{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:7RBRUM55ESSYE74LI65K5TG7N7","short_pith_number":"pith:7RBRUM55","canonical_record":{"source":{"id":"1102.3022","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-02-15T10:13:45Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a2bc3e4d5fc88330b034c3756ced3539db8a41986ac36298e4395edca2935bca","abstract_canon_sha256":"270a8776e8d614b8841c6c8c7be04d3438b5eefbbf52cd5c103e8307c395a8fb"},"schema_version":"1.0"},"canonical_sha256":"fc431a33bd24a5827f8b47baaeccdf6fe150411a273c6991fbcb64152b3dd344","source":{"kind":"arxiv","id":"1102.3022","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.3022","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"arxiv_version","alias_value":"1102.3022v2","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.3022","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"pith_short_12","alias_value":"7RBRUM55ESSY","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7RBRUM55ESSYE74L","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7RBRUM55","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:7RBRUM55ESSYE74LI65K5TG7N7","target":"record","payload":{"canonical_record":{"source":{"id":"1102.3022","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-02-15T10:13:45Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a2bc3e4d5fc88330b034c3756ced3539db8a41986ac36298e4395edca2935bca","abstract_canon_sha256":"270a8776e8d614b8841c6c8c7be04d3438b5eefbbf52cd5c103e8307c395a8fb"},"schema_version":"1.0"},"canonical_sha256":"fc431a33bd24a5827f8b47baaeccdf6fe150411a273c6991fbcb64152b3dd344","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:23:35.861944Z","signature_b64":"lL8r8K1eDHlgmriKKVPpdZTU2c1fyI6+iNCnOmNGuAzPNrkqlcopEcTzXN/N41Wk2MHTn5F+2xP3OMmJB/32Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc431a33bd24a5827f8b47baaeccdf6fe150411a273c6991fbcb64152b3dd344","last_reissued_at":"2026-05-18T03:23:35.861365Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:23:35.861365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.3022","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":"2026-05-18T03:23:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i150LjAovRuj6GTR0k7UMKUo0AkW9Y8CmPeKLhCzNTBSReAuIdmoEXaBv5a6Xu+HQzhy+OH543OqVAdWwpW4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:39:55.699319Z"},"content_sha256":"e24780946eb69934af5a4dcc3a5df8aa745bb7cd19e6ebb4acb9404bd0e4cb6e","schema_version":"1.0","event_id":"sha256:e24780946eb69934af5a4dcc3a5df8aa745bb7cd19e6ebb4acb9404bd0e4cb6e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:7RBRUM55ESSYE74LI65K5TG7N7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Black holes with current loops revisited","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Ian G Moss","submitted_at":"2011-02-15T10:13:45Z","abstract_excerpt":"The electromagnetic field around a Kerr black hole inside a current loop is sometimes used as the basis of a toy model for discussing the properties of particle orbits near astrophysical black holes. The motivation for the present paper is to correct the published solution to Maxwell's equations with a charged current loop. Dipole approximations and closed-form expressions in the extreme Kerr limit are also presented. Using the corrected solution, it turns out that imposing a vanishing electromotive force produces a loop with a potential which is finite everywhere outside the black hole. Ring "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.3022","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":""},"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":"2026-05-18T03:23:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"asR4tJ+a1BlJPY6WgHh7Mcwi/3XvKsmUqlWI1gfvb6WBUtXWQfkx9/PoCPf/Ar741wEzkVxw6CQx1uY8qlgdCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:39:55.700112Z"},"content_sha256":"36f8d74bb23255181defade90d1d10a2b1fad21bbb1bc87c5dd474fe9fcde933","schema_version":"1.0","event_id":"sha256:36f8d74bb23255181defade90d1d10a2b1fad21bbb1bc87c5dd474fe9fcde933"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7RBRUM55ESSYE74LI65K5TG7N7/bundle.json","state_url":"https://pith.science/pith/7RBRUM55ESSYE74LI65K5TG7N7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7RBRUM55ESSYE74LI65K5TG7N7/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":"2026-08-05T07:39:55Z","links":{"resolver":"https://pith.science/pith/7RBRUM55ESSYE74LI65K5TG7N7","bundle":"https://pith.science/pith/7RBRUM55ESSYE74LI65K5TG7N7/bundle.json","state":"https://pith.science/pith/7RBRUM55ESSYE74LI65K5TG7N7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7RBRUM55ESSYE74LI65K5TG7N7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:7RBRUM55ESSYE74LI65K5TG7N7","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":"270a8776e8d614b8841c6c8c7be04d3438b5eefbbf52cd5c103e8307c395a8fb","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-02-15T10:13:45Z","title_canon_sha256":"a2bc3e4d5fc88330b034c3756ced3539db8a41986ac36298e4395edca2935bca"},"schema_version":"1.0","source":{"id":"1102.3022","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.3022","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"arxiv_version","alias_value":"1102.3022v2","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.3022","created_at":"2026-05-18T03:23:35Z"},{"alias_kind":"pith_short_12","alias_value":"7RBRUM55ESSY","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7RBRUM55ESSYE74L","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7RBRUM55","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:36f8d74bb23255181defade90d1d10a2b1fad21bbb1bc87c5dd474fe9fcde933","target":"graph","created_at":"2026-05-18T03:23:35Z","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":"The electromagnetic field around a Kerr black hole inside a current loop is sometimes used as the basis of a toy model for discussing the properties of particle orbits near astrophysical black holes. The motivation for the present paper is to correct the published solution to Maxwell's equations with a charged current loop. Dipole approximations and closed-form expressions in the extreme Kerr limit are also presented. Using the corrected solution, it turns out that imposing a vanishing electromotive force produces a loop with a potential which is finite everywhere outside the black hole. Ring ","authors_text":"Ian G Moss","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-02-15T10:13:45Z","title":"Black holes with current loops revisited"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.3022","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:e24780946eb69934af5a4dcc3a5df8aa745bb7cd19e6ebb4acb9404bd0e4cb6e","target":"record","created_at":"2026-05-18T03:23:35Z","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":"270a8776e8d614b8841c6c8c7be04d3438b5eefbbf52cd5c103e8307c395a8fb","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-02-15T10:13:45Z","title_canon_sha256":"a2bc3e4d5fc88330b034c3756ced3539db8a41986ac36298e4395edca2935bca"},"schema_version":"1.0","source":{"id":"1102.3022","kind":"arxiv","version":2}},"canonical_sha256":"fc431a33bd24a5827f8b47baaeccdf6fe150411a273c6991fbcb64152b3dd344","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc431a33bd24a5827f8b47baaeccdf6fe150411a273c6991fbcb64152b3dd344","first_computed_at":"2026-05-18T03:23:35.861365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:35.861365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lL8r8K1eDHlgmriKKVPpdZTU2c1fyI6+iNCnOmNGuAzPNrkqlcopEcTzXN/N41Wk2MHTn5F+2xP3OMmJB/32Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:35.861944Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.3022","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e24780946eb69934af5a4dcc3a5df8aa745bb7cd19e6ebb4acb9404bd0e4cb6e","sha256:36f8d74bb23255181defade90d1d10a2b1fad21bbb1bc87c5dd474fe9fcde933"],"state_sha256":"e01aee8c72287802e073540e37d6d7ea393e54eed9c00f1f6d0e38c759333c47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hp7Ca0FXCVWAsLuGc1L+Dep+ey54RX2yhfd4JMsC6raRd0rAFgjpShFmgfdCFla3T1wVhT7qRTdnv4ihJL0EDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:39:55.706348Z","bundle_sha256":"fc278268e427f17b27720a80b956a8abfa2a36eedbd9ea2bb78240bf750a79be"}}