{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:2Q7RR3VJ2WHIIAE5E63GAOV7DT","short_pith_number":"pith:2Q7RR3VJ","schema_version":"1.0","canonical_sha256":"d43f18eea9d58e84009d27b6603abf1ccdb5d37b6440d014821513e4fa7c934f","source":{"kind":"arxiv","id":"1909.01408","version":1},"attestation_state":"computed","paper":{"title":"Extremely long baseline interferometry with Origins Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alexander Raymond, Daniel C. M. Palumbo, David J. James, Dominic W. Pesce, Gary J. Melnick, Jonathan Weintroub, Kari Haworth, Lindy Blackburn, Maciek Wielgus, Michael D. Johnson, Sheperd S. Doeleman","submitted_at":"2019-09-03T19:12:29Z","abstract_excerpt":"Operating 1.5 million km from Earth at the Sun-Earth L2 Lagrange point, the Origins Space Telescope equipped with a slightly modified version of its HERO heterodyne instrument could function as a uniquely valuable node in a VLBI network. The unprecedented angular resolution resulting from the combination of Origins with existing ground-based millimeter/submillimeter telescope arrays would increase the number of spatially resolvable black holes by a factor of a million, permit the study of these black holes across all of cosmic history, and enable new tests of general relativity by unveiling th"},"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":"1909.01408","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-09-03T19:12:29Z","cross_cats_sorted":[],"title_canon_sha256":"86bb303d0ddfb3307f69a20d36e7d19c79bb064b83b95f9976271b21b91a38e3","abstract_canon_sha256":"2d4cd0f02ecbc65f8fea132f53ebcc420a92fede2d3a71d8226e2bc2b091397f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:02:16.071532Z","signature_b64":"qE7Livpitbp9m35aNQTKqXMmdUqvY3ok+nBDqKvqW4hOT6B7I/nHERH/A9hH8wcme7IybsfP2acelkG++bxnBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d43f18eea9d58e84009d27b6603abf1ccdb5d37b6440d014821513e4fa7c934f","last_reissued_at":"2026-07-05T00:02:16.071018Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:02:16.071018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Extremely long baseline interferometry with Origins Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alexander Raymond, Daniel C. M. Palumbo, David J. James, Dominic W. Pesce, Gary J. Melnick, Jonathan Weintroub, Kari Haworth, Lindy Blackburn, Maciek Wielgus, Michael D. Johnson, Sheperd S. Doeleman","submitted_at":"2019-09-03T19:12:29Z","abstract_excerpt":"Operating 1.5 million km from Earth at the Sun-Earth L2 Lagrange point, the Origins Space Telescope equipped with a slightly modified version of its HERO heterodyne instrument could function as a uniquely valuable node in a VLBI network. The unprecedented angular resolution resulting from the combination of Origins with existing ground-based millimeter/submillimeter telescope arrays would increase the number of spatially resolvable black holes by a factor of a million, permit the study of these black holes across all of cosmic history, and enable new tests of general relativity by unveiling th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.01408","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/1909.01408/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":"1909.01408","created_at":"2026-07-05T00:02:16.071080+00:00"},{"alias_kind":"arxiv_version","alias_value":"1909.01408v1","created_at":"2026-07-05T00:02:16.071080+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.01408","created_at":"2026-07-05T00:02:16.071080+00:00"},{"alias_kind":"pith_short_12","alias_value":"2Q7RR3VJ2WHI","created_at":"2026-07-05T00:02:16.071080+00:00"},{"alias_kind":"pith_short_16","alias_value":"2Q7RR3VJ2WHIIAE5","created_at":"2026-07-05T00:02:16.071080+00:00"},{"alias_kind":"pith_short_8","alias_value":"2Q7RR3VJ","created_at":"2026-07-05T00:02:16.071080+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2601.01763","citing_title":"When the Shadow Meets Its Measure: Assessing the Feasibility of Submillimeter Black Hole Shadow Imaging in Megamaser Disk AGN","ref_index":84,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT","json":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT.json","graph_json":"https://pith.science/api/pith-number/2Q7RR3VJ2WHIIAE5E63GAOV7DT/graph.json","events_json":"https://pith.science/api/pith-number/2Q7RR3VJ2WHIIAE5E63GAOV7DT/events.json","paper":"https://pith.science/paper/2Q7RR3VJ"},"agent_actions":{"view_html":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT","download_json":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT.json","view_paper":"https://pith.science/paper/2Q7RR3VJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1909.01408&json=true","fetch_graph":"https://pith.science/api/pith-number/2Q7RR3VJ2WHIIAE5E63GAOV7DT/graph.json","fetch_events":"https://pith.science/api/pith-number/2Q7RR3VJ2WHIIAE5E63GAOV7DT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT/action/storage_attestation","attest_author":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT/action/author_attestation","sign_citation":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT/action/citation_signature","submit_replication":"https://pith.science/pith/2Q7RR3VJ2WHIIAE5E63GAOV7DT/action/replication_record"}},"created_at":"2026-07-05T00:02:16.071080+00:00","updated_at":"2026-07-05T00:02:16.071080+00:00"}