{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XF4M7YUSJ3ZQTVBN3MWFRDJ2AV","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":"15afdc1814c70e4fe80a6a9a38f3c9fccab8b214f4726c83923b234a319f0d72","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-08T12:49:08Z","title_canon_sha256":"34f248839919c6e46f28ecb8aaa467e2d37589427fdb90105ebcac4f01f9cc75"},"schema_version":"1.0","source":{"id":"1810.03411","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.03411","created_at":"2026-07-05T03:11:51Z"},{"alias_kind":"arxiv_version","alias_value":"1810.03411v3","created_at":"2026-07-05T03:11:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.03411","created_at":"2026-07-05T03:11:51Z"},{"alias_kind":"pith_short_12","alias_value":"XF4M7YUSJ3ZQ","created_at":"2026-07-05T03:11:51Z"},{"alias_kind":"pith_short_16","alias_value":"XF4M7YUSJ3ZQTVBN","created_at":"2026-07-05T03:11:51Z"},{"alias_kind":"pith_short_8","alias_value":"XF4M7YUS","created_at":"2026-07-05T03:11:51Z"}],"graph_snapshots":[{"event_id":"sha256:2e49dc780b790445f50fe7b45f93614fbd6b5e2f0eb6a485e0c600228d46023c","target":"graph","created_at":"2026-07-05T03:11:51Z","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/1810.03411/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The classical double copy idea relates some solutions of Einstein's theory with those of gauge and scalar field theories. We study the Kerr-Schild-Kundt (KSK) class of metrics in $d$-dimensions in the context of possible new examples of this idea. We first show that it is possible to solve the Einstein-Yang-Mills system exactly using the solutions of a Klein-Gordon type scalar equation when the metric is the $pp$-wave metric which is the simplest member of the KSK class. In the more general KSK class, the solutions of a scalar equation also solve the Yang-Mills, Maxwell and Einstein-Yang-Mills","authors_text":"Bayram Tekin, Metin Gurses","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-08T12:49:08Z","title":"Classical Double Copy: Kerr-Schild-Kundt metrics from Yang-Mills Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.03411","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":"sha256:03be9959b445f7bda08d6f1100e31cb340a7dcea49c279f19054ec73bf189dcc","target":"record","created_at":"2026-07-05T03:11:51Z","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":"15afdc1814c70e4fe80a6a9a38f3c9fccab8b214f4726c83923b234a319f0d72","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-08T12:49:08Z","title_canon_sha256":"34f248839919c6e46f28ecb8aaa467e2d37589427fdb90105ebcac4f01f9cc75"},"schema_version":"1.0","source":{"id":"1810.03411","kind":"arxiv","version":3}},"canonical_sha256":"b978cfe2924ef309d42ddb2c588d3a055995b6b9d421a30e9bea3dbb0485a723","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b978cfe2924ef309d42ddb2c588d3a055995b6b9d421a30e9bea3dbb0485a723","first_computed_at":"2026-07-05T03:11:51.121617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:11:51.121617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"75bcUVM421HPtJvYNwrAaSFwr6Jo6Yszn0agRUrkJVVJ8JNXKz9UmEiY9MsB4SSSNGiRhqJ7BVKmefpIiJAIDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:11:51.122104Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.03411","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03be9959b445f7bda08d6f1100e31cb340a7dcea49c279f19054ec73bf189dcc","sha256:2e49dc780b790445f50fe7b45f93614fbd6b5e2f0eb6a485e0c600228d46023c"],"state_sha256":"1a0cb30ee232d9a01bdab885af92cbc51e3e4af63a1797a73aa3d35ad0c41fba"}