{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:WUKELX652RUV4TWMNHGUAJCOYI","short_pith_number":"pith:WUKELX65","canonical_record":{"source":{"id":"2407.17407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-07-24T16:42:58Z","cross_cats_sorted":[],"title_canon_sha256":"0efa77576bbb09143b90c4b95d1f4653beb63568ec5c84c4dff623419bd0aa49","abstract_canon_sha256":"f82ce05f15f194fc722618319d314e326f5c8fe26176936976a95777be7c1c6c"},"schema_version":"1.0"},"canonical_sha256":"b51445dfddd4695e4ecc69cd40244ec23d987498edc4a1f6e9ba6a1147ac1b03","source":{"kind":"arxiv","id":"2407.17407","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.17407","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"arxiv_version","alias_value":"2407.17407v1","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.17407","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_12","alias_value":"WUKELX652RUV","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_16","alias_value":"WUKELX652RUV4TWM","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_8","alias_value":"WUKELX65","created_at":"2026-07-05T10:53:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:WUKELX652RUV4TWMNHGUAJCOYI","target":"record","payload":{"canonical_record":{"source":{"id":"2407.17407","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-07-24T16:42:58Z","cross_cats_sorted":[],"title_canon_sha256":"0efa77576bbb09143b90c4b95d1f4653beb63568ec5c84c4dff623419bd0aa49","abstract_canon_sha256":"f82ce05f15f194fc722618319d314e326f5c8fe26176936976a95777be7c1c6c"},"schema_version":"1.0"},"canonical_sha256":"b51445dfddd4695e4ecc69cd40244ec23d987498edc4a1f6e9ba6a1147ac1b03","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:53:46.395366Z","signature_b64":"LHy6k7+kD7kWitlltDMZhZlZJTx29rkw8CaHiYRKWW4Erl6ppzGr8u1Zr+JTRKBrCDjPsijsnaJhsIodOyuJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b51445dfddd4695e4ecc69cd40244ec23d987498edc4a1f6e9ba6a1147ac1b03","last_reissued_at":"2026-07-05T10:53:46.394836Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:53:46.394836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.17407","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":"2026-07-05T10:53:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wfuSXHH7AINfa/AApVyUVT5sfQwZsqM9dFyqp0E15E7DAQRs+QSiCMuvIyvmBXqna+NxyIaUV389n7n+nuDKDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:44:50.350231Z"},"content_sha256":"646bb7c590d75b3a56e2df570039ec889e299fa789dc9b2adc86ba832b2aef78","schema_version":"1.0","event_id":"sha256:646bb7c590d75b3a56e2df570039ec889e299fa789dc9b2adc86ba832b2aef78"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:WUKELX652RUV4TWMNHGUAJCOYI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Systematic study of High $E_J/E_C$ transmon qudits up to $d = 12$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"E. Champion, M. S. Blok, R. W. Parker, Z. Wang","submitted_at":"2024-07-24T16:42:58Z","abstract_excerpt":"Qudits provide a resource-efficient alternative to qubits for quantum information processing. The multilevel nature of the transmon, with its individually resolvable transition frequencies, makes it an attractive platform for superconducting circuit-based qudits. In this work, we systematically analyze the trade-offs associated with encoding high-dimensional quantum information in fixed-frequency transmons. Designing high $E_J/E_C$ ratios of up to 325, we observe up to 12 levels ($d=12$) on a single transmon. Despite the decreased anharmonicity, we demonstrate process infidelities $e_f < 3 \\ti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.17407","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.17407/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:53:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PxB/jUP/nBBCEvvHRbakDyJVVqNjmYOSv8luogpiuQfs6u6GXIACF9JBNRueGXLDwELbC8CRHqmdz+EYsLGKBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:44:50.351202Z"},"content_sha256":"46c0e705ed1456c1bd7c2d6bb945ef7349bc44fd13a9eaaa8f52cdeb357fb3ef","schema_version":"1.0","event_id":"sha256:46c0e705ed1456c1bd7c2d6bb945ef7349bc44fd13a9eaaa8f52cdeb357fb3ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WUKELX652RUV4TWMNHGUAJCOYI/bundle.json","state_url":"https://pith.science/pith