{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:EVANU4YGYUOLLC2D6EQEMYUGAE","short_pith_number":"pith:EVANU4YG","canonical_record":{"source":{"id":"quant-ph/0608184","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2006-08-23T20:10:47Z","cross_cats_sorted":[],"title_canon_sha256":"03658b50eb127dd7c7f7dbde514c5176fd0f3efa1b50d0aeca6baeeb4d83d245","abstract_canon_sha256":"eb31dee23686a991c18798a93a7c39fdd1d44a35b7877f5d07881e939af410e0"},"schema_version":"1.0"},"canonical_sha256":"2540da7306c51cb58b43f1204662860112b30eafd2add74d4b0ee8dcc4193ecc","source":{"kind":"arxiv","id":"quant-ph/0608184","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0608184","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0608184v3","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0608184","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"pith_short_12","alias_value":"EVANU4YGYUOL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EVANU4YGYUOLLC2D","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EVANU4YG","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:EVANU4YGYUOLLC2D6EQEMYUGAE","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0608184","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2006-08-23T20:10:47Z","cross_cats_sorted":[],"title_canon_sha256":"03658b50eb127dd7c7f7dbde514c5176fd0f3efa1b50d0aeca6baeeb4d83d245","abstract_canon_sha256":"eb31dee23686a991c18798a93a7c39fdd1d44a35b7877f5d07881e939af410e0"},"schema_version":"1.0"},"canonical_sha256":"2540da7306c51cb58b43f1204662860112b30eafd2add74d4b0ee8dcc4193ecc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:54.328494Z","signature_b64":"KQ2vWcd1OQpiELS9DgdQkCgSR38/kOeX2d332j31LSkk+F6CcFaxiBZZZ3HUQ8Mvzy/QCF3nS4nxEGPf3ouiDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2540da7306c51cb58b43f1204662860112b30eafd2add74d4b0ee8dcc4193ecc","last_reissued_at":"2026-05-18T01:37:54.327827Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:54.327827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0608184","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:37:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZKWpZ+KcmKMef/pCquE4QEMySDF7lw4EMm4NeAPVU2DCnskH0Iv67gUUgmmlttjgSds8ozcRp9xT6BnDIrGBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T18:42:09.057962Z"},"content_sha256":"81057ceb92de2c9e24278843f124130936a1bc4de5d34509f701794d069dc17e","schema_version":"1.0","event_id":"sha256:81057ceb92de2c9e24278843f124130936a1bc4de5d34509f701794d069dc17e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:EVANU4YGYUOLLC2D6EQEMYUGAE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantification of Continuous Variable Entanglement with only Two Types of Simple Measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gustavo Rigolin, Marcos C. de Oliveira","submitted_at":"2006-08-23T20:10:47Z","abstract_excerpt":"Here we propose an experimental set-up in which it is possible to measure the entanglement of a two-mode Gaussian state, be it pure or mixed, using only simple linear optical devices. After a proper unitary manipulation of the two-mode Gaussian state only number and purity measurements of just one of the modes suffice to give us a complete and exact knowledge of the state's entanglement."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0608184","kind":"arxiv","version":3},"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":"2026-05-18T01:37:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"twZrdh4j1mQPDchl0SxYag/T11X/1VbDYEQPCXHnzmbluqesJ1xKb3DQdiEbcS4FmgVJq0eOdHK/m5xny4/NBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T18:42:09.058301Z"},"content_sha256":"db9e0968bcfc020a263ab474c61849075409be6723a45280949d1565f02f5fe0","schema_version":"1.0","event_id":"sha256:db9e0968bcfc020a263ab474c61849075409be6723a45280949d1565f02f5fe0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/bundle.json","state_url":"https://pith.science/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/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":"2026-05-22T18:42:09Z","links":{"resolver":"https://pith.science/pith/EVANU4YGYUOLLC2D6EQEMYUGAE","bundle":"https://pith.science/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/bundle.json","state":"https://pith.science/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EVANU4YGYUOLLC2D6EQEMYUGAE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:EVANU4YGYUOLLC2D6EQEMYUGAE","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":"eb31dee23686a991c18798a93a7c39fdd1d44a35b7877f5d07881e939af410e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2006-08-23T20:10:47Z","title_canon_sha256":"03658b50eb127dd7c7f7dbde514c5176fd0f3efa1b50d0aeca6baeeb4d83d245"},"schema_version":"1.0","source":{"id":"quant-ph/0608184","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0608184","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0608184v3","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0608184","created_at":"2026-05-18T01:37:54Z"},{"alias_kind":"pith_short_12","alias_value":"EVANU4YGYUOL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EVANU4YGYUOLLC2D","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EVANU4YG","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:db9e0968bcfc020a263ab474c61849075409be6723a45280949d1565f02f5fe0","target":"graph","created_at":"2026-05-18T01:37:54Z","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":"Here we propose an experimental set-up in which it is possible to measure the entanglement of a two-mode Gaussian state, be it pure or mixed, using only simple linear optical devices. After a proper unitary manipulation of the two-mode Gaussian state only number and purity measurements of just one of the modes suffice to give us a complete and exact knowledge of the state's entanglement.","authors_text":"Gustavo Rigolin, Marcos C. de Oliveira","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2006-08-23T20:10:47Z","title":"Quantification of Continuous Variable Entanglement with only Two Types of Simple Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0608184","kind":"arxiv","version":3},"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":"sha256:81057ceb92de2c9e24278843f124130936a1bc4de5d34509f701794d069dc17e","target":"record","created_at":"2026-05-18T01:37:54Z","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":"eb31dee23686a991c18798a93a7c39fdd1d44a35b7877f5d07881e939af410e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2006-08-23T20:10:47Z","title_canon_sha256":"03658b50eb127dd7c7f7dbde514c5176fd0f3efa1b50d0aeca6baeeb4d83d245"},"schema_version":"1.0","source":{"id":"quant-ph/0608184","kind":"arxiv","version":3}},"canonical_sha256":"2540da7306c51cb58b43f1204662860112b30eafd2add74d4b0ee8dcc4193ecc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2540da7306c51cb58b43f1204662860112b30eafd2add74d4b0ee8dcc4193ecc","first_computed_at":"2026-05-18T01:37:54.327827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:54.327827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KQ2vWcd1OQpiELS9DgdQkCgSR38/kOeX2d332j31LSkk+F6CcFaxiBZZZ3HUQ8Mvzy/QCF3nS4nxEGPf3ouiDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:54.328494Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0608184","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81057ceb92de2c9e24278843f124130936a1bc4de5d34509f701794d069dc17e","sha256:db9e0968bcfc020a263ab474c61849075409be6723a45280949d1565f02f5fe0"],"state_sha256":"cc50076837c9b3c8d1371c2d76e6adac800b8ec74c1031cd820215e2e8b1a301"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IGC+QC2NchGXd0FA+0zNYnSMiBjRwehgih4c/PeVsv2iIEB+lJJn4DhvvVNIyzJBnr2qK2Z+d2/mgzS6QAAcAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T18:42:09.060274Z","bundle_sha256":"237949a751e14e73f12de8efe9967e6e5863ab0acbde523a6e299e527c764451"}}