{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:K5VAPIKNB5E6UI35JFXBV5Z25N","short_pith_number":"pith:K5VAPIKN","canonical_record":{"source":{"id":"quant-ph/0512173","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2005-12-21T09:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"d951592a7143a70e1f2558b36f0f171f07d00b19d7cca55a29a4b57cd1b26ed8","abstract_canon_sha256":"76bd8f4761a2eb00192c2687388e49d4034da6f2be4f97b4c29414a9a8a5a579"},"schema_version":"1.0"},"canonical_sha256":"576a07a14d0f49ea237d496e1af73aeb7fc70fb54087c40d86808ac5009b4e80","source":{"kind":"arxiv","id":"quant-ph/0512173","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0512173","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0512173v3","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0512173","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"pith_short_12","alias_value":"K5VAPIKNB5E6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"K5VAPIKNB5E6UI35","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"K5VAPIKN","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:K5VAPIKNB5E6UI35JFXBV5Z25N","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0512173","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2005-12-21T09:42:49Z","cross_cats_sorted":[],"title_canon_sha256":"d951592a7143a70e1f2558b36f0f171f07d00b19d7cca55a29a4b57cd1b26ed8","abstract_canon_sha256":"76bd8f4761a2eb00192c2687388e49d4034da6f2be4f97b4c29414a9a8a5a579"},"schema_version":"1.0"},"canonical_sha256":"576a07a14d0f49ea237d496e1af73aeb7fc70fb54087c40d86808ac5009b4e80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:08:52.317144Z","signature_b64":"/tmo9DmJOwBhq7VlaLgJahZPRyYEhObqndK8j+oPlQKGcNLfPUUhonhqzd0aTYHOnEpkrQ9rNpd9qooFnrBaCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"576a07a14d0f49ea237d496e1af73aeb7fc70fb54087c40d86808ac5009b4e80","last_reissued_at":"2026-05-18T04:08:52.316571Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:08:52.316571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0512173","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":"2026-05-18T04:08:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WSIFE/AmvIbgGYz1+vJg/LcLsPYuB/DNSdSwFxsm7f1XehwbCHdQdJqJPToqfqt7hU/K7GVPRvmHYcXqlT+RBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T21:53:24.717937Z"},"content_sha256":"b22abed0c9e535a577ec93cbb9da30ab8b6c27a885dcc665666ca68290fd61f3","schema_version":"1.0","event_id":"sha256:b22abed0c9e535a577ec93cbb9da30ab8b6c27a885dcc665666ca68290fd61f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:K5VAPIKNB5E6UI35JFXBV5Z25N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Entanglement purification for high dimensional multipartite systems","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Hai-Woong Lee, Jinhyoung Lee, Seung-Woo Lee, Yong Wook Cheong","submitted_at":"2005-12-21T09:42:49Z","abstract_excerpt":"We propose an entanglement purification protocol for high-dimensional multipartite systems. In the protocol we can select a subensemble in a pure generalized Greenberger-Horne-Zeilinger (GHZ) state. This post-selection can be made by detecting the noise which contaminated the initial pure ensemble when the systems past through a noisy environment. For the detection of noise we investigate correlation properties of GHZ states and analyze their possible errors due to a noisy environment. We show that the presented protocol is more efficient than a simple generalization of the purification protoc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0512173","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":"2026-05-18T04:08:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aKQT/UW/E0IENqcb7FWojMk1xQtT0PrD4xlgpNvWSZcLBAEjsnaPyO89TIhfZQpCzEJTlgr5Rim3yrJDmO1XDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T21:53:24.718504Z"},"content_sha256":"c298c6223a270ab09924f90704b42842b2911acec47faa4ef585d308ab1ff21b","schema_version":"1.0","event_id":"sha256:c298c6223a270ab09924f90704b42842b2911acec47faa4ef585d308ab1ff21b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/bundle.json","state_url":"https://pith.science/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/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":"2026-05-24T21:53:24Z","links":{"resolver":"https://pith.science/pith/K5VAPIKNB5E6UI35JFXBV5Z25N","bundle":"https://pith.science/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/bundle.json","state":"https://pith.science/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K5VAPIKNB5E6UI35JFXBV5Z25N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:K5VAPIKNB5E6UI35JFXBV5Z25N","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":"76bd8f4761a2eb00192c2687388e49d4034da6f2be4f97b4c29414a9a8a5a579","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2005-12-21T09:42:49Z","title_canon_sha256":"d951592a7143a70e1f2558b36f0f171f07d00b19d7cca55a29a4b57cd1b26ed8"},"schema_version":"1.0","source":{"id":"quant-ph/0512173","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0512173","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0512173v3","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0512173","created_at":"2026-05-18T04:08:52Z"},{"alias_kind":"pith_short_12","alias_value":"K5VAPIKNB5E6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"K5VAPIKNB5E6UI35","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"K5VAPIKN","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:c298c6223a270ab09924f90704b42842b2911acec47faa4ef585d308ab1ff21b","target":"graph","created_at":"2026-05-18T04:08:52Z","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 propose an entanglement purification protocol for high-dimensional multipartite systems. In the protocol we can select a subensemble in a pure generalized Greenberger-Horne-Zeilinger (GHZ) state. This post-selection can be made by detecting the noise which contaminated the initial pure ensemble when the systems past through a noisy environment. For the detection of noise we investigate correlation properties of GHZ states and analyze their possible errors due to a noisy environment. We show that the presented protocol is more efficient than a simple generalization of the purification protoc","authors_text":"Hai-Woong Lee, Jinhyoung Lee, Seung-Woo Lee, Yong Wook Cheong","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2005-12-21T09:42:49Z","title":"Entanglement purification for high dimensional multipartite systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0512173","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:b22abed0c9e535a577ec93cbb9da30ab8b6c27a885dcc665666ca68290fd61f3","target":"record","created_at":"2026-05-18T04:08:52Z","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":"76bd8f4761a2eb00192c2687388e49d4034da6f2be4f97b4c29414a9a8a5a579","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2005-12-21T09:42:49Z","title_canon_sha256":"d951592a7143a70e1f2558b36f0f171f07d00b19d7cca55a29a4b57cd1b26ed8"},"schema_version":"1.0","source":{"id":"quant-ph/0512173","kind":"arxiv","version":3}},"canonical_sha256":"576a07a14d0f49ea237d496e1af73aeb7fc70fb54087c40d86808ac5009b4e80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"576a07a14d0f49ea237d496e1af73aeb7fc70fb54087c40d86808ac5009b4e80","first_computed_at":"2026-05-18T04:08:52.316571Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:52.316571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/tmo9DmJOwBhq7VlaLgJahZPRyYEhObqndK8j+oPlQKGcNLfPUUhonhqzd0aTYHOnEpkrQ9rNpd9qooFnrBaCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:52.317144Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0512173","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b22abed0c9e535a577ec93cbb9da30ab8b6c27a885dcc665666ca68290fd61f3","sha256:c298c6223a270ab09924f90704b42842b2911acec47faa4ef585d308ab1ff21b"],"state_sha256":"a94835524dc3e599ce768f2a699ac73313eaac1b8bdbcf87e3a77ae7e9d975d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kB1dcgWOlVAFxj3BVx4ZFOND3+RpfIy8ItAWgF9PFs143dzh1p3CR4rLo3MxNtfy4PpP0I5dQLAGWfYrh7hXAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T21:53:24.721758Z","bundle_sha256":"0921b8fe6c9d528e68c98a253e34bfd34f27990678bb23f7d4cd8c70e082bc8e"}}