{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:67BDXHWJ3F3WRFGJJTWXW7BU65","short_pith_number":"pith:67BDXHWJ","schema_version":"1.0","canonical_sha256":"f7c23b9ec9d9776894c94ced7b7c34f77e81ac417f40c461ee96d001e4bb8928","source":{"kind":"arxiv","id":"0911.1310","version":1},"attestation_state":"computed","paper":{"title":"High Sensitivity Wavefront Sensing with a non-linear Curvature Wavefront Sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"2) ((1) Subaru Telescope/NAOJ, (2) University of Arizona), Olivier Guyon (1","submitted_at":"2009-11-06T17:37:34Z","abstract_excerpt":"A new wavefront sensing approach, derived from the successful curvature wavefront sensing concept but using a non-linear phase retrieval wavefront reconstruction scheme, is described. The non-linear curvature wavefront sensor (nlCWFS) approaches the theoretical sensitivity limit imposed by fundamental physics by taking full advantage of wavefront spatial coherence in the pupil plane. Interference speckles formed by natural starlight encode wavefront aberrations with the sensitivity set by the telescope's diffraction limit lambda/D rather than the seeing limit of more conventional linear WFSs. "},"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":"0911.1310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-11-06T17:37:34Z","cross_cats_sorted":[],"title_canon_sha256":"4b1bb9e99c385037f923194cf10dd6e5314fa5d2ab9496024082a51dbeba17d0","abstract_canon_sha256":"8db959e5f651aa961ece55e4c0c3a496c93dbab6a025dd8a5f90adcd3044cc6d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:58.653522Z","signature_b64":"GnTd4cu6afi9kV5bObyF7HwrKZoB8k21n4nymj0ivXPU4i5arnu0hHlre3rJ4Ny8L97FZ3TE7smCBNO2UeysAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7c23b9ec9d9776894c94ced7b7c34f77e81ac417f40c461ee96d001e4bb8928","last_reissued_at":"2026-05-18T02:10:58.652689Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:58.652689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High Sensitivity Wavefront Sensing with a non-linear Curvature Wavefront Sensor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"2) ((1) Subaru Telescope/NAOJ, (2) University of Arizona), Olivier Guyon (1","submitted_at":"2009-11-06T17:37:34Z","abstract_excerpt":"A new wavefront sensing approach, derived from the successful curvature wavefront sensing concept but using a non-linear phase retrieval wavefront reconstruction scheme, is described. The non-linear curvature wavefront sensor (nlCWFS) approaches the theoretical sensitivity limit imposed by fundamental physics by taking full advantage of wavefront spatial coherence in the pupil plane. Interference speckles formed by natural starlight encode wavefront aberrations with the sensitivity set by the telescope's diffraction limit lambda/D rather than the seeing limit of more conventional linear WFSs. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.1310","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":"0911.1310","created_at":"2026-05-18T02:10:58.652815+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.1310v1","created_at":"2026-05-18T02:10:58.652815+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.1310","created_at":"2026-05-18T02:10:58.652815+00:00"},{"alias_kind":"pith_short_12","alias_value":"67BDXHWJ3F3W","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_16","alias_value":"67BDXHWJ3F3WRFGJ","created_at":"2026-05-18T12:25:58.837520+00:00"},{"alias_kind":"pith_short_8","alias_value":"67BDXHWJ","created_at":"2026-05-18T12:25:58.837520+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/67BDXHWJ3F3WRFGJJTWXW7BU65","json":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65.json","graph_json":"https://pith.science/api/pith-number/67BDXHWJ3F3WRFGJJTWXW7BU65/graph.json","events_json":"https://pith.science/api/pith-number/67BDXHWJ3F3WRFGJJTWXW7BU65/events.json","paper":"https://pith.science/paper/67BDXHWJ"},"agent_actions":{"view_html":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65","download_json":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65.json","view_paper":"https://pith.science/paper/67BDXHWJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.1310&json=true","fetch_graph":"https://pith.science/api/pith-number/67BDXHWJ3F3WRFGJJTWXW7BU65/graph.json","fetch_events":"https://pith.science/api/pith-number/67BDXHWJ3F3WRFGJJTWXW7BU65/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65/action/timestamp_anchor","attest_storage":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65/action/storage_attestation","attest_author":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65/action/author_attestation","sign_citation":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65/action/citation_signature","submit_replication":"https://pith.science/pith/67BDXHWJ3F3WRFGJJTWXW7BU65/action/replication_record"}},"created_at":"2026-05-18T02:10:58.652815+00:00","updated_at":"2026-05-18T02:10:58.652815+00:00"}