{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZCQXENROJPEJDOYNB25EYK2IP5","short_pith_number":"pith:ZCQXENRO","canonical_record":{"source":{"id":"2512.10465","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-11T09:40:31Z","cross_cats_sorted":[],"title_canon_sha256":"4373585e3d483aa043a3250b617f018f65b51000e908ad2120be4aa362c7af7a","abstract_canon_sha256":"9004b388add4f990bf232d5532e226535def356704936f18ec0428ba3a53dfd6"},"schema_version":"1.0"},"canonical_sha256":"c8a172362e4bc891bb0d0eba4c2b487f7c56388051d0ce8cbba743610b79d45e","source":{"kind":"arxiv","id":"2512.10465","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.10465","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"arxiv_version","alias_value":"2512.10465v4","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.10465","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZCQXENROJPEJ","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_16","alias_value":"ZCQXENROJPEJDOYN","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_8","alias_value":"ZCQXENRO","created_at":"2026-06-03T01:05:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZCQXENROJPEJDOYNB25EYK2IP5","target":"record","payload":{"canonical_record":{"source":{"id":"2512.10465","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-11T09:40:31Z","cross_cats_sorted":[],"title_canon_sha256":"4373585e3d483aa043a3250b617f018f65b51000e908ad2120be4aa362c7af7a","abstract_canon_sha256":"9004b388add4f990bf232d5532e226535def356704936f18ec0428ba3a53dfd6"},"schema_version":"1.0"},"canonical_sha256":"c8a172362e4bc891bb0d0eba4c2b487f7c56388051d0ce8cbba743610b79d45e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T01:05:08.238327Z","signature_b64":"7HSVuo6G5iWCah3LbzkmzVw/CfW/PA1bkmT5t4/zZcO4aVcz7Cs+nokUnMfPI2RjmPJ1O4pW4L1YSRzjr9ZvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c8a172362e4bc891bb0d0eba4c2b487f7c56388051d0ce8cbba743610b79d45e","last_reissued_at":"2026-06-03T01:05:08.237777Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T01:05:08.237777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.10465","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-03T01:05:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K5aaWTwXPWD1LjOn0WaDnjR9JmmkcShBrfT+o17uw9vpvfVzzZ1HTC45w4HxARu+rOwYMtKctnbwG9c8aj9jAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T09:08:30.050651Z"},"content_sha256":"9025cbc7b7527d81561123d65047099cebea4409f4ab6ff2315989685cbc0ca2","schema_version":"1.0","event_id":"sha256:9025cbc7b7527d81561123d65047099cebea4409f4ab6ff2315989685cbc0ca2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZCQXENROJPEJDOYNB25EYK2IP5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimal Distributed Similarity Estimation of Quantum Channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Congcong Zheng, Kun Wang, Ping Xu, Xutao Yu, Zaichen Zhang","submitted_at":"2025-12-11T09:40:31Z","abstract_excerpt":"As quantum processors are deployed across different hardware platforms and remote cloud laboratories, a basic physical question is whether two black-box devices realize the same quantum process, without relying on a trusted classical description. We formulate the core primitive for this comparison task as \\emph{distributed similarity estimation of quantum channels} (DSEC): given local access to two unknown channels, estimate the normalized inner product of their Choi states. We prove that the optimal query complexity of DSEC is $\\Theta(\\max\\{\\sqrt{d}/\\varepsilon,1/\\varepsilon^2\\})$, where $d$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.10465","kind":"arxiv","version":4},"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/2512.10465/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":"2026-06-03T01:05:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mTZoA2WE/k3dbt2UPyHpRJ3AexAkUCN951AnXt2oRalK/KTWVqtOlc9gJx2Uh52K8LdySSm78v1DF07A+vvdCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T09:08:30.051012Z"},"content_sha256":"b67c4ad2ef4ac6e043387caf4a5ab96393274ddc19e303e662771fbd9eefce01","schema_version":"1.0","event_id":"sha256:b67c4ad2ef4ac6e043387caf4a5ab96393274ddc19e303e662771fbd9eefce01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZCQXENROJPEJDOYNB25EYK2IP5/bundle.json","state_url":"https://pith.science/