{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PYOJTSANEUVM2SUSPLMFOGE2G5","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":"71a9f17a73dfbaca3aa3cca81cce5b86804c0ad19cc67e17dee2e84f75063147","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-20T22:20:05Z","title_canon_sha256":"b40e08795cc36572d18cda311440ee2da8a1ee53d4c1858b5c0e2e3a97eb6790"},"schema_version":"1.0","source":{"id":"1105.4186","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4186","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4186v2","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4186","created_at":"2026-05-18T04:11:51Z"},{"alias_kind":"pith_short_12","alias_value":"PYOJTSANEUVM","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PYOJTSANEUVM2SUS","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PYOJTSAN","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:6be1fceb0ffea24c7e4506b3900f482916ad22ad43bd6e2a3ead7c1e0a47a489","target":"graph","created_at":"2026-05-18T04:11:51Z","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 argue that the recent LHCb observation of J/psi-pair production indicates a significant contribution from double parton scattering, in addition to the standard single parton scattering component. We propose a method to measure the double parton scattering at LHCb using leptonic final states from the decay of two prompt J/psi mesons.","authors_text":"A. Kulesza, C. H. Kom, W. J. Stirling","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-20T22:20:05Z","title":"Pair production of J/psi as a probe of double parton scattering at LHCb"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4186","kind":"arxiv","version":2},"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":"sha256:530a008986fe0ee5fed67af6e94ec35180764b0d577f95fbe6dbb978e4bb37b4","target":"record","created_at":"2026-05-18T04:11:51Z","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":"71a9f17a73dfbaca3aa3cca81cce5b86804c0ad19cc67e17dee2e84f75063147","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-05-20T22:20:05Z","title_canon_sha256":"b40e08795cc36572d18cda311440ee2da8a1ee53d4c1858b5c0e2e3a97eb6790"},"schema_version":"1.0","source":{"id":"1105.4186","kind":"arxiv","version":2}},"canonical_sha256":"7e1c99c80d252acd4a927ad857189a377f79c8e98affa3ea347436dfc00ce7f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e1c99c80d252acd4a927ad857189a377f79c8e98affa3ea347436dfc00ce7f3","first_computed_at":"2026-05-18T04:11:51.449864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:51.449864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IGtduMijkeDQa2R01CKcclzwspKJw1haHLUxasuf4sLOi6UtJRAoqdlg0rzDnVUF1lxKBSOkgXADcOM0QqrXDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:51.450488Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.4186","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:530a008986fe0ee5fed67af6e94ec35180764b0d577f95fbe6dbb978e4bb37b4","sha256:6be1fceb0ffea24c7e4506b3900f482916ad22ad43bd6e2a3ead7c1e0a47a489"],"state_sha256":"a1a7bbd35ef42a7d33d99aece575e2f5e0f238ed33475cf38ecaf016c9840501"}