{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:EH3JEUWDW5MZVDOWRB3R5NSFCK","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":"b642aa56e3bb7978fa499606823caedbfbabe00fcbbccb98820156f665eadd91","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-14T09:33:08Z","title_canon_sha256":"c882de7382b9e3de6da39c83594aa0767edf3dea44e6a28fc4798425d1f6b87c"},"schema_version":"1.0","source":{"id":"hep-ex/9909023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9909023","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9909023v1","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9909023","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"EH3JEUWDW5MZ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"EH3JEUWDW5MZVDOW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"EH3JEUWD","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:03ba51602863e6271c846156175e448dc53bc01a6f937ec4330b2d9df08aa342","target":"graph","created_at":"2026-05-18T01:06:43Z","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":"This review covers selected results from the LEP experiments on the structure of quasi-real and virtual photons.\n The topics discussed are the total hadronic cross-section for photon-photon scattering, hadron production, jet cross-sections, heavy quark production for photon-photon scattering, photon structure functions, and cross-sections for the exchange of two virtual photons.","authors_text":"Richard Nisius","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"1999-09-14T09:33:08Z","title":"Experimental Results on Two-Photon Physics from LEP"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9909023","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:df8644c6ae0fb186123896a4cb3a935cb69929b6c091f90c01e6849971aed844","target":"record","created_at":"2026-05-18T01:06:43Z","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":"b642aa56e3bb7978fa499606823caedbfbabe00fcbbccb98820156f665eadd91","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-14T09:33:08Z","title_canon_sha256":"c882de7382b9e3de6da39c83594aa0767edf3dea44e6a28fc4798425d1f6b87c"},"schema_version":"1.0","source":{"id":"hep-ex/9909023","kind":"arxiv","version":1}},"canonical_sha256":"21f69252c3b7599a8dd688771eb645129f6045396a8250c9107c7f1b2c613bd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21f69252c3b7599a8dd688771eb645129f6045396a8250c9107c7f1b2c613bd1","first_computed_at":"2026-05-18T01:06:43.173916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:43.173916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IqxcnF5vQh6cqDn4VEPLiebEU3BQnCMjIj7VF1jcbqJDtHJxgOhPEuBkEkhwCE/QxfxVaXlqSWlpxGqBcqwpBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:43.174340Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/9909023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df8644c6ae0fb186123896a4cb3a935cb69929b6c091f90c01e6849971aed844","sha256:03ba51602863e6271c846156175e448dc53bc01a6f937ec4330b2d9df08aa342"],"state_sha256":"86fabaa60dc7780e1a5e5ac76f18a61775ec5704b03e7465bf2b7b23e6d85fae"}