://pith.science/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/bundle.json","state":"https://pith.science/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BBQUQYONHTXNTZKR6AMIK2JRRZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BBQUQYONHTXNTZKR6AMIK2JRRZ","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":"c365d4d25d7621bb9eba2bc118afed1041efe4d5d8dbe9a60d4e3635f7c6d4b7","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-05T10:13:51Z","title_canon_sha256":"ab4872c761a92fd33d14cc4767ddb7d4188764108ba96af0b547c6c39fa26b1c"},"schema_version":"1.0","source":{"id":"1802.01327","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01327","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01327v1","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01327","created_at":"2026-05-17T23:53:02Z"},{"alias_kind":"pith_short_12","alias_value":"BBQUQYONHTXN","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"BBQUQYONHTXNTZKR","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"BBQUQYON","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:387882ba65e710101337d8fbcd782ccb95aef97af4d4d6ae553a840d4370b616","target":"graph","created_at":"2026-05-17T23:53:02Z","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 demonstrate the ability of an epitaxial semiconductor-superconductor nanowire to serve as a field-effect switch to tune a superconducting cavity. Two superconducting gatemon qubits are coupled to the cavity, which acts as a quantum bus. Using a gate voltage to control the superconducting switch yields up to a factor of 8 change in qubit-qubit coupling between the on and off states without detrimental effect on qubit coherence. High-bandwidth operation of the coupling switch on nanosecond timescales degrades qubit coherence.","authors_text":"A. Kringh{\\o}j, C. M. Marcus, F. Kuemmeth, J. Nyg\\r{a}rd, K. D. Petersson, L. Casparis, N. J. Pearson, P. Krogstrup, T. W. Larsen","cross_cats":["cond-mat.supr-con","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-05T10:13:51Z","title":"Voltage-Controlled Superconducting Quantum Bus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01327","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:a14833acf065ee7722ea3a707921f4d6dc11813076bd913f4576f5afaa06879f","target":"record","created_at":"2026-05-17T23:53:02Z","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":"c365d4d25d7621bb9eba2bc118afed1041efe4d5d8dbe9a60d4e3635f7c6d4b7","cross_cats_sorted":["cond-mat.supr-con","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-02-05T10:13:51Z","title_canon_sha256":"ab4872c761a92fd33d14cc4767ddb7d4188764108ba96af0b547c6c39fa26b1c"},"schema_version":"1.0","source":{"id":"1802.01327","kind":"arxiv","version":1}},"canonical_sha256":"08614861cd3ceed9e551f0188569318e4cbf9e82bf8405f1b4cb2593e8ebdb3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08614861cd3ceed9e551f0188569318e4cbf9e82bf8405f1b4cb2593e8ebdb3b","first_computed_at":"2026-05-17T23:53:02.876654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:02.876654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k8syMAGQFBrPtly3lYA+5wd93dFqMRpc7FcXEJYMOW/5dYNByrd+eh0wGOSAhr5PTBZQrzII2zd8XwyLBwP+BQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:02.877310Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01327","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a14833acf065ee7722ea3a707921f4d6dc11813076bd913f4576f5afaa06879f","sha256:387882ba65e710101337d8fbcd782ccb95aef97af4d4d6ae553a840d4370b616"],"state_sha256":"fae69ab37da9c345c28ffd72faebf47434de07ee6ff0137bc862ff6ad09c2040"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z+fhTRLJ3jma3dggpdt7AWVfY5b9fPN0mHsB1p8TOl93nGlCGOIAtj34vmunnrAAj5JrfEq1CttgmD7jDM2eCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T17:46:04.902619Z","bundle_sha256":"6ed22928f4a3c9948942aa151558118dc83de90c863669e3b94136145075786d"}}