{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MCUGOXUIQ6AM23KD7GR64TGNBY","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":"090ae137840071952da63ed281ee816cff36418a58bd7c7381be52623e2b6b03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-01-22T04:26:07Z","title_canon_sha256":"e0431795b41980837f1fdfd5c287b3f3caec6b8779dbbb2e6cf3e1e1e3f70d03"},"schema_version":"1.0","source":{"id":"2501.12629","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.12629","created_at":"2026-07-05T10:03:55Z"},{"alias_kind":"arxiv_version","alias_value":"2501.12629v1","created_at":"2026-07-05T10:03:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.12629","created_at":"2026-07-05T10:03:55Z"},{"alias_kind":"pith_short_12","alias_value":"MCUGOXUIQ6AM","created_at":"2026-07-05T10:03:55Z"},{"alias_kind":"pith_short_16","alias_value":"MCUGOXUIQ6AM23KD","created_at":"2026-07-05T10:03:55Z"},{"alias_kind":"pith_short_8","alias_value":"MCUGOXUI","created_at":"2026-07-05T10:03:55Z"}],"graph_snapshots":[{"event_id":"sha256:412462ae22f90b5c6b13dc22c3a61161655e606374ed3afb47192f1a20ab9fdd","target":"graph","created_at":"2026-07-05T10:03:55Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2501.12629/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the entanglement dynamics of a family of quantum collision models by analytically solving the pairwise concurrence for all qubit pairs. We introduce a diagrammatic method that offers an intuitive, frame-by-frame understanding of these dynamics. This allows us to monitor how a single collision affects the entanglement of the whole many-body system in some special cases. We focus on a class of models where the square of concurrence is a conserved quantity in the qubit collisions, aiding us to formulate general rules of entanglement propagation. In particular, among the multiple examples","authors_text":"Andrew N. Jordan, Le Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-01-22T04:26:07Z","title":"Entanglement dynamics in collision models and entanglement quilts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.12629","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":"sha256:85766c8557a53f968fbcf537603fefd65e5a60eeb6867da5c81047c09b9d8301","target":"record","created_at":"2026-07-05T10:03:55Z","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":"090ae137840071952da63ed281ee816cff36418a58bd7c7381be52623e2b6b03","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-01-22T04:26:07Z","title_canon_sha256":"e0431795b41980837f1fdfd5c287b3f3caec6b8779dbbb2e6cf3e1e1e3f70d03"},"schema_version":"1.0","source":{"id":"2501.12629","kind":"arxiv","version":1}},"canonical_sha256":"60a8675e888780cd6d43f9a3ee4ccd0e11e781db80b8e582e7d970716973c0c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60a8675e888780cd6d43f9a3ee4ccd0e11e781db80b8e582e7d970716973c0c0","first_computed_at":"2026-07-05T10:03:55.971761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:03:55.971761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mxq1dg3fmQQXqvH7lXdhl+RVDESbR7ufBh40JZ7ErO0AhOPNGMYAFXQ4sNY2u/vrmmV9PMDTGzL0+3TC5Ma7BA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:03:55.972256Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.12629","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85766c8557a53f968fbcf537603fefd65e5a60eeb6867da5c81047c09b9d8301","sha256:412462ae22f90b5c6b13dc22c3a61161655e606374ed3afb47192f1a20ab9fdd"],"state_sha256":"ffd5b779766deddb6d291b30290ff66cc0f478e73370651c4814e034fc473ff7"}