{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:WET7LBICS4VTBUYPYVDWHYATOS","short_pith_number":"pith:WET7LBIC","canonical_record":{"source":{"id":"1205.6601","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-30T09:38:14Z","cross_cats_sorted":[],"title_canon_sha256":"d9e54f394d4fa80a63ae10de245147969adcf526b611f9c14f25454290e48a61","abstract_canon_sha256":"06f22badccfbcff7c4a41d090e58e406b2e74effd3c480ce5e32b71c85543a56"},"schema_version":"1.0"},"canonical_sha256":"b127f58502972b30d30fc54763e0137499e154f04f1024bd0eb7b7046b6c6ba1","source":{"kind":"arxiv","id":"1205.6601","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6601","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6601v1","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6601","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"pith_short_12","alias_value":"WET7LBICS4VT","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WET7LBICS4VTBUYP","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WET7LBIC","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:WET7LBICS4VTBUYPYVDWHYATOS","target":"record","payload":{"canonical_record":{"source":{"id":"1205.6601","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-30T09:38:14Z","cross_cats_sorted":[],"title_canon_sha256":"d9e54f394d4fa80a63ae10de245147969adcf526b611f9c14f25454290e48a61","abstract_canon_sha256":"06f22badccfbcff7c4a41d090e58e406b2e74effd3c480ce5e32b71c85543a56"},"schema_version":"1.0"},"canonical_sha256":"b127f58502972b30d30fc54763e0137499e154f04f1024bd0eb7b7046b6c6ba1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:45:55.198892Z","signature_b64":"XMuc4rp2AqS9qM1We4fpYDf1fObHtv1NMxcVQy6JAs4RR07PHoLqueQRccQzm9x+L+ptIe58jgLytaljbFg0CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b127f58502972b30d30fc54763e0137499e154f04f1024bd0eb7b7046b6c6ba1","last_reissued_at":"2026-05-18T03:45:55.198371Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:45:55.198371Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.6601","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":"2026-05-18T03:45:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WegyhbNgwKADweRmu0xBBwZU7Id2F92pyQBlpH607eE73w93m+WWKUauxENbyfso2s45sNxUQy1IVpdN3RBUAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:24:13.835959Z"},"content_sha256":"ccf120c7867e4c34fe8eac64e538b9363da82751f84645cada3c0057d3f75c77","schema_version":"1.0","event_id":"sha256:ccf120c7867e4c34fe8eac64e538b9363da82751f84645cada3c0057d3f75c77"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:WET7LBICS4VTBUYPYVDWHYATOS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Defeating entanglement sudden death by a single local filtering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ali A. Kamli, Michael Siomau","submitted_at":"2012-05-30T09:38:14Z","abstract_excerpt":"Genuine multipartite entanglement of a quantum system can be partially destroyed by local decoherence. Is it possible to retrieve the entanglement to some extent by a single local operation? The answer to this question depends very much on the type of initial genuine entanglement. For initially pure W and cluster states and if the decoherence is given by generalized amplitude damping, the answer is shown to be positive. In this case, the entanglement retrieving is achieved just by redistributing the remained entanglement of the system."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6601","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":"2026-05-18T03:45:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JmOpnRgyYDq7QHmRZIjjkg5kMMLAUWnLukpmpRcccJ0YvVaS36KmJgVeOyUXcQ1qmcB+7Oi0TShSpegF3bQ9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:24:13.836360Z"},"content_sha256":"465a8e9e6c2376a9fe6a2da3f9331693c61dc791bcafb0284d569fe825caafe3","schema_version":"1.0","event_id":"sha256:465a8e9e6c2376a9fe6a2da3f9331693c61dc791bcafb0284d569fe825caafe3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WET7LBICS4VTBUYPYVDWHYATOS/bundle.json","state_url":"https://pith.science/pith/WET7LBICS4VTBUYPYVDWHYATOS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WET7LBICS4VTBUYPYVDWHYATOS/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":"2026-05-27T20:24:13Z","links":{"resolver":"https://pith.science/pith/WET7LBICS4VTBUYPYVDWHYATOS","bundle":"https://pith.science/pith/WET7LBICS4VTBUYPYVDWHYATOS/bundle.json","state":"https://pith.science/pith/WET7LBICS4VTBUYPYVDWHYATOS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WET7LBICS4VTBUYPYVDWHYATOS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WET7LBICS4VTBUYPYVDWHYATOS","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":"06f22badccfbcff7c4a41d090e58e406b2e74effd3c480ce5e32b71c85543a56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-30T09:38:14Z","title_canon_sha256":"d9e54f394d4fa80a63ae10de245147969adcf526b611f9c14f25454290e48a61"},"schema_version":"1.0","source":{"id":"1205.6601","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6601","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6601v1","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6601","created_at":"2026-05-18T03:45:55Z"},{"alias_kind":"pith_short_12","alias_value":"WET7LBICS4VT","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WET7LBICS4VTBUYP","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WET7LBIC","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:465a8e9e6c2376a9fe6a2da3f9331693c61dc791bcafb0284d569fe825caafe3","target":"graph","created_at":"2026-05-18T03:45:55Z","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":"Genuine multipartite entanglement of a quantum system can be partially destroyed by local decoherence. Is it possible to retrieve the entanglement to some extent by a single local operation? The answer to this question depends very much on the type of initial genuine entanglement. For initially pure W and cluster states and if the decoherence is given by generalized amplitude damping, the answer is shown to be positive. In this case, the entanglement retrieving is achieved just by redistributing the remained entanglement of the system.","authors_text":"Ali A. Kamli, Michael Siomau","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-30T09:38:14Z","title":"Defeating entanglement sudden death by a single local filtering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6601","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:ccf120c7867e4c34fe8eac64e538b9363da82751f84645cada3c0057d3f75c77","target":"record","created_at":"2026-05-18T03:45:55Z","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":"06f22badccfbcff7c4a41d090e58e406b2e74effd3c480ce5e32b71c85543a56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-30T09:38:14Z","title_canon_sha256":"d9e54f394d4fa80a63ae10de245147969adcf526b611f9c14f25454290e48a61"},"schema_version":"1.0","source":{"id":"1205.6601","kind":"arxiv","version":1}},"canonical_sha256":"b127f58502972b30d30fc54763e0137499e154f04f1024bd0eb7b7046b6c6ba1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b127f58502972b30d30fc54763e0137499e154f04f1024bd0eb7b7046b6c6ba1","first_computed_at":"2026-05-18T03:45:55.198371Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:45:55.198371Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XMuc4rp2AqS9qM1We4fpYDf1fObHtv1NMxcVQy6JAs4RR07PHoLqueQRccQzm9x+L+ptIe58jgLytaljbFg0CA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:45:55.198892Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.6601","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ccf120c7867e4c34fe8eac64e538b9363da82751f84645cada3c0057d3f75c77","sha256:465a8e9e6c2376a9fe6a2da3f9331693c61dc791bcafb0284d569fe825caafe3"],"state_sha256":"25cbd5dc7bcf6b0824a282a0f47b8f75f2176d57bda0336aedb22ceecd8fe81a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UEwL+MKSPM2zTn2kBjhnILlS2hV2Wk9tF+WCka6I/wpX4PwwWbGOVIHcOc85YPvNLKw02DpHhui6AXXKVkSSBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:24:13.838936Z","bundle_sha256":"3d425ba2f3989f79123f6ec07a29917465651ae4a6e255c3b3dcdc254ca28a3e"}}