{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:B2KGJSG2UL46TITYSW3H4QKYZG","short_pith_number":"pith:B2KGJSG2","schema_version":"1.0","canonical_sha256":"0e9464c8daa2f9e9a27895b67e4158c9a97437b433ef8b5bc591e6c86753a17e","source":{"kind":"arxiv","id":"1210.2696","version":1},"attestation_state":"computed","paper":{"title":"Interpolating point spread function anisotropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"F. Courbin, G. Meylan, M. Gentile","submitted_at":"2012-10-09T19:13:54Z","abstract_excerpt":"Planned wide-field weak lensing surveys are expected to reduce the statistical errors on the shear field to unprecedented levels. In contrast, systematic errors like those induced by the convolution with the point spread function (PSF) will not benefit from that scaling effect and will require very accurate modeling and correction. While numerous methods have been devised to carry out the PSF correction itself, modeling of the PSF shape and its spatial variations across the instrument field of view has, so far, attracted much less attention. This step is nevertheless crucial because the PSF is"},"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":"1210.2696","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-09T19:13:54Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"7d65cc2f1618ff656db49806842bdbb959521ace0947e0d0230ba525ffa415ed","abstract_canon_sha256":"e883c69f4be9a5a358c2d1edc6675a6b7616fa08990e7a1d80beed50f7ce639d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:42:43.862691Z","signature_b64":"aC9PbslMFkuQNXic4AzsF/Fyt0b4Fbp9Go5W/UK8VMqfz1DNRfEISv1J0srV7VukmhSJyvbD9s2/BP67xYEvDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e9464c8daa2f9e9a27895b67e4158c9a97437b433ef8b5bc591e6c86753a17e","last_reissued_at":"2026-05-18T03:42:43.862066Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:42:43.862066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Interpolating point spread function anisotropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"F. Courbin, G. Meylan, M. Gentile","submitted_at":"2012-10-09T19:13:54Z","abstract_excerpt":"Planned wide-field weak lensing surveys are expected to reduce the statistical errors on the shear field to unprecedented levels. In contrast, systematic errors like those induced by the convolution with the point spread function (PSF) will not benefit from that scaling effect and will require very accurate modeling and correction. While numerous methods have been devised to carry out the PSF correction itself, modeling of the PSF shape and its spatial variations across the instrument field of view has, so far, attracted much less attention. This step is nevertheless crucial because the PSF is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2696","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":"1210.2696","created_at":"2026-05-18T03:42:43.862148+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.2696v1","created_at":"2026-05-18T03:42:43.862148+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2696","created_at":"2026-05-18T03:42:43.862148+00:00"},{"alias_kind":"pith_short_12","alias_value":"B2KGJSG2UL46","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_16","alias_value":"B2KGJSG2UL46TITY","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_8","alias_value":"B2KGJSG2","created_at":"2026-05-18T12:26:58.693483+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/B2KGJSG2UL46TITYSW3H4QKYZG","json":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG.json","graph_json":"https://pith.science/api/pith-number/B2KGJSG2UL46TITYSW3H4QKYZG/graph.json","events_json":"https://pith.science/api/pith-number/B2KGJSG2UL46TITYSW3H4QKYZG/events.json","paper":"https://pith.science/paper/B2KGJSG2"},"agent_actions":{"view_html":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG","download_json":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG.json","view_paper":"https://pith.science/paper/B2KGJSG2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.2696&json=true","fetch_graph":"https://pith.science/api/pith-number/B2KGJSG2UL46TITYSW3H4QKYZG/graph.json","fetch_events":"https://pith.science/api/pith-number/B2KGJSG2UL46TITYSW3H4QKYZG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG/action/storage_attestation","attest_author":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG/action/author_attestation","sign_citation":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG/action/citation_signature","submit_replication":"https://pith.science/pith/B2KGJSG2UL46TITYSW3H4QKYZG/action/replication_record"}},"created_at":"2026-05-18T03:42:43.862148+00:00","updated_at":"2026-05-18T03:42:43.862148+00:00"}