{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:L5XYY6B4TDEVR3UYHIOIQD5HCN","short_pith_number":"pith:L5XYY6B4","canonical_record":{"source":{"id":"0805.3088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-05-20T14:26:04Z","cross_cats_sorted":[],"title_canon_sha256":"7ccdf8195bd1f7dc3348f62da7c553bd1830c59f2bfb768c040c813a15bd13e3","abstract_canon_sha256":"642985a5db2f3cf651013659fa2209518e0692a268e1e99ac0e39ced9df3bc8f"},"schema_version":"1.0"},"canonical_sha256":"5f6f8c783c98c958ee983a1c880fa71353d50fd3136e354e6328f801e872b48e","source":{"kind":"arxiv","id":"0805.3088","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3088","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3088v1","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3088","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"pith_short_12","alias_value":"L5XYY6B4TDEV","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"L5XYY6B4TDEVR3UY","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"L5XYY6B4","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:L5XYY6B4TDEVR3UYHIOIQD5HCN","target":"record","payload":{"canonical_record":{"source":{"id":"0805.3088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-05-20T14:26:04Z","cross_cats_sorted":[],"title_canon_sha256":"7ccdf8195bd1f7dc3348f62da7c553bd1830c59f2bfb768c040c813a15bd13e3","abstract_canon_sha256":"642985a5db2f3cf651013659fa2209518e0692a268e1e99ac0e39ced9df3bc8f"},"schema_version":"1.0"},"canonical_sha256":"5f6f8c783c98c958ee983a1c880fa71353d50fd3136e354e6328f801e872b48e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:10.983183Z","signature_b64":"ooZIg8yZ48LTlfd8NjnIHshIAeEiJGt+FhHEK0kN1TCqCjk0XiIqHzfu75bsFSHch5HbLoCxFTbIxCuKre9bAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f6f8c783c98c958ee983a1c880fa71353d50fd3136e354e6328f801e872b48e","last_reissued_at":"2026-05-18T03:48:10.982382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:10.982382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0805.3088","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":"2026-05-18T03:48:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L7CXMd304EtBAfxZbwO0hnRZk6W/pPV0xhFhTydIJ6fdkbDCGVTPZ7wIU3/gRHm1ukJMQB5fxsCBbKIKV25eDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:25:54.856859Z"},"content_sha256":"46082d3eb4c36a521288a87ca15c421a1c38a34f6e4f94b3681b62b5f507e26b","schema_version":"1.0","event_id":"sha256:46082d3eb4c36a521288a87ca15c421a1c38a34f6e4f94b3681b62b5f507e26b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:L5XYY6B4TDEVR3UYHIOIQD5HCN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mixed state localizable entanglement for continuous variables","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jarom\\'ir Fiur\\'a\\v{s}ek, Jr., Ladislav Mi\\v{s}ta","submitted_at":"2008-05-20T14:26:04Z","abstract_excerpt":"We investigate localization of entanglement of multipartite mixed Gaussian states into a pair of modes by local Gaussian measurements on the remaining modes and classical communication. We provide a detailed proof that for arbitrary symmetric Gaussian state maximum entanglement can be localized by homodyne detection of either amplitude or phase quadrature on each mode. We then consider arbitrary mixed three-mode Gaussian states and show that the optimal Gaussian measurement on one mode yielding maximum entanglement among the other two modes can be determined by calculating roots of a high-orde"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3088","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":"2026-05-18T03:48:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w/KrKUHooH1qNgffRlYgHNYo7ai1gYbGRGk5fhLcpFL/2SuhoxRsNTtRNJPtDGE+Cx+KEX9U2mclF/CsePqOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:25:54.857216Z"},"content_sha256":"b0353e8e6b661928385e4f12dfebce6fc075be204a831e10cb02eaf8886bbbda","schema_version":"1.0","event_id":"sha256:b0353e8e6b661928385e4f12dfebce6fc075be204a831e10cb02eaf8886bbbda"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/bundle.json","state_url":"https://pith.science/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/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":"2026-05-30T02:25:54Z","links":{"resolver":"https://pith.science/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN","bundle":"https://pith.science/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/bundle.json","state":"https://pith.science/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L5XYY6B4TDEVR3UYHIOIQD5HCN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:L5XYY6B4TDEVR3UYHIOIQD5HCN","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":"642985a5db2f3cf651013659fa2209518e0692a268e1e99ac0e39ced9df3bc8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-05-20T14:26:04Z","title_canon_sha256":"7ccdf8195bd1f7dc3348f62da7c553bd1830c59f2bfb768c040c813a15bd13e3"},"schema_version":"1.0","source":{"id":"0805.3088","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3088","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3088v1","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3088","created_at":"2026-05-18T03:48:10Z"},{"alias_kind":"pith_short_12","alias_value":"L5XYY6B4TDEV","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"L5XYY6B4TDEVR3UY","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"L5XYY6B4","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:b0353e8e6b661928385e4f12dfebce6fc075be204a831e10cb02eaf8886bbbda","target":"graph","created_at":"2026-05-18T03:48:10Z","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 investigate localization of entanglement of multipartite mixed Gaussian states into a pair of modes by local Gaussian measurements on the remaining modes and classical communication. We provide a detailed proof that for arbitrary symmetric Gaussian state maximum entanglement can be localized by homodyne detection of either amplitude or phase quadrature on each mode. We then consider arbitrary mixed three-mode Gaussian states and show that the optimal Gaussian measurement on one mode yielding maximum entanglement among the other two modes can be determined by calculating roots of a high-orde","authors_text":"Jarom\\'ir Fiur\\'a\\v{s}ek, Jr., Ladislav Mi\\v{s}ta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-05-20T14:26:04Z","title":"Mixed state localizable entanglement for continuous variables"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3088","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":"sha256:46082d3eb4c36a521288a87ca15c421a1c38a34f6e4f94b3681b62b5f507e26b","target":"record","created_at":"2026-05-18T03:48:10Z","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":"642985a5db2f3cf651013659fa2209518e0692a268e1e99ac0e39ced9df3bc8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-05-20T14:26:04Z","title_canon_sha256":"7ccdf8195bd1f7dc3348f62da7c553bd1830c59f2bfb768c040c813a15bd13e3"},"schema_version":"1.0","source":{"id":"0805.3088","kind":"arxiv","version":1}},"canonical_sha256":"5f6f8c783c98c958ee983a1c880fa71353d50fd3136e354e6328f801e872b48e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f6f8c783c98c958ee983a1c880fa71353d50fd3136e354e6328f801e872b48e","first_computed_at":"2026-05-18T03:48:10.982382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:10.982382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ooZIg8yZ48LTlfd8NjnIHshIAeEiJGt+FhHEK0kN1TCqCjk0XiIqHzfu75bsFSHch5HbLoCxFTbIxCuKre9bAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:10.983183Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.3088","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46082d3eb4c36a521288a87ca15c421a1c38a34f6e4f94b3681b62b5f507e26b","sha256:b0353e8e6b661928385e4f12dfebce6fc075be204a831e10cb02eaf8886bbbda"],"state_sha256":"72e0bd81fb239e7c7bde627bd357975aee75e9f78af668bd783c97a3ab1dd446"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lMSzwHxdEjpefV5xi92oyi3rrDZhggVaj56eSHVm5YhCRsrGiBLtxUl/b7OoPB8JD2fEv/Pt5TcfLQG9D+vlBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:25:54.859336Z","bundle_sha256":"5d893d3c0818cf0cba7f37a93475c4359459fd00c85364781396848881e8d330"}}