{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:6CXUBU4CNQCWSQOF332JZM2QVW","short_pith_number":"pith:6CXUBU4C","schema_version":"1.0","canonical_sha256":"f0af40d3826c056941c5def49cb350ada3ad088a411f8d77926aeae39d5b130a","source":{"kind":"arxiv","id":"1210.3069","version":2},"attestation_state":"computed","paper":{"title":"CALCLENS: Weak Lensing Simulations for Large-area Sky Surveys and Second-order Effects in Cosmic Shear Power Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Matthew R. Becker (UChicago/KICP)","submitted_at":"2012-10-10T21:35:52Z","abstract_excerpt":"I present a new algorithm, CALCLENS, for efficiently computing weak gravitational lensing shear signals from large N-body light cone simulations over a curved sky. This new algorithm properly accounts for the sky curvature and boundary conditions, is able to produce redshift-dependent shear signals including corrections to the Born approximation by using multiple-plane ray tracing, and properly computes the lensed images of source galaxies in the light cone. The key feature of this algorithm is a new, computationally efficient Poisson solver for the sphere that combines spherical harmonic tran"},"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":"1210.3069","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-10T21:35:52Z","cross_cats_sorted":[],"title_canon_sha256":"2b6f04a3a19d893d657da013dc8dd45e37e0d7b972ef156082c24560ec0ee137","abstract_canon_sha256":"c51274da5bdf6b7a70d8563fce45eae541b232245b1eb310aea1c2a7cc2a491c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:43:20.117423Z","signature_b64":"7Cu4t3XQ6jochr/efNVgh9zE87iCW/3H0aLtngih6UM2Rozsx8r1gwY0h7cLioDugbWvaEAHWeW3F21E/9JcAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f0af40d3826c056941c5def49cb350ada3ad088a411f8d77926aeae39d5b130a","last_reissued_at":"2026-05-18T03:43:20.116756Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:43:20.116756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"CALCLENS: Weak Lensing Simulations for Large-area Sky Surveys and Second-order Effects in Cosmic Shear Power Spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Matthew R. Becker (UChicago/KICP)","submitted_at":"2012-10-10T21:35:52Z","abstract_excerpt":"I present a new algorithm, CALCLENS, for efficiently computing weak gravitational lensing shear signals from large N-body light cone simulations over a curved sky. This new algorithm properly accounts for the sky curvature and boundary conditions, is able to produce redshift-dependent shear signals including corrections to the Born approximation by using multiple-plane ray tracing, and properly computes the lensed images of source galaxies in the light cone. The key feature of this algorithm is a new, computationally efficient Poisson solver for the sphere that combines spherical harmonic tran"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3069","kind":"arxiv","version":2},"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":"1210.3069","created_at":"2026-05-18T03:43:20.116865+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.3069v2","created_at":"2026-05-18T03:43:20.116865+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3069","created_at":"2026-05-18T03:43:20.116865+00:00"},{"alias_kind":"pith_short_12","alias_value":"6CXUBU4CNQCW","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_16","alias_value":"6CXUBU4CNQCWSQOF","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_8","alias_value":"6CXUBU4C","created_at":"2026-05-18T12:26:56.085431+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/6CXUBU4CNQCWSQOF332JZM2QVW","json":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW.json","graph_json":"https://pith.science/api/pith-number/6CXUBU4CNQCWSQOF332JZM2QVW/graph.json","events_json":"https://pith.science/api/pith-number/6CXUBU4CNQCWSQOF332JZM2QVW/events.json","paper":"https://pith.science/paper/6CXUBU4C"},"agent_actions":{"view_html":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW","download_json":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW.json","view_paper":"https://pith.science/paper/6CXUBU4C","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.3069&json=true","fetch_graph":"https://pith.science/api/pith-number/6CXUBU4CNQCWSQOF332JZM2QVW/graph.json","fetch_events":"https://pith.science/api/pith-number/6CXUBU4CNQCWSQOF332JZM2QVW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW/action/storage_attestation","attest_author":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW/action/author_attestation","sign_citation":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW/action/citation_signature","submit_replication":"https://pith.science/pith/6CXUBU4CNQCWSQOF332JZM2QVW/action/replication_record"}},"created_at":"2026-05-18T03:43:20.116865+00:00","updated_at":"2026-05-18T03:43:20.116865+00:00"}