{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:EEVPPODPH4PTGEQLZ2N6OAGSKU","short_pith_number":"pith:EEVPPODP","canonical_record":{"source":{"id":"cond-mat/0108231","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-08-14T17:23:26Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"5d36061e4d3edff439b188b4616fca2f1f7e874eae9cfbf6c4669f13d2381bb6","abstract_canon_sha256":"92ebff135c950a0b6aba31397247b7a6ad0f9c074fd0c27756335bcd8f2da7cb"},"schema_version":"1.0"},"canonical_sha256":"212af7b86f3f1f33120bce9be700d255113e122c9012c4990acfff71cfb95cb8","source":{"kind":"arxiv","id":"cond-mat/0108231","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0108231","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0108231v1","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0108231","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_12","alias_value":"EEVPPODPH4PT","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_16","alias_value":"EEVPPODPH4PTGEQL","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_8","alias_value":"EEVPPODP","created_at":"2026-07-04T16:26:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:EEVPPODPH4PTGEQLZ2N6OAGSKU","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0108231","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-08-14T17:23:26Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"5d36061e4d3edff439b188b4616fca2f1f7e874eae9cfbf6c4669f13d2381bb6","abstract_canon_sha256":"92ebff135c950a0b6aba31397247b7a6ad0f9c074fd0c27756335bcd8f2da7cb"},"schema_version":"1.0"},"canonical_sha256":"212af7b86f3f1f33120bce9be700d255113e122c9012c4990acfff71cfb95cb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:26:08.281145Z","signature_b64":"abMBiyI7YlxAsbJd0AeJIf760hRWFVQyzTMGHXOSqrTh4s5GWMWRo11rqZxSV9jIV73ojYHM6Wss/PFf9pTBAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"212af7b86f3f1f33120bce9be700d255113e122c9012c4990acfff71cfb95cb8","last_reissued_at":"2026-07-04T16:26:08.280749Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:26:08.280749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0108231","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":"2026-07-04T16:26:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r7F9DIX8iiUAS/Y8dLcRcZT8JkWM/UVxUVLi9+iDXvgmAvW0/Sq5SVEG3vfKqAE33T7/uEKv70NmrFXpl3qECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T12:50:21.194186Z"},"content_sha256":"6f76bfccb02d1b661277417c48c351267f53bf6c4e4cdbb8700fbd2a81b52eed","schema_version":"1.0","event_id":"sha256:6f76bfccb02d1b661277417c48c351267f53bf6c4e4cdbb8700fbd2a81b52eed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:EEVPPODPH4PTGEQLZ2N6OAGSKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DC-SQUID Sensitivity for Readout of Entangled State Quantum Bits","license":"","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.supr-con","authors_text":"H. Takayanagi, H. Tanaka, S. Saito, Y. Sekine","submitted_at":"2001-08-14T17:23:26Z","abstract_excerpt":"We propose a scheme for entangled state measurement at flux qubits (quantum bits) depending on the sensitivity measurement of a DC-SQUID (Superconducting QUantum Interference Device). The DC-SQUID is used as a flux qubit readout device. The switching current distribution of a DC-SQUID is sufficiently narrow to distinguish between two ground states of three Josephson junction qubits with a large mutual inductance between a qubit and the DC-SQUID. But discrimination between two ground states becomes difficult with the smaller mutual inductance that is preferable as regards of qubit coherence. Ho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0108231","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/cond-mat/0108231/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":"2026-07-04T16:26:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6dp8TmzPnX43HPd4asW3GKBQ1HSEDEKGDHt8bdUGCG0rgtuROYRnFiX0N6r0UcbIbrKnSCGbZkyzIF9dGeLeBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T12:50:21.194578Z"},"content_sha256":"55e935553c0f0d7a1805d37632be4c1f1cb1048d51158c7f0334d02154752d4f","schema_version":"1.0","event_id":"sha256:55e935553c0f0d7a1805d37632be4c1f1cb1048d51158c7f0334d02154752d4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/bundle.json