{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:SRZANPJLBSRATRXH54ZWNQWX74","short_pith_number":"pith:SRZANPJL","canonical_record":{"source":{"id":"2605.01233","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-05-02T04:10:09Z","cross_cats_sorted":["hep-ph","quant-ph"],"title_canon_sha256":"14632bb6083edfb9913b8d09fca01c07c71659327337ed5e4e97635f7ead340f","abstract_canon_sha256":"a236802955009b31c0084c813e550ac39e458637c07959db92bf2b9a8f5d1611"},"schema_version":"1.0"},"canonical_sha256":"947206bd2b0ca209c6e7ef3366c2d7ff0ee957bab28591dfd2d8f1eac104a307","source":{"kind":"arxiv","id":"2605.01233","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.01233","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"2605.01233v2","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.01233","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"SRZANPJLBSRA","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_16","alias_value":"SRZANPJLBSRATRXH","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_8","alias_value":"SRZANPJL","created_at":"2026-06-03T01:05:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:SRZANPJLBSRATRXH54ZWNQWX74","target":"record","payload":{"canonical_record":{"source":{"id":"2605.01233","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-05-02T04:10:09Z","cross_cats_sorted":["hep-ph","quant-ph"],"title_canon_sha256":"14632bb6083edfb9913b8d09fca01c07c71659327337ed5e4e97635f7ead340f","abstract_canon_sha256":"a236802955009b31c0084c813e550ac39e458637c07959db92bf2b9a8f5d1611"},"schema_version":"1.0"},"canonical_sha256":"947206bd2b0ca209c6e7ef3366c2d7ff0ee957bab28591dfd2d8f1eac104a307","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T01:05:14.295441Z","signature_b64":"VfbDi2Bd5iRVldmWYl4rBJfNVaNmoJwRNlok0bbKpYqv21puZ9JipHNAeTtIFI0i8I7wulLwYqOErOIJrzVmAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"947206bd2b0ca209c6e7ef3366c2d7ff0ee957bab28591dfd2d8f1eac104a307","last_reissued_at":"2026-06-03T01:05:14.294966Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T01:05:14.294966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.01233","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-03T01:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DPhfDu1TcMDFfuMWpoUnW77Wt3OIqJVSs29xNe0zfgbfrNASEdV5l3cVd+B5IFR6lhb/8neoR1VxkJj77jm7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:55:36.605140Z"},"content_sha256":"ca834b86974cfcec168f45760e22ea0c2170b9e81680d4a5ff4e014a7ecdc9c0","schema_version":"1.0","event_id":"sha256:ca834b86974cfcec168f45760e22ea0c2170b9e81680d4a5ff4e014a7ecdc9c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:SRZANPJLBSRATRXH54ZWNQWX74","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Quantum Entanglement in $\\tau^+\\tau^-$ Pairs via the $\\pi\\pi$ Channel at STCF","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel.","cross_cats":["hep-ph","quant-ph"],"primary_cat":"hep-ex","authors_text":"Chentao Bao, Dayong Wang, Hai Chen, Mingyi Liu, Xiaokang Li","submitted_at":"2026-05-02T04:10:09Z","abstract_excerpt":"Quantum entanglement and Bell-inequality violation in $\\tau^+\\tau^-$ pairs provide a sensitive probe of quantum correlations in high-energy interactions. We present a feasibility study of $e^+e^- \\to \\tau^+\\tau^-$ at the proposed Super Tau-Charm Facility based on full Monte Carlo simulation at $\\sqrt{s} = 7$ GeV, focusing on the $\\pi\\pi$ channel ($\\tau^\\pm \\to \\pi^\\pm\\nu$), which offers the maximal spin-analyzing power $|\\kappa| = 1$ and the simplest final-state topology for validating the quantum-tomography framework. We establish a consistency chain from the tree-level QED prediction through"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We establish a consistency chain from the tree-level QED prediction through truth-level and detector-level reconstruction, yielding a reconstructed concurrence of 0.279 ± 0.007 with the good-solution approach.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The Monte Carlo simulation and the good-solution reconstruction method accurately capture detector effects and spin correlations without introducing bias or post-hoc adjustments that would invalidate the reported concurrence value.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Monte Carlo simulation at the proposed STCF reconstructs a concurrence of 0.279 ± 0.007 for tau+ tau- pairs in the pi pi channel, showing feasibility for quantum entanglement studies.