{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:KQP6SP5D5ND6QBEBIZUAWDTTZJ","short_pith_number":"pith:KQP6SP5D","canonical_record":{"source":{"id":"2503.17939","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-23T04:47:06Z","cross_cats_sorted":[],"title_canon_sha256":"76e74a1093a24e12926e427ff430fb879b0b79de3d0504620adc0cd802f3e848","abstract_canon_sha256":"ac114cce9fddf1aca2910dc061d89d207340c76265bb90ba121c3d849f7738a6"},"schema_version":"1.0"},"canonical_sha256":"541fe93fa3eb47e8048146680b0e73ca61593c8508276dcf776bb1a7a7323afb","source":{"kind":"arxiv","id":"2503.17939","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.17939","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"arxiv_version","alias_value":"2503.17939v1","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.17939","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_12","alias_value":"KQP6SP5D5ND6","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_16","alias_value":"KQP6SP5D5ND6QBEB","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_8","alias_value":"KQP6SP5D","created_at":"2026-07-05T10:37:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:KQP6SP5D5ND6QBEBIZUAWDTTZJ","target":"record","payload":{"canonical_record":{"source":{"id":"2503.17939","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-23T04:47:06Z","cross_cats_sorted":[],"title_canon_sha256":"76e74a1093a24e12926e427ff430fb879b0b79de3d0504620adc0cd802f3e848","abstract_canon_sha256":"ac114cce9fddf1aca2910dc061d89d207340c76265bb90ba121c3d849f7738a6"},"schema_version":"1.0"},"canonical_sha256":"541fe93fa3eb47e8048146680b0e73ca61593c8508276dcf776bb1a7a7323afb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:37:59.143511Z","signature_b64":"xJZEIdj8c1jvZxoUCXSF1pJ8IrQMvVRx1QkSqvf3boFNNlSTjxdLBKYc07xPwfyTGj46Xp1DnoiENDnUX4MuBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"541fe93fa3eb47e8048146680b0e73ca61593c8508276dcf776bb1a7a7323afb","last_reissued_at":"2026-07-05T10:37:59.142825Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:37:59.142825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.17939","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":"2026-07-05T10:37:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CYSxEKIoQQ/K1HiHq+z3i856gr/ZCJnofayFbAFKOKpgBd6PCLu5fcI8W3jkwElLhVelaa66DPfPhgPqhNkqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:57:11.050633Z"},"content_sha256":"fd450207629279e23c3a48bdf6f576fc4ef6f01936eca4d16c81a7f574e4caa3","schema_version":"1.0","event_id":"sha256:fd450207629279e23c3a48bdf6f576fc4ef6f01936eca4d16c81a7f574e4caa3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:KQP6SP5D5ND6QBEBIZUAWDTTZJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Feedback-enhanced quantum reservoir computing with weak measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Tomoya Monomi, Wataru Setoyama, Yoshihiko Hasegawa","submitted_at":"2025-03-23T04:47:06Z","abstract_excerpt":"Quantum reservoir computing (QRC) leverages the natural dynamics of quantum systems to process time-series data efficiently, offering a promising approach for near-term quantum devices. Unlike classical reservoir computing, the efficacy of feedback in QRC has not yet been thoroughly explored. Here, we develop a feedback-enhanced QRC framework with weak measurements. Weak measurements preserve information stored in quantum coherence, while feedback enhances nonlinearity and memory capacity. The implementation of our framework assumes an ensemble quantum system, such as nuclear magnetic resonanc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.17939","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/2503.17939/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":"2026-07-05T10:37:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LQuTmQqksrvYcewCY+rDgcWZ8w8oYw68K05fHFhvxUQ6SJQxRMv6b85XqhToKyYZCObgnQQUBs6fvYxeMzORCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T18:57:11.051164Z"},"content_sha256":"4d299229e540b56c0b9937f0a12f473a984b5cf6e28a924bed7f7612921e722b","schema_version":"1.0","event_id":"sha256:4d299229e540b56c0b9937f0a12f473a984b5cf6e28a924bed7f7612921e722b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/bundle.json","state_url":"