{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:7A6JKO4HASX5Z6CLGZTNWTWNQP","short_pith_number":"pith:7A6JKO4H","canonical_record":{"source":{"id":"quant-ph/0601090","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2006-01-13T10:50:11Z","cross_cats_sorted":[],"title_canon_sha256":"cee358c9848f4c2e669ea7ed60494eb5da352f7d899a3d542fa071074e0a7581","abstract_canon_sha256":"eff24ae1588817e9cf4dc97c1c159f230f99e9254a013027df5f512c61715049"},"schema_version":"1.0"},"canonical_sha256":"f83c953b8704afdcf84b3666db4ecd83d90250663fd3e88c07dc0816d30df867","source":{"kind":"arxiv","id":"quant-ph/0601090","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0601090","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0601090v2","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0601090","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_12","alias_value":"7A6JKO4HASX5","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_16","alias_value":"7A6JKO4HASX5Z6CL","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_8","alias_value":"7A6JKO4H","created_at":"2026-07-04T14:52:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:7A6JKO4HASX5Z6CLGZTNWTWNQP","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0601090","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2006-01-13T10:50:11Z","cross_cats_sorted":[],"title_canon_sha256":"cee358c9848f4c2e669ea7ed60494eb5da352f7d899a3d542fa071074e0a7581","abstract_canon_sha256":"eff24ae1588817e9cf4dc97c1c159f230f99e9254a013027df5f512c61715049"},"schema_version":"1.0"},"canonical_sha256":"f83c953b8704afdcf84b3666db4ecd83d90250663fd3e88c07dc0816d30df867","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:52:57.410458Z","signature_b64":"6wcOYgQbj8SRdGNMP9ZC31UvfE99CLY4c1ipGIoPzBbCGAF7GWP79JCdFftlnTC/VruduejjT3uyfmbNl9YYDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f83c953b8704afdcf84b3666db4ecd83d90250663fd3e88c07dc0816d30df867","last_reissued_at":"2026-07-04T14:52:57.410069Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:52:57.410069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0601090","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T14:52:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PpN3TZyR5QPNVSGI78XCv4DvBkj/MAgK+9vFHhr+p3qq00CjTBu2WDmyAxwZmsBcMrQ4gPRMJ8QxmGm15jXoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T14:53:03.287750Z"},"content_sha256":"1592eb9259b2acd9382d705df6e916449bac211cae5db6a3a44abb9839922839","schema_version":"1.0","event_id":"sha256:1592eb9259b2acd9382d705df6e916449bac211cae5db6a3a44abb9839922839"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:7A6JKO4HASX5Z6CLGZTNWTWNQP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Identification and Distance Measures of Measurement Apparatus","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Mingsheng Ying, Runyao Duan, Yuan Feng, Zhengfeng Ji","submitted_at":"2006-01-13T10:50:11Z","abstract_excerpt":"We propose simple schemes that can perfectly identify projective measurement apparatus secretly chosen from a finite set. Entanglements are used in these schemes both to make possible the perfect identification and to improve the efficiency significantly. A brief discussion on the problem of how to appropriately define distance measures of measurements is also provided based on the results of identification."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0601090","kind":"arxiv","version":2},"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/quant-ph/0601090/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":"2026-07-04T14:52:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9C+JXc7Xb9+/Nx80ny/yesHEnZx84dXSAtMVxc3TqQVjJeS/ivb3TglUIUWCT644OxMjnDOD996LIc+ww4gkAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T14:53:03.288232Z"},"content_sha256":"6723faf09323867b7fb0be34966c7be910af856393519d3a82e124e76578038d","schema_version":"1.0","event_id":"sha256:6723faf09323867b7fb0be34966c7be910af856393519d3a82e124e76578038d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/bundle.json","state_url":"https://pith.science/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/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":"2026-08-04T14:53:03Z","links":{"resolver":"https://pith.science/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP","bundle":"https://pith.science/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/bundle.json","state":"https://pith.science/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7A6JKO4HASX5Z6CLGZTNWTWNQP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:7A6JKO4HASX5Z6CLGZTNWTWNQP","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":"eff24ae1588817e9cf4dc97c1c159f230f99e9254a013027df5f512c61715049","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2006-01-13T10:50:11Z","title_canon_sha256":"cee358c9848f4c2e669ea7ed60494eb5da352f7d899a3d542fa071074e0a7581"},"schema_version":"1.0","source":{"id":"quant-ph/0601090","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0601090","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0601090v2","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0601090","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_12","alias_value":"7A6JKO4HASX5","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_16","alias_value":"7A6JKO4HASX5Z6CL","created_at":"2026-07-04T14:52:57Z"},{"alias_kind":"pith_short_8","alias_value":"7A6JKO4H","created_at":"2026-07-04T14:52:57Z"}],"graph_snapshots":[{"event_id":"sha256:6723faf09323867b7fb0be34966c7be910af856393519d3a82e124e76578038d","target":"graph","created_at":"2026-07-04T14:52:57Z","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/quant-ph/0601090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose simple schemes that can perfectly identify projective measurement apparatus secretly chosen from a finite set. Entanglements are used in these schemes both to make possible the perfect identification and to improve the efficiency significantly. A brief discussion on the problem of how to appropriately define distance measures of measurements is also provided based on the results of identification.","authors_text":"Mingsheng Ying, Runyao Duan, Yuan Feng, Zhengfeng Ji","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2006-01-13T10:50:11Z","title":"Identification and Distance Measures of Measurement Apparatus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0601090","kind":"arxiv","version":2},"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":"sha256:1592eb9259b2acd9382d705df6e916449bac211cae5db6a3a44abb9839922839","target":"record","created_at":"2026-07-04T14:52:57Z","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":"eff24ae1588817e9cf4dc97c1c159f230f99e9254a013027df5f512c61715049","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2006-01-13T10:50:11Z","title_canon_sha256":"cee358c9848f4c2e669ea7ed60494eb5da352f7d899a3d542fa071074e0a7581"},"schema_version":"1.0","source":{"id":"quant-ph/0601090","kind":"arxiv","version":2}},"canonical_sha256":"f83c953b8704afdcf84b3666db4ecd83d90250663fd3e88c07dc0816d30df867","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f83c953b8704afdcf84b3666db4ecd83d90250663fd3e88c07dc0816d30df867","first_computed_at":"2026-07-04T14:52:57.410069Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:52:57.410069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6wcOYgQbj8SRdGNMP9ZC31UvfE99CLY4c1ipGIoPzBbCGAF7GWP79JCdFftlnTC/VruduejjT3uyfmbNl9YYDA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:52:57.410458Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0601090","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1592eb9259b2acd9382d705df6e916449bac211cae5db6a3a44abb9839922839","sha256:6723faf09323867b7fb0be34966c7be910af856393519d3a82e124e76578038d"],"state_sha256":"dd1a493be56e6b9daa8c66d807c3303702642eb5e2d21b5ef3d03770ae5b95d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XhOeqiluyjWEM6efSaLBCWN/VkRnh5Qak6NNhcwFBuhNcKNHDSoHjNqIFbr6qusp7QrjcT/3vmX+sJnWcANSCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T14:53:03.291460Z","bundle_sha256":"11549cc1a44dcf6904dc9fbb3ef03fc96d35c1f5753f136dc6c6c21d3491a6b8"}}