{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:5O3DAGDAA6AWKIUIGZPJHGGVNW","short_pith_number":"pith:5O3DAGDA","schema_version":"1.0","canonical_sha256":"ebb63018600781652288365e9398d56d9e61fb13f81bdbcca48da82a602c3905","source":{"kind":"arxiv","id":"1204.2229","version":2},"attestation_state":"computed","paper":{"title":"Constraining primordial non-Gaussianity with cosmological weak lensing: shear and flexion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"C. Fedeli, L. Moscardini, M. Bartelmann","submitted_at":"2012-04-10T17:55:01Z","abstract_excerpt":"We examine the cosmological constraining power of future large-scale weak lensing surveys on the model of \\emph{Euclid}, with particular reference to primordial non-Gaussianity. Our analysis considers several different estimators of the projected matter power spectrum, based on both shear and flexion, for which we review the covariances and Fisher matrices. The bounds provided by cosmic shear alone for the local bispectrum shape, marginalized over $\\sigma_8$, are at the level of $\\Delta f_\\mathrm{NL} \\sim 100$. We consider three additional bispectrum shapes, for which the cosmic shear constrai"},"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":"1204.2229","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-10T17:55:01Z","cross_cats_sorted":[],"title_canon_sha256":"47c5a04af298ef1dcb4b305f1f84070bfd4a8aba01022a3b1f0e3b658e4bfa80","abstract_canon_sha256":"d308e4c886427084c2139ed6d8aef4d28210418e62930e762bbb217124c29fb7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:53.930447Z","signature_b64":"4qluSLZ8KPJbTAUEQwSQXPqPyUR2j7BEOTiU6tqe9F3G0WjnanywGHUb7orusELvuB4jIm353OoXAZ2eXpi/Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ebb63018600781652288365e9398d56d9e61fb13f81bdbcca48da82a602c3905","last_reissued_at":"2026-05-18T01:57:53.929955Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:53.929955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraining primordial non-Gaussianity with cosmological weak lensing: shear and flexion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"C. Fedeli, L. Moscardini, M. Bartelmann","submitted_at":"2012-04-10T17:55:01Z","abstract_excerpt":"We examine the cosmological constraining power of future large-scale weak lensing surveys on the model of \\emph{Euclid}, with particular reference to primordial non-Gaussianity. Our analysis considers several different estimators of the projected matter power spectrum, based on both shear and flexion, for which we review the covariances and Fisher matrices. The bounds provided by cosmic shear alone for the local bispectrum shape, marginalized over $\\sigma_8$, are at the level of $\\Delta f_\\mathrm{NL} \\sim 100$. We consider three additional bispectrum shapes, for which the cosmic shear constrai"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2229","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":"1204.2229","created_at":"2026-05-18T01:57:53.930027+00:00"},{"alias_kind":"arxiv_version","alias_value":"1204.2229v2","created_at":"2026-05-18T01:57:53.930027+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2229","created_at":"2026-05-18T01:57:53.930027+00:00"},{"alias_kind":"pith_short_12","alias_value":"5O3DAGDAA6AW","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_16","alias_value":"5O3DAGDAA6AWKIUI","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_8","alias_value":"5O3DAGDA","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/5O3DAGDAA6AWKIUIGZPJHGGVNW","json":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW.json","graph_json":"https://pith.science/api/pith-number/5O3DAGDAA6AWKIUIGZPJHGGVNW/graph.json","events_json":"https://pith.science/api/pith-number/5O3DAGDAA6AWKIUIGZPJHGGVNW/events.json","paper":"https://pith.science/paper/5O3DAGDA"},"agent_actions":{"view_html":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW","download_json":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW.json","view_paper":"https://pith.science/paper/5O3DAGDA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1204.2229&json=true","fetch_graph":"https://pith.science/api/pith-number/5O3DAGDAA6AWKIUIGZPJHGGVNW/graph.json","fetch_events":"https://pith.science/api/pith-number/5O3DAGDAA6AWKIUIGZPJHGGVNW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW/action/storage_attestation","attest_author":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW/action/author_attestation","sign_citation":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW/action/citation_signature","submit_replication":"https://pith.science/pith/5O3DAGDAA6AWKIUIGZPJHGGVNW/action/replication_record"}},"created_at":"2026-05-18T01:57:53.930027+00:00","updated_at":"2026-05-18T01:57:53.930027+00:00"}