{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ZZ3MWQJKWXR6XSI3GD6GRXRGD4","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":"529842d9728899f96e56e612a45e8bba644275ae19dc59cb633c54bb97080096","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2015-04-06T09:41:39Z","title_canon_sha256":"c4e8bd99fb5c36621bc06ae02f2c199b4ba6d2640465f07af3eed01e500c9341"},"schema_version":"1.0","source":{"id":"1504.01244","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01244","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01244v2","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01244","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZZ3MWQJKWXR6","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZZ3MWQJKWXR6XSI3","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZZ3MWQJK","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:8a77bb2879ce029e5dc12a6d676c5ae6e819cb730f64cb7e7a7600870b9941b9","target":"graph","created_at":"2026-05-18T00:48:33Z","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"},"paper":{"abstract_excerpt":"We show that a metric of arbitrary dimension and signature which allows for a standard Wick-rotation to a Riemannian metric necessarily has a purely electric Riemann and Weyl tensor.","authors_text":"Christer Helleland, Sigbjorn Hervik","cross_cats":["gr-qc","math.DG","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2015-04-06T09:41:39Z","title":"A Wick-rotatable metric is purely electric"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01244","kind":"arxiv","version":2},"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":"sha256:8166653aa084902a536ed2c3772dad42ff8ee02a3e5511c90d97f91fa6eba21b","target":"record","created_at":"2026-05-18T00:48:33Z","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":"529842d9728899f96e56e612a45e8bba644275ae19dc59cb633c54bb97080096","cross_cats_sorted":["gr-qc","math.DG","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2015-04-06T09:41:39Z","title_canon_sha256":"c4e8bd99fb5c36621bc06ae02f2c199b4ba6d2640465f07af3eed01e500c9341"},"schema_version":"1.0","source":{"id":"1504.01244","kind":"arxiv","version":2}},"canonical_sha256":"ce76cb412ab5e3ebc91b30fc68de261f1b8b3b24c9ba97590a6a82ab79a1d1cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce76cb412ab5e3ebc91b30fc68de261f1b8b3b24c9ba97590a6a82ab79a1d1cc","first_computed_at":"2026-05-18T00:48:33.229792Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:33.229792Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hjrr3YOFk1+jxAmDiviKftfqJDt2cjE/tpbc77Q9JR7ZR+K483oyHUwhA40Ysli9Mx5H0tTPSpYNmrsJZlfwBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:33.230389Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01244","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8166653aa084902a536ed2c3772dad42ff8ee02a3e5511c90d97f91fa6eba21b","sha256:8a77bb2879ce029e5dc12a6d676c5ae6e819cb730f64cb7e7a7600870b9941b9"],"state_sha256":"25024e518dd81364f46e4271de2b8160fed56957199279a9c51a72a3c9116d8b"}