{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:MFQ5BVHY2PFBHIXDTGFQP5VZJS","short_pith_number":"pith:MFQ5BVHY","schema_version":"1.0","canonical_sha256":"6161d0d4f8d3ca13a2e3998b07f6b94cb505137397374e6e82a5742f81e19268","source":{"kind":"arxiv","id":"1710.09152","version":3},"attestation_state":"computed","paper":{"title":"The essence of the Blandford-Znajek process","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"Shunichiro Kinoshita, Takahisa Igata","submitted_at":"2017-10-25T10:20:38Z","abstract_excerpt":"From a spacetime perspective, the dynamics of magnetic field lines of force-free electromagnetic fields can be rewritten into a quite similar form for the dynamics of strings, i.e., dynamics of \"field sheets\". Using this formalism, we explicitly show that the field sheets of stationary and axisymmetric force-free electromagnetic fields have identical intrinsic properties to the world sheets of rigidly rotating Nambu-Goto strings. Thus, we conclude that the Blandford-Znajek process is kinematically identical to an energy-extraction mechanism by the Nambu-Goto string with an effective magnetic t"},"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":"1710.09152","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2017-10-25T10:20:38Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"b1d3e725874dab230fc4de0a50d3c435ad60da56060c797a8889076d1a8da878","abstract_canon_sha256":"56db945e68bdba95de19213db104843f8706ec2fa19447ed91e7cf6debad607b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:53.438894Z","signature_b64":"w1Wb4vYG65E195gjA8qrBpPGJ8hrRfv+kOxXoZY+9T+noAjEyO0ZU2aJgaIRTEDJY/avtXAOe9a+jFeWfk0RCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6161d0d4f8d3ca13a2e3998b07f6b94cb505137397374e6e82a5742f81e19268","last_reissued_at":"2026-05-18T00:19:53.438132Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:53.438132Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The essence of the Blandford-Znajek process","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"Shunichiro Kinoshita, Takahisa Igata","submitted_at":"2017-10-25T10:20:38Z","abstract_excerpt":"From a spacetime perspective, the dynamics of magnetic field lines of force-free electromagnetic fields can be rewritten into a quite similar form for the dynamics of strings, i.e., dynamics of \"field sheets\". Using this formalism, we explicitly show that the field sheets of stationary and axisymmetric force-free electromagnetic fields have identical intrinsic properties to the world sheets of rigidly rotating Nambu-Goto strings. Thus, we conclude that the Blandford-Znajek process is kinematically identical to an energy-extraction mechanism by the Nambu-Goto string with an effective magnetic t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09152","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1710.09152","created_at":"2026-05-18T00:19:53.438248+00:00"},{"alias_kind":"arxiv_version","alias_value":"1710.09152v3","created_at":"2026-05-18T00:19:53.438248+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09152","created_at":"2026-05-18T00:19:53.438248+00:00"},{"alias_kind":"pith_short_12","alias_value":"MFQ5BVHY2PFB","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_16","alias_value":"MFQ5BVHY2PFBHIXD","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_8","alias_value":"MFQ5BVHY","created_at":"2026-05-18T12:31:31.346846+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.20656","citing_title":"Time evolution of a Nambu-Goto string coiling around a Kerr black hole","ref_index":23,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS","json":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS.json","graph_json":"https://pith.science/api/pith-number/MFQ5BVHY2PFBHIXDTGFQP5VZJS/graph.json","events_json":"https://pith.science/api/pith-number/MFQ5BVHY2PFBHIXDTGFQP5VZJS/events.json","paper":"https://pith.science/paper/MFQ5BVHY"},"agent_actions":{"view_html":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS","download_json":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS.json","view_paper":"https://pith.science/paper/MFQ5BVHY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1710.09152&json=true","fetch_graph":"https://pith.science/api/pith-number/MFQ5BVHY2PFBHIXDTGFQP5VZJS/graph.json","fetch_events":"https://pith.science/api/pith-number/MFQ5BVHY2PFBHIXDTGFQP5VZJS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS/action/storage_attestation","attest_author":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS/action/author_attestation","sign_citation":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS/action/citation_signature","submit_replication":"https://pith.science/pith/MFQ5BVHY2PFBHIXDTGFQP5VZJS/action/replication_record"}},"created_at":"2026-05-18T00:19:53.438248+00:00","updated_at":"2026-05-18T00:19:53.438248+00:00"}