{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:7BGPP4OY5MJWECYQBJQC2646JX","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":"1dd0f06b5cfe41c44022447aceaf34060cfbfc4ae4122b2222e88d1ed0435ea2","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-08-31T18:00:01Z","title_canon_sha256":"9358812df49ccaf0b4c4d65a30058ab5e25affd57fdb4d4e239a97674bd39930"},"schema_version":"1.0","source":{"id":"2009.00008","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.00008","created_at":"2026-07-05T02:10:06Z"},{"alias_kind":"arxiv_version","alias_value":"2009.00008v3","created_at":"2026-07-05T02:10:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.00008","created_at":"2026-07-05T02:10:06Z"},{"alias_kind":"pith_short_12","alias_value":"7BGPP4OY5MJW","created_at":"2026-07-05T02:10:06Z"},{"alias_kind":"pith_short_16","alias_value":"7BGPP4OY5MJWECYQ","created_at":"2026-07-05T02:10:06Z"},{"alias_kind":"pith_short_8","alias_value":"7BGPP4OY","created_at":"2026-07-05T02:10:06Z"}],"graph_snapshots":[{"event_id":"sha256:50793426fa7fece9c2b09243c4b9e60b1eab5f8d87e85a915de1cf93d9f1b6fb","target":"graph","created_at":"2026-07-05T02:10:06Z","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/2009.00008/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the existence of double copy structure, or the lack thereof, in higher derivative operators for Nambu-Goldstone bosons. At the leading ${\\cal O}(p^2)$, tree amplitudes of Nambu-Goldstone bosons in the adjoint representation can be (trivially) expressed as the double copy of itself and the cubic bi-adjoint scalar theory, through the Kawai-Lewellen-Tye bilinear kernel. At the next-to-leading ${\\cal O}(p^4)$ there exist four operators in general, among which we identify one operator whose amplitudes exhibit the flavor-kinematics duality and can be written as the double copy of ${\\c","authors_text":"Ian Low, Laurentiu Rodina, Zhewei Yin","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-08-31T18:00:01Z","title":"Double Copy in Higher Derivative Operators of Nambu-Goldstone Bosons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.00008","kind":"arxiv","version":3},"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:f697f51ac8518dfb83fa941cf9225d4655fbb5e5a172b8e31938d2bb6cb45c03","target":"record","created_at":"2026-07-05T02:10:06Z","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":"1dd0f06b5cfe41c44022447aceaf34060cfbfc4ae4122b2222e88d1ed0435ea2","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-08-31T18:00:01Z","title_canon_sha256":"9358812df49ccaf0b4c4d65a30058ab5e25affd57fdb4d4e239a97674bd39930"},"schema_version":"1.0","source":{"id":"2009.00008","kind":"arxiv","version":3}},"canonical_sha256":"f84cf7f1d8eb13620b100a602d7b9e4dc0b98667b2b3435af362579b596e390c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f84cf7f1d8eb13620b100a602d7b9e4dc0b98667b2b3435af362579b596e390c","first_computed_at":"2026-07-05T02:10:06.791622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:10:06.791622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hH7cVPyU6jhpOa0miUGmo7wnoqEEaOEeDk0atts/aWPUqSC7s4qt57gSKpPTIIcle94ga+TNJGrZ46f++B3rBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:10:06.792084Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.00008","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f697f51ac8518dfb83fa941cf9225d4655fbb5e5a172b8e31938d2bb6cb45c03","sha256:50793426fa7fece9c2b09243c4b9e60b1eab5f8d87e85a915de1cf93d9f1b6fb"],"state_sha256":"c49d4e66abd40fa5532929e7de0bd062300fda0beb8c951190c7796a52443d8e"}