{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:54UQA3SVGQA42ST4JG3USI3ERN","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":"00b7998644ab3fb721a58bfe49bf1f67d76175946d1edb98d47dbc1b5d638c2e","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-03-14T17:59:51Z","title_canon_sha256":"263141a7a2442743384233e159a376e9493d68f7ec3fff42638334964ea3b7d1"},"schema_version":"1.0","source":{"id":"1703.04625","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04625","created_at":"2026-05-18T00:38:03Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04625v2","created_at":"2026-05-18T00:38:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04625","created_at":"2026-05-18T00:38:03Z"},{"alias_kind":"pith_short_12","alias_value":"54UQA3SVGQA4","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"54UQA3SVGQA42ST4","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"54UQA3SV","created_at":"2026-05-18T12:31:00Z"}],"graph_snapshots":[{"event_id":"sha256:cce395def258c01e436b620bab1ab8d7f2e36700a89ae57a4dad9035a120b438","target":"graph","created_at":"2026-05-18T00:38:03Z","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 establish various general results concerning static and spherically symmetric black hole solutions of general higher-derivative extensions of Einstein gravity. We prove that the only theories susceptible of admitting solutions with $g_{tt}g_{rr}=-1$ and representing the exterior field of a spherically symmetric distribution of mass are those that only propagate a massless and traceless graviton on the vacuum. Then, we provide a simple (and computationally powerful) sufficient condition for a theory to admit solutions of that kind, as well as a systematic way for constructing them for a give","authors_text":"Pablo A. Cano, Pablo Bueno","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-03-14T17:59:51Z","title":"On black holes in higher-derivative gravities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04625","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":"sha256:349a93a6e4fca518e56140879260222b567c71cb2ebc17676c2221f75bffb283","target":"record","created_at":"2026-05-18T00:38:03Z","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":"00b7998644ab3fb721a58bfe49bf1f67d76175946d1edb98d47dbc1b5d638c2e","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-03-14T17:59:51Z","title_canon_sha256":"263141a7a2442743384233e159a376e9493d68f7ec3fff42638334964ea3b7d1"},"schema_version":"1.0","source":{"id":"1703.04625","kind":"arxiv","version":2}},"canonical_sha256":"ef29006e553401cd4a7c49b74923648b4a7523dbcb7c429bc16e580d667d353d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef29006e553401cd4a7c49b74923648b4a7523dbcb7c429bc16e580d667d353d","first_computed_at":"2026-05-18T00:38:03.358321Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:03.358321Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qNAhyfhfv20V+gbD6kaPMVbL3tX7UFhAoKpe3zJ3cRd5aeR1QA41rDre3w1vwoK1kqfnAeoT970dfqqbR2kcBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:03.358906Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.04625","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:349a93a6e4fca518e56140879260222b567c71cb2ebc17676c2221f75bffb283","sha256:cce395def258c01e436b620bab1ab8d7f2e36700a89ae57a4dad9035a120b438"],"state_sha256":"de5a11b294951bf49ef0f040cdab55a3af7c1a9e36fcfc676a0d14d59d9e39ac"}