https://pith.science/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/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":"2026-08-15T18:57:11Z","links":{"resolver":"https://pith.science/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ","bundle":"https://pith.science/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/bundle.json","state":"https://pith.science/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KQP6SP5D5ND6QBEBIZUAWDTTZJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:KQP6SP5D5ND6QBEBIZUAWDTTZJ","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":"ac114cce9fddf1aca2910dc061d89d207340c76265bb90ba121c3d849f7738a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-23T04:47:06Z","title_canon_sha256":"76e74a1093a24e12926e427ff430fb879b0b79de3d0504620adc0cd802f3e848"},"schema_version":"1.0","source":{"id":"2503.17939","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.17939","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"arxiv_version","alias_value":"2503.17939v1","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.17939","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_12","alias_value":"KQP6SP5D5ND6","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_16","alias_value":"KQP6SP5D5ND6QBEB","created_at":"2026-07-05T10:37:59Z"},{"alias_kind":"pith_short_8","alias_value":"KQP6SP5D","created_at":"2026-07-05T10:37:59Z"}],"graph_snapshots":[{"event_id":"sha256:4d299229e540b56c0b9937f0a12f473a984b5cf6e28a924bed7f7612921e722b","target":"graph","created_at":"2026-07-05T10:37:59Z","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/2503.17939/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum reservoir computing (QRC) leverages the natural dynamics of quantum systems to process time-series data efficiently, offering a promising approach for near-term quantum devices. Unlike classical reservoir computing, the efficacy of feedback in QRC has not yet been thoroughly explored. Here, we develop a feedback-enhanced QRC framework with weak measurements. Weak measurements preserve information stored in quantum coherence, while feedback enhances nonlinearity and memory capacity. The implementation of our framework assumes an ensemble quantum system, such as nuclear magnetic resonanc","authors_text":"Tomoya Monomi, Wataru Setoyama, Yoshihiko Hasegawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-23T04:47:06Z","title":"Feedback-enhanced quantum reservoir computing with weak measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.17939","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:fd450207629279e23c3a48bdf6f576fc4ef6f01936eca4d16c81a7f574e4caa3","target":"record","created_at":"2026-07-05T10:37:59Z","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":"ac114cce9fddf1aca2910dc061d89d207340c76265bb90ba121c3d849f7738a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-23T04:47:06Z","title_canon_sha256":"76e74a1093a24e12926e427ff430fb879b0b79de3d0504620adc0cd802f3e848"},"schema_version":"1.0","source":{"id":"2503.17939","kind":"arxiv","version":1}},"canonical_sha256":"541fe93fa3eb47e8048146680b0e73ca61593c8508276dcf776bb1a7a7323afb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"541fe93fa3eb47e8048146680b0e73ca61593c8508276dcf776bb1a7a7323afb","first_computed_at":"2026-07-05T10:37:59.142825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:37:59.142825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xJZEIdj8c1jvZxoUCXSF1pJ8IrQMvVRx1QkSqvf3boFNNlSTjxdLBKYc07xPwfyTGj46Xp1DnoiENDnUX4MuBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:37:59.143511Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.17939","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd450207629279e23c3a48bdf6f576fc4ef6f01936eca4d16c81a7f574e4caa3","sha256:4d299229e540b56c0b9937f0a12f473a984b5cf6e28a924bed7f7612921e722b"],"state_sha256":"dc79eb176059eeb46efa1ab22a5696cabbc9ac2b1299c6cefdb034ce70062007"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0HEXfsiR87If0zn+ye/PwviraExGXYCp2u6HoOrLFIkVJVV8cjimC1BqG7LHW9wNISiY7IUgSVbHdk1XF18CCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T18:57:11.056730Z","bundle_sha256":"d6d13d7cec5dbe8112b56fa14b1920c7da75e6c249d2d099f6cd68eac0038fd2"}}