{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZWEAOSZERVO477J2OINZ5ESMIS","short_pith_number":"pith:ZWEAOSZE","canonical_record":{"source":{"id":"1901.01345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-05T00:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"4d6b1f7671d1e1654816e738d3f2550031d311d778220ea8cd7d5cdd47eaffa9","abstract_canon_sha256":"57e599660a720372c293cb0f3602f4b81effd9a0b7bf8c6a2d756c092e040285"},"schema_version":"1.0"},"canonical_sha256":"cd88074b248d5dcffd3a721b9e924c4492a8a15f892ef73679cbffd984b23c92","source":{"kind":"arxiv","id":"1901.01345","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01345","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01345v1","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01345","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"ZWEAOSZERVO4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZWEAOSZERVO477J2","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZWEAOSZE","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZWEAOSZERVO477J2OINZ5ESMIS","target":"record","payload":{"canonical_record":{"source":{"id":"1901.01345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-05T00:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"4d6b1f7671d1e1654816e738d3f2550031d311d778220ea8cd7d5cdd47eaffa9","abstract_canon_sha256":"57e599660a720372c293cb0f3602f4b81effd9a0b7bf8c6a2d756c092e040285"},"schema_version":"1.0"},"canonical_sha256":"cd88074b248d5dcffd3a721b9e924c4492a8a15f892ef73679cbffd984b23c92","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:52.169920Z","signature_b64":"DOyN2pHaki+2wuQG/O6BON9sMRMndAbwLHElDYYV+m/j3cXisJf35bCj6t4p/EM97G45pLnAfiakbDTv2NaKCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd88074b248d5dcffd3a721b9e924c4492a8a15f892ef73679cbffd984b23c92","last_reissued_at":"2026-05-17T23:56:52.169416Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:52.169416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.01345","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":"2026-05-17T23:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wBFZ2yp2XJbFzB7cdP247o5VmCwMiixjRljKvwvQd/hevZ1TxoC/ZF2WJ6DANw7Pn0IdDw387Fq3H2zCWAvQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T16:34:42.870302Z"},"content_sha256":"d4ca138aa77f0f6d70c11d09a178ae620513ec3d033790fbef6a82c7c54ea5e9","schema_version":"1.0","event_id":"sha256:d4ca138aa77f0f6d70c11d09a178ae620513ec3d033790fbef6a82c7c54ea5e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZWEAOSZERVO477J2OINZ5ESMIS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A squeezing invariant measurement to test displacement of quantum Gaussian states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Yoshiyuki Tsuda","submitted_at":"2019-01-05T00:24:18Z","abstract_excerpt":"We consider a hypothesis testing problem for displacement parameters of n independent copies of an m-mode squeezed quantum Gaussian state whose mixture parameter is known. Given n>1, we construct a quantum measurement as a test using an observable which is invariant by n-fold tensor product of any m-mode squeezing operator. For a pure state case, we calculate the type II error probability of this test. We compare this test with a Hotelling's T-squared test which is based on heterodyne measurements."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01345","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":""},"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":"2026-05-17T23:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IDKfYzh1RG6/7YHJPk597/mh53gXxZyNnvk+xjqk3iH50S88nEq3XRH5RHXzPfQAd+y31AQVeD0Z6dL0itzxAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T16:34:42.870836Z"},"content_sha256":"430e9c9fd707f27a957a50ad8751ce7eb18a92678cbbf1158e8b4869a752bea8","schema_version":"1.0","event_id":"sha256:430e9c9fd707f27a957a50ad8751ce7eb18a92678cbbf1158e8b4869a752bea8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZWEAOSZERVO477J2OINZ5ESMIS/bundle.json","state_url":"https://pith.science/pith/ZWEAOSZERVO477J2OINZ5ESMIS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZWEAOSZERVO477J2OINZ5ESMIS/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":"2026-06-23T16:34:42Z","links":{"resolver":"https://pith.science/pith/ZWEAOSZERVO477J2OINZ5ESMIS","bundle":"https://pith.science/pith/ZWEAOSZERVO477J2OINZ5ESMIS/bundle.json","state":"https://pith.science/pith/ZWEAOSZERVO477J2OINZ5ESMIS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZWEAOSZERVO477J2OINZ5ESMIS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZWEAOSZERVO477J2OINZ5ESMIS","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":"57e599660a720372c293cb0f3602f4b81effd9a0b7bf8c6a2d756c092e040285","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-05T00:24:18Z","title_canon_sha256":"4d6b1f7671d1e1654816e738d3f2550031d311d778220ea8cd7d5cdd47eaffa9"},"schema_version":"1.0","source":{"id":"1901.01345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.01345","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1901.01345v1","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.01345","created_at":"2026-05-17T23:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"ZWEAOSZERVO4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZWEAOSZERVO477J2","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZWEAOSZE","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:430e9c9fd707f27a957a50ad8751ce7eb18a92678cbbf1158e8b4869a752bea8","target":"graph","created_at":"2026-05-17T23:56:52Z","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"},"paper":{"abstract_excerpt":"We consider a hypothesis testing problem for displacement parameters of n independent copies of an m-mode squeezed quantum Gaussian state whose mixture parameter is known. Given n>1, we construct a quantum measurement as a test using an observable which is invariant by n-fold tensor product of any m-mode squeezing operator. For a pure state case, we calculate the type II error probability of this test. We compare this test with a Hotelling's T-squared test which is based on heterodyne measurements.","authors_text":"Yoshiyuki Tsuda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-05T00:24:18Z","title":"A squeezing invariant measurement to test displacement of quantum Gaussian states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.01345","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:d4ca138aa77f0f6d70c11d09a178ae620513ec3d033790fbef6a82c7c54ea5e9","target":"record","created_at":"2026-05-17T23:56:52Z","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":"57e599660a720372c293cb0f3602f4b81effd9a0b7bf8c6a2d756c092e040285","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-05T00:24:18Z","title_canon_sha256":"4d6b1f7671d1e1654816e738d3f2550031d311d778220ea8cd7d5cdd47eaffa9"},"schema_version":"1.0","source":{"id":"1901.01345","kind":"arxiv","version":1}},"canonical_sha256":"cd88074b248d5dcffd3a721b9e924c4492a8a15f892ef73679cbffd984b23c92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cd88074b248d5dcffd3a721b9e924c4492a8a15f892ef73679cbffd984b23c92","first_computed_at":"2026-05-17T23:56:52.169416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:52.169416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DOyN2pHaki+2wuQG/O6BON9sMRMndAbwLHElDYYV+m/j3cXisJf35bCj6t4p/EM97G45pLnAfiakbDTv2NaKCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:52.169920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.01345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4ca138aa77f0f6d70c11d09a178ae620513ec3d033790fbef6a82c7c54ea5e9","sha256:430e9c9fd707f27a957a50ad8751ce7eb18a92678cbbf1158e8b4869a752bea8"],"state_sha256":"87de139dd57f371c80e69b488d5819c1259620ab5a214b267c7653f80fec5ed2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sE+Gbt/WMUNJcmoJ2tXx6fEOrZ7OjfxY08us0pBfnSss+Vt8snUQaHv7jiwxozuUwyi4NgsGmAvMVgfSJUkdAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T16:34:42.873528Z","bundle_sha256":"67750d40e66f32a8bf0f6e7142d992c5e5ddd573bef4876db7e66a5c57ee8161"}}