{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:I3ZC5XSUVFEJODFTMCH3KTYBJA","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a9e8412ad68e9edfeb5190c8bef9e900b77eff6654dfc042b580ae7de813afae","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-17T14:42:10Z","title_canon_sha256":"54b6d887f4b99f29400e584354226babf58403b043578cd35bb572535f291c80"},"schema_version":"1.0","source":{"id":"astro-ph/0410394","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0410394","created_at":"2026-07-04T16:44:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0410394v2","created_at":"2026-07-04T16:44:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0410394","created_at":"2026-07-04T16:44:59Z"},{"alias_kind":"pith_short_12","alias_value":"I3ZC5XSUVFEJ","created_at":"2026-07-04T16:44:59Z"},{"alias_kind":"pith_short_16","alias_value":"I3ZC5XSUVFEJODFT","created_at":"2026-07-04T16:44:59Z"},{"alias_kind":"pith_short_8","alias_value":"I3ZC5XSU","created_at":"2026-07-04T16:44:59Z"}],"graph_snapshots":[{"event_id":"sha256:5178295f17a6289094b8df153c0f6f82a939afdb9bf251660bfe465a7c8d246f","target":"graph","created_at":"2026-07-04T16:44:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0410394/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop the pseudo-Cl method for reconstructing the Cosmic Microwave Background (CMB) temperature and polarization auto- and cross-power spectra, and estimate the pseudo-Cl covariance matrix for a realistic experiment on the cut sky. We calculate the full coupling equations for all six possible CMB power spectra, relating the observed pseudo-Cl's to the underlying all-sky Cl's, and test the reconstruction on both full-sky and cut-sky simulated CMB data sets. In particular we consider the reconstruction of the Cl from upcoming ground-based polarization experiments covering areas of a few hun","authors_text":"A. N. Taylor (IfA, M. L. Brown, P. G. Castro, University of Edinburgh)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-10-17T14:42:10Z","title":"CMB temperature and polarisation pseudo-Cl estimators and covariances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0410394","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d6da027bc1f3ef62d30fc89c26960b3dc9c265b28e5d62666e5b2b7b3508a51b","target":"record","created_at":"2026-07-04T16:44:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a9e8412ad68e9edfeb5190c8bef9e900b77eff6654dfc042b580ae7de813afae","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-10-17T14:42:10Z","title_canon_sha256":"54b6d887f4b99f29400e584354226babf58403b043578cd35bb572535f291c80"},"schema_version":"1.0","source":{"id":"astro-ph/0410394","kind":"arxiv","version":2}},"canonical_sha256":"46f22ede54a948970cb3608fb54f01481fe5cf305b976065171aa468faa015c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46f22ede54a948970cb3608fb54f01481fe5cf305b976065171aa468faa015c7","first_computed_at":"2026-07-04T16:44:59.255184Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:44:59.255184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/GM1wWiz1cq/cgKI5x9urDdvNtOtpQcKtKIUm1C3Cz8irjJisV1jTi1QA9KzZRQ4wvY8AEEteogwTsC0sqlKAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:44:59.255531Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0410394","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6da027bc1f3ef62d30fc89c26960b3dc9c265b28e5d62666e5b2b7b3508a51b","sha256:5178295f17a6289094b8df153c0f6f82a939afdb9bf251660bfe465a7c8d246f"],"state_sha256":"a1aacd89fff5ab22b201a9d11f24f0724baa98b01665e6d0d00550eefccb2612"}