{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:ACFDH6G7AJ7U5HHPM5BH7U5UUX","short_pith_number":"pith:ACFDH6G7","schema_version":"1.0","canonical_sha256":"008a33f8df027f4e9cef67427fd3b4a5d29e0027babaf870fcd39e4ea52063f5","source":{"kind":"arxiv","id":"1901.05860","version":1},"attestation_state":"computed","paper":{"title":"Optimizing the accuracy and efficiency of optical turbulence profiling using adaptive optics telemetry for extremely large telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alastair G Basden, Andrew P Reeves, Douglas J Laidlaw, Eric Gendron, G\\'erard Rousset, James Osborn, Matthew J Townson, Olivier Beltramo-Martin, Richard W Wilson, Timothy Butterley, Timothy J Morris","submitted_at":"2019-01-17T16:07:10Z","abstract_excerpt":"Advanced adaptive optics (AO) instruments on ground-based telescopes require accurate knowledge of the atmospheric turbulence strength as a function of altitude. This information assists point spread function reconstruction, AO temporal control techniques and is required by wide-field AO systems to optimize the reconstruction of an observed wavefront. The variability of the atmosphere makes it important to have a measure of the optical turbulence profile in real time. This measurement can be performed by fitting an analytically generated covariance matrix to the cross-covariance of Shack-Hartm"},"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":"1901.05860","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-17T16:07:10Z","cross_cats_sorted":[],"title_canon_sha256":"e4a9b0f817a7fe0f2dd0b2733f99f8890af42a7c7d25fd24a58bb7c8656de842","abstract_canon_sha256":"f7f47e8c1d6ca9d7ef29408df18cf10ef362ed89b6fff1cea6541f4a1f54d2d4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:05.973696Z","signature_b64":"I6C7z2m0UHaba2VmSD+GAqMbRtdup8YH/0g8Yn5PrkH9Hyixxsdcyl/4k3ZPdd4YmsQoMRUrcebt8e5r3+bKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"008a33f8df027f4e9cef67427fd3b4a5d29e0027babaf870fcd39e4ea52063f5","last_reissued_at":"2026-05-17T23:56:05.973112Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:05.973112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optimizing the accuracy and efficiency of optical turbulence profiling using adaptive optics telemetry for extremely large telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alastair G Basden, Andrew P Reeves, Douglas J Laidlaw, Eric Gendron, G\\'erard Rousset, James Osborn, Matthew J Townson, Olivier Beltramo-Martin, Richard W Wilson, Timothy Butterley, Timothy J Morris","submitted_at":"2019-01-17T16:07:10Z","abstract_excerpt":"Advanced adaptive optics (AO) instruments on ground-based telescopes require accurate knowledge of the atmospheric turbulence strength as a function of altitude. This information assists point spread function reconstruction, AO temporal control techniques and is required by wide-field AO systems to optimize the reconstruction of an observed wavefront. The variability of the atmosphere makes it important to have a measure of the optical turbulence profile in real time. This measurement can be performed by fitting an analytically generated covariance matrix to the cross-covariance of Shack-Hartm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.05860","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":"1901.05860","created_at":"2026-05-17T23:56:05.973192+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.05860v1","created_at":"2026-05-17T23:56:05.973192+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.05860","created_at":"2026-05-17T23:56:05.973192+00:00"},{"alias_kind":"pith_short_12","alias_value":"ACFDH6G7AJ7U","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_16","alias_value":"ACFDH6G7AJ7U5HHP","created_at":"2026-05-18T12:33:12.712433+00:00"},{"alias_kind":"pith_short_8","alias_value":"ACFDH6G7","created_at":"2026-05-18T12:33:12.712433+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/ACFDH6G7AJ7U5HHPM5BH7U5UUX","json":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX.json","graph_json":"https://pith.science/api/pith-number/ACFDH6G7AJ7U5HHPM5BH7U5UUX/graph.json","events_json":"https://pith.science/api/pith-number/ACFDH6G7AJ7U5HHPM5BH7U5UUX/events.json","paper":"https://pith.science/paper/ACFDH6G7"},"agent_actions":{"view_html":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX","download_json":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX.json","view_paper":"https://pith.science/paper/ACFDH6G7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.05860&json=true","fetch_graph":"https://pith.science/api/pith-number/ACFDH6G7AJ7U5HHPM5BH7U5UUX/graph.json","fetch_events":"https://pith.science/api/pith-number/ACFDH6G7AJ7U5HHPM5BH7U5UUX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX/action/storage_attestation","attest_author":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX/action/author_attestation","sign_citation":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX/action/citation_signature","submit_replication":"https://pith.science/pith/ACFDH6G7AJ7U5HHPM5BH7U5UUX/action/replication_record"}},"created_at":"2026-05-17T23:56:05.973192+00:00","updated_at":"2026-05-17T23:56:05.973192+00:00"}