{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:VQAJ6BAPI24N35XBFKKGPYEE3N","short_pith_number":"pith:VQAJ6BAP","schema_version":"1.0","canonical_sha256":"ac009f040f46b8ddf6e12a9467e084db76b85b6319b8745faf28c93d4d3aef8c","source":{"kind":"arxiv","id":"astro-ph/0703102","version":1},"attestation_state":"computed","paper":{"title":"Image Ellipticity from Atmospheric Aberrations","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Institute for Geophysics, (3) Lawrence Livermore National Laboratory, (4) University of Washington, Davis, K. L. Baker (3) ((1) University of California, Livermore, L. J. Rosenberg (4), Planetary Physics / LLNL, Seattle), S. J. Asztalos (3), S. S. Olivier (3), W. H. de Vries (1","submitted_at":"2007-03-06T05:25:39Z","abstract_excerpt":"We investigate the ellipticity of the point-spread function (PSF) produced by imaging an unresolved source with a telescope, subject to the effects of atmospheric turbulence. It is important to quantify these effects in order to understand the errors in shape measurements of astronomical objects, such as those used to study weak gravitational lensing of field galaxies. The PSF modeling involves either a Fourier transform of the phase information in the pupil plane or a ray-tracing approach, which has the advantage of requiring fewer computations than the Fourier transform. Using a standard met"},"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":"astro-ph/0703102","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-06T05:25:39Z","cross_cats_sorted":[],"title_canon_sha256":"d4f7f38652db82a4d5f490bd32160ec92dfffe4bbef135869edb1d7511b77170","abstract_canon_sha256":"b2dfe1185385bdecdef372f4470f61a1083ac00d552f2d5a73c5754ea01a7433"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:05.960748Z","signature_b64":"wM8euZ34AYAXbgUm2K1q/W3Z0r/zCmhR+snEBzFz7E2sjK8Vkc3BCBdnw/kOMgT7O65X1bQ3YqiFrH1BR6wXBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac009f040f46b8ddf6e12a9467e084db76b85b6319b8745faf28c93d4d3aef8c","last_reissued_at":"2026-05-18T04:29:05.960074Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:05.960074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Image Ellipticity from Atmospheric Aberrations","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Institute for Geophysics, (3) Lawrence Livermore National Laboratory, (4) University of Washington, Davis, K. L. Baker (3) ((1) University of California, Livermore, L. J. Rosenberg (4), Planetary Physics / LLNL, Seattle), S. J. Asztalos (3), S. S. Olivier (3), W. H. de Vries (1","submitted_at":"2007-03-06T05:25:39Z","abstract_excerpt":"We investigate the ellipticity of the point-spread function (PSF) produced by imaging an unresolved source with a telescope, subject to the effects of atmospheric turbulence. It is important to quantify these effects in order to understand the errors in shape measurements of astronomical objects, such as those used to study weak gravitational lensing of field galaxies. The PSF modeling involves either a Fourier transform of the phase information in the pupil plane or a ray-tracing approach, which has the advantage of requiring fewer computations than the Fourier transform. Using a standard met"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703102","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":"astro-ph/0703102","created_at":"2026-05-18T04:29:05.960179+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703102v1","created_at":"2026-05-18T04:29:05.960179+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703102","created_at":"2026-05-18T04:29:05.960179+00:00"},{"alias_kind":"pith_short_12","alias_value":"VQAJ6BAPI24N","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_16","alias_value":"VQAJ6BAPI24N35XB","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_8","alias_value":"VQAJ6BAP","created_at":"2026-05-18T12:25:56.245647+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/VQAJ6BAPI24N35XBFKKGPYEE3N","json":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N.json","graph_json":"https://pith.science/api/pith-number/VQAJ6BAPI24N35XBFKKGPYEE3N/graph.json","events_json":"https://pith.science/api/pith-number/VQAJ6BAPI24N35XBFKKGPYEE3N/events.json","paper":"https://pith.science/paper/VQAJ6BAP"},"agent_actions":{"view_html":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N","download_json":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N.json","view_paper":"https://pith.science/paper/VQAJ6BAP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0703102&json=true","fetch_graph":"https://pith.science/api/pith-number/VQAJ6BAPI24N35XBFKKGPYEE3N/graph.json","fetch_events":"https://pith.science/api/pith-number/VQAJ6BAPI24N35XBFKKGPYEE3N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N/action/storage_attestation","attest_author":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N/action/author_attestation","sign_citation":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N/action/citation_signature","submit_replication":"https://pith.science/pith/VQAJ6BAPI24N35XBFKKGPYEE3N/action/replication_record"}},"created_at":"2026-05-18T04:29:05.960179+00:00","updated_at":"2026-05-18T04:29:05.960179+00:00"}