{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DKTILCMC3O4YHEO5W7IWB6W6ZP","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":"a496cdd68c0bee070399ec36c817df7234e3ec101d04bfc0573d573ea9aa9613","cross_cats_sorted":["gr-qc","hep-ph","math-ph","math.MP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2020-12-04T09:15:48Z","title_canon_sha256":"5f5ea666ef635c0d8291269f695a797166b3b68d97a56a5fd8d9fd72819cc733"},"schema_version":"1.0","source":{"id":"2012.02479","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.02479","created_at":"2026-07-05T02:15:37Z"},{"alias_kind":"arxiv_version","alias_value":"2012.02479v1","created_at":"2026-07-05T02:15:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.02479","created_at":"2026-07-05T02:15:37Z"},{"alias_kind":"pith_short_12","alias_value":"DKTILCMC3O4Y","created_at":"2026-07-05T02:15:37Z"},{"alias_kind":"pith_short_16","alias_value":"DKTILCMC3O4YHEO5","created_at":"2026-07-05T02:15:37Z"},{"alias_kind":"pith_short_8","alias_value":"DKTILCMC","created_at":"2026-07-05T02:15:37Z"}],"graph_snapshots":[{"event_id":"sha256:5e77c54cb654e925d91620b2357ac0f119cd859b570555ddd75e96aff8b0898e","target":"graph","created_at":"2026-07-05T02:15:37Z","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/2012.02479/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The classical double copy relates exact solutions of gauge, gravity and other theories. Although widely studied, its origins and domain of applicability have remained mysterious. In this letter, we show that a particular incarnation - the Weyl double copy - can be derived using well-established ideas from twistor theory. As well as explaining where the Weyl double copy comes from, the twistor formalism also shows that it is more general than previously thought.","authors_text":"Chris D. White","cross_cats":["gr-qc","hep-ph","math-ph","math.MP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2020-12-04T09:15:48Z","title":"A Twistorial Foundation for the Classical Double Copy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.02479","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":"sha256:6f794e48a5a6a239228a467eac2cbbf51d61605b8d4a85dc9b2ddce587e561b3","target":"record","created_at":"2026-07-05T02:15:37Z","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":"a496cdd68c0bee070399ec36c817df7234e3ec101d04bfc0573d573ea9aa9613","cross_cats_sorted":["gr-qc","hep-ph","math-ph","math.MP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2020-12-04T09:15:48Z","title_canon_sha256":"5f5ea666ef635c0d8291269f695a797166b3b68d97a56a5fd8d9fd72819cc733"},"schema_version":"1.0","source":{"id":"2012.02479","kind":"arxiv","version":1}},"canonical_sha256":"1aa6858982dbb98391ddb7d160fadecbdb1550bafc08a67594a5288a62cd1788","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1aa6858982dbb98391ddb7d160fadecbdb1550bafc08a67594a5288a62cd1788","first_computed_at":"2026-07-05T02:15:37.324228Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:15:37.324228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J9wvxn7FD0vBf9N7b2JKPHAGogPKibn0xl7+u7wHmhnNWblTFhBHz4Rq5b+/vzcZeHz1wlOlb1ANjuJl+uU0AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:15:37.324669Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.02479","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f794e48a5a6a239228a467eac2cbbf51d61605b8d4a85dc9b2ddce587e561b3","sha256:5e77c54cb654e925d91620b2357ac0f119cd859b570555ddd75e96aff8b0898e"],"state_sha256":"f1b59535c8e2656fff94c6630da9a66dbab92e7d3a3612099979ddfbb47822fa"}