pith/ZCQXENROJPEJDOYNB25EYK2IP5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZCQXENROJPEJDOYNB25EYK2IP5/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":"2026-06-06T09:08:30Z","links":{"resolver":"https://pith.science/pith/ZCQXENROJPEJDOYNB25EYK2IP5","bundle":"https://pith.science/pith/ZCQXENROJPEJDOYNB25EYK2IP5/bundle.json","state":"https://pith.science/pith/ZCQXENROJPEJDOYNB25EYK2IP5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZCQXENROJPEJDOYNB25EYK2IP5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZCQXENROJPEJDOYNB25EYK2IP5","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":"9004b388add4f990bf232d5532e226535def356704936f18ec0428ba3a53dfd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-11T09:40:31Z","title_canon_sha256":"4373585e3d483aa043a3250b617f018f65b51000e908ad2120be4aa362c7af7a"},"schema_version":"1.0","source":{"id":"2512.10465","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.10465","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"arxiv_version","alias_value":"2512.10465v4","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.10465","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZCQXENROJPEJ","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_16","alias_value":"ZCQXENROJPEJDOYN","created_at":"2026-06-03T01:05:08Z"},{"alias_kind":"pith_short_8","alias_value":"ZCQXENRO","created_at":"2026-06-03T01:05:08Z"}],"graph_snapshots":[{"event_id":"sha256:b67c4ad2ef4ac6e043387caf4a5ab96393274ddc19e303e662771fbd9eefce01","target":"graph","created_at":"2026-06-03T01:05:08Z","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/2512.10465/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As quantum processors are deployed across different hardware platforms and remote cloud laboratories, a basic physical question is whether two black-box devices realize the same quantum process, without relying on a trusted classical description. We formulate the core primitive for this comparison task as \\emph{distributed similarity estimation of quantum channels} (DSEC): given local access to two unknown channels, estimate the normalized inner product of their Choi states. We prove that the optimal query complexity of DSEC is $\\Theta(\\max\\{\\sqrt{d}/\\varepsilon,1/\\varepsilon^2\\})$, where $d$ ","authors_text":"Congcong Zheng, Kun Wang, Ping Xu, Xutao Yu, Zaichen Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-11T09:40:31Z","title":"Optimal Distributed Similarity Estimation of Quantum Channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.10465","kind":"arxiv","version":4},"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":"sha256:9025cbc7b7527d81561123d65047099cebea4409f4ab6ff2315989685cbc0ca2","target":"record","created_at":"2026-06-03T01:05:08Z","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":"9004b388add4f990bf232d5532e226535def356704936f18ec0428ba3a53dfd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-11T09:40:31Z","title_canon_sha256":"4373585e3d483aa043a3250b617f018f65b51000e908ad2120be4aa362c7af7a"},"schema_version":"1.0","source":{"id":"2512.10465","kind":"arxiv","version":4}},"canonical_sha256":"c8a172362e4bc891bb0d0eba4c2b487f7c56388051d0ce8cbba743610b79d45e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8a172362e4bc891bb0d0eba4c2b487f7c56388051d0ce8cbba743610b79d45e","first_computed_at":"2026-06-03T01:05:08.237777Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:05:08.237777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7HSVuo6G5iWCah3LbzkmzVw/CfW/PA1bkmT5t4/zZcO4aVcz7Cs+nokUnMfPI2RjmPJ1O4pW4L1YSRzjr9ZvAA==","signature_status":"signed_v1","signed_at":"2026-06-03T01:05:08.238327Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.10465","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9025cbc7b7527d81561123d65047099cebea4409f4ab6ff2315989685cbc0ca2","sha256:b67c4ad2ef4ac6e043387caf4a5ab96393274ddc19e303e662771fbd9eefce01"],"state_sha256":"20a2be6822278af71de83c190851fea72b7322eaccfed2cec80289d829dd0034"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sVyMauk0xuvufMh8oaDdP/y0RruNMJuUx4rrpSDYWC0RPo2U61UzLQ0annrkg/VnYfs7yYesIohwy6Fc9yekDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T09:08:30.052994Z","bundle_sha256":"a40bcc90dc1a94217c29d8bdd8d8d3976e4d43e63e155b1a370518b306411d79"}}