{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2001:FXRZEOJDCHMNQ5BFPGL7GB6V4O","short_pith_number":"pith:FXRZEOJD","schema_version":"1.0","canonical_sha256":"2de392392311d8d874257997f307d5e381d3fb7055726097e27cd03a4031753b","source":{"kind":"arxiv","id":"astro-ph/0107075","version":1},"attestation_state":"computed","paper":{"title":"Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. III. Optical Observations and the Optical--UV--X-ray Connection","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.V.Filippenko, B.M.Peterson, B.W.Peterson, C.J.Taylor, C.M.Gaskell, E.A.Sergeeva, E.Detsis, E.S.Klimek, G.M.Stirpe, H.Negoro, H.Netzer, I.Papadakis, I.Papamastorakis, K.A.Crowley, K.S.Rumstay, K.von Braun, M.E.Hiller, M.Gliozzi, M.H.Lannon, M.Vestergaard, O.Shemmer, P.Martini, P.Romano, P.Uttley, R.Bertram, R.M.Wagner, R.R.Treffers, R.W.Pogge, S.Collier, S.G.Sergeev, S.Kaspi, S.Mathur, T.A.George, T.J.Turner, T.L.Jewell, V.I.Pronik, W.Brinkmann, W.Li, Z.Zheng","submitted_at":"2001-07-04T14:00:11Z","abstract_excerpt":"We present the results of a two-year long optical monitoring program of the narrow-line Seyfert 1 galaxy Akn 564. The majority of this monitoring project was also covered by X-ray observations (RXTE) and for a period of ~50 days, we observed the galaxy in UV (HST) and X-rays (RXTE & ASCA) simultaneously with the ground-based observations. Rapid and large-amplitude variations seen in the X-ray band, on a daily and hourly time-scale, were not detected at optical and UV wavelengths, which in turn exhibited much lower variability either on short (one day) or long (several months) time-scales. The "},"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":"astro-ph/0107075","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-04T14:00:11Z","cross_cats_sorted":[],"title_canon_sha256":"d475c67e5f7dfe01ea952db1dadfb4c40b65def8c06ae66b559e8cf8db5bb86f","abstract_canon_sha256":"1d7fd431385b61a260b96229a960172d98d96f53eebe140c59ed28abe93cdee4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:39.357412Z","signature_b64":"hMXh5ke0NRtUkOW6fcBqbcLrRkcZQWgxKhRrLpffarzQO9L/XTgReIgv/c03Lx/2C8tYghhUMYCF8q9lMXFqAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2de392392311d8d874257997f307d5e381d3fb7055726097e27cd03a4031753b","last_reissued_at":"2026-07-04T16:23:39.356914Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:39.356914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. III. Optical Observations and the Optical--UV--X-ray Connection","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.V.Filippenko, B.M.Peterson, B.W.Peterson, C.J.Taylor, C.M.Gaskell, E.A.Sergeeva, E.Detsis, E.S.Klimek, G.M.Stirpe, H.Negoro, H.Netzer, I.Papadakis, I.Papamastorakis, K.A.Crowley, K.S.Rumstay, K.von Braun, M.E.Hiller, M.Gliozzi, M.H.Lannon, M.Vestergaard, O.Shemmer, P.Martini, P.Romano, P.Uttley, R.Bertram, R.M.Wagner, R.R.Treffers, R.W.Pogge, S.Collier, S.G.Sergeev, S.Kaspi, S.Mathur, T.A.George, T.J.Turner, T.L.Jewell, V.I.Pronik, W.Brinkmann, W.Li, Z.Zheng","submitted_at":"2001-07-04T14:00:11Z","abstract_excerpt":"We present the results of a two-year long optical monitoring program of the narrow-line Seyfert 1 galaxy Akn 564. The majority of this monitoring project was also covered by X-ray observations (RXTE) and for a period of ~50 days, we observed the galaxy in UV (HST) and X-rays (RXTE & ASCA) simultaneously with the ground-based observations. Rapid and large-amplitude variations seen in the X-ray band, on a daily and hourly time-scale, were not detected at optical and UV wavelengths, which in turn exhibited much lower variability either on short (one day) or long (several months) time-scales. The "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0107075","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0107075/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"astro-ph/0107075","created_at":"2026-07-04T16:23:39.356981+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0107075v1","created_at":"2026-07-04T16:23:39.356981+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0107075","created_at":"2026-07-04T16:23:39.356981+00:00"},{"alias_kind":"pith_short_12","alias_value":"FXRZEOJDCHMN","created_at":"2026-07-04T16:23:39.356981+00:00"},{"alias_kind":"pith_short_16","alias_value":"FXRZEOJDCHMNQ5BF","created_at":"2026-07-04T16:23:39.356981+00:00"},{"alias_kind":"pith_short_8","alias_value":"FXRZEOJD","created_at":"2026-07-04T16:23:39.356981+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/FXRZEOJDCHMNQ5BFPGL7GB6V4O","json":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O.json","graph_json":"https://pith.science/api/pith-number/FXRZEOJDCHMNQ5BFPGL7GB6V4O/graph.json","events_json":"https://pith.science/api/pith-number/FXRZEOJDCHMNQ5BFPGL7GB6V4O/events.json","paper":"https://pith.science/paper/FXRZEOJD"},"agent_actions":{"view_html":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O","download_json":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O.json","view_paper":"https://pith.science/paper/FXRZEOJD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0107075&json=true","fetch_graph":"https://pith.science/api/pith-number/FXRZEOJDCHMNQ5BFPGL7GB6V4O/graph.json","fetch_events":"https://pith.science/api/pith-number/FXRZEOJDCHMNQ5BFPGL7GB6V4O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O/action/storage_attestation","attest_author":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O/action/author_attestation","sign_citation":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O/action/citation_signature","submit_replication":"https://pith.science/pith/FXRZEOJDCHMNQ5BFPGL7GB6V4O/action/replication_record"}},"created_at":"2026-07-04T16:23:39.356981+00:00","updated_at":"2026-07-04T16:23:39.356981+00:00"}