{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:SWQRQJFD43DLWN3O4EH7JPPJBM","short_pith_number":"pith:SWQRQJFD","schema_version":"1.0","canonical_sha256":"95a11824a3e6c6bb376ee10ff4bde90b29c11b50c9bca7209bb0345d3bbdf780","source":{"kind":"arxiv","id":"2110.03217","version":1},"attestation_state":"computed","paper":{"title":"The Aperture Array Verification System 1: System overview and early commissioning results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. DeMarco, A. Faulkner, A. Magro, A. Mattana, A. Sutinjo, A. van Es, A. Williams, B. Crosse, B. Juswardy, B. McKinley, C. Belli, D. Davidson, D. Emrich, D. Fierro, D. Kenney, D. Ung, E. de Lera Acedo, F. Paonessa, F. Perini, F. Schillir\\`o, G. Comoretto, G. Naldi, G. Pupillo, G. Tartarini, G. Virone, H.Schnetler, J.Borg, J. G. Bij de Vaate, J. Monari, J. Nanni, J. W. Broderick, K. Steele, K. Zarb Adami, L. Ciani, L.Horsley, M. Alderighi, M. Gerbers, M. Poloni, M. Schiaffino, M. Sokolowski, M.Walker, M. Waterson, N. Razavi-Ghods, P. Benthem, P. Bolli, P. Di Ninni, P. Hall, R. Chiello, R. Singuaroli, R. Wayth, S. Chiarucci, S. J. Wijnholds, S. Rusticelli, T. Booler","submitted_at":"2021-10-07T07:02:24Z","abstract_excerpt":"The design and development process for the Square Kilometre Array (SKA) radio telescope, the Low Frequency Aperture Array component, was progressed during the SKA pre-construction phase by an international consortium, with the goal of meeting requirements for a critical design review. As part of the development process a full-sized prototype SKA Low station was deployed, the Aperture Array Verification System 1 (AAVS1). We provide a system overview and describe the commissioning results of AAVS1, which is a low frequency radio telescope with 256 dual-polarisation log-periodic dipole antennas w"},"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":"2110.03217","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-10-07T07:02:24Z","cross_cats_sorted":[],"title_canon_sha256":"7e14f2328ec12dfacfa7d255d80362d7054b6e33819bc34e23a7bca44cbc0bb4","abstract_canon_sha256":"c1e11c1cc22dc7a8749f0cd59d2a5f83b238cd01b4986e0761d13147573059f5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:28:27.466040Z","signature_b64":"hi1P6Cv30/x/HOWU+EoQW1Blcozh5iTfpm9fRtqSsCqrlR0XGnXqxiefbAwPc+OD4PNxo/HgG8gozEqfwyLlAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95a11824a3e6c6bb376ee10ff4bde90b29c11b50c9bca7209bb0345d3bbdf780","last_reissued_at":"2026-07-05T03:28:27.465528Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:28:27.465528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Aperture Array Verification System 1: System overview and early commissioning results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. DeMarco, A. Faulkner, A. Magro, A. Mattana, A. Sutinjo, A. van Es, A. Williams, B. Crosse, B. Juswardy, B. McKinley, C. Belli, D. Davidson, D. Emrich, D. Fierro, D. Kenney, D. Ung, E. de Lera Acedo, F. Paonessa, F. Perini, F. Schillir\\`o, G. Comoretto, G. Naldi, G. Pupillo, G. Tartarini, G. Virone, H.Schnetler, J.Borg, J. G. Bij de Vaate, J. Monari, J. Nanni, J. W. Broderick, K. Steele, K. Zarb Adami, L. Ciani, L.Horsley, M. Alderighi, M. Gerbers, M. Poloni, M. Schiaffino, M. Sokolowski, M.Walker, M. Waterson, N. Razavi-Ghods, P. Benthem, P. Bolli, P. Di Ninni, P. Hall, R. Chiello, R. Singuaroli, R. Wayth, S. Chiarucci, S. J. Wijnholds, S. Rusticelli, T. Booler","submitted_at":"2021-10-07T07:02:24Z","abstract_excerpt":"The design and development process for the Square Kilometre Array (SKA) radio telescope, the Low Frequency Aperture Array component, was progressed during the SKA pre-construction phase by an international consortium, with the goal of meeting requirements for a critical design review. As part of the development process a full-sized prototype SKA Low station was deployed, the Aperture Array Verification System 1 (AAVS1). We provide a system overview and describe the commissioning results of AAVS1, which is a low frequency radio telescope with 256 dual-polarisation log-periodic dipole antennas w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.03217","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/2110.03217/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":"2110.03217","created_at":"2026-07-05T03:28:27.465588+00:00"},{"alias_kind":"arxiv_version","alias_value":"2110.03217v1","created_at":"2026-07-05T03:28:27.465588+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.03217","created_at":"2026-07-05T03:28:27.465588+00:00"},{"alias_kind":"pith_short_12","alias_value":"SWQRQJFD43DL","created_at":"2026-07-05T03:28:27.465588+00:00"},{"alias_kind":"pith_short_16","alias_value":"SWQRQJFD43DLWN3O","created_at":"2026-07-05T03:28:27.465588+00:00"},{"alias_kind":"pith_short_8","alias_value":"SWQRQJFD","created_at":"2026-07-05T03:28:27.465588+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.14483","citing_title":"Enhanced detection and identification of satellites using an all-sky multi-frequency survey with prototype SKA-Low stations","ref_index":2021,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM","json":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM.json","graph_json":"https://pith.science/api/pith-number/SWQRQJFD43DLWN3O4EH7JPPJBM/graph.json","events_json":"https://pith.science/api/pith-number/SWQRQJFD43DLWN3O4EH7JPPJBM/events.json","paper":"https://pith.science/paper/SWQRQJFD"},"agent_actions":{"view_html":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM","download_json":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM.json","view_paper":"https://pith.science/paper/SWQRQJFD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2110.03217&json=true","fetch_graph":"https://pith.science/api/pith-number/SWQRQJFD43DLWN3O4EH7JPPJBM/graph.json","fetch_events":"https://pith.science/api/pith-number/SWQRQJFD43DLWN3O4EH7JPPJBM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM/action/storage_attestation","attest_author":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM/action/author_attestation","sign_citation":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM/action/citation_signature","submit_replication":"https://pith.science/pith/SWQRQJFD43DLWN3O4EH7JPPJBM/action/replication_record"}},"created_at":"2026-07-05T03:28:27.465588+00:00","updated_at":"2026-07-05T03:28:27.465588+00:00"}