/WUKELX652RUV4TWMNHGUAJCOYI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WUKELX652RUV4TWMNHGUAJCOYI/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":"2026-08-13T18:44:50Z","links":{"resolver":"https://pith.science/pith/WUKELX652RUV4TWMNHGUAJCOYI","bundle":"https://pith.science/pith/WUKELX652RUV4TWMNHGUAJCOYI/bundle.json","state":"https://pith.science/pith/WUKELX652RUV4TWMNHGUAJCOYI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WUKELX652RUV4TWMNHGUAJCOYI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:WUKELX652RUV4TWMNHGUAJCOYI","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":"f82ce05f15f194fc722618319d314e326f5c8fe26176936976a95777be7c1c6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-07-24T16:42:58Z","title_canon_sha256":"0efa77576bbb09143b90c4b95d1f4653beb63568ec5c84c4dff623419bd0aa49"},"schema_version":"1.0","source":{"id":"2407.17407","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.17407","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"arxiv_version","alias_value":"2407.17407v1","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.17407","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_12","alias_value":"WUKELX652RUV","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_16","alias_value":"WUKELX652RUV4TWM","created_at":"2026-07-05T10:53:46Z"},{"alias_kind":"pith_short_8","alias_value":"WUKELX65","created_at":"2026-07-05T10:53:46Z"}],"graph_snapshots":[{"event_id":"sha256:46c0e705ed1456c1bd7c2d6bb945ef7349bc44fd13a9eaaa8f52cdeb357fb3ef","target":"graph","created_at":"2026-07-05T10:53:46Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2407.17407/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Qudits provide a resource-efficient alternative to qubits for quantum information processing. The multilevel nature of the transmon, with its individually resolvable transition frequencies, makes it an attractive platform for superconducting circuit-based qudits. In this work, we systematically analyze the trade-offs associated with encoding high-dimensional quantum information in fixed-frequency transmons. Designing high $E_J/E_C$ ratios of up to 325, we observe up to 12 levels ($d=12$) on a single transmon. Despite the decreased anharmonicity, we demonstrate process infidelities $e_f < 3 \\ti","authors_text":"E. Champion, M. S. Blok, R. W. Parker, Z. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-07-24T16:42:58Z","title":"Systematic study of High $E_J/E_C$ transmon qudits up to $d = 12$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.17407","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":"sha256:646bb7c590d75b3a56e2df570039ec889e299fa789dc9b2adc86ba832b2aef78","target":"record","created_at":"2026-07-05T10:53:46Z","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":"f82ce05f15f194fc722618319d314e326f5c8fe26176936976a95777be7c1c6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-07-24T16:42:58Z","title_canon_sha256":"0efa77576bbb09143b90c4b95d1f4653beb63568ec5c84c4dff623419bd0aa49"},"schema_version":"1.0","source":{"id":"2407.17407","kind":"arxiv","version":1}},"canonical_sha256":"b51445dfddd4695e4ecc69cd40244ec23d987498edc4a1f6e9ba6a1147ac1b03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b51445dfddd4695e4ecc69cd40244ec23d987498edc4a1f6e9ba6a1147ac1b03","first_computed_at":"2026-07-05T10:53:46.394836Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:53:46.394836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LHy6k7+kD7kWitlltDMZhZlZJTx29rkw8CaHiYRKWW4Erl6ppzGr8u1Zr+JTRKBrCDjPsijsnaJhsIodOyuJCw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:53:46.395366Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.17407","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:646bb7c590d75b3a56e2df570039ec889e299fa789dc9b2adc86ba832b2aef78","sha256:46c0e705ed1456c1bd7c2d6bb945ef7349bc44fd13a9eaaa8f52cdeb357fb3ef"],"state_sha256":"5d659507e7ac8277d5a9d32f80bfe5d22c30bf842ea58801f5f1e85a22012f90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NU76Ex26tDHYJPE0//uGpYf3GpFB/8O2QUBVdkPrgwVfe9mvo4BT1vjvyWNHoCSet4B2Lx3et3sUprzqejfYBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T18:44:50.359023Z","bundle_sha256":"8d3f6739a29e38426d420c90a42eeab2da82e5981c74501a838709c98266b11b"}}