{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:37IOE4NT52Z5LYWH2BIVI4NG7F","short_pith_number":"pith:37IOE4NT","canonical_record":{"source":{"id":"2209.11207","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-09-22T17:47:21Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"f43285f50f537fe39cfc1851d55d9d99ad70d2a76dc7a50f1fceb38fcbac0a4d","abstract_canon_sha256":"5065c06539514fa8bd70686cf1086b8a86fd13e1d9ab3210a728a203fcd2bd67"},"schema_version":"1.0"},"canonical_sha256":"dfd0e271b3eeb3d5e2c7d0515471a6f94dc47f24c750e24a504629fb86c47f72","source":{"kind":"arxiv","id":"2209.11207","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.11207","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"arxiv_version","alias_value":"2209.11207v1","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.11207","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_12","alias_value":"37IOE4NT52Z5","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_16","alias_value":"37IOE4NT52Z5LYWH","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_8","alias_value":"37IOE4NT","created_at":"2026-07-05T05:00:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:37IOE4NT52Z5LYWH2BIVI4NG7F","target":"record","payload":{"canonical_record":{"source":{"id":"2209.11207","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-09-22T17:47:21Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"f43285f50f537fe39cfc1851d55d9d99ad70d2a76dc7a50f1fceb38fcbac0a4d","abstract_canon_sha256":"5065c06539514fa8bd70686cf1086b8a86fd13e1d9ab3210a728a203fcd2bd67"},"schema_version":"1.0"},"canonical_sha256":"dfd0e271b3eeb3d5e2c7d0515471a6f94dc47f24c750e24a504629fb86c47f72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:00:11.737173Z","signature_b64":"pplwDGp0GM4T+0CkDRe6mBup1SzRQPXtEUsNW/YBiNhC0W9AY258ACFrBJZr+F6wSnFGhdFFu/ztBQHRQQpFAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dfd0e271b3eeb3d5e2c7d0515471a6f94dc47f24c750e24a504629fb86c47f72","last_reissued_at":"2026-07-05T05:00:11.736697Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:00:11.736697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.11207","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":"2026-07-05T05:00:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"59/76DPHSOhzXpCnanWeRRFyTLj/O539JGFN3UM8yUpwo1mI1mkrN19edLn9l2Dp7aylYWEnYABhkaObKR8nAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:55:11.726056Z"},"content_sha256":"b893914d0f0b173cf120ba862f90f338a689215b007782e7b25e52588a117d0f","schema_version":"1.0","event_id":"sha256:b893914d0f0b173cf120ba862f90f338a689215b007782e7b25e52588a117d0f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:37IOE4NT52Z5LYWH2BIVI4NG7F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond Heisenberg Limit Quantum Metrology through Quantum Signal Processing","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"quant-ph","authors_text":"Jonathan Gross, Murphy Yuezhen Niu, Yulong Dong","submitted_at":"2022-09-22T17:47:21Z","abstract_excerpt":"Leveraging quantum effects in metrology such as entanglement and coherence allows one to measure parameters with enhanced sensitivity. However, time-dependent noise can disrupt such Heisenberg-limited amplification. We propose a quantum-metrology method based on the quantum-signal-processing framework to overcome these realistic noise-induced limitations in practical quantum metrology. Our algorithm separates the gate parameter $\\varphi$~(single-qubit Z phase) that is susceptible to time-dependent error from the target gate parameter $\\theta$~(swap-angle between |10> and |01> states) that is l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.11207","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/2209.11207/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":"2026-07-05T05:00:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M9Y/ixD5kxLAaQBeotzReR+KEGDfn/7fEXfFBgs7tVojGpZCQNnGId9XlDlmfcmkd2hs6r5qV5pplb4LPAgsAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:55:11.726446Z"},"content_sha256":"234583cab69e9bf7332db60e01599a3987d04e9af07b3a21702c69bfd7d0047d","schema_version":"1.0","event_id":"sha256:234583cab69e9bf7332db60e01599a3987d04e9af07b3a21702c69bfd7d0047d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/bundle.