{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3L2O3TMVGDGPEKMRSI35J4FRPG","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":"4d4f699a5c0dd995095e6f7ceef2072f3a75bc88cf11a44ffdd2b30ba9f273dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-17T20:00:01Z","title_canon_sha256":"1567c97b3a36f81ef26dfe74a4bec435ff72032550ac0df22e7b833d5c5e8cbb"},"schema_version":"1.0","source":{"id":"1403.4241","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4241","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4241v2","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4241","created_at":"2026-05-18T01:44:00Z"},{"alias_kind":"pith_short_12","alias_value":"3L2O3TMVGDGP","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3L2O3TMVGDGPEKMR","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3L2O3TMV","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:c001fd6d4986812928733f8d8656313a36e5462589d0d840fe09104513a2102e","target":"graph","created_at":"2026-05-18T01:44:00Z","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":"I show that the WFIRST microlensing survey will enable detection and precision orbit determination of Kuiper Belt Objects (KBOs) down to H_=28.2 over an effective area of about 17 sq.deg. Typical fractional period errors will be about 1.5% x 10^(0.4(H-28.2)) with similar errors in other parameters for roughly 5000 KBOs. Binary companions to detected KBOs can be detected to even fainter limits, H_vega=29, corresponding to $R\\sim 30.5$ and effective diameters D~7 km. For KBOs H~23, binary companions can be found with separations down to 10 mas. This will provide an unprecedented probe of orbital","authors_text":"Andrew Gould (OSU)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-17T20:00:01Z","title":"WFIRST Ultra-Precise Astrometry I: Kuiper Belt Objects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4241","kind":"arxiv","version":2},"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":"sha256:4b5a3ddb248a7090a4e4f7a14d9b192de897659ae19e3de0bc1de70882259aef","target":"record","created_at":"2026-05-18T01:44:00Z","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":"4d4f699a5c0dd995095e6f7ceef2072f3a75bc88cf11a44ffdd2b30ba9f273dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-03-17T20:00:01Z","title_canon_sha256":"1567c97b3a36f81ef26dfe74a4bec435ff72032550ac0df22e7b833d5c5e8cbb"},"schema_version":"1.0","source":{"id":"1403.4241","kind":"arxiv","version":2}},"canonical_sha256":"daf4edcd9530ccf229919237d4f0b179adc3862cd032ba0815c11869470a1eda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daf4edcd9530ccf229919237d4f0b179adc3862cd032ba0815c11869470a1eda","first_computed_at":"2026-05-18T01:44:00.341931Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:00.341931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QrPZDnXRuP2MqQmZKWOUm9iqBc9cHbK+6cjTr8LptZgyxC+jUAl0E94OPdHXnhHSmMm16ogG6Yx01wM4JZplCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:00.342576Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4241","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b5a3ddb248a7090a4e4f7a14d9b192de897659ae19e3de0bc1de70882259aef","sha256:c001fd6d4986812928733f8d8656313a36e5462589d0d840fe09104513a2102e"],"state_sha256":"927e0a6c26ce05cb4c4bed302c1eee5ffa0bc66fc57bcc052d4db4eaf9058693"}