{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:BW4HP7ZFQCTLETPHPJRU4N2MIW","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":"be8cbb6c0e6b540230dcc7256514c4ba5205bf1bff6896a914a6e7a8696fe3c1","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2003-12-17T16:08:40Z","title_canon_sha256":"4ec8aa93a38b9d4fd728a7b1d6adda05908f85013da2bc48f4957e658c691488"},"schema_version":"1.0","source":{"id":"hep-ex/0312048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0312048","created_at":"2026-05-18T03:47:31Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0312048v1","created_at":"2026-05-18T03:47:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0312048","created_at":"2026-05-18T03:47:31Z"},{"alias_kind":"pith_short_12","alias_value":"BW4HP7ZFQCTL","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"BW4HP7ZFQCTLETPH","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"BW4HP7ZF","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:67e42d6b9735a973c95ff38d28b0ac8cd420e80cf8b94721b63cd13f0eb88897","target":"graph","created_at":"2026-05-18T03:47:31Z","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":"A search for QCD-instanton-induced events in deep inelastic ep scattering has been performed with the ZEUS detector at the HERA collider, using data corresponding to an integrated luminosity of 38 pb^{-1}. A kinematic range defined by cuts on the photon virtuality, Q^2 > 120 GeV^2, and on the Bjorken scaling variable, x > 10^{-3}, has been investigated. The QCD-instanton induced events were modelled by the Monte Carlo generator QCDINS. A background-independent, conservative 95% confidence level upper limit for the instanton cross section of 26 pb is obtained, to be compared with the theoretica","authors_text":"ZEUS Collaboration","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2003-12-17T16:08:40Z","title":"Search for QCD-instanton induced events in deep inelastic ep scattering at HERA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0312048","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":"sha256:2bab196729550c1f0222d8c383ef828057716d3aab4ce9c84ee188178db67ec2","target":"record","created_at":"2026-05-18T03:47:31Z","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":"be8cbb6c0e6b540230dcc7256514c4ba5205bf1bff6896a914a6e7a8696fe3c1","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2003-12-17T16:08:40Z","title_canon_sha256":"4ec8aa93a38b9d4fd728a7b1d6adda05908f85013da2bc48f4957e658c691488"},"schema_version":"1.0","source":{"id":"hep-ex/0312048","kind":"arxiv","version":1}},"canonical_sha256":"0db877ff2580a6b24de77a634e374c458ac77b1c1d621cd220c6d1b4bf705106","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0db877ff2580a6b24de77a634e374c458ac77b1c1d621cd220c6d1b4bf705106","first_computed_at":"2026-05-18T03:47:31.529576Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:31.529576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pu5yYh5HsnBpJU4eKZZMu4pqF030sFgtVoVkxsesGe+ZIabxByGq0TwpG+aHI1CXTC9DQx6L6QQHum6Oe055DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:31.530156Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0312048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2bab196729550c1f0222d8c383ef828057716d3aab4ce9c84ee188178db67ec2","sha256:67e42d6b9735a973c95ff38d28b0ac8cd420e80cf8b94721b63cd13f0eb88897"],"state_sha256":"649c8df8cf68ffd9a21e88226954352e479c98f7c7364df8e5245bae700289b5"}