{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO","short_pith_number":"pith:MUZ4K4Y6","schema_version":"1.0","canonical_sha256":"6533c5731ecfb20f0a9828aa84ee0f63bb159220c2739c66b88e22d359eb5b90","source":{"kind":"arxiv","id":"1210.8329","version":1},"attestation_state":"computed","paper":{"title":"Ultraviolet and X-ray variability of NGC 4051 over 45 days with XMM-Newton and Swift","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"P. Uttley, S. Vaughan, W. N. Alston","submitted_at":"2012-10-31T13:41:16Z","abstract_excerpt":"We analyse 15 XMM-Newton observations of the Seyfert galaxy NGC 4051 obtained over 45 days to determine the ultraviolet (UV) light curve variability characteristics and search for correlated UV/X-ray emission. The UV light curve shows variability on all time scales, however with lower fractional rms than the 0.2-10 keV X-rays. On days-weeks timescales the fractional variability of the UV is Fvar ~ 8%, and on short (~ hours) timescales Fvar ~ 2%. The within-observation excess variance in 4 of the 15 UV observations was found be much higher than the remaining 11. This was caused by large systema"},"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":"1210.8329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-31T13:41:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c258aba5f2e8952fad27c5bfcbb6175c8a2f86b6f9b7dd0d1d82580fc7e615a0","abstract_canon_sha256":"18101202f9139033c0b53dbe9d49faf24695cf858f812c86bcae37ac616f7f8e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:28.845851Z","signature_b64":"EcrJbnsclJRErUFlGymgW8S5U3LGSTQ8Ph4JDOlljLoy9Ijhy2XtMu0SAEJHD59J+6WQxR6+LyRKqmu4hDUVAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6533c5731ecfb20f0a9828aa84ee0f63bb159220c2739c66b88e22d359eb5b90","last_reissued_at":"2026-05-18T01:53:28.845144Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:28.845144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ultraviolet and X-ray variability of NGC 4051 over 45 days with XMM-Newton and Swift","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"P. Uttley, S. Vaughan, W. N. Alston","submitted_at":"2012-10-31T13:41:16Z","abstract_excerpt":"We analyse 15 XMM-Newton observations of the Seyfert galaxy NGC 4051 obtained over 45 days to determine the ultraviolet (UV) light curve variability characteristics and search for correlated UV/X-ray emission. The UV light curve shows variability on all time scales, however with lower fractional rms than the 0.2-10 keV X-rays. On days-weeks timescales the fractional variability of the UV is Fvar ~ 8%, and on short (~ hours) timescales Fvar ~ 2%. The within-observation excess variance in 4 of the 15 UV observations was found be much higher than the remaining 11. This was caused by large systema"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.8329","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":"1210.8329","created_at":"2026-05-18T01:53:28.845246+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.8329v1","created_at":"2026-05-18T01:53:28.845246+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.8329","created_at":"2026-05-18T01:53:28.845246+00:00"},{"alias_kind":"pith_short_12","alias_value":"MUZ4K4Y6Z6ZA","created_at":"2026-05-18T12:27:14.488303+00:00"},{"alias_kind":"pith_short_16","alias_value":"MUZ4K4Y6Z6ZA6CUY","created_at":"2026-05-18T12:27:14.488303+00:00"},{"alias_kind":"pith_short_8","alias_value":"MUZ4K4Y6","created_at":"2026-05-18T12:27:14.488303+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/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO","json":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO.json","graph_json":"https://pith.science/api/pith-number/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/graph.json","events_json":"https://pith.science/api/pith-number/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/events.json","paper":"https://pith.science/paper/MUZ4K4Y6"},"agent_actions":{"view_html":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO","download_json":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO.json","view_paper":"https://pith.science/paper/MUZ4K4Y6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.8329&json=true","fetch_graph":"https://pith.science/api/pith-number/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/graph.json","fetch_events":"https://pith.science/api/pith-number/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/action/storage_attestation","attest_author":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/action/author_attestation","sign_citation":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/action/citation_signature","submit_replication":"https://pith.science/pith/MUZ4K4Y6Z6ZA6CUYFCVIJ3QPMO/action/replication_record"}},"created_at":"2026-05-18T01:53:28.845246+00:00","updated_at":"2026-05-18T01:53:28.845246+00:00"}