{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:4NVYQ5HBCEVDET5QRPQUIQNCO6","short_pith_number":"pith:4NVYQ5HB","canonical_record":{"source":{"id":"cond-mat/0411425","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2004-11-16T22:00:02Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"796c52e713d7b4caece44c4e471536be414cd028f4eaa718ba7284f6dce4f2a7","abstract_canon_sha256":"dacdc0aa4b223bb3d8fa349de63417651f11405282d9fbbd765f36a12182dba2"},"schema_version":"1.0"},"canonical_sha256":"e36b8874e1112a324fb08be14441a2779b4719a6f1f80f3fa5373fce0dd4d5b0","source":{"kind":"arxiv","id":"cond-mat/0411425","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0411425","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0411425v2","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0411425","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_12","alias_value":"4NVYQ5HBCEVD","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_16","alias_value":"4NVYQ5HBCEVDET5Q","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_8","alias_value":"4NVYQ5HB","created_at":"2026-07-04T16:47:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:4NVYQ5HBCEVDET5QRPQUIQNCO6","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0411425","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2004-11-16T22:00:02Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"796c52e713d7b4caece44c4e471536be414cd028f4eaa718ba7284f6dce4f2a7","abstract_canon_sha256":"dacdc0aa4b223bb3d8fa349de63417651f11405282d9fbbd765f36a12182dba2"},"schema_version":"1.0"},"canonical_sha256":"e36b8874e1112a324fb08be14441a2779b4719a6f1f80f3fa5373fce0dd4d5b0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:47:26.985859Z","signature_b64":"IZ7b38AgY4QKXNzDlXM4EXW7rEbjxILX24f/escgBe+E57DuX1jSvdhNiS++/R1qQV2n/PUYLv6Nv4GVkT/0BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e36b8874e1112a324fb08be14441a2779b4719a6f1f80f3fa5373fce0dd4d5b0","last_reissued_at":"2026-07-04T16:47:26.985387Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:47:26.985387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0411425","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:47:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p4jver8sNRpjW0qc5RHWbJywnSBcdXZKu9wjqe8D/0IdSytR8dxsTq5UryjDjp1fgeIeCT4a+/fVvxaET/gSAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:26:04.866004Z"},"content_sha256":"6c51c97c21608f3ac3458dadc8bfde6347e33c14a541b544800f84f516c0e5f7","schema_version":"1.0","event_id":"sha256:6c51c97c21608f3ac3458dadc8bfde6347e33c14a541b544800f84f516c0e5f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:4NVYQ5HBCEVDET5QRPQUIQNCO6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Models of environment and T_1 relaxation in Josephson Charge Qubits","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"Boris L. Altshuler, Joakim Bergli, Lara Faoro, Yuri M. Galperin","submitted_at":"2004-11-16T22:00:02Z","abstract_excerpt":"A theoretical interpretation of the recent experiments of Astafiev et. al. on the T_1-relaxation rate in Josephson Charge Qubits is proposed. The experimentally observed reproducible nonmonotonic dependence of T_1 on the splitting E_J of the qubit levels suggests further specification of the previously proposed models of the background charge noise. From our point of view the most promising is the ``Andreev fluctuator'' model of the noise. In this model the fluctuator is a Cooper pair that tunnels from a superconductor and occupies a pair of localized electronic states. Within this model one c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0411425","kind":"arxiv","version":2},"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/cond-mat/0411425/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":"2026-07-04T16:47:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VOkpvKzk97VTzr0cnbrBXumwkIHxtDruSzcneOgQmh2+yaM0Vqkiz9IV7Cy8PtqNUlR0mPbn5D/N9AvVEIdGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T01:26:04.868391Z"},"content_sha256":"e836526433e66042d4cf430d2e98700d61586c3e88948b06adfc18327098d206","schema_version":"1.0","event_id":"sha256:e836526433e66042d4cf430d2e98700d61586c3e88948b06adfc18327098d206"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/bundle.json","state_url":"https://pith.science/