{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:E3GSDI2CX2YJTHQJTWNOODYQNO","short_pith_number":"pith:E3GSDI2C","schema_version":"1.0","canonical_sha256":"26cd21a342beb0999e099d9ae70f106b98cc59190c4522aaacf23ca792fb180c","source":{"kind":"arxiv","id":"2304.06482","version":6},"attestation_state":"computed","paper":{"title":"The Capella Program: Toward A Space-only High-frequency Radio VLBI Network Formed by Small Satellites in Low Earth Orbits","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Doohyon Baek, Jae-Hyun Kyeong, Jae-Young Kim, Jan Wagner, Jeffrey A. Hodgson, Jeong-Yeol Han, Jongho Park, Junghwan Oh, Jung-Won Lee, Sang-Sung Lee, Sascha Trippe, Taeho Kang, Taehyun Jung, Wonseok Kang","submitted_at":"2023-04-09T10:56:28Z","abstract_excerpt":"Very long baseline radio interferometry (VLBI) with ground-based observatories is limited by the size of Earth, the geographic distribution of antennas, and the transparency of the atmosphere. In this whitepaper, we present a design for a space-to-space VLBI program composed of two missions: Mimosa, a pathfinder, and Capella, a science-grade VLBI observatory. Mimosa is a two-element space-to-space radio interferometer composed of two small (250 kg) satellites on co-planar polar circular low Earth orbits. Using single-band, single-circular polarization heterodyne HEMT receivers operating at fre"},"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":"2304.06482","kind":"arxiv","version":6},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-04-09T10:56:28Z","cross_cats_sorted":[],"title_canon_sha256":"8b076f37c1180ed887dcc5cae065493735836398e7cd978c59ef8290ccfad763","abstract_canon_sha256":"d3d259c059cb4d67cc0091893d6eeacd101000b2ffebd5cf009f57c380270242"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:12:43.694136Z","signature_b64":"8WPXWrDrnPbmbBbMuHOY/gjwGBPF8+c09WzRjvUHgCjfNvjw1aQNofKOxIuTW726mtFOX4bJqhCkMwj8nQ1JAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26cd21a342beb0999e099d9ae70f106b98cc59190c4522aaacf23ca792fb180c","last_reissued_at":"2026-06-19T16:12:43.693660Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:12:43.693660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Capella Program: Toward A Space-only High-frequency Radio VLBI Network Formed by Small Satellites in Low Earth Orbits","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Doohyon Baek, Jae-Hyun Kyeong, Jae-Young Kim, Jan Wagner, Jeffrey A. Hodgson, Jeong-Yeol Han, Jongho Park, Junghwan Oh, Jung-Won Lee, Sang-Sung Lee, Sascha Trippe, Taeho Kang, Taehyun Jung, Wonseok Kang","submitted_at":"2023-04-09T10:56:28Z","abstract_excerpt":"Very long baseline radio interferometry (VLBI) with ground-based observatories is limited by the size of Earth, the geographic distribution of antennas, and the transparency of the atmosphere. In this whitepaper, we present a design for a space-to-space VLBI program composed of two missions: Mimosa, a pathfinder, and Capella, a science-grade VLBI observatory. Mimosa is a two-element space-to-space radio interferometer composed of two small (250 kg) satellites on co-planar polar circular low Earth orbits. Using single-band, single-circular polarization heterodyne HEMT receivers operating at fre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.06482","kind":"arxiv","version":6},"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/2304.06482/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":"2304.06482","created_at":"2026-06-19T16:12:43.693719+00:00"},{"alias_kind":"arxiv_version","alias_value":"2304.06482v6","created_at":"2026-06-19T16:12:43.693719+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.06482","created_at":"2026-06-19T16:12:43.693719+00:00"},{"alias_kind":"pith_short_12","alias_value":"E3GSDI2CX2YJ","created_at":"2026-06-19T16:12:43.693719+00:00"},{"alias_kind":"pith_short_16","alias_value":"E3GSDI2CX2YJTHQJ","created_at":"2026-06-19T16:12:43.693719+00:00"},{"alias_kind":"pith_short_8","alias_value":"E3GSDI2C","created_at":"2026-06-19T16:12:43.693719+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.25137","citing_title":"Unique Science Opportunities for Space VLBI Systems with the SKA Telescopes","ref_index":61,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO","json":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO.json","graph_json":"https://pith.science/api/pith-number/E3GSDI2CX2YJTHQJTWNOODYQNO/graph.json","events_json":"https://pith.science/api/pith-number/E3GSDI2CX2YJTHQJTWNOODYQNO/events.json","paper":"https://pith.science/paper/E3GSDI2C"},"agent_actions":{"view_html":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO","download_json":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO.json","view_paper":"https://pith.science/paper/E3GSDI2C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2304.06482&json=true","fetch_graph":"https://pith.science/api/pith-number/E3GSDI2CX2YJTHQJTWNOODYQNO/graph.json","fetch_events":"https://pith.science/api/pith-number/E3GSDI2CX2YJTHQJTWNOODYQNO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO/action/storage_attestation","attest_author":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO/action/author_attestation","sign_citation":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO/action/citation_signature","submit_replication":"https://pith.science/pith/E3GSDI2CX2YJTHQJTWNOODYQNO/action/replication_record"}},"created_at":"2026-06-19T16:12:43.693719+00:00","updated_at":"2026-06-19T16:12:43.693719+00:00"}