{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:CN7D2PVTDIPBN4U62GELAKVDOF","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":"9fb66b0171985843672e4b35d176cae4c921721014594771e2a00a9f3c90de9c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-03-09T20:44:06Z","title_canon_sha256":"97f812b6f79a77571eccc1cc901fbf0dd2b9dd6279c91c3b202bfdb34e110ecd"},"schema_version":"1.0","source":{"id":"1103.1871","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1871","created_at":"2026-05-18T04:17:02Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1871v1","created_at":"2026-05-18T04:17:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1871","created_at":"2026-05-18T04:17:02Z"},{"alias_kind":"pith_short_12","alias_value":"CN7D2PVTDIPB","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CN7D2PVTDIPBN4U6","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CN7D2PVT","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:34e22ee14fc9142af1a1a38be93454cdeed3771762dec19a62b223ae363cc361","target":"graph","created_at":"2026-05-18T04:17:02Z","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"},"paper":{"abstract_excerpt":"We measure the correlation between the spin of the top quark and the spin of the anti-top quark in (ttbar -> W+ W- b bbar -> l+ nu b l- nubar bbar) final states produced in ppbar collisions at a center of mass energy sqrt(s)=1.96 TeV, where l is an electron or muon. The data correspond to an integrated luminosity of 5.4 fb-1 and were collected with the D0 detector at the Fermilab Tevatron collider. The correlation is extracted from the angles of the two leptons in the t and tbar rest frames, yielding a correlation strength C= 0.10^{+0.45}_{-0.45}, in agreement with the NLO QCD prediction withi","authors_text":"D0 Collaboration, V. Abazov et al.","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-03-09T20:44:06Z","title":"Measurement of spin correlation in ttbar production using dilepton final states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1871","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":"sha256:8297dc548b825ca2fce0eabd6f880f2ee7d8f6a656988ea7ebbdcb7eb32a64a8","target":"record","created_at":"2026-05-18T04:17:02Z","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":"9fb66b0171985843672e4b35d176cae4c921721014594771e2a00a9f3c90de9c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-03-09T20:44:06Z","title_canon_sha256":"97f812b6f79a77571eccc1cc901fbf0dd2b9dd6279c91c3b202bfdb34e110ecd"},"schema_version":"1.0","source":{"id":"1103.1871","kind":"arxiv","version":1}},"canonical_sha256":"137e3d3eb31a1e16f29ed188b02aa37157285cd3e9731a8560eaf0cd0c9795d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"137e3d3eb31a1e16f29ed188b02aa37157285cd3e9731a8560eaf0cd0c9795d5","first_computed_at":"2026-05-18T04:17:02.643236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:17:02.643236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aQGoVoYYZL4sJUXRwWAk4/tL5hkRPwyeoKsp04UAr7dw85b9x9L8E/oLAMKWUAmVG6HEed0SUPxnqyJMZ4JdDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:17:02.644105Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.1871","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8297dc548b825ca2fce0eabd6f880f2ee7d8f6a656988ea7ebbdcb7eb32a64a8","sha256:34e22ee14fc9142af1a1a38be93454cdeed3771762dec19a62b223ae363cc361"],"state_sha256":"db3d44c9079d5066fabd762e84e76c557f04541dd5f94e271ac23ee1fdfb3ca9"}