{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:AIAZDBIK4EDYNIDNE2EWIBCQ5S","short_pith_number":"pith:AIAZDBIK","schema_version":"1.0","canonical_sha256":"020191850ae10786a06d2689640450eca81be45871249b9e5294dccecfbae15d","source":{"kind":"arxiv","id":"1506.05853","version":1},"attestation_state":"computed","paper":{"title":"Bright Star Astrometry with URAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Norbert Zacharias","submitted_at":"2015-06-18T23:54:44Z","abstract_excerpt":"The U.S. Naval Observatory Robotic Astrometric Telescope (URAT) is observing the northern sky since April 2012 for an astrometric survey. Multiple overlaps per year are performed in a single bandpass (680$-$750 nm) using the \"redlens\" 20 cm aperture astrograph and a mosaic of large CCDs. Besides the regular, deep survey to magnitude 18.5, short exposures with an objective grating are taken to access stars as bright as 3rd magnitude. A brief overview of the program, observing and reductions is given. Positions on the 8 to 20 mas level are obtained of 66,202 Hipparcos stars at current epochs. 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":"1506.05853","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-06-18T23:54:44Z","cross_cats_sorted":[],"title_canon_sha256":"3008bfef3aea7e30347e8923ebafc6688453a5b87620d8da7a775ef9a4f71fbe","abstract_canon_sha256":"9076350fae41bc84407cb6e0269d0e3de9e6d54c730304cbd245fefec04c771b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:47.116984Z","signature_b64":"ARShJbjcTjWCyycIbcTeOC/XmCZ8KhzGhjOo3RD5mAfubYfHBpn/2ZDxnNM3cfJ/8v37DGT70Nd285jommWWBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"020191850ae10786a06d2689640450eca81be45871249b9e5294dccecfbae15d","last_reissued_at":"2026-05-18T01:42:47.116179Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:47.116179Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bright Star Astrometry with URAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Norbert Zacharias","submitted_at":"2015-06-18T23:54:44Z","abstract_excerpt":"The U.S. Naval Observatory Robotic Astrometric Telescope (URAT) is observing the northern sky since April 2012 for an astrometric survey. Multiple overlaps per year are performed in a single bandpass (680$-$750 nm) using the \"redlens\" 20 cm aperture astrograph and a mosaic of large CCDs. Besides the regular, deep survey to magnitude 18.5, short exposures with an objective grating are taken to access stars as bright as 3rd magnitude. A brief overview of the program, observing and reductions is given. Positions on the 8 to 20 mas level are obtained of 66,202 Hipparcos stars at current epochs. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.05853","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":""},"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":"1506.05853","created_at":"2026-05-18T01:42:47.116302+00:00"},{"alias_kind":"arxiv_version","alias_value":"1506.05853v1","created_at":"2026-05-18T01:42:47.116302+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.05853","created_at":"2026-05-18T01:42:47.116302+00:00"},{"alias_kind":"pith_short_12","alias_value":"AIAZDBIK4EDY","created_at":"2026-05-18T12:29:10.953037+00:00"},{"alias_kind":"pith_short_16","alias_value":"AIAZDBIK4EDYNIDN","created_at":"2026-05-18T12:29:10.953037+00:00"},{"alias_kind":"pith_short_8","alias_value":"AIAZDBIK","created_at":"2026-05-18T12:29:10.953037+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/AIAZDBIK4EDYNIDNE2EWIBCQ5S","json":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S.json","graph_json":"https://pith.science/api/pith-number/AIAZDBIK4EDYNIDNE2EWIBCQ5S/graph.json","events_json":"https://pith.science/api/pith-number/AIAZDBIK4EDYNIDNE2EWIBCQ5S/events.json","paper":"https://pith.science/paper/AIAZDBIK"},"agent_actions":{"view_html":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S","download_json":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S.json","view_paper":"https://pith.science/paper/AIAZDBIK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1506.05853&json=true","fetch_graph":"https://pith.science/api/pith-number/AIAZDBIK4EDYNIDNE2EWIBCQ5S/graph.json","fetch_events":"https://pith.science/api/pith-number/AIAZDBIK4EDYNIDNE2EWIBCQ5S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S/action/storage_attestation","attest_author":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S/action/author_attestation","sign_citation":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S/action/citation_signature","submit_replication":"https://pith.science/pith/AIAZDBIK4EDYNIDNE2EWIBCQ5S/action/replication_record"}},"created_at":"2026-05-18T01:42:47.116302+00:00","updated_at":"2026-05-18T01:42:47.116302+00:00"}