{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:T2J45KMTPOJGWDWBN4CBVBU5G7","short_pith_number":"pith:T2J45KMT","canonical_record":{"source":{"id":"2509.07702","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-09-09T13:09:48Z","cross_cats_sorted":[],"title_canon_sha256":"5c6ce6a707e418cb15b6364f5420d2c0f53ee1ff11fcd35b63e3b7b5e8e1ac19","abstract_canon_sha256":"5740af8293f2c223c91846ec2bd4457bbbcf674b447596776530d0507bbd12ab"},"schema_version":"1.0"},"canonical_sha256":"9e93cea9937b926b0ec16f041a869d37cacc3c48f5e64f91f59e6bbf04946411","source":{"kind":"arxiv","id":"2509.07702","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.07702","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"arxiv_version","alias_value":"2509.07702v1","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07702","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_12","alias_value":"T2J45KMTPOJG","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_16","alias_value":"T2J45KMTPOJGWDWB","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_8","alias_value":"T2J45KMT","created_at":"2026-07-05T12:07:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:T2J45KMTPOJGWDWBN4CBVBU5G7","target":"record","payload":{"canonical_record":{"source":{"id":"2509.07702","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-09-09T13:09:48Z","cross_cats_sorted":[],"title_canon_sha256":"5c6ce6a707e418cb15b6364f5420d2c0f53ee1ff11fcd35b63e3b7b5e8e1ac19","abstract_canon_sha256":"5740af8293f2c223c91846ec2bd4457bbbcf674b447596776530d0507bbd12ab"},"schema_version":"1.0"},"canonical_sha256":"9e93cea9937b926b0ec16f041a869d37cacc3c48f5e64f91f59e6bbf04946411","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:07:26.736322Z","signature_b64":"+chxdjIhOAwnF13JXU7alQdUYYri0aQWz/cEG/HwCGkKLqH9bryICAZJFxPncrJZfIFXlbxEbkAy9Gi5MOsIBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e93cea9937b926b0ec16f041a869d37cacc3c48f5e64f91f59e6bbf04946411","last_reissued_at":"2026-07-05T12:07:26.735821Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:07:26.735821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.07702","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":"2026-07-05T12:07:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d0rbFr8MMtY9vlelxguTeqWPD12UosZrHkvnom2khOhGYY4dHDIlo4HAJcx1AdTsCmTrqf+8MDWA04BZ3b0TCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T02:36:35.939055Z"},"content_sha256":"ccbcd5629240bc231c483efdc73a742c8c3c4a8423e1c72ce9ab6eb981ee3a7f","schema_version":"1.0","event_id":"sha256:ccbcd5629240bc231c483efdc73a742c8c3c4a8423e1c72ce9ab6eb981ee3a7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:T2J45KMTPOJGWDWBN4CBVBU5G7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Weakly-Driven Quantum Walks for Memory-Constrained Pauli Channel Learning","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ming-Yang Li, Shengjun Wu, Yi-Ran Xiao, Yuan-Zhuo Wang, Zeng-Bing Chen","submitted_at":"2025-09-09T13:09:48Z","abstract_excerpt":"Accurate characterization of quantum noise, exemplified by the Pauli channel, is a cornerstone for building fault-tolerant quantum computers. A recent protocol (PRX Quantum 6, 020323 (2025)) combining channel concatenation and quantum memory has achieved an exponential reduction in measurement complexity for Pauli channel estimation. This efficiency, however, hinges on using logarithmic quantum memory to suppress hypothesis test errors. In this work, we introduce a mechanism termed the ``weakly-driven quantum walk'' to mitigate the demand for high-quality quantum memory. By exploiting the dist"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07702","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/2509.07702/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":"2026-07-05T12:07:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lOv2lAez0rzc9gSNwGjouKA8HzTxLdExKCqB8QK9kjSX97Rn4cTJCPEuE5RSptF0bkyIf0JwoAMPkzYG9TgDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T02:36:35.939548Z"},"content_sha256":"a6c59d0b4c3f9bbc49720dbfcdfc0b985be0aeacba35532dcc99c9b564f51ecc","schema_version":"1.0","event_id":"sha256:a6c59d0b4c3f9bbc49720dbfcdfc0b985be0aeacba35532dcc99c9b564f51ecc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/bundle.json