{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:RLFFDAO367SF57YEDQN5EJZ6F6","short_pith_number":"pith:RLFFDAO3","schema_version":"1.0","canonical_sha256":"8aca5181dbf7e45eff041c1bd2273e2f8d5593a12777a01128daeb20e7db29b4","source":{"kind":"arxiv","id":"2007.04325","version":2},"attestation_state":"computed","paper":{"title":"Lower bias, lower noise CMB lensing with foreground-hardened estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Emmanuel Schaan, Noah Sailer, Simone Ferraro","submitted_at":"2020-07-08T18:00:01Z","abstract_excerpt":"Extragalactic foregrounds in temperature maps of the Cosmic Microwave Background (CMB) severely limit the ability of standard estimators to reconstruct the weak lensing potential. These foregrounds are not fully removable by multi-frequency cleaning or masking and can lead to large biases if not properly accounted for. For foregrounds made of a number of unclustered point sources, an estimator for the source amplitude can be derived and deprojected, removing any bias to the lensing reconstruction. We show with simulations that all of the extragalactic foregrounds in temperature can be approxim"},"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":"2007.04325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-07-08T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"43ed52bd375d86019eb12a98c6ce10383223b0478ad3c7b5a79dc5e31fc273b4","abstract_canon_sha256":"51ed4645f2e997fb463f760ce6bfeab2e34acd520293af4670fb9b92eb344415"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:56:19.742680Z","signature_b64":"K70HyBCAgoUhqwshSPrtmgG6NDABYGEB8QaxtKF2LJczUwxVtA5Q3rq/osrNR++PnJqU56y4De7u7/NWtNweCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8aca5181dbf7e45eff041c1bd2273e2f8d5593a12777a01128daeb20e7db29b4","last_reissued_at":"2026-07-05T01:56:19.742252Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:56:19.742252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lower bias, lower noise CMB lensing with foreground-hardened estimators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Emmanuel Schaan, Noah Sailer, Simone Ferraro","submitted_at":"2020-07-08T18:00:01Z","abstract_excerpt":"Extragalactic foregrounds in temperature maps of the Cosmic Microwave Background (CMB) severely limit the ability of standard estimators to reconstruct the weak lensing potential. These foregrounds are not fully removable by multi-frequency cleaning or masking and can lead to large biases if not properly accounted for. For foregrounds made of a number of unclustered point sources, an estimator for the source amplitude can be derived and deprojected, removing any bias to the lensing reconstruction. We show with simulations that all of the extragalactic foregrounds in temperature can be approxim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.04325","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.04325/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2007.04325","created_at":"2026-07-05T01:56:19.742306+00:00"},{"alias_kind":"arxiv_version","alias_value":"2007.04325v2","created_at":"2026-07-05T01:56:19.742306+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.04325","created_at":"2026-07-05T01:56:19.742306+00:00"},{"alias_kind":"pith_short_12","alias_value":"RLFFDAO367SF","created_at":"2026-07-05T01:56:19.742306+00:00"},{"alias_kind":"pith_short_16","alias_value":"RLFFDAO367SF57YE","created_at":"2026-07-05T01:56:19.742306+00:00"},{"alias_kind":"pith_short_8","alias_value":"RLFFDAO3","created_at":"2026-07-05T01:56:19.742306+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.19337","citing_title":"Constraints on Cosmic Strings from the Curl-Mode CMB Lensing Power Spectrum measured by ACT DR6","ref_index":40,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6","json":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6.json","graph_json":"https://pith.science/api/pith-number/RLFFDAO367SF57YEDQN5EJZ6F6/graph.json","events_json":"https://pith.science/api/pith-number/RLFFDAO367SF57YEDQN5EJZ6F6/events.json","paper":"https://pith.science/paper/RLFFDAO3"},"agent_actions":{"view_html":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6","download_json":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6.json","view_paper":"https://pith.science/paper/RLFFDAO3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2007.04325&json=true","fetch_graph":"https://pith.science/api/pith-number/RLFFDAO367SF57YEDQN5EJZ6F6/graph.json","fetch_events":"https://pith.science/api/pith-number/RLFFDAO367SF57YEDQN5EJZ6F6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6/action/storage_attestation","attest_author":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6/action/author_attestation","sign_citation":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6/action/citation_signature","submit_replication":"https://pith.science/pith/RLFFDAO367SF57YEDQN5EJZ6F6/action/replication_record"}},"created_at":"2026-07-05T01:56:19.742306+00:00","updated_at":"2026-07-05T01:56:19.742306+00:00"}