{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3Z5QF77TU7IFLEIQIWS5HZC6JJ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"8f5f37f3131f655ef14ed1c3ad95bfeef3de6403593a48812e57ca90afdee83e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-05-23T07:44:52Z","title_canon_sha256":"b73289825675064cef8d963d8e640ce3b9f43a99fa7c1956d16e684cb8722e00"},"schema_version":"1.0","source":{"id":"1705.08109","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08109","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08109v1","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08109","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"pith_short_12","alias_value":"3Z5QF77TU7IF","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3Z5QF77TU7IFLEIQ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3Z5QF77T","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:d899ae8652336bb0800e40bd36a169b17be9f366e59a9eff2221356529c5cb98","target":"graph","created_at":"2026-05-18T00:33:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Radio interferometry most commonly involves antennas or antenna arrays of identical design. The identical antenna assumption leads to a convenient and useful mathematical simplification resulting in a scalar problem. An interesting variant to this is a \"hybrid\" interferometer involving two designs. We encounter this in the characterization of low-frequency antenna/array prototypes using a homogenous low-frequency array telescope such as the Murchison Widefield Array (MWA). In this work, we present an interferometry equation that applies to hybrid antennas. The resulting equation involves vecto","authors_text":"Adrian T. Sutinjo, Daniel Ung, Eloy de Lera Acedo, Peter J. Hall, Randall B. Wayth, Tim M. Colegate","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-05-23T07:44:52Z","title":"Revisiting Hybrid Interferometry with Low-Frequency Radio Astronomy Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08109","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:234211074c7bbe65e34844be9da31268b260a7d293473911febae394b35445fa","target":"record","created_at":"2026-05-18T00:33:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"8f5f37f3131f655ef14ed1c3ad95bfeef3de6403593a48812e57ca90afdee83e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-05-23T07:44:52Z","title_canon_sha256":"b73289825675064cef8d963d8e640ce3b9f43a99fa7c1956d16e684cb8722e00"},"schema_version":"1.0","source":{"id":"1705.08109","kind":"arxiv","version":1}},"canonical_sha256":"de7b02fff3a7d055911045a5d3e45e4a72ba74a9ac1e2ee310235d4433cea318","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de7b02fff3a7d055911045a5d3e45e4a72ba74a9ac1e2ee310235d4433cea318","first_computed_at":"2026-05-18T00:33:18.013566Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:18.013566Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TE+nv2MFCQAL6ANj0wz5fQbMLiz1OET6FwXchyFDttjwyekGzSt2AcJrgfk9vz0L9HqfLBRmp55x8cLpPc3DAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:18.014426Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.08109","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:234211074c7bbe65e34844be9da31268b260a7d293473911febae394b35445fa","sha256:d899ae8652336bb0800e40bd36a169b17be9f366e59a9eff2221356529c5cb98"],"state_sha256":"435eed4953d2bfc09a8292361020c1d7924e937043ce27518d21294639e10465"}