{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:XY33ZZLKSD2KUD73IBFQBCFNSK","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":"f24788a10fa27c8b8fc3013be0e92ea93f282107561475741c3a0358703dc19c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-08T13:01:50Z","title_canon_sha256":"6b029bd939325c685a85512a18de4f161ed84102bc97c9f9714b32009ad6ad5d"},"schema_version":"1.0","source":{"id":"astro-ph/0606193","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0606193","created_at":"2026-07-04T16:58:50Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0606193v1","created_at":"2026-07-04T16:58:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0606193","created_at":"2026-07-04T16:58:50Z"},{"alias_kind":"pith_short_12","alias_value":"XY33ZZLKSD2K","created_at":"2026-07-04T16:58:50Z"},{"alias_kind":"pith_short_16","alias_value":"XY33ZZLKSD2KUD73","created_at":"2026-07-04T16:58:50Z"},{"alias_kind":"pith_short_8","alias_value":"XY33ZZLK","created_at":"2026-07-04T16:58:50Z"}],"graph_snapshots":[{"event_id":"sha256:7f6cd53101097206093fb688c828ab1b253b7ffbf422cd3390358abcdf65f708","target":"graph","created_at":"2026-07-04T16:58:50Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0606193/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The U.S. Naval Observatory Robotic Astrometric Telescope (URAT) project aims at a highly accurate (5 mas), ground-based, all-sky survey. Requirements are presented for the optics and telescope for this 0.85 m aperture, 4.5 degree diameter field-of-view, specialized instrument, which are close to the capability of the industry. The history of the design process is presented as well as astrometric performance evaluations of the toleranced, optical design, with expected wavefront errors included.","authors_text":"A. Rakich (EOST), H. Epps (UCSC), N. Zacharias (USNO), U. Laux (Tautenburg)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-06-08T13:01:50Z","title":"URAT: astrometric requirements and design history"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0606193","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":"sha256:30739d30ce9ab969f497df2f0f1d2eec6ce563fa6f6e431b8a1b9407468a9fe5","target":"record","created_at":"2026-07-04T16:58:50Z","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":"f24788a10fa27c8b8fc3013be0e92ea93f282107561475741c3a0358703dc19c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-08T13:01:50Z","title_canon_sha256":"6b029bd939325c685a85512a18de4f161ed84102bc97c9f9714b32009ad6ad5d"},"schema_version":"1.0","source":{"id":"astro-ph/0606193","kind":"arxiv","version":1}},"canonical_sha256":"be37bce56a90f4aa0ffb404b0088ad928257052ea97b430846527c74a875b86d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be37bce56a90f4aa0ffb404b0088ad928257052ea97b430846527c74a875b86d","first_computed_at":"2026-07-04T16:58:50.993418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:58:50.993418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JYLdn4XWLhYQgiEjl/jwkPw75bEuE/5nUpISQyQMlFUPK0WYM0BpPjGMidAU7+n7wztEQemfHS9z8Jy8U8rYBw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:58:50.993805Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0606193","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30739d30ce9ab969f497df2f0f1d2eec6ce563fa6f6e431b8a1b9407468a9fe5","sha256:7f6cd53101097206093fb688c828ab1b253b7ffbf422cd3390358abcdf65f708"],"state_sha256":"8482a5d169f14dc358ad27bee46d65af1bce1d3bdd589361e37e9f1beb54ea4b"}