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"14b27e117cb71b2291151cf828896f119bb29f35a252b4319c4652c1735973af"},"source":{"id":"2605.01233","kind":"arxiv","version":2},"verdict":{"id":"824f79b9-78dc-4571-a591-3d4730048df7","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T15:10:05.717553Z","strongest_claim":"We establish a consistency chain from the tree-level QED prediction through truth-level and detector-level reconstruction, yielding a reconstructed concurrence of 0.279 ± 0.007 with the good-solution approach.","one_line_summary":"Monte Carlo simulation at the proposed STCF reconstructs a concurrence of 0.279 ± 0.007 for tau+ tau- pairs in the pi pi channel, showing feasibility for quantum entanglement studies.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The Monte Carlo simulation and the good-solution reconstruction method accurately capture detector effects and spin correlations without introducing bias or post-hoc adjustments that would invalidate the reported concurrence value.","pith_extraction_headline":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.01233/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-20T18:36:30.066822Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T17:28:55.793545Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"b7ddcadaa1d3c5ca9fd91be92b00ae5463fead24100baad4ca0e57ffdff8f216"},"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":"824f79b9-78dc-4571-a591-3d4730048df7"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-03T01:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q7WcIN4cGtVimvvyu2uP5Y+Dm7ND5QrBKu2ANPrFvBWD05oqLQSAeeQcw8Wm9MwiscXxC1XSiZBPfhgseLQFBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:55:36.606022Z"},"content_sha256":"c60d1da8946b859c3cf83d8675efd6bf0db9e7e12c32312caf7c9161f3e7af0e","schema_version":"1.0","event_id":"sha256:c60d1da8946b859c3cf83d8675efd6bf0db9e7e12c32312caf7c9161f3e7af0e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SRZANPJLBSRATRXH54ZWNQWX74/bundle.json","state_url":"https://pith.science/pith/SRZANPJLBSRATRXH54ZWNQWX74/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SRZANPJLBSRATRXH54ZWNQWX74/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":"2026-06-11T22:55:36Z","links":{"resolver":"https://pith.science/pith/SRZANPJLBSRATRXH54ZWNQWX74","bundle":"https://pith.science/pith/SRZANPJLBSRATRXH54ZWNQWX74/bundle.json","state":"https://pith.science/pith/SRZANPJLBSRATRXH54ZWNQWX74/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SRZANPJLBSRATRXH54ZWNQWX74/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SRZANPJLBSRATRXH54ZWNQWX74","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":"a236802955009b31c0084c813e550ac39e458637c07959db92bf2b9a8f5d1611","cross_cats_sorted":["hep-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-05-02T04:10:09Z","title_canon_sha256":"14632bb6083edfb9913b8d09fca01c07c71659327337ed5e4e97635f7ead340f"},"schema_version":"1.0","source":{"id":"2605.01233","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.01233","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"2605.01233v2","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.01233","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"SRZANPJLBSRA","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_16","alias_value":"SRZANPJLBSRATRXH","created_at":"2026-06-03T01:05:14Z"},{"alias_kind":"pith_short_8","alias_value":"SRZANPJL","created_at":"2026-06-03T01:05:14Z"}],"graph_snapshots":[{"event_id":"sha256:c60d1da8946b859c3cf83d8675efd6bf0db9e7e12c32312caf7c9161f3e7af0e","target":"graph","created_at":"2026-06-03T01:05:14Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"We establish a consistency chain from the tree-level QED prediction through truth-level and detector-level reconstruction, yielding a reconstructed concurrence of 0.279 ± 0.007 with the good-solution approach."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The Monte Carlo simulation and the good-solution reconstruction method accurately capture detector effects and spin correlations without introducing bias or post-hoc adjustments that would invalidate the reported concurrence value."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Monte Carlo simulation at the proposed STCF reconstructs a concurrence of 0.279 ± 0.007 for tau+ tau- pairs in the pi pi channel, showing feasibility for quantum entanglement studies."