{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:T7PCMJLIG7OA43LU3O7EZHOOTW","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":"53f3dca0073ef861529e257ff6d69d1ed05375c149c7759366b407aecaee439a","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2005-04-25T01:21:42Z","title_canon_sha256":"0e2f7795941c89ad52a78465ced60ae5014142843491549a8fd88ed114461df3"},"schema_version":"1.0","source":{"id":"hep-th/0504194","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/0504194","created_at":"2026-07-04T14:48:09Z"},{"alias_kind":"arxiv_version","alias_value":"hep-th/0504194v1","created_at":"2026-07-04T14:48:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/0504194","created_at":"2026-07-04T14:48:09Z"},{"alias_kind":"pith_short_12","alias_value":"T7PCMJLIG7OA","created_at":"2026-07-04T14:48:09Z"},{"alias_kind":"pith_short_16","alias_value":"T7PCMJLIG7OA43LU","created_at":"2026-07-04T14:48:09Z"},{"alias_kind":"pith_short_8","alias_value":"T7PCMJLI","created_at":"2026-07-04T14:48:09Z"}],"graph_snapshots":[{"event_id":"sha256:54b0870ac0a76d2895f7f6cc94b4abf6330ac2dbfa62c9199e6d918acf8f268e","target":"graph","created_at":"2026-07-04T14:48:09Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/hep-th/0504194/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, Witten proposed a topological string theory in twistor space that is dual to a weakly coupled gauge theory. In this lectures we will discuss aspects of the twistor string theory. Along the way we will learn new things about Yang-Mills scattering amplitudes. The string theory sheds light on Yang-Mills perturbation theory and leads to new methods for computing Yang-Mills scattering amplitudes.","authors_text":"Freddy Cachazo, Peter Svrcek","cross_cats":[],"headline":"","license":"","primary_cat":"hep-th","submitted_at":"2005-04-25T01:21:42Z","title":"Lectures on Twistor Strings and Perturbative Yang-Mills Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/0504194","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":"sha256:4285b7dded921e886a27f2e099898d6ed12dfe79a50534e1b446873b1a99b84e","target":"record","created_at":"2026-07-04T14:48:09Z","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":"53f3dca0073ef861529e257ff6d69d1ed05375c149c7759366b407aecaee439a","cross_cats_sorted":[],"license":"","primary_cat":"hep-th","submitted_at":"2005-04-25T01:21:42Z","title_canon_sha256":"0e2f7795941c89ad52a78465ced60ae5014142843491549a8fd88ed114461df3"},"schema_version":"1.0","source":{"id":"hep-th/0504194","kind":"arxiv","version":1}},"canonical_sha256":"9fde26256837dc0e6d74dbbe4c9dce9d94f1b3c341a627ddc7d99f7651d4ef99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fde26256837dc0e6d74dbbe4c9dce9d94f1b3c341a627ddc7d99f7651d4ef99","first_computed_at":"2026-07-04T14:48:09.032742Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:48:09.032742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q5eI5nPPz5DhnzNFiaw9aFn5+cgltm1yCua7sxT5vTESBmlkKRV8wVeGJOcYnJLaRnkETCJ0VMBeZQQxupKdAg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:48:09.033095Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-th/0504194","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4285b7dded921e886a27f2e099898d6ed12dfe79a50534e1b446873b1a99b84e","sha256:54b0870ac0a76d2895f7f6cc94b4abf6330ac2dbfa62c9199e6d918acf8f268e"],"state_sha256":"4c4a1d8f3370dd9225b6f98327180956a80c0a82db16966519b7d88b19d3b735"}