{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:6OTPQKKN76UCVN752UR22KGVUA","short_pith_number":"pith:6OTPQKKN","schema_version":"1.0","canonical_sha256":"f3a6f8294dffa82ab7fdd523ad28d5a02053c513e323359ab41197b2d21f8236","source":{"kind":"arxiv","id":"1604.01898","version":1},"attestation_state":"computed","paper":{"title":"A strong magnetic field in the jet base of a supermassive black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"Cathy Horellou, Ivan Marti-Vidal, Sebastien Muller, Susanne Aalto, Wouter Vlemmings","submitted_at":"2016-04-07T07:31:56Z","abstract_excerpt":"Active galactic nuclei (AGN) host some of the most energetic phenomena in the Universe. AGN are thought to be powered by accretion of matter onto a rotating disk that surrounds a supermassive black hole. Jet streams can be boosted in energy near the event horizon of the black hole and then flow outward along the rotation axis of the disk. The mechanism that forms such a jet and guides it over scales from a few light-days up to millions of light-years remains uncertain, but magnetic fields are thought to play a critical role. Using the Atacama large mm/submm array (ALMA), we have detected a pol"},"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":"1604.01898","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-07T07:31:56Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"964d293d97afebcb15663fe03078d423864e4efce8cfcdcb254a77ffa9610d48","abstract_canon_sha256":"e515c9fd8796814b5f316a1598efe111509bb51535b3e0010f551fb9fbadb105"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:16.583153Z","signature_b64":"S8e/jjGmWw1zEiDR+vfK3lHCCUA0ROkOn9pluFp+Mf7IDxg7vdNM29M5ZBYdU894UDvewnQm5Dvs0RgnXHvyDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3a6f8294dffa82ab7fdd523ad28d5a02053c513e323359ab41197b2d21f8236","last_reissued_at":"2026-05-18T01:17:16.582434Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:16.582434Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A strong magnetic field in the jet base of a supermassive black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"Cathy Horellou, Ivan Marti-Vidal, Sebastien Muller, Susanne Aalto, Wouter Vlemmings","submitted_at":"2016-04-07T07:31:56Z","abstract_excerpt":"Active galactic nuclei (AGN) host some of the most energetic phenomena in the Universe. AGN are thought to be powered by accretion of matter onto a rotating disk that surrounds a supermassive black hole. Jet streams can be boosted in energy near the event horizon of the black hole and then flow outward along the rotation axis of the disk. The mechanism that forms such a jet and guides it over scales from a few light-days up to millions of light-years remains uncertain, but magnetic fields are thought to play a critical role. Using the Atacama large mm/submm array (ALMA), we have detected a pol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.01898","kind":"arxiv","version":1},"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":"1604.01898","created_at":"2026-05-18T01:17:16.582555+00:00"},{"alias_kind":"arxiv_version","alias_value":"1604.01898v1","created_at":"2026-05-18T01:17:16.582555+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.01898","created_at":"2026-05-18T01:17:16.582555+00:00"},{"alias_kind":"pith_short_12","alias_value":"6OTPQKKN76UC","created_at":"2026-05-18T12:30:01.593930+00:00"},{"alias_kind":"pith_short_16","alias_value":"6OTPQKKN76UCVN75","created_at":"2026-05-18T12:30:01.593930+00:00"},{"alias_kind":"pith_short_8","alias_value":"6OTPQKKN","created_at":"2026-05-18T12:30:01.593930+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2607.05246","citing_title":"The emergence of X-ray emission lines during relativistic radio-jet formation in the changing-look active galactic nucleus 1ES 1927+654","ref_index":134,"is_internal_anchor":true},{"citing_arxiv_id":"2606.31510","citing_title":"Magnetic field and plasma number density from radio and millimeter core measurements in AGN jets","ref_index":157,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA","json":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA.json","graph_json":"https://pith.science/api/pith-number/6OTPQKKN76UCVN752UR22KGVUA/graph.json","events_json":"https://pith.science/api/pith-number/6OTPQKKN76UCVN752UR22KGVUA/events.json","paper":"https://pith.science/paper/6OTPQKKN"},"agent_actions":{"view_html":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA","download_json":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA.json","view_paper":"https://pith.science/paper/6OTPQKKN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1604.01898&json=true","fetch_graph":"https://pith.science/api/pith-number/6OTPQKKN76UCVN752UR22KGVUA/graph.json","fetch_events":"https://pith.science/api/pith-number/6OTPQKKN76UCVN752UR22KGVUA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA/action/storage_attestation","attest_author":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA/action/author_attestation","sign_citation":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA/action/citation_signature","submit_replication":"https://pith.science/pith/6OTPQKKN76UCVN752UR22KGVUA/action/replication_record"}},"created_at":"2026-05-18T01:17:16.582555+00:00","updated_at":"2026-05-18T01:17:16.582555+00:00"}