{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:D3CQTU5VCPZ2RK4BWL5YEDC6NI","short_pith_number":"pith:D3CQTU5V","canonical_record":{"source":{"id":"1705.03654","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-10T08:18:50Z","cross_cats_sorted":[],"title_canon_sha256":"c8258fdf56d15b992a39205b4da5b28798e223daa89cfe270322fa4c867819d1","abstract_canon_sha256":"7ef6efdc0a8b7d48d883dd670ac71b2814aa2119652447ef420f43ee78d71d65"},"schema_version":"1.0"},"canonical_sha256":"1ec509d3b513f3a8ab81b2fb820c5e6a3f2bacb967d4125012c9c8c5af463a8c","source":{"kind":"arxiv","id":"1705.03654","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.03654","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"1705.03654v3","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.03654","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"D3CQTU5VCPZ2","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"D3CQTU5VCPZ2RK4B","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"D3CQTU5V","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:D3CQTU5VCPZ2RK4BWL5YEDC6NI","target":"record","payload":{"canonical_record":{"source":{"id":"1705.03654","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-10T08:18:50Z","cross_cats_sorted":[],"title_canon_sha256":"c8258fdf56d15b992a39205b4da5b28798e223daa89cfe270322fa4c867819d1","abstract_canon_sha256":"7ef6efdc0a8b7d48d883dd670ac71b2814aa2119652447ef420f43ee78d71d65"},"schema_version":"1.0"},"canonical_sha256":"1ec509d3b513f3a8ab81b2fb820c5e6a3f2bacb967d4125012c9c8c5af463a8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:37.199167Z","signature_b64":"8BtTNZjZvd+zmXzDgPVOj5HpJb1ewv6tzohw9au0KVt01uu5uox868eFY3CS/uIq5p5+RmHa77UNefdrZHmMDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ec509d3b513f3a8ab81b2fb820c5e6a3f2bacb967d4125012c9c8c5af463a8c","last_reissued_at":"2026-05-18T00:34:37.198675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:37.198675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.03654","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g/Wy/GXLXuLkXUm5WAUrDpy79wbad+lgZKfST6/pwNN4b352AsnQLzIkOgxP6rCFBgXuynjNtmSkq03nm9xVAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:05:22.363749Z"},"content_sha256":"d1e8bbddfa68036dfddceda58f0890184c3f24e060bfe1e3459e8b3e97da5dc5","schema_version":"1.0","event_id":"sha256:d1e8bbddfa68036dfddceda58f0890184c3f24e060bfe1e3459e8b3e97da5dc5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:D3CQTU5VCPZ2RK4BWL5YEDC6NI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scalar perturbations of nonsingular nonrotating black holes in conformal gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bobir Toshmatov, Bobomurat Ahmedov, Cosimo Bambi, Jan Schee, Zden\\v{e}k Stuchl\\'ik","submitted_at":"2017-05-10T08:18:50Z","abstract_excerpt":"We study scalar and electromagnetic perturbations of a family of nonsingular nonrotating black hole spacetimes that are solutions in a large class of conformally invariant theories of gravity. The effective potential for scalar perturbations depends on the exact form of the scaling factor. Electromagnetic perturbations do not feel the scaling factor, and the corresponding quasinormal mode spectrum is the same as in the Schwarzschild metric. We find that these black hole metrics are stable under scalar and electromagnetic perturbations. Assuming that the quasinormal mode spectrum for scalar per"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.03654","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sn9FdlmW7rQsQCEtnSdcReDmqsLYaarlUXoL34N3ElNvL+4vFWw8fb+DK5Q8pFLqwt8xipBS/81NtdAAlwjpBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:05:22.364204Z"},"content_sha256":"78a4342e1a5e1d96b709d173e96efb3043017c64f3d75a2b4b0e9bf12646af48","schema_version":"1.0","event_id":"sha256:78a4342e1a5e1d96b709d173e96efb3043017c64f3d75a2b4b0e9bf12646af48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/bundle.json","state_url":"https://pith.science/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/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":"2026-05-25T08:05:22Z","links":{"resolver":"https://pith.science/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI","bundle":"https://pith.science/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/bundle.json","state":"https://pith.science/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D3CQTU5VCPZ2RK4BWL5YEDC6NI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:D3CQTU5VCPZ2RK4BWL5YEDC6NI","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":"7ef6efdc0a8b7d48d883dd670ac71b2814aa2119652447ef420f43ee78d71d65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-10T08:18:50Z","title_canon_sha256":"c8258fdf56d15b992a39205b4da5b28798e223daa89cfe270322fa4c867819d1"},"schema_version":"1.0","source":{"id":"1705.03654","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.03654","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"1705.03654v3","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.03654","created_at":"2026-05-18T00:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"D3CQTU5VCPZ2","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"D3CQTU5VCPZ2RK4B","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"D3CQTU5V","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:78a4342e1a5e1d96b709d173e96efb3043017c64f3d75a2b4b0e9bf12646af48","target":"graph","created_at":"2026-05-18T00:34:37Z","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 study scalar and electromagnetic perturbations of a family of nonsingular nonrotating black hole spacetimes that are solutions in a large class of conformally invariant theories of gravity. The effective potential for scalar perturbations depends on the exact form of the scaling factor. Electromagnetic perturbations do not feel the scaling factor, and the corresponding quasinormal mode spectrum is the same as in the Schwarzschild metric. We find that these black hole metrics are stable under scalar and electromagnetic perturbations. Assuming that the quasinormal mode spectrum for scalar per","authors_text":"Bobir Toshmatov, Bobomurat Ahmedov, Cosimo Bambi, Jan Schee, Zden\\v{e}k Stuchl\\'ik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-10T08:18:50Z","title":"Scalar perturbations of nonsingular nonrotating black holes in conformal gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.03654","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:d1e8bbddfa68036dfddceda58f0890184c3f24e060bfe1e3459e8b3e97da5dc5","target":"record","created_at":"2026-05-18T00:34:37Z","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":"7ef6efdc0a8b7d48d883dd670ac71b2814aa2119652447ef420f43ee78d71d65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-10T08:18:50Z","title_canon_sha256":"c8258fdf56d15b992a39205b4da5b28798e223daa89cfe270322fa4c867819d1"},"schema_version":"1.0","source":{"id":"1705.03654","kind":"arxiv","version":3}},"canonical_sha256":"1ec509d3b513f3a8ab81b2fb820c5e6a3f2bacb967d4125012c9c8c5af463a8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ec509d3b513f3a8ab81b2fb820c5e6a3f2bacb967d4125012c9c8c5af463a8c","first_computed_at":"2026-05-18T00:34:37.198675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:37.198675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8BtTNZjZvd+zmXzDgPVOj5HpJb1ewv6tzohw9au0KVt01uu5uox868eFY3CS/uIq5p5+RmHa77UNefdrZHmMDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:37.199167Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.03654","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1e8bbddfa68036dfddceda58f0890184c3f24e060bfe1e3459e8b3e97da5dc5","sha256:78a4342e1a5e1d96b709d173e96efb3043017c64f3d75a2b4b0e9bf12646af48"],"state_sha256":"6a9d7cfe53d61b5cc781d3eb35d9772043d01d26d40d5c97eb3c906df4156e00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c5Ex/BW9Pe0uk4qiI3X+6zjCoN+WAlFnvxZLLqLeNEVS/Xyse+aXA30P5JKo5i3E71mW4CC+SqeF2JadXegsAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T08:05:22.366755Z","bundle_sha256":"2b0067abbfb07bf25bf46a12d40a33e44447d864c491319e5cbb5f1b54e7c0a5"}}