{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:KPRSFM5AXCFDUVURHS2Q5QX57E","short_pith_number":"pith:KPRSFM5A","schema_version":"1.0","canonical_sha256":"53e322b3a0b88a3a56913cb50ec2fdf9367156abb125216d1950c22aed7b306f","source":{"kind":"arxiv","id":"0706.2613","version":1},"attestation_state":"computed","paper":{"title":"Probing micro-arcsec astrometry with NACO","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"((1) European Southern Observatory, 2), (2) Astrophysical Institute, Andreas Seifahrt (1, Garching, Germany, Germany), Ralph Neuhaeuser (2), Tristan Roell (2), University-Observatory Jena","submitted_at":"2007-06-18T14:46:38Z","abstract_excerpt":"Relative astrometric measurements with a precision far better than 1 mas (milli-arcsec) are commonly regarded as the domain of interferometry. Pioneering work by Pravdo & Shaklan (1996), made in the optical, reached a precision of 150 micro-arcsec in direct imaging but is ultimately limited by atmospheric turbulence and differential chromatic refraction (DCR) effects. Neuhaeuser et al. (2006, 2007) demonstrated that AO assisted observations with NACO in a near-infrared narrow band filter allow measurements with a precision of ~50 muas (micro-arsec) on a 0.6 arcsec binary within one hour and ar"},"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":"0706.2613","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T14:46:38Z","cross_cats_sorted":[],"title_canon_sha256":"9a922d7e749f261afe64c1f93ac7ee1a06472a72449334f646c1ddec7c840ead","abstract_canon_sha256":"f73c96cf1513a0605e50ce2befc699dc9f9b06e3fde3294c657a007795a5f7a1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:30.010421Z","signature_b64":"zAFgg/Kyrpx1/uISCASZbcZRa9KRXvZClVtp0K/MGwRA88rzOmq7E9CvDz34r4ElgGqDzMNxHcSSrcziyd+mDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"53e322b3a0b88a3a56913cb50ec2fdf9367156abb125216d1950c22aed7b306f","last_reissued_at":"2026-05-18T02:16:30.009761Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:30.009761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing micro-arcsec astrometry with NACO","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"((1) European Southern Observatory, 2), (2) Astrophysical Institute, Andreas Seifahrt (1, Garching, Germany, Germany), Ralph Neuhaeuser (2), Tristan Roell (2), University-Observatory Jena","submitted_at":"2007-06-18T14:46:38Z","abstract_excerpt":"Relative astrometric measurements with a precision far better than 1 mas (milli-arcsec) are commonly regarded as the domain of interferometry. Pioneering work by Pravdo & Shaklan (1996), made in the optical, reached a precision of 150 micro-arcsec in direct imaging but is ultimately limited by atmospheric turbulence and differential chromatic refraction (DCR) effects. Neuhaeuser et al. (2006, 2007) demonstrated that AO assisted observations with NACO in a near-infrared narrow band filter allow measurements with a precision of ~50 muas (micro-arsec) on a 0.6 arcsec binary within one hour and ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.2613","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":"0706.2613","created_at":"2026-05-18T02:16:30.009853+00:00"},{"alias_kind":"arxiv_version","alias_value":"0706.2613v1","created_at":"2026-05-18T02:16:30.009853+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.2613","created_at":"2026-05-18T02:16:30.009853+00:00"},{"alias_kind":"pith_short_12","alias_value":"KPRSFM5AXCFD","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"KPRSFM5AXCFDUVUR","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"KPRSFM5A","created_at":"2026-05-18T12:25:55.427421+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/KPRSFM5AXCFDUVURHS2Q5QX57E","json":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E.json","graph_json":"https://pith.science/api/pith-number/KPRSFM5AXCFDUVURHS2Q5QX57E/graph.json","events_json":"https://pith.science/api/pith-number/KPRSFM5AXCFDUVURHS2Q5QX57E/events.json","paper":"https://pith.science/paper/KPRSFM5A"},"agent_actions":{"view_html":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E","download_json":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E.json","view_paper":"https://pith.science/paper/KPRSFM5A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0706.2613&json=true","fetch_graph":"https://pith.science/api/pith-number/KPRSFM5AXCFDUVURHS2Q5QX57E/graph.json","fetch_events":"https://pith.science/api/pith-number/KPRSFM5AXCFDUVURHS2Q5QX57E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E/action/storage_attestation","attest_author":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E/action/author_attestation","sign_citation":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E/action/citation_signature","submit_replication":"https://pith.science/pith/KPRSFM5AXCFDUVURHS2Q5QX57E/action/replication_record"}},"created_at":"2026-05-18T02:16:30.009853+00:00","updated_at":"2026-05-18T02:16:30.009853+00:00"}