{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:GHQOQFL2B2GA2NRMFATOZAGXG6","short_pith_number":"pith:GHQOQFL2","schema_version":"1.0","canonical_sha256":"31e0e8157a0e8c0d362c2826ec80d737954ba24bcebbf67c79be901d579a7005","source":{"kind":"arxiv","id":"1510.03103","version":1},"attestation_state":"computed","paper":{"title":"Using inpainting to construct accurate cut-sky CMB estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"E. P. S. Shellard, H. F. Gruetjen, J. R. Fergusson, M. Liguori","submitted_at":"2015-10-11T21:22:23Z","abstract_excerpt":"The direct evaluation of manifestly optimal, cut-sky CMB power spectrum and bispectrum estimators is numerically very costly, due to the presence of inverse-covariance filtering operations. This justifies the investigation of alternative approaches. In this work, we mostly focus on an inpainting algorithm that was introduced in recent CMB analyses to cure cut-sky suboptimalities of bispectrum estimators. First, we show that inpainting can equally be applied to the problem of unbiased estimation of power spectra. We then compare the performance of a novel inpainted CMB temperature power spectru"},"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":"1510.03103","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-10-11T21:22:23Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"368c659832ae805193da4c8fdcbb51aae6bcfaff42ab2ca8cd073461e46eb4fd","abstract_canon_sha256":"225da7fc305f27f80a27ea46967c7a214f4d5875513c7c3c3254bfea3c6ffc3a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:52.549145Z","signature_b64":"owzhr6TSZ+a2EYhDdrFKsq6tIUrIwRyk8vwSKSeTkjr/em4+IvJF2qMsV0+tKVikce+XgQ68DhC3Bmz7XErXCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31e0e8157a0e8c0d362c2826ec80d737954ba24bcebbf67c79be901d579a7005","last_reissued_at":"2026-05-18T00:49:52.548706Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:52.548706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Using inpainting to construct accurate cut-sky CMB estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"E. P. S. Shellard, H. F. Gruetjen, J. R. Fergusson, M. Liguori","submitted_at":"2015-10-11T21:22:23Z","abstract_excerpt":"The direct evaluation of manifestly optimal, cut-sky CMB power spectrum and bispectrum estimators is numerically very costly, due to the presence of inverse-covariance filtering operations. This justifies the investigation of alternative approaches. In this work, we mostly focus on an inpainting algorithm that was introduced in recent CMB analyses to cure cut-sky suboptimalities of bispectrum estimators. First, we show that inpainting can equally be applied to the problem of unbiased estimation of power spectra. We then compare the performance of a novel inpainted CMB temperature power spectru"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.03103","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":"1510.03103","created_at":"2026-05-18T00:49:52.548785+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.03103v1","created_at":"2026-05-18T00:49:52.548785+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.03103","created_at":"2026-05-18T00:49:52.548785+00:00"},{"alias_kind":"pith_short_12","alias_value":"GHQOQFL2B2GA","created_at":"2026-05-18T12:29:22.688609+00:00"},{"alias_kind":"pith_short_16","alias_value":"GHQOQFL2B2GA2NRM","created_at":"2026-05-18T12:29:22.688609+00:00"},{"alias_kind":"pith_short_8","alias_value":"GHQOQFL2","created_at":"2026-05-18T12:29:22.688609+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/GHQOQFL2B2GA2NRMFATOZAGXG6","json":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6.json","graph_json":"https://pith.science/api/pith-number/GHQOQFL2B2GA2NRMFATOZAGXG6/graph.json","events_json":"https://pith.science/api/pith-number/GHQOQFL2B2GA2NRMFATOZAGXG6/events.json","paper":"https://pith.science/paper/GHQOQFL2"},"agent_actions":{"view_html":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6","download_json":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6.json","view_paper":"https://pith.science/paper/GHQOQFL2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.03103&json=true","fetch_graph":"https://pith.science/api/pith-number/GHQOQFL2B2GA2NRMFATOZAGXG6/graph.json","fetch_events":"https://pith.science/api/pith-number/GHQOQFL2B2GA2NRMFATOZAGXG6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6/action/storage_attestation","attest_author":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6/action/author_attestation","sign_citation":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6/action/citation_signature","submit_replication":"https://pith.science/pith/GHQOQFL2B2GA2NRMFATOZAGXG6/action/replication_record"}},"created_at":"2026-05-18T00:49:52.548785+00:00","updated_at":"2026-05-18T00:49:52.548785+00:00"}