{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:7AUQABF5WJVJEMG2BQZGAN4RM3","short_pith_number":"pith:7AUQABF5","canonical_record":{"source":{"id":"quant-ph/0008115","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-27T17:36:51Z","cross_cats_sorted":[],"title_canon_sha256":"b369fa34276c900a41c999aeefe22683437f8ad3eacee4e1c1c4a85dc2b4a55c","abstract_canon_sha256":"e5861760ebee9bedb3f2d3cbf30d0fcb6f8fc0059d622396144b194e0bdd7535"},"schema_version":"1.0"},"canonical_sha256":"f8290004bdb26a9230da0c3260379166eacaff916375ce40bfb2d214c550e05b","source":{"kind":"arxiv","id":"quant-ph/0008115","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0008115","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0008115v3","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0008115","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_12","alias_value":"7AUQABF5WJVJ","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_16","alias_value":"7AUQABF5WJVJEMG2","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_8","alias_value":"7AUQABF5","created_at":"2026-07-04T16:23:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:7AUQABF5WJVJEMG2BQZGAN4RM3","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0008115","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-27T17:36:51Z","cross_cats_sorted":[],"title_canon_sha256":"b369fa34276c900a41c999aeefe22683437f8ad3eacee4e1c1c4a85dc2b4a55c","abstract_canon_sha256":"e5861760ebee9bedb3f2d3cbf30d0fcb6f8fc0059d622396144b194e0bdd7535"},"schema_version":"1.0"},"canonical_sha256":"f8290004bdb26a9230da0c3260379166eacaff916375ce40bfb2d214c550e05b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:01.521947Z","signature_b64":"b1xWdl4hS5OWL3AQhZeBuVmHuALVBBGOXS0+WjOn5vWQdJ0j6Z3XnD4uaAqhlsw0Fs9pqLRXuw2uj3165N9ICA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8290004bdb26a9230da0c3260379166eacaff916375ce40bfb2d214c550e05b","last_reissued_at":"2026-07-04T16:23:01.521559Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:01.521559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0008115","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":"2026-07-04T16:23:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mOzr8FTw52zMN+GT9lBFzdSoGOM8au8o+eaNksRT1vptnT2kdeTr5zKNMhiQeFOuGslzmQWlORpcbzDaHpWQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:17:38.088191Z"},"content_sha256":"2f175e01c6ced912940d73762a13e253ec98ead3d4abc617e83083639adc697e","schema_version":"1.0","event_id":"sha256:2f175e01c6ced912940d73762a13e253ec98ead3d4abc617e83083639adc697e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:7AUQABF5WJVJEMG2BQZGAN4RM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of quantum entanglement","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Karol Zyczkowski, Michal Horodecki, Pawel Horodecki, Ryszard Horodecki","submitted_at":"2000-08-27T17:36:51Z","abstract_excerpt":"A model of discrete dynamics of entanglement of bipartite quantum state is considered. It involves a global unitary dynamics of the system and periodic actions of local bistochastic or decaying channel. For initially pure states the decay of entanglement is accompanied with an increase of von Neumann entropy of the system. We observe and discuss revivals of entanglement due to unitary interaction of both subsystems. For some mixed states having different marginal entropies of both subsystems (one of them larger than the global entropy and the other one one smaller) we find an asymmetry in spee"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0008115","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0008115/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:23:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TEYhljMmTk26gSIsXka+bp5/VOxB6Iib2HtVjXPvaAC5xaaXWNBpa7WIK8fKcTSV35AIJN7Z/uybOUC6rYXmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:17:38.088682Z"},"content_sha256":"75f50cfea86d3b7b5e806cca6a53fbaca921c4ab3e90ea5c472561963d73ba85","schema_version":"1.0","event_id":"sha256:75f50cfea86d3b7b5e806cca6a53fbaca921c4ab3e90ea5c472561963d73ba85"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/bundle.json","state_url":"https://pith.science/