{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:R4RFS6UKRCFLPNG4EQ5PSEQVJB","short_pith_number":"pith:R4RFS6UK","canonical_record":{"source":{"id":"1201.5620","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-26T19:59:39Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"9956d79134a9c45cfecd4a31292a524a1e78380473d813a79efcc177150b4e29","abstract_canon_sha256":"ce327486d02f2ae06a5e2210561e9e8c2c183e3b186d05c92c5e36d11ca5b5a7"},"schema_version":"1.0"},"canonical_sha256":"8f22597a8a888ab7b4dc243af9121548777ebcf2d6d86ede3a24c50450cb980f","source":{"kind":"arxiv","id":"1201.5620","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.5620","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"1201.5620v5","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.5620","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"R4RFS6UKRCFL","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R4RFS6UKRCFLPNG4","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R4RFS6UK","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:R4RFS6UKRCFLPNG4EQ5PSEQVJB","target":"record","payload":{"canonical_record":{"source":{"id":"1201.5620","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-26T19:59:39Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"9956d79134a9c45cfecd4a31292a524a1e78380473d813a79efcc177150b4e29","abstract_canon_sha256":"ce327486d02f2ae06a5e2210561e9e8c2c183e3b186d05c92c5e36d11ca5b5a7"},"schema_version":"1.0"},"canonical_sha256":"8f22597a8a888ab7b4dc243af9121548777ebcf2d6d86ede3a24c50450cb980f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:40:36.566452Z","signature_b64":"gkvXIboJx5Msuk4cRrONZfFj1TTLWNLSA67Enp33yhXeScSrZp9cBhyQcyWGBpw/zva7/ACsY7ISVR/d+AdbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f22597a8a888ab7b4dc243af9121548777ebcf2d6d86ede3a24c50450cb980f","last_reissued_at":"2026-05-18T03:40:36.565672Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:40:36.565672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.5620","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FevpUx7V0JRPg/v9eeJRydMI5aGCa23JsmcT4+BQfV6ZrzgxdePXNAeLHSKOD38dVaxVYa5PpRk4vkbbK15uBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T20:07:24.688457Z"},"content_sha256":"358db288bd280e46e3d2c0f3730ccaee14c74f87e236f6928349acb4d26b34c4","schema_version":"1.0","event_id":"sha256:358db288bd280e46e3d2c0f3730ccaee14c74f87e236f6928349acb4d26b34c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:R4RFS6UKRCFLPNG4EQ5PSEQVJB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement Localization and Optimal Measurement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"quant-ph","authors_text":"Shaon Sahoo","submitted_at":"2012-01-26T19:59:39Z","abstract_excerpt":"The entanglement can be localized between two noncomplementary parts of a many-body system by performing measurements on the rest of the system. This localized entanglement (LE) depends on the chosen basis set of measurement (BSM). We derive here a generic optimality condition for the LE, which, besides being helpful in studying tripartite systems in pure states, can also be of use in studying mixed states of general bipartite systems. We further discuss a canonical way of localizing entanglement, where the BSM is not chosen arbitrarily, but is fully determined by the properties of the system."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.5620","kind":"arxiv","version":5},"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":"2026-05-18T03:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pkpof5N2Ls0zy5sfl925vgcjt3GKiH9ATXWmIE+ytMhkeFAv3o+wt9+HyT53TnjU3ik0e57CVjKBaLHles2+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T20:07:24.689143Z"},"content_sha256":"7d6b804406e6f54b9281f6660f91290b18b263afb0a39591114e3c70a8d435ab","schema_version":"1.0","event_id":"sha256:7d6b804406e6f54b9281f6660f91290b18b263afb0a39591114e3c70a8d435ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/bundle.json","state_url":"https://pith.science/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/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":"2026-05-18T20:07:24Z","links":{"resolver":"https://pith.science/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB","bundle":"https://pith.science/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/bundle.json","state":"https://pith.science/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R4RFS6UKRCFLPNG4EQ5PSEQVJB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:R4RFS6UKRCFLPNG4EQ5PSEQVJB","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":"ce327486d02f2ae06a5e2210561e9e8c2c183e3b186d05c92c5e36d11ca5b5a7","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-26T19:59:39Z","title_canon_sha256":"9956d79134a9c45cfecd4a31292a524a1e78380473d813a79efcc177150b4e29"},"schema_version":"1.0","source":{"id":"1201.5620","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.5620","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"1201.5620v5","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.5620","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"R4RFS6UKRCFL","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R4RFS6UKRCFLPNG4","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R4RFS6UK","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:7d6b804406e6f54b9281f6660f91290b18b263afb0a39591114e3c70a8d435ab","target":"graph","created_at":"2026-05-18T03:40:36Z","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":"The entanglement can be localized between two noncomplementary parts of a many-body system by performing measurements on the rest of the system. This localized entanglement (LE) depends on the chosen basis set of measurement (BSM). We derive here a generic optimality condition for the LE, which, besides being helpful in studying tripartite systems in pure states, can also be of use in studying mixed states of general bipartite systems. We further discuss a canonical way of localizing entanglement, where the BSM is not chosen arbitrarily, but is fully determined by the properties of the system.","authors_text":"Shaon Sahoo","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-26T19:59:39Z","title":"Entanglement Localization and Optimal Measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.5620","kind":"arxiv","version":5},"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":"sha256:358db288bd280e46e3d2c0f3730ccaee14c74f87e236f6928349acb4d26b34c4","target":"record","created_at":"2026-05-18T03:40:36Z","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":"ce327486d02f2ae06a5e2210561e9e8c2c183e3b186d05c92c5e36d11ca5b5a7","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-26T19:59:39Z","title_canon_sha256":"9956d79134a9c45cfecd4a31292a524a1e78380473d813a79efcc177150b4e29"},"schema_version":"1.0","source":{"id":"1201.5620","kind":"arxiv","version":5}},"canonical_sha256":"8f22597a8a888ab7b4dc243af9121548777ebcf2d6d86ede3a24c50450cb980f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f22597a8a888ab7b4dc243af9121548777ebcf2d6d86ede3a24c50450cb980f","first_computed_at":"2026-05-18T03:40:36.565672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:40:36.565672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gkvXIboJx5Msuk4cRrONZfFj1TTLWNLSA67Enp33yhXeScSrZp9cBhyQcyWGBpw/zva7/ACsY7ISVR/d+AdbAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:40:36.566452Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.5620","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:358db288bd280e46e3d2c0f3730ccaee14c74f87e236f6928349acb4d26b34c4","sha256:7d6b804406e6f54b9281f6660f91290b18b263afb0a39591114e3c70a8d435ab"],"state_sha256":"8b32cb6524144b552911358e4ffe32bc9dd079f39ab6482fe67188a0adb92853"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OHYuEG+J3vej3+lQCuWriJa99L5S3OcBXJfuHm9kju9aMP8azWpD9Fa7ueBm3ON5qYCDp9GSyUzpupxZp2gXBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T20:07:24.690975Z","bundle_sha256":"0cbb3fdb5bcbcd6637b15580eceea12fa10207a5486fc0deac5c945fd7d47d4d"}}