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/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":"2026-08-21T01:26:04Z","links":{"resolver":"https://pith.science/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6","bundle":"https://pith.science/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/bundle.json","state":"https://pith.science/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4NVYQ5HBCEVDET5QRPQUIQNCO6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:4NVYQ5HBCEVDET5QRPQUIQNCO6","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":"dacdc0aa4b223bb3d8fa349de63417651f11405282d9fbbd765f36a12182dba2","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2004-11-16T22:00:02Z","title_canon_sha256":"796c52e713d7b4caece44c4e471536be414cd028f4eaa718ba7284f6dce4f2a7"},"schema_version":"1.0","source":{"id":"cond-mat/0411425","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0411425","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0411425v2","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0411425","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_12","alias_value":"4NVYQ5HBCEVD","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_16","alias_value":"4NVYQ5HBCEVDET5Q","created_at":"2026-07-04T16:47:26Z"},{"alias_kind":"pith_short_8","alias_value":"4NVYQ5HB","created_at":"2026-07-04T16:47:26Z"}],"graph_snapshots":[{"event_id":"sha256:e836526433e66042d4cf430d2e98700d61586c3e88948b06adfc18327098d206","target":"graph","created_at":"2026-07-04T16:47:26Z","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/cond-mat/0411425/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A theoretical interpretation of the recent experiments of Astafiev et. al. on the T_1-relaxation rate in Josephson Charge Qubits is proposed. The experimentally observed reproducible nonmonotonic dependence of T_1 on the splitting E_J of the qubit levels suggests further specification of the previously proposed models of the background charge noise. From our point of view the most promising is the ``Andreev fluctuator'' model of the noise. In this model the fluctuator is a Cooper pair that tunnels from a superconductor and occupies a pair of localized electronic states. Within this model one c","authors_text":"Boris L. Altshuler, Joakim Bergli, Lara Faoro, Yuri M. Galperin","cross_cats":["cond-mat.supr-con"],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2004-11-16T22:00:02Z","title":"Models of environment and T_1 relaxation in Josephson Charge Qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0411425","kind":"arxiv","version":2},"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":"sha256:6c51c97c21608f3ac3458dadc8bfde6347e33c14a541b544800f84f516c0e5f7","target":"record","created_at":"2026-07-04T16:47:26Z","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":"dacdc0aa4b223bb3d8fa349de63417651f11405282d9fbbd765f36a12182dba2","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"2004-11-16T22:00:02Z","title_canon_sha256":"796c52e713d7b4caece44c4e471536be414cd028f4eaa718ba7284f6dce4f2a7"},"schema_version":"1.0","source":{"id":"cond-mat/0411425","kind":"arxiv","version":2}},"canonical_sha256":"e36b8874e1112a324fb08be14441a2779b4719a6f1f80f3fa5373fce0dd4d5b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e36b8874e1112a324fb08be14441a2779b4719a6f1f80f3fa5373fce0dd4d5b0","first_computed_at":"2026-07-04T16:47:26.985387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:47:26.985387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IZ7b38AgY4QKXNzDlXM4EXW7rEbjxILX24f/escgBe+E57DuX1jSvdhNiS++/R1qQV2n/PUYLv6Nv4GVkT/0BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:47:26.985859Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0411425","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c51c97c21608f3ac3458dadc8bfde6347e33c14a541b544800f84f516c0e5f7","sha256:e836526433e66042d4cf430d2e98700d61586c3e88948b06adfc18327098d206"],"state_sha256":"ba5e43968b1153ed88d198dab501e43ec8810e08110c78dd5f6eada55255604d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LvUIzZyU7FV8OT/lXR72K3Aa66mekkPBAKiY2lew7hjAU0N5XKmeYs6FkVYPjJzkC6HnUjN6OZIiLLtBdks9DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T01:26:04.873147Z","bundle_sha256":"1548f1df385d62c425cf7d49e05d444634ebe2cce37f4aa6b942d40016408057"}}