{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OBNQQ7ZBGR2APP5KUU3TZF74ET","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":"c024bffcd7139fe13546957c66d4aa5a2ba083e6afabca871a8ffa32b912910e","cross_cats_sorted":["hep-ex","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2024-01-12T19:00:33Z","title_canon_sha256":"2c54df14b4f5ce76810a8db38d12f93dd8fa22e3bb5fe8344323c2e40c021094"},"schema_version":"1.0","source":{"id":"2401.06854","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.06854","created_at":"2026-07-05T09:06:02Z"},{"alias_kind":"arxiv_version","alias_value":"2401.06854v2","created_at":"2026-07-05T09:06:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.06854","created_at":"2026-07-05T09:06:02Z"},{"alias_kind":"pith_short_12","alias_value":"OBNQQ7ZBGR2A","created_at":"2026-07-05T09:06:02Z"},{"alias_kind":"pith_short_16","alias_value":"OBNQQ7ZBGR2APP5K","created_at":"2026-07-05T09:06:02Z"},{"alias_kind":"pith_short_8","alias_value":"OBNQQ7ZB","created_at":"2026-07-05T09:06:02Z"}],"graph_snapshots":[{"event_id":"sha256:f993d805e74a4d5022f137313ced17b7704233c081e3371cf93e7c49c8860c5b","target":"graph","created_at":"2026-07-05T09:06:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2401.06854/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Particle decays do not constitute a spin ``measurement'' in the quantum-mechanical sense, but still modify the spin state, in particular for an entangled system. We show that for a spin-entangled pair of particles the entanglement of the system can increase after the decay of one particle. This unique phenomenon has no equivalent for stable particles and could be observable in top pair production at a high-energy polarized $e^+ e^-$ collider.","authors_text":"J. A. Aguilar-Saavedra, J. A. Casas","cross_cats":["hep-ex","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2024-01-12T19:00:33Z","title":"Entanglement autodistillation from particle decays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.06854","kind":"arxiv","version":2},"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":"sha256:4e41efdeedd90bc4ef3593abae904668db5a1abcc15a659b61f7e3b58cbb698d","target":"record","created_at":"2026-07-05T09:06:02Z","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":"c024bffcd7139fe13546957c66d4aa5a2ba083e6afabca871a8ffa32b912910e","cross_cats_sorted":["hep-ex","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2024-01-12T19:00:33Z","title_canon_sha256":"2c54df14b4f5ce76810a8db38d12f93dd8fa22e3bb5fe8344323c2e40c021094"},"schema_version":"1.0","source":{"id":"2401.06854","kind":"arxiv","version":2}},"canonical_sha256":"705b087f21347407bfaaa5373c97fc24cfe3fc711b670ff0bc9368e7164ee945","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"705b087f21347407bfaaa5373c97fc24cfe3fc711b670ff0bc9368e7164ee945","first_computed_at":"2026-07-05T09:06:02.549835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:06:02.549835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bQG90gUWtnCJONo6pKFtUnFRcJ5BPgM2j4+qEW3rf4r8kstSFIH126CZmWKzv48jU4LGkw8oorvsIBhKbrTxDA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:06:02.550279Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.06854","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4e41efdeedd90bc4ef3593abae904668db5a1abcc15a659b61f7e3b58cbb698d","sha256:f993d805e74a4d5022f137313ced17b7704233c081e3371cf93e7c49c8860c5b"],"state_sha256":"7166baf522060bdae69a8e79d9d0a0a2b1e610e4d0fadbf0178ea9a6b3c6d5c9"}