{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:OJDIT4FROE4LDIES65PANCMWVX","short_pith_number":"pith:OJDIT4FR","canonical_record":{"source":{"id":"0812.0378","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-12-01T22:00:10Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"9cb0c54901e3d3b2269b6a9fec45522a1fcef1414306ff18373774497fa29500","abstract_canon_sha256":"59642614f45bac54cca66a88de405136b005afa0ecdda165dd7566afacdee9a3"},"schema_version":"1.0"},"canonical_sha256":"724689f0b17138b1a092f75e068996adc5721e33215a1660f2a304cb4d2b9d7d","source":{"kind":"arxiv","id":"0812.0378","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0378","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0378v1","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0378","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_12","alias_value":"OJDIT4FROE4L","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJDIT4FROE4LDIES","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJDIT4FR","created_at":"2026-07-04T15:43:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:OJDIT4FROE4LDIES65PANCMWVX","target":"record","payload":{"canonical_record":{"source":{"id":"0812.0378","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-12-01T22:00:10Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"9cb0c54901e3d3b2269b6a9fec45522a1fcef1414306ff18373774497fa29500","abstract_canon_sha256":"59642614f45bac54cca66a88de405136b005afa0ecdda165dd7566afacdee9a3"},"schema_version":"1.0"},"canonical_sha256":"724689f0b17138b1a092f75e068996adc5721e33215a1660f2a304cb4d2b9d7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:43:43.301806Z","signature_b64":"6/rZ/e3HhRbMFjbLmjfTgqP6mqB151QcjaNQzMTKJ1kKWKTStp35GXN5Oz66IS2RfPqYQz1XCRf4kEYQIrY5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"724689f0b17138b1a092f75e068996adc5721e33215a1660f2a304cb4d2b9d7d","last_reissued_at":"2026-07-04T15:43:43.301443Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:43:43.301443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.0378","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":"2026-07-04T15:43:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lxuJJzOW2PnPnZ1XbDw6InGlMv/vVZDvtSR2pjNGYMyc5pyttvyODm0ZZ88aqnLqt5M9fco1anOjnD5lSgR+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:31:32.977797Z"},"content_sha256":"a22d04a1dc324560d5094f3737d25593509b741727b0ad725531be45c5270292","schema_version":"1.0","event_id":"sha256:a22d04a1dc324560d5094f3737d25593509b741727b0ad725531be45c5270292"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:OJDIT4FROE4LDIES65PANCMWVX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geometrical dependence of low frequency noise in superconducting flux qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Fung, A.J. Berkley, A. Kaul, A. Kleinsasser, B. Bumble, E. Ladizinsky, E. Tolkacheva, F. Maibaum, J. Johansson, M.H.S. Amin, M.W. Johnson, P. Bunyk, R. Harris, T. Lanting","submitted_at":"2008-12-01T22:00:10Z","abstract_excerpt":"A general method for directly measuring the low-frequency flux noise (below 10 Hz) in compound Josephson junction superconducting flux qubits has been used to study a series of 85 devices of varying design. The variation in flux noise across sets of qubits with identical designs was observed to be small. However, the levels of flux noise systematically varied between qubit designs with strong dependence upon qubit wiring length and wiring width. Furthermore, qubits fabricated above a superconducting ground plane yielded lower noise than qubits without such a layer. These results support the hy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0378","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/0812.0378/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":"2026-07-04T15:43:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2kaEPFeEI5jaFd83QwmjmCavxR9axQ1WmPKadZXgIgqBGkxMX44UE2ca8RqvhPjoXDCZZLYyNsA4QP1/h1xFBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:31:32.978172Z"},"content_sha256":"c7245c0d807b2c454a861f79acee5c03032fb6a84c00271ab03365ebea11a407","schema_version":"1.0","event_id":"sha256:c7245c0d807b2c454a861f79acee5c03032fb6a84c00271ab03365ebea11a407"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJDIT4FROE4LDIES65PANCMWVX/bundle.json","state_url":"https://pith.science/pith/