{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:3WT2IRHYVHAEAVXMKXUAAUQ4OY","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":"8ec95c8d6a0f34fdbb54dd24ad5cec06a0734970790245b16aa20687f860ce46","cross_cats_sorted":["hep-ex","hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-27T19:41:29Z","title_canon_sha256":"b45338f9d985b5c15cdfceb3dbb8a57b16165f06cfc8d7ed0f9238ea7038df3c"},"schema_version":"1.0","source":{"id":"2607.25029","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.25029","created_at":"2026-07-29T00:24:58Z"},{"alias_kind":"arxiv_version","alias_value":"2607.25029v1","created_at":"2026-07-29T00:24:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.25029","created_at":"2026-07-29T00:24:58Z"},{"alias_kind":"pith_short_12","alias_value":"3WT2IRHYVHAE","created_at":"2026-07-29T00:24:58Z"},{"alias_kind":"pith_short_16","alias_value":"3WT2IRHYVHAEAVXM","created_at":"2026-07-29T00:24:58Z"},{"alias_kind":"pith_short_8","alias_value":"3WT2IRHY","created_at":"2026-07-29T00:24:58Z"}],"graph_snapshots":[{"event_id":"sha256:ba1a39dc1a70b8e4029dbfbc5dc8274cccc966a02dde37f58ea82c9a8e569102","target":"graph","created_at":"2026-07-29T00:24:58Z","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/2607.25029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate how possible new CP-violating top-quark interactions are encoded in the quantum state of a produced $t\\bar t$ pair. We derive analytic expressions for the production density matrix in several benchmark channels relevant to hadron, lepton and photon colliders. In a common spin basis, we identify two characteristic CP-odd structures in the Fano--Bloch decomposition: a difference between the top and antitop polarisation vectors and an antisymmetric component of the spin-correlation matrix. We construct observables that directly probe these structures and study how quantum informati","authors_text":"Eleni Vryonidou, Fabio Maltoni, Olimpia Miniati, Priyanka Lamba","cross_cats":["hep-ex","hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-27T19:41:29Z","title":"Quantum detection of CP violation in the $t\\bar{t}$ system: production"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.25029","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:ea5c112593f67ec016ff420850d9cf09fb7a4f77f9bb928de3d58ea8c97e9175","target":"record","created_at":"2026-07-29T00:24:58Z","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":"8ec95c8d6a0f34fdbb54dd24ad5cec06a0734970790245b16aa20687f860ce46","cross_cats_sorted":["hep-ex","hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2026-07-27T19:41:29Z","title_canon_sha256":"b45338f9d985b5c15cdfceb3dbb8a57b16165f06cfc8d7ed0f9238ea7038df3c"},"schema_version":"1.0","source":{"id":"2607.25029","kind":"arxiv","version":1}},"canonical_sha256":"dda7a444f8a9c04056ec55e800521c7606674ed4c097fdc82fdbe0a87229984b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dda7a444f8a9c04056ec55e800521c7606674ed4c097fdc82fdbe0a87229984b","first_computed_at":"2026-07-29T00:24:58.402355Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-29T00:24:58.402355Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j3RKBOmXqzbld0/AhacPr5PuOBp0RZKqWLep3NHNQMfFukEV5m1HnZ4xhJa9HhiDmuiRdUbDtQRvft6FbusLCw==","signature_status":"signed_v1","signed_at":"2026-07-29T00:24:58.403166Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.25029","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea5c112593f67ec016ff420850d9cf09fb7a4f77f9bb928de3d58ea8c97e9175","sha256:ba1a39dc1a70b8e4029dbfbc5dc8274cccc966a02dde37f58ea82c9a8e569102"],"state_sha256":"9e11a717bc50241f349238174e5b26888c239f58e21d3de23bebd0229e8dcfcc"}