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/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":"2026-08-05T06:17:38Z","links":{"resolver":"https://pith.science/pith/7AUQABF5WJVJEMG2BQZGAN4RM3","bundle":"https://pith.science/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/bundle.json","state":"https://pith.science/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7AUQABF5WJVJEMG2BQZGAN4RM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:7AUQABF5WJVJEMG2BQZGAN4RM3","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":"e5861760ebee9bedb3f2d3cbf30d0fcb6f8fc0059d622396144b194e0bdd7535","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-27T17:36:51Z","title_canon_sha256":"b369fa34276c900a41c999aeefe22683437f8ad3eacee4e1c1c4a85dc2b4a55c"},"schema_version":"1.0","source":{"id":"quant-ph/0008115","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0008115","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0008115v3","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0008115","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_12","alias_value":"7AUQABF5WJVJ","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_16","alias_value":"7AUQABF5WJVJEMG2","created_at":"2026-07-04T16:23:01Z"},{"alias_kind":"pith_short_8","alias_value":"7AUQABF5","created_at":"2026-07-04T16:23:01Z"}],"graph_snapshots":[{"event_id":"sha256:75f50cfea86d3b7b5e806cca6a53fbaca921c4ab3e90ea5c472561963d73ba85","target":"graph","created_at":"2026-07-04T16:23:01Z","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/quant-ph/0008115/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A model of discrete dynamics of entanglement of bipartite quantum state is considered. It involves a global unitary dynamics of the system and periodic actions of local bistochastic or decaying channel. For initially pure states the decay of entanglement is accompanied with an increase of von Neumann entropy of the system. We observe and discuss revivals of entanglement due to unitary interaction of both subsystems. For some mixed states having different marginal entropies of both subsystems (one of them larger than the global entropy and the other one one smaller) we find an asymmetry in spee","authors_text":"Karol Zyczkowski, Michal Horodecki, Pawel Horodecki, Ryszard Horodecki","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2000-08-27T17:36:51Z","title":"Dynamics of quantum entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0008115","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":"sha256:2f175e01c6ced912940d73762a13e253ec98ead3d4abc617e83083639adc697e","target":"record","created_at":"2026-07-04T16:23:01Z","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":"e5861760ebee9bedb3f2d3cbf30d0fcb6f8fc0059d622396144b194e0bdd7535","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-08-27T17:36:51Z","title_canon_sha256":"b369fa34276c900a41c999aeefe22683437f8ad3eacee4e1c1c4a85dc2b4a55c"},"schema_version":"1.0","source":{"id":"quant-ph/0008115","kind":"arxiv","version":3}},"canonical_sha256":"f8290004bdb26a9230da0c3260379166eacaff916375ce40bfb2d214c550e05b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8290004bdb26a9230da0c3260379166eacaff916375ce40bfb2d214c550e05b","first_computed_at":"2026-07-04T16:23:01.521559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:23:01.521559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b1xWdl4hS5OWL3AQhZeBuVmHuALVBBGOXS0+WjOn5vWQdJ0j6Z3XnD4uaAqhlsw0Fs9pqLRXuw2uj3165N9ICA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:23:01.521947Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0008115","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f175e01c6ced912940d73762a13e253ec98ead3d4abc617e83083639adc697e","sha256:75f50cfea86d3b7b5e806cca6a53fbaca921c4ab3e90ea5c472561963d73ba85"],"state_sha256":"463567151d23795c235a3e057120c95e34b263af23968e282b51645abdb07658"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WXNEn+qy+CUO56xCru3hC4kyRPs1dcsm9il5vfD+J0VWRU7KcBXpnKehSF70r9ZSsn6Op0bvphcXbl4hOu8EDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:17:38.093722Z","bundle_sha256":"28b80574293a8464dda6e8be6147d2bc2956d005af129995aa4a8100a78db7a2"}}