{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:K755LKBRXCDM3YJS7RFQDDLMKI","short_pith_number":"pith:K755LKBR","schema_version":"1.0","canonical_sha256":"57fbd5a831b886cde132fc4b018d6c520d1363f49cd71de15d405c80f997dd06","source":{"kind":"arxiv","id":"0804.4895","version":2},"attestation_state":"computed","paper":{"title":"Origin of Intense Magnetic Fields Near Black Holes Due to Non-Minimal Gravitational-Electromagnetic Coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Rafael S. de Souza, Reuven Opher","submitted_at":"2008-04-30T19:54:12Z","abstract_excerpt":"The origin of magnetic fields in astrophysical objects is a challenging problem in astrophysics. Throughout the years, many scientists have suggested that non-minimal gravitational-electromagnetic coupling (NMGEC) could be the origin of the ubiquitous astrophysical magnetic fields. We investigate the possible origin of intense magnetic fields $\\sim 10^{15}-10^{16}$ by NMGEC near rotating neutron stars and black holes, connected with magnetars, quasars, and gamma-ray bursts. Whereas these intense magnetic fields are difficult to explain astrophysically, we find that they are easily explained by"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0804.4895","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-04-30T19:54:12Z","cross_cats_sorted":[],"title_canon_sha256":"24899792b829c6ff17e8efa9f8a520b8802470a0121c50d4c29f998e99efd0b9","abstract_canon_sha256":"f68589e6caf54caf879531cc9c87a40285f6cea85076d700976f6c9f45c16ca7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:54.713254Z","signature_b64":"JCY0Uc9iWOAPL5EQdzKU98Y5j22dqQ3GXcY2O5asr1CdD5gWFRWredfsOb+TcHSNFgBDuaF62WsvyLHk/vo2CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57fbd5a831b886cde132fc4b018d6c520d1363f49cd71de15d405c80f997dd06","last_reissued_at":"2026-05-18T04:09:54.712602Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:54.712602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Origin of Intense Magnetic Fields Near Black Holes Due to Non-Minimal Gravitational-Electromagnetic Coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Rafael S. de Souza, Reuven Opher","submitted_at":"2008-04-30T19:54:12Z","abstract_excerpt":"The origin of magnetic fields in astrophysical objects is a challenging problem in astrophysics. Throughout the years, many scientists have suggested that non-minimal gravitational-electromagnetic coupling (NMGEC) could be the origin of the ubiquitous astrophysical magnetic fields. We investigate the possible origin of intense magnetic fields $\\sim 10^{15}-10^{16}$ by NMGEC near rotating neutron stars and black holes, connected with magnetars, quasars, and gamma-ray bursts. Whereas these intense magnetic fields are difficult to explain astrophysically, we find that they are easily explained by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.4895","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0804.4895","created_at":"2026-05-18T04:09:54.712700+00:00"},{"alias_kind":"arxiv_version","alias_value":"0804.4895v2","created_at":"2026-05-18T04:09:54.712700+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.4895","created_at":"2026-05-18T04:09:54.712700+00:00"},{"alias_kind":"pith_short_12","alias_value":"K755LKBRXCDM","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"K755LKBRXCDM3YJS","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"K755LKBR","created_at":"2026-05-18T12:25:57.157939+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI","json":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI.json","graph_json":"https://pith.science/api/pith-number/K755LKBRXCDM3YJS7RFQDDLMKI/graph.json","events_json":"https://pith.science/api/pith-number/K755LKBRXCDM3YJS7RFQDDLMKI/events.json","paper":"https://pith.science/paper/K755LKBR"},"agent_actions":{"view_html":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI","download_json":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI.json","view_paper":"https://pith.science/paper/K755LKBR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0804.4895&json=true","fetch_graph":"https://pith.science/api/pith-number/K755LKBRXCDM3YJS7RFQDDLMKI/graph.json","fetch_events":"https://pith.science/api/pith-number/K755LKBRXCDM3YJS7RFQDDLMKI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI/action/storage_attestation","attest_author":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI/action/author_attestation","sign_citation":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI/action/citation_signature","submit_replication":"https://pith.science/pith/K755LKBRXCDM3YJS7RFQDDLMKI/action/replication_record"}},"created_at":"2026-05-18T04:09:54.712700+00:00","updated_at":"2026-05-18T04:09:54.712700+00:00"}