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel."}],"snapshot_sha256":"14b27e117cb71b2291151cf828896f119bb29f35a252b4319c4652c1735973af"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-20T18:36:30.066822Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"doi_compliance","ran_at":"2026-05-19T17:28:55.793545Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.01233/integrity.json","findings":[],"snapshot_sha256":"b7ddcadaa1d3c5ca9fd91be92b00ae5463fead24100baad4ca0e57ffdff8f216","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum entanglement and Bell-inequality violation in $\\tau^+\\tau^-$ pairs provide a sensitive probe of quantum correlations in high-energy interactions. We present a feasibility study of $e^+e^- \\to \\tau^+\\tau^-$ at the proposed Super Tau-Charm Facility based on full Monte Carlo simulation at $\\sqrt{s} = 7$ GeV, focusing on the $\\pi\\pi$ channel ($\\tau^\\pm \\to \\pi^\\pm\\nu$), which offers the maximal spin-analyzing power $|\\kappa| = 1$ and the simplest final-state topology for validating the quantum-tomography framework. We establish a consistency chain from the tree-level QED prediction through","authors_text":"Chentao Bao, Dayong Wang, Hai Chen, Mingyi Liu, Xiaokang Li","cross_cats":["hep-ph","quant-ph"],"headline":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel.","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-05-02T04:10:09Z","title":"Probing Quantum Entanglement in $\\tau^+\\tau^-$ Pairs via the $\\pi\\pi$ Channel at STCF"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.01233","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-10T15:10:05.717553Z","id":"824f79b9-78dc-4571-a591-3d4730048df7","model_set":{"reader":"grok-4.3"},"one_line_summary":"Monte Carlo simulation at the proposed STCF reconstructs a concurrence of 0.279 ± 0.007 for tau+ tau- pairs in the pi pi channel, showing feasibility for quantum entanglement studies.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"A Monte Carlo study at the proposed STCF reconstructs concurrence of 0.279 in entangled tau pairs via the pi pi channel.","strongest_claim":"We establish a consistency chain from the tree-level QED prediction through truth-level and detector-level reconstruction, yielding a reconstructed concurrence of 0.279 ± 0.007 with the good-solution approach.","weakest_assumption":"The Monte Carlo simulation and the good-solution reconstruction method accurately capture detector effects and spin correlations without introducing bias or post-hoc adjustments that would invalidate the reported concurrence value."}},"verdict_id":"824f79b9-78dc-4571-a591-3d4730048df7"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ca834b86974cfcec168f45760e22ea0c2170b9e81680d4a5ff4e014a7ecdc9c0","target":"record","created_at":"2026-06-03T01:05:14Z","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":"a236802955009b31c0084c813e550ac39e458637c07959db92bf2b9a8f5d1611","cross_cats_sorted":["hep-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2026-05-02T04:10:09Z","title_canon_sha256":"14632bb6083edfb9913b8d09fca01c07c71659327337ed5e4e97635f7ead340f"},"schema_version":"1.0","source":{"id":"2605.01233","kind":"arxiv","version":2}},"canonical_sha256":"947206bd2b0ca209c6e7ef3366c2d7ff0ee957bab28591dfd2d8f1eac104a307","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"947206bd2b0ca209c6e7ef3366c2d7ff0ee957bab28591dfd2d8f1eac104a307","first_computed_at":"2026-06-03T01:05:14.294966Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:05:14.294966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VfbDi2Bd5iRVldmWYl4rBJfNVaNmoJwRNlok0bbKpYqv21puZ9JipHNAeTtIFI0i8I7wulLwYqOErOIJrzVmAg==","signature_status":"signed_v1","signed_at":"2026-06-03T01:05:14.295441Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.01233","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca834b86974cfcec168f45760e22ea0c2170b9e81680d4a5ff4e014a7ecdc9c0","sha256:c60d1da8946b859c3cf83d8675efd6bf0db9e7e12c32312caf7c9161f3e7af0e"],"state_sha256":"4d6b7fe83c318863f40ba692b7c89a351d0e4cd1494adbdf6a655d034f83923c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wIjjZaLw9IGFB6SSffxLzm/GwoCgrHh2g/r3254FExRydPTWtLIItXYDn3wt98hRagLdyu7Jc/8vr/gJW+S4Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T22:55:36.610258Z","bundle_sha256":"6f65f1523affdd6c044358f871534e3703c1ad6577314779b3269a61ba8f0072"}}