","state_url":"https://pith.science/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/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":"2026-07-16T12:50:21Z","links":{"resolver":"https://pith.science/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU","bundle":"https://pith.science/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/bundle.json","state":"https://pith.science/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EEVPPODPH4PTGEQLZ2N6OAGSKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:EEVPPODPH4PTGEQLZ2N6OAGSKU","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":"92ebff135c950a0b6aba31397247b7a6ad0f9c074fd0c27756335bcd8f2da7cb","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-08-14T17:23:26Z","title_canon_sha256":"5d36061e4d3edff439b188b4616fca2f1f7e874eae9cfbf6c4669f13d2381bb6"},"schema_version":"1.0","source":{"id":"cond-mat/0108231","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0108231","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0108231v1","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0108231","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_12","alias_value":"EEVPPODPH4PT","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_16","alias_value":"EEVPPODPH4PTGEQL","created_at":"2026-07-04T16:26:08Z"},{"alias_kind":"pith_short_8","alias_value":"EEVPPODP","created_at":"2026-07-04T16:26:08Z"}],"graph_snapshots":[{"event_id":"sha256:55e935553c0f0d7a1805d37632be4c1f1cb1048d51158c7f0334d02154752d4f","target":"graph","created_at":"2026-07-04T16:26:08Z","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/0108231/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a scheme for entangled state measurement at flux qubits (quantum bits) depending on the sensitivity measurement of a DC-SQUID (Superconducting QUantum Interference Device). The DC-SQUID is used as a flux qubit readout device. The switching current distribution of a DC-SQUID is sufficiently narrow to distinguish between two ground states of three Josephson junction qubits with a large mutual inductance between a qubit and the DC-SQUID. But discrimination between two ground states becomes difficult with the smaller mutual inductance that is preferable as regards of qubit coherence. Ho","authors_text":"H. Takayanagi, H. Tanaka, S. Saito, Y. Sekine","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-08-14T17:23:26Z","title":"DC-SQUID Sensitivity for Readout of Entangled State Quantum Bits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0108231","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":"sha256:6f76bfccb02d1b661277417c48c351267f53bf6c4e4cdbb8700fbd2a81b52eed","target":"record","created_at":"2026-07-04T16:26:08Z","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":"92ebff135c950a0b6aba31397247b7a6ad0f9c074fd0c27756335bcd8f2da7cb","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-08-14T17:23:26Z","title_canon_sha256":"5d36061e4d3edff439b188b4616fca2f1f7e874eae9cfbf6c4669f13d2381bb6"},"schema_version":"1.0","source":{"id":"cond-mat/0108231","kind":"arxiv","version":1}},"canonical_sha256":"212af7b86f3f1f33120bce9be700d255113e122c9012c4990acfff71cfb95cb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"212af7b86f3f1f33120bce9be700d255113e122c9012c4990acfff71cfb95cb8","first_computed_at":"2026-07-04T16:26:08.280749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:26:08.280749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"abMBiyI7YlxAsbJd0AeJIf760hRWFVQyzTMGHXOSqrTh4s5GWMWRo11rqZxSV9jIV73ojYHM6Wss/PFf9pTBAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:26:08.281145Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0108231","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f76bfccb02d1b661277417c48c351267f53bf6c4e4cdbb8700fbd2a81b52eed","sha256:55e935553c0f0d7a1805d37632be4c1f1cb1048d51158c7f0334d02154752d4f"],"state_sha256":"a550c6371f7b2f62ab8c4a4eab5f08144d2d1df4b3208724abf880cb275b3c9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kL6t1b+V8Tb5exirYpF5UkdiDiCQjepuBQ1Gakah7OL7jqTP56DJyWyyKzZqS9J49C7LBJ6HWMzHg/jYZkU/Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-16T12:50:21.197234Z","bundle_sha256":"81901991a8359b37bd765a1bc8d51e487c44b64bc52520fcde8ea4a5279d496f"}}