{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QAVET4VTDRMCZCAP72DQFOSEES","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":"000f11dccd5f2f977cf0923a66358b109f284cc81874cfa8dd12582dab8448cb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2021-05-26T21:52:25Z","title_canon_sha256":"1526a160b5bcd3bc955b7b81ca82f7311e9df83fde198adca2c1dc8dce3f8dc0"},"schema_version":"1.0","source":{"id":"2105.12857","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.12857","created_at":"2026-07-05T03:32:04Z"},{"alias_kind":"arxiv_version","alias_value":"2105.12857v1","created_at":"2026-07-05T03:32:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.12857","created_at":"2026-07-05T03:32:04Z"},{"alias_kind":"pith_short_12","alias_value":"QAVET4VTDRMC","created_at":"2026-07-05T03:32:04Z"},{"alias_kind":"pith_short_16","alias_value":"QAVET4VTDRMCZCAP","created_at":"2026-07-05T03:32:04Z"},{"alias_kind":"pith_short_8","alias_value":"QAVET4VT","created_at":"2026-07-05T03:32:04Z"}],"graph_snapshots":[{"event_id":"sha256:a73c0c76b5c586f0067847204f162fdbb2d0b7ccb9163f73f42b4afeebc9f3ae","target":"graph","created_at":"2026-07-05T03:32:04Z","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/2105.12857/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the classical double copy for ungauged half-maximal supergravities using the Kaluza-Klein reduction of double field theory (DFT). We construct a general formula for the Kaluza-Klein (KK) reduction of the DFT Kerr-Schild ansatz. The KK reduction of the ansatz is highly nonlinear, but the associated equations of motion are linear. This linear structure implies that half-maximal supergravities admit a classical double copy. We show that their single copy is given by a pair of Maxwell-scalar theories, which are the KK reduction of a higher-dimensional single copy of DFT. We also investiga","authors_text":"Kanghoon Lee, Kyoungho Cho, Stephen Angus","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2021-05-26T21:52:25Z","title":"The Classical Double Copy for Half-Maximal Supergravities and T-duality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.12857","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:f1d52718282b69523e82e1268e73c4f1623fd92aee0416238e182d0fdeef52a6","target":"record","created_at":"2026-07-05T03:32:04Z","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":"000f11dccd5f2f977cf0923a66358b109f284cc81874cfa8dd12582dab8448cb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2021-05-26T21:52:25Z","title_canon_sha256":"1526a160b5bcd3bc955b7b81ca82f7311e9df83fde198adca2c1dc8dce3f8dc0"},"schema_version":"1.0","source":{"id":"2105.12857","kind":"arxiv","version":1}},"canonical_sha256":"802a49f2b31c582c880ffe8702ba4424812f1c5f7c66bb256c80fe1f4b1e4eaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"802a49f2b31c582c880ffe8702ba4424812f1c5f7c66bb256c80fe1f4b1e4eaf","first_computed_at":"2026-07-05T03:32:04.229308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:32:04.229308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ufjKXvhddf8SL+cy7y4HOjYBsAB0OHixk034pGnHEnoZSwAzUofuCPigG9YB6T11buJjVjoSuUgT5vJgaUCiDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:32:04.229793Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.12857","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1d52718282b69523e82e1268e73c4f1623fd92aee0416238e182d0fdeef52a6","sha256:a73c0c76b5c586f0067847204f162fdbb2d0b7ccb9163f73f42b4afeebc9f3ae"],"state_sha256":"4f1e21e4b80093537dca54f9d75c9c440bb0f41928955b2b88dd6c4f21fc044e"}