","state_url":"https://pith.science/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/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":"2026-08-19T02:36:35Z","links":{"resolver":"https://pith.science/pith/T2J45KMTPOJGWDWBN4CBVBU5G7","bundle":"https://pith.science/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/bundle.json","state":"https://pith.science/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T2J45KMTPOJGWDWBN4CBVBU5G7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:T2J45KMTPOJGWDWBN4CBVBU5G7","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":"5740af8293f2c223c91846ec2bd4457bbbcf674b447596776530d0507bbd12ab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-09-09T13:09:48Z","title_canon_sha256":"5c6ce6a707e418cb15b6364f5420d2c0f53ee1ff11fcd35b63e3b7b5e8e1ac19"},"schema_version":"1.0","source":{"id":"2509.07702","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.07702","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"arxiv_version","alias_value":"2509.07702v1","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.07702","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_12","alias_value":"T2J45KMTPOJG","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_16","alias_value":"T2J45KMTPOJGWDWB","created_at":"2026-07-05T12:07:26Z"},{"alias_kind":"pith_short_8","alias_value":"T2J45KMT","created_at":"2026-07-05T12:07:26Z"}],"graph_snapshots":[{"event_id":"sha256:a6c59d0b4c3f9bbc49720dbfcdfc0b985be0aeacba35532dcc99c9b564f51ecc","target":"graph","created_at":"2026-07-05T12:07:26Z","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/2509.07702/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate characterization of quantum noise, exemplified by the Pauli channel, is a cornerstone for building fault-tolerant quantum computers. A recent protocol (PRX Quantum 6, 020323 (2025)) combining channel concatenation and quantum memory has achieved an exponential reduction in measurement complexity for Pauli channel estimation. This efficiency, however, hinges on using logarithmic quantum memory to suppress hypothesis test errors. In this work, we introduce a mechanism termed the ``weakly-driven quantum walk'' to mitigate the demand for high-quality quantum memory. By exploiting the dist","authors_text":"Ming-Yang Li, Shengjun Wu, Yi-Ran Xiao, Yuan-Zhuo Wang, Zeng-Bing Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-09-09T13:09:48Z","title":"Weakly-Driven Quantum Walks for Memory-Constrained Pauli Channel Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.07702","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:ccbcd5629240bc231c483efdc73a742c8c3c4a8423e1c72ce9ab6eb981ee3a7f","target":"record","created_at":"2026-07-05T12:07:26Z","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":"5740af8293f2c223c91846ec2bd4457bbbcf674b447596776530d0507bbd12ab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-09-09T13:09:48Z","title_canon_sha256":"5c6ce6a707e418cb15b6364f5420d2c0f53ee1ff11fcd35b63e3b7b5e8e1ac19"},"schema_version":"1.0","source":{"id":"2509.07702","kind":"arxiv","version":1}},"canonical_sha256":"9e93cea9937b926b0ec16f041a869d37cacc3c48f5e64f91f59e6bbf04946411","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e93cea9937b926b0ec16f041a869d37cacc3c48f5e64f91f59e6bbf04946411","first_computed_at":"2026-07-05T12:07:26.735821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:07:26.735821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+chxdjIhOAwnF13JXU7alQdUYYri0aQWz/cEG/HwCGkKLqH9bryICAZJFxPncrJZfIFXlbxEbkAy9Gi5MOsIBA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:07:26.736322Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.07702","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ccbcd5629240bc231c483efdc73a742c8c3c4a8423e1c72ce9ab6eb981ee3a7f","sha256:a6c59d0b4c3f9bbc49720dbfcdfc0b985be0aeacba35532dcc99c9b564f51ecc"],"state_sha256":"a44ddcea83db8d57b1c981a9923dce042611f5197c8c05190acc1a7e0690165c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ijsin3Bo4UFFwAC5G8ClRzf37T20oEfGUBUPfjcImEUJFTvv+FmL9eCyOfFOK0jDYBH/ujerSjoCoAPeHmoYDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T02:36:35.943570Z","bundle_sha256":"e092b00dc507e88fe10e813012aaf0f55b00f263359989194002ffbad7f70994"}}