json","state_url":"https://pith.science/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/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":"2026-07-07T06:55:11Z","links":{"resolver":"https://pith.science/pith/37IOE4NT52Z5LYWH2BIVI4NG7F","bundle":"https://pith.science/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/bundle.json","state":"https://pith.science/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/37IOE4NT52Z5LYWH2BIVI4NG7F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:37IOE4NT52Z5LYWH2BIVI4NG7F","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":"5065c06539514fa8bd70686cf1086b8a86fd13e1d9ab3210a728a203fcd2bd67","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-09-22T17:47:21Z","title_canon_sha256":"f43285f50f537fe39cfc1851d55d9d99ad70d2a76dc7a50f1fceb38fcbac0a4d"},"schema_version":"1.0","source":{"id":"2209.11207","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.11207","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"arxiv_version","alias_value":"2209.11207v1","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.11207","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_12","alias_value":"37IOE4NT52Z5","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_16","alias_value":"37IOE4NT52Z5LYWH","created_at":"2026-07-05T05:00:11Z"},{"alias_kind":"pith_short_8","alias_value":"37IOE4NT","created_at":"2026-07-05T05:00:11Z"}],"graph_snapshots":[{"event_id":"sha256:234583cab69e9bf7332db60e01599a3987d04e9af07b3a21702c69bfd7d0047d","target":"graph","created_at":"2026-07-05T05:00:11Z","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/2209.11207/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Leveraging quantum effects in metrology such as entanglement and coherence allows one to measure parameters with enhanced sensitivity. However, time-dependent noise can disrupt such Heisenberg-limited amplification. We propose a quantum-metrology method based on the quantum-signal-processing framework to overcome these realistic noise-induced limitations in practical quantum metrology. Our algorithm separates the gate parameter $\\varphi$~(single-qubit Z phase) that is susceptible to time-dependent error from the target gate parameter $\\theta$~(swap-angle between |10> and |01> states) that is l","authors_text":"Jonathan Gross, Murphy Yuezhen Niu, Yulong Dong","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-09-22T17:47:21Z","title":"Beyond Heisenberg Limit Quantum Metrology through Quantum Signal Processing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.11207","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:b893914d0f0b173cf120ba862f90f338a689215b007782e7b25e52588a117d0f","target":"record","created_at":"2026-07-05T05:00:11Z","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":"5065c06539514fa8bd70686cf1086b8a86fd13e1d9ab3210a728a203fcd2bd67","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2022-09-22T17:47:21Z","title_canon_sha256":"f43285f50f537fe39cfc1851d55d9d99ad70d2a76dc7a50f1fceb38fcbac0a4d"},"schema_version":"1.0","source":{"id":"2209.11207","kind":"arxiv","version":1}},"canonical_sha256":"dfd0e271b3eeb3d5e2c7d0515471a6f94dc47f24c750e24a504629fb86c47f72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dfd0e271b3eeb3d5e2c7d0515471a6f94dc47f24c750e24a504629fb86c47f72","first_computed_at":"2026-07-05T05:00:11.736697Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:00:11.736697Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pplwDGp0GM4T+0CkDRe6mBup1SzRQPXtEUsNW/YBiNhC0W9AY258ACFrBJZr+F6wSnFGhdFFu/ztBQHRQQpFAw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:00:11.737173Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.11207","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b893914d0f0b173cf120ba862f90f338a689215b007782e7b25e52588a117d0f","sha256:234583cab69e9bf7332db60e01599a3987d04e9af07b3a21702c69bfd7d0047d"],"state_sha256":"c304bc74580df9e07b5ea55e9a47c66ad36bb7ef6e775d870abe27d346a3faba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LRIbvs6lpK2bN7PMYfUMkwzGAi0DCg7QYeFkVJYJqO/f9mEH2Ovsxo9gqyr8fXJR645jDksdTEaKEYFgM0M2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:55:11.728422Z","bundle_sha256":"0261e7ba31d88e4e7ce66c91f510d1db9696e95fb7459b7699b7b27ed13706aa"}}