{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:IRYWFQQFCSCUBMMMDR3Z4XNEQJ","short_pith_number":"pith:IRYWFQQF","schema_version":"1.0","canonical_sha256":"447162c205148540b18c1c779e5da48252c1ffe97d20a7d1253aa93fd11e4a61","source":{"kind":"arxiv","id":"1705.10084","version":2},"attestation_state":"computed","paper":{"title":"Main Beam Modeling for Large Irregular Arrays: The SKA1-LOW telescope case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Christophe Craeye, Eloy de Lera Acedo, Ha Bui-Van","submitted_at":"2017-05-29T09:15:52Z","abstract_excerpt":"Large radio telescopes in the 21st century such as the Low-Frequency Array (LOFAR) or the Murchison Widefield Array (MWA) make use of phased aperture arrays of antennas to achieve superb survey speeds. The Square Kilometer Array low frequency instrument (SKA1-LOW) will consist of a collection of non-regular phased array systems. The prediction of the main beam of these arrays using a few coefficients is crucial for the calibration of the telescope. An effective approach to model the main beam and first few sidelobes for large non-regular arrays is presented. The approach exploits Zernike polyn"},"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":"1705.10084","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-05-29T09:15:52Z","cross_cats_sorted":[],"title_canon_sha256":"d45ce206395130428a01ee8c588169755e7b760fdc86bce5ca13032e313568b0","abstract_canon_sha256":"55cbcc73448caaa772c0254eb66c6aabba944560ffd2112c78e3e01844ec5e74"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:55.557355Z","signature_b64":"IEl0EYeS3ryP5m/duJ82W0T1YX8n18/TTLVMBoiKe5c54l4jHMPOXL6tt23OCnN7fb3/kzihIQBvoJf6ZMvsAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"447162c205148540b18c1c779e5da48252c1ffe97d20a7d1253aa93fd11e4a61","last_reissued_at":"2026-05-18T00:28:55.556788Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:55.556788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Main Beam Modeling for Large Irregular Arrays: The SKA1-LOW telescope case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Christophe Craeye, Eloy de Lera Acedo, Ha Bui-Van","submitted_at":"2017-05-29T09:15:52Z","abstract_excerpt":"Large radio telescopes in the 21st century such as the Low-Frequency Array (LOFAR) or the Murchison Widefield Array (MWA) make use of phased aperture arrays of antennas to achieve superb survey speeds. The Square Kilometer Array low frequency instrument (SKA1-LOW) will consist of a collection of non-regular phased array systems. The prediction of the main beam of these arrays using a few coefficients is crucial for the calibration of the telescope. An effective approach to model the main beam and first few sidelobes for large non-regular arrays is presented. The approach exploits Zernike polyn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.10084","kind":"arxiv","version":2},"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":"1705.10084","created_at":"2026-05-18T00:28:55.556854+00:00"},{"alias_kind":"arxiv_version","alias_value":"1705.10084v2","created_at":"2026-05-18T00:28:55.556854+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.10084","created_at":"2026-05-18T00:28:55.556854+00:00"},{"alias_kind":"pith_short_12","alias_value":"IRYWFQQFCSCU","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_16","alias_value":"IRYWFQQFCSCUBMMM","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_8","alias_value":"IRYWFQQF","created_at":"2026-05-18T12:31:21.493067+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/IRYWFQQFCSCUBMMMDR3Z4XNEQJ","json":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ.json","graph_json":"https://pith.science/api/pith-number/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/graph.json","events_json":"https://pith.science/api/pith-number/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/events.json","paper":"https://pith.science/paper/IRYWFQQF"},"agent_actions":{"view_html":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ","download_json":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ.json","view_paper":"https://pith.science/paper/IRYWFQQF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1705.10084&json=true","fetch_graph":"https://pith.science/api/pith-number/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/graph.json","fetch_events":"https://pith.science/api/pith-number/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/action/storage_attestation","attest_author":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/action/author_attestation","sign_citation":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/action/citation_signature","submit_replication":"https://pith.science/pith/IRYWFQQFCSCUBMMMDR3Z4XNEQJ/action/replication_record"}},"created_at":"2026-05-18T00:28:55.556854+00:00","updated_at":"2026-05-18T00:28:55.556854+00:00"}