OJDIT4FROE4LDIES65PANCMWVX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJDIT4FROE4LDIES65PANCMWVX/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":"2026-07-07T12:31:32Z","links":{"resolver":"https://pith.science/pith/OJDIT4FROE4LDIES65PANCMWVX","bundle":"https://pith.science/pith/OJDIT4FROE4LDIES65PANCMWVX/bundle.json","state":"https://pith.science/pith/OJDIT4FROE4LDIES65PANCMWVX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJDIT4FROE4LDIES65PANCMWVX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:OJDIT4FROE4LDIES65PANCMWVX","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":"59642614f45bac54cca66a88de405136b005afa0ecdda165dd7566afacdee9a3","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-12-01T22:00:10Z","title_canon_sha256":"9cb0c54901e3d3b2269b6a9fec45522a1fcef1414306ff18373774497fa29500"},"schema_version":"1.0","source":{"id":"0812.0378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.0378","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"arxiv_version","alias_value":"0812.0378v1","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0378","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_12","alias_value":"OJDIT4FROE4L","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJDIT4FROE4LDIES","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJDIT4FR","created_at":"2026-07-04T15:43:43Z"}],"graph_snapshots":[{"event_id":"sha256:c7245c0d807b2c454a861f79acee5c03032fb6a84c00271ab03365ebea11a407","target":"graph","created_at":"2026-07-04T15:43:43Z","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/0812.0378/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A general method for directly measuring the low-frequency flux noise (below 10 Hz) in compound Josephson junction superconducting flux qubits has been used to study a series of 85 devices of varying design. The variation in flux noise across sets of qubits with identical designs was observed to be small. However, the levels of flux noise systematically varied between qubit designs with strong dependence upon qubit wiring length and wiring width. Furthermore, qubits fabricated above a superconducting ground plane yielded lower noise than qubits without such a layer. These results support the hy","authors_text":"A. Fung, A.J. Berkley, A. Kaul, A. Kleinsasser, B. Bumble, E. Ladizinsky, E. Tolkacheva, F. Maibaum, J. Johansson, M.H.S. Amin, M.W. Johnson, P. Bunyk, R. Harris, T. Lanting","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-12-01T22:00:10Z","title":"Geometrical dependence of low frequency noise in superconducting flux qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0378","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:a22d04a1dc324560d5094f3737d25593509b741727b0ad725531be45c5270292","target":"record","created_at":"2026-07-04T15:43:43Z","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":"59642614f45bac54cca66a88de405136b005afa0ecdda165dd7566afacdee9a3","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-12-01T22:00:10Z","title_canon_sha256":"9cb0c54901e3d3b2269b6a9fec45522a1fcef1414306ff18373774497fa29500"},"schema_version":"1.0","source":{"id":"0812.0378","kind":"arxiv","version":1}},"canonical_sha256":"724689f0b17138b1a092f75e068996adc5721e33215a1660f2a304cb4d2b9d7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"724689f0b17138b1a092f75e068996adc5721e33215a1660f2a304cb4d2b9d7d","first_computed_at":"2026-07-04T15:43:43.301443Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:43:43.301443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6/rZ/e3HhRbMFjbLmjfTgqP6mqB151QcjaNQzMTKJ1kKWKTStp35GXN5Oz66IS2RfPqYQz1XCRf4kEYQIrY5Bw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:43:43.301806Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.0378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a22d04a1dc324560d5094f3737d25593509b741727b0ad725531be45c5270292","sha256:c7245c0d807b2c454a861f79acee5c03032fb6a84c00271ab03365ebea11a407"],"state_sha256":"7ad77952ffb52ad5bcd05f72224f1ec0bdddaaa1a86866e34ebfc71ce7df392d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pwWqYoD2Iyx2Txfa90DSupayQu/U0LVHlWhi51e35ApFVYmLW1lVQJPDFciCOmqdMLb9zj/owgrS1VRdgDeRCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:31:32.980450Z","bundle_sha256":"4a47c3acfe2154cf18c8e03d4e891a40c5a08b6fb835e705769dabf0bd32fc81"}}