{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:4YOZBHU34FM7VVXTNM5IV6RX4V","short_pith_number":"pith:4YOZBHU3","schema_version":"1.0","canonical_sha256":"e61d909e9be159fad6f36b3a8afa37e573e588c04e20d8833b566acfe05444de","source":{"kind":"arxiv","id":"2607.19585","version":1},"attestation_state":"computed","paper":{"title":"Characterising the response of an International LOFAR Station","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"David J. McKenna, Evan F. Keane, Gavin Ramsay, Joe McCauley, Letizia Vincetti, Oisin Creaner, Owen A. Johnson, Peter T. Gallagher, Sai C. Susarla, Tobia D. Carozzi","submitted_at":"2026-07-21T21:26:53Z","abstract_excerpt":"Phased-array radio interferometers with fixed antennas are a highly scalable design which can achieve a large gain. However they are complex systems and challenging to calibrate. Here we examine the response of an International LOFAR Station, the high-band antennas of the Irish LOFAR station. In modelling our measured responses, we account for projection effects, the frequency-dependence of the aperture efficiency and pulsar spectra, as well as sky and instrumental noise contributions. We perform long-track observations of 11 bright pulsars as they move across the sky, apply RFI mitigation and"},"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":"2607.19585","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-21T21:26:53Z","cross_cats_sorted":[],"title_canon_sha256":"94e58ac4ca3deb22a11a2716fa80b4403f349376096fca158232670bdeabe06b","abstract_canon_sha256":"a5389168528cc7121c7304455d447c5c82663351d9532b7746041fc2bf3f6fe3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-23T00:23:57.745827Z","signature_b64":"JrmzbUr1zWT3h9wOOgYpiU2FsfWcNHpelAk+P67qpHwTlxLYDlgpSQK0wzoBD0mhWkqlmGnj9Rt+wtYyHoqbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e61d909e9be159fad6f36b3a8afa37e573e588c04e20d8833b566acfe05444de","last_reissued_at":"2026-07-23T00:23:57.744420Z","signature_status":"signed_v1","first_computed_at":"2026-07-23T00:23:57.744420Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Characterising the response of an International LOFAR Station","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"David J. McKenna, Evan F. Keane, Gavin Ramsay, Joe McCauley, Letizia Vincetti, Oisin Creaner, Owen A. Johnson, Peter T. Gallagher, Sai C. Susarla, Tobia D. Carozzi","submitted_at":"2026-07-21T21:26:53Z","abstract_excerpt":"Phased-array radio interferometers with fixed antennas are a highly scalable design which can achieve a large gain. However they are complex systems and challenging to calibrate. Here we examine the response of an International LOFAR Station, the high-band antennas of the Irish LOFAR station. In modelling our measured responses, we account for projection effects, the frequency-dependence of the aperture efficiency and pulsar spectra, as well as sky and instrumental noise contributions. We perform long-track observations of 11 bright pulsars as they move across the sky, apply RFI mitigation and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.19585","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/2607.19585/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":"2607.19585","created_at":"2026-07-23T00:23:57.745242+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.19585v1","created_at":"2026-07-23T00:23:57.745242+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.19585","created_at":"2026-07-23T00:23:57.745242+00:00"},{"alias_kind":"pith_short_12","alias_value":"4YOZBHU34FM7","created_at":"2026-07-23T00:23:57.745242+00:00"},{"alias_kind":"pith_short_16","alias_value":"4YOZBHU34FM7VVXT","created_at":"2026-07-23T00:23:57.745242+00:00"},{"alias_kind":"pith_short_8","alias_value":"4YOZBHU3","created_at":"2026-07-23T00:23:57.745242+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/4YOZBHU34FM7VVXTNM5IV6RX4V","json":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V.json","graph_json":"https://pith.science/api/pith-number/4YOZBHU34FM7VVXTNM5IV6RX4V/graph.json","events_json":"https://pith.science/api/pith-number/4YOZBHU34FM7VVXTNM5IV6RX4V/events.json","paper":"https://pith.science/paper/4YOZBHU3"},"agent_actions":{"view_html":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V","download_json":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V.json","view_paper":"https://pith.science/paper/4YOZBHU3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.19585&json=true","fetch_graph":"https://pith.science/api/pith-number/4YOZBHU34FM7VVXTNM5IV6RX4V/graph.json","fetch_events":"https://pith.science/api/pith-number/4YOZBHU34FM7VVXTNM5IV6RX4V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V/action/storage_attestation","attest_author":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V/action/author_attestation","sign_citation":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V/action/citation_signature","submit_replication":"https://pith.science/pith/4YOZBHU34FM7VVXTNM5IV6RX4V/action/replication_record"}},"created_at":"2026-07-23T00:23:57.745242+00:00","updated_at":"2026-07-23T00:23:57.745242+00:00"}