{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:L6LICGX3YULOGX2H7TN624HCNZ","short_pith_number":"pith:L6LICGX3","canonical_record":{"source":{"id":"1101.2942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-15T04:40:37Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"3de93dc7face897e533e3ff805cae0ef2ac408313b155494662b93e57fba2e94","abstract_canon_sha256":"0128b312b5eb34acc7254e7f381fef3ee973a3cc3fb466f7493b0901d0ee96cb"},"schema_version":"1.0"},"canonical_sha256":"5f96811afbc516e35f47fcdbed70e26e6437a509e87ebed06eef065d34b9d302","source":{"kind":"arxiv","id":"1101.2942","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2942","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2942v1","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2942","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"L6LICGX3YULO","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6LICGX3YULOGX2H","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6LICGX3","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:L6LICGX3YULOGX2H7TN624HCNZ","target":"record","payload":{"canonical_record":{"source":{"id":"1101.2942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-15T04:40:37Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"3de93dc7face897e533e3ff805cae0ef2ac408313b155494662b93e57fba2e94","abstract_canon_sha256":"0128b312b5eb34acc7254e7f381fef3ee973a3cc3fb466f7493b0901d0ee96cb"},"schema_version":"1.0"},"canonical_sha256":"5f96811afbc516e35f47fcdbed70e26e6437a509e87ebed06eef065d34b9d302","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:52.925103Z","signature_b64":"2s41BpPUQYFeVYKWxp29HMVboKGpAyWdzQDb3Pb1jG/4t+EhlVydaRNg1n/ROMYQeN8QNJX68d8fdhR/5amDAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f96811afbc516e35f47fcdbed70e26e6437a509e87ebed06eef065d34b9d302","last_reissued_at":"2026-05-18T02:34:52.924675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:52.924675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.2942","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eUgNWX4+SAe+spNwcxEfB9sTOCZ9YpsWV+ShK1F+SQu8VR/wg8RX+hl15SZCMBVV5fgrXGg9HyPujcad2fgUDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:26:55.766855Z"},"content_sha256":"b223e9c74e427c6555a9b40057126a5493f21bdf9416ac68f472d620eb20c04a","schema_version":"1.0","event_id":"sha256:b223e9c74e427c6555a9b40057126a5493f21bdf9416ac68f472d620eb20c04a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:L6LICGX3YULOGX2H7TN624HCNZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Universal Quantum Degeneracy Point for Superconducting Qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Lin Tian, Xiu-Hao Deng, Yong Hu","submitted_at":"2011-01-15T04:40:37Z","abstract_excerpt":"The quantum degeneracy point approach [D. Vion et al., Science 296, 886 (2002)] effectively protects superconducting qubits from low-frequency noise that couples with the qubits as transverse noise. However, low-frequency noise in superconducting qubits can originate from various mechanisms and can couple with the qubits either as transverse or as longitudinal noise. Here, we present a quantum circuit containing a universal quantum degeneracy point that protects an encoded qubit from arbitrary low-frequency noise. We further show that universal quantum logic gates can be performed on the encod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2942","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uJ+5ECdoKSVaaV+i2Uf9FnlFJBUTRF+ARhx6envSDPWvMsRgivPwag8Hf5uuloqoQBH9Z1L1kLMTcFpdyaECAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:26:55.767515Z"},"content_sha256":"f27168a70807870daef93862ee5e6a2bf05d36222fb93f2a628f7e633df7c199","schema_version":"1.0","event_id":"sha256:f27168a70807870daef93862ee5e6a2bf05d36222fb93f2a628f7e633df7c199"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L6LICGX3YULOGX2H7TN624HCNZ/bundle.json","state_url":"https://pith.science/pith/L6LICGX3YULOGX2H7TN624HCNZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L6LICGX3YULOGX2H7TN624HCNZ/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":"2026-05-24T17:26:55Z","links":{"resolver":"https://pith.science/pith/L6LICGX3YULOGX2H7TN624HCNZ","bundle":"https://pith.science/pith/L6LICGX3YULOGX2H7TN624HCNZ/bundle.json","state":"https://pith.science/pith/L6LICGX3YULOGX2H7TN624HCNZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L6LICGX3YULOGX2H7TN624HCNZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:L6LICGX3YULOGX2H7TN624HCNZ","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":"0128b312b5eb34acc7254e7f381fef3ee973a3cc3fb466f7493b0901d0ee96cb","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-15T04:40:37Z","title_canon_sha256":"3de93dc7face897e533e3ff805cae0ef2ac408313b155494662b93e57fba2e94"},"schema_version":"1.0","source":{"id":"1101.2942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2942","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2942v1","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2942","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"L6LICGX3YULO","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6LICGX3YULOGX2H","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6LICGX3","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:f27168a70807870daef93862ee5e6a2bf05d36222fb93f2a628f7e633df7c199","target":"graph","created_at":"2026-05-18T02:34:52Z","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 quantum degeneracy point approach [D. Vion et al., Science 296, 886 (2002)] effectively protects superconducting qubits from low-frequency noise that couples with the qubits as transverse noise. However, low-frequency noise in superconducting qubits can originate from various mechanisms and can couple with the qubits either as transverse or as longitudinal noise. Here, we present a quantum circuit containing a universal quantum degeneracy point that protects an encoded qubit from arbitrary low-frequency noise. We further show that universal quantum logic gates can be performed on the encod","authors_text":"Lin Tian, Xiu-Hao Deng, Yong Hu","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-15T04:40:37Z","title":"Universal Quantum Degeneracy Point for Superconducting Qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2942","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:b223e9c74e427c6555a9b40057126a5493f21bdf9416ac68f472d620eb20c04a","target":"record","created_at":"2026-05-18T02:34:52Z","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":"0128b312b5eb34acc7254e7f381fef3ee973a3cc3fb466f7493b0901d0ee96cb","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-01-15T04:40:37Z","title_canon_sha256":"3de93dc7face897e533e3ff805cae0ef2ac408313b155494662b93e57fba2e94"},"schema_version":"1.0","source":{"id":"1101.2942","kind":"arxiv","version":1}},"canonical_sha256":"5f96811afbc516e35f47fcdbed70e26e6437a509e87ebed06eef065d34b9d302","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f96811afbc516e35f47fcdbed70e26e6437a509e87ebed06eef065d34b9d302","first_computed_at":"2026-05-18T02:34:52.924675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:52.924675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2s41BpPUQYFeVYKWxp29HMVboKGpAyWdzQDb3Pb1jG/4t+EhlVydaRNg1n/ROMYQeN8QNJX68d8fdhR/5amDAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:52.925103Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.2942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b223e9c74e427c6555a9b40057126a5493f21bdf9416ac68f472d620eb20c04a","sha256:f27168a70807870daef93862ee5e6a2bf05d36222fb93f2a628f7e633df7c199"],"state_sha256":"e6ba8fb685b4b35f9351da914c1274541d67af6ac49d17e3d1ff2ff5101648ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yi+uHTTmevpWd42/J/sas4mIqgnGdKgdYgJ3aRp0WBuUxeeT3iCK+vg/idtfgcRgruoSSAZ5DdMLDLBCtaZ+BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T17:26:55.771339Z","bundle_sha256":"b283ff659d3e3c631671c20e9f70254053f18e32a505ceebb6602f13f666fcca"}}