{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:IKIGKILZDUS55BR2PG3AYSXLR2","short_pith_number":"pith:IKIGKILZ","canonical_record":{"source":{"id":"2009.03905","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-08T18:00:02Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"47250de49648362841bc0b6a6ad0ef0ca8f89420c80d28f80c26346bdf6bbdd2","abstract_canon_sha256":"803ccd934f4dfacb0f3c554f88f1ece78b596d193a0230789265a68b30ef9fac"},"schema_version":"1.0"},"canonical_sha256":"42906521791d25de863a79b60c4aeb8e9cf45a8f5a13c59f244773d2516d1f01","source":{"kind":"arxiv","id":"2009.03905","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.03905","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"arxiv_version","alias_value":"2009.03905v2","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.03905","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_12","alias_value":"IKIGKILZDUS5","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_16","alias_value":"IKIGKILZDUS55BR2","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_8","alias_value":"IKIGKILZ","created_at":"2026-07-05T02:05:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:IKIGKILZDUS55BR2PG3AYSXLR2","target":"record","payload":{"canonical_record":{"source":{"id":"2009.03905","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-08T18:00:02Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"47250de49648362841bc0b6a6ad0ef0ca8f89420c80d28f80c26346bdf6bbdd2","abstract_canon_sha256":"803ccd934f4dfacb0f3c554f88f1ece78b596d193a0230789265a68b30ef9fac"},"schema_version":"1.0"},"canonical_sha256":"42906521791d25de863a79b60c4aeb8e9cf45a8f5a13c59f244773d2516d1f01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:43.078610Z","signature_b64":"egQvhnaaStU/6eZZQcfiIFJJxcyQf+9ojnhRnRWdprBM6+71JW11skUqI66js0ymryIUeXwGRerXNfvo/tG4Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42906521791d25de863a79b60c4aeb8e9cf45a8f5a13c59f244773d2516d1f01","last_reissued_at":"2026-07-05T02:05:43.078210Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:43.078210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.03905","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:05:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OwYBckXIW0WJYufS3uuoaL0b+asTRn9y3WSTHpdrjVoyX4DDbLOa/oIF6Yyy+RG5XEaiUSzCn9s/981cAQJCCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:55:21.560081Z"},"content_sha256":"11d7a35eb1e0f787e5bac45369bbffb8da77fbc510d245b9ff5648ab3d1f89ea","schema_version":"1.0","event_id":"sha256:11d7a35eb1e0f787e5bac45369bbffb8da77fbc510d245b9ff5648ab3d1f89ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:IKIGKILZDUS55BR2PG3AYSXLR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin-induced black hole scalarization in Einstein-scalar-Gauss-Bonnet theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Burkhard Kleihaus, Emanuele Berti, Jutta Kunz, Lucas G. Collodel","submitted_at":"2020-09-08T18:00:02Z","abstract_excerpt":"We construct black hole solutions with spin-induced scalarization in a class of models where a scalar field is quadratically coupled to the topological Gauss-Bonnet term. Starting from the tachyonically unstable Kerr solutions, we obtain families of scalarized black holes such that the scalar field has either even or odd parity, and we investigate their domain of existence. The scalarized black holes can violate the Kerr rotation bound. We identify \"critical\" families of scalarized black hole solutions such that the expansion of the metric functions and of the scalar field at the horizon no lo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.03905","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2009.03905/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:05:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JjAhzdCM28MCx9XTFqw1KK5hhzDmpgYJf8wpFsT4u/ChyJ70gvyJCULcM5aqiUqsb+peEaHhRP7haXtKrx++Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:55:21.560604Z"},"content_sha256":"e166d34729a81c38e64081e9b0607855b36c6818203cd52a5f0304fc171cd617","schema_version":"1.0","event_id":"sha256:e166d34729a81c38e64081e9b0607855b36c6818203cd52a5f0304fc171cd617"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IKIGKILZDUS55BR2PG3AYSXLR2/bundle.json","state_url":"https://pith.science/pith/IKIGKILZDUS55BR2PG3AYSXLR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IKIGKILZDUS55BR2PG3AYSXLR2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-08T22:55:21Z","links":{"resolver":"https://pith.science/pith/IKIGKILZDUS55BR2PG3AYSXLR2","bundle":"https://pith.science/pith/IKIGKILZDUS55BR2PG3AYSXLR2/bundle.json","state":"https://pith.science/pith/IKIGKILZDUS55BR2PG3AYSXLR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IKIGKILZDUS55BR2PG3AYSXLR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:IKIGKILZDUS55BR2PG3AYSXLR2","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":"803ccd934f4dfacb0f3c554f88f1ece78b596d193a0230789265a68b30ef9fac","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-08T18:00:02Z","title_canon_sha256":"47250de49648362841bc0b6a6ad0ef0ca8f89420c80d28f80c26346bdf6bbdd2"},"schema_version":"1.0","source":{"id":"2009.03905","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.03905","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"arxiv_version","alias_value":"2009.03905v2","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.03905","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_12","alias_value":"IKIGKILZDUS5","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_16","alias_value":"IKIGKILZDUS55BR2","created_at":"2026-07-05T02:05:43Z"},{"alias_kind":"pith_short_8","alias_value":"IKIGKILZ","created_at":"2026-07-05T02:05:43Z"}],"graph_snapshots":[{"event_id":"sha256:e166d34729a81c38e64081e9b0607855b36c6818203cd52a5f0304fc171cd617","target":"graph","created_at":"2026-07-05T02:05:43Z","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/2009.03905/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We construct black hole solutions with spin-induced scalarization in a class of models where a scalar field is quadratically coupled to the topological Gauss-Bonnet term. Starting from the tachyonically unstable Kerr solutions, we obtain families of scalarized black holes such that the scalar field has either even or odd parity, and we investigate their domain of existence. The scalarized black holes can violate the Kerr rotation bound. We identify \"critical\" families of scalarized black hole solutions such that the expansion of the metric functions and of the scalar field at the horizon no lo","authors_text":"Burkhard Kleihaus, Emanuele Berti, Jutta Kunz, Lucas G. Collodel","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-08T18:00:02Z","title":"Spin-induced black hole scalarization in Einstein-scalar-Gauss-Bonnet theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.03905","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":"sha256:11d7a35eb1e0f787e5bac45369bbffb8da77fbc510d245b9ff5648ab3d1f89ea","target":"record","created_at":"2026-07-05T02:05:43Z","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":"803ccd934f4dfacb0f3c554f88f1ece78b596d193a0230789265a68b30ef9fac","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-09-08T18:00:02Z","title_canon_sha256":"47250de49648362841bc0b6a6ad0ef0ca8f89420c80d28f80c26346bdf6bbdd2"},"schema_version":"1.0","source":{"id":"2009.03905","kind":"arxiv","version":2}},"canonical_sha256":"42906521791d25de863a79b60c4aeb8e9cf45a8f5a13c59f244773d2516d1f01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42906521791d25de863a79b60c4aeb8e9cf45a8f5a13c59f244773d2516d1f01","first_computed_at":"2026-07-05T02:05:43.078210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:43.078210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"egQvhnaaStU/6eZZQcfiIFJJxcyQf+9ojnhRnRWdprBM6+71JW11skUqI66js0ymryIUeXwGRerXNfvo/tG4Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:43.078610Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.03905","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11d7a35eb1e0f787e5bac45369bbffb8da77fbc510d245b9ff5648ab3d1f89ea","sha256:e166d34729a81c38e64081e9b0607855b36c6818203cd52a5f0304fc171cd617"],"state_sha256":"aa8fcb1508186fe4aa1c960d1524273674e53c084a71a7c993ce37d4c435d6fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/2Iq8vb8pvjlUxcujGmszVylozY6oQoIHx+9HGTa19wn+u8Ii8z94TADWCkpV+0DbQNjPnmEdZDH1tOD8CxPAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T22:55:21.564447Z","bundle_sha256":"847405a12a68acee64a6aeebeed276c035b48eef72d2dfb833efecee24dab84e"}}