{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:5IRMGO52TXNTF2TLNVIKUONLV4","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":"dd5fa0445811cdb1b7781ee8f3de7bc4e2701f12a4abd401db356befb90a3496","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-13T14:33:07Z","title_canon_sha256":"969b93ec6b6e9f9b3598e249cd6aa373066962fe2e2a1f41a0f1de2ec78a61c1"},"schema_version":"1.0","source":{"id":"0903.2350","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.2350","created_at":"2026-07-04T15:45:39Z"},{"alias_kind":"arxiv_version","alias_value":"0903.2350v3","created_at":"2026-07-04T15:45:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.2350","created_at":"2026-07-04T15:45:39Z"},{"alias_kind":"pith_short_12","alias_value":"5IRMGO52TXNT","created_at":"2026-07-04T15:45:39Z"},{"alias_kind":"pith_short_16","alias_value":"5IRMGO52TXNTF2TL","created_at":"2026-07-04T15:45:39Z"},{"alias_kind":"pith_short_8","alias_value":"5IRMGO52","created_at":"2026-07-04T15:45:39Z"}],"graph_snapshots":[{"event_id":"sha256:30f2d2956b9efa64cb874057f72bd923887ebac0c3500da7242aebe79445603b","target":"graph","created_at":"2026-07-04T15:45:39Z","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/0903.2350/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We extend the pure pseudo-power-spectrum formalism proposed recently in the context of the Cosmic Microwave Background polarized power spectra estimation by Smith (2006) to incorporate cross-spectra computed for multiple maps of the same sky area. We present an implementation of such a technique, paying particular attention to a calculation of the relevant window functions and mixing (mode-coupling) matrices. We discuss the relevance and treatment of the residual $E/B$ leakage for a number of considered sky apodizations as well as compromises and assumptions involved in an optimization of the ","authors_text":"J. Grain, M. Tristram, R. Stompor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-13T14:33:07Z","title":"Polarized CMB power spectrum estimation using the pure pseudo-cross-spectrum approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.2350","kind":"arxiv","version":3},"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":"sha256:16e2fea6c5d1a6810c90b5c615ed354f64e7b2782c89d2621605643363d97761","target":"record","created_at":"2026-07-04T15:45:39Z","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":"dd5fa0445811cdb1b7781ee8f3de7bc4e2701f12a4abd401db356befb90a3496","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-03-13T14:33:07Z","title_canon_sha256":"969b93ec6b6e9f9b3598e249cd6aa373066962fe2e2a1f41a0f1de2ec78a61c1"},"schema_version":"1.0","source":{"id":"0903.2350","kind":"arxiv","version":3}},"canonical_sha256":"ea22c33bba9ddb32ea6b6d50aa39abaf273a7df6399b439174e7a064eff0d6f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea22c33bba9ddb32ea6b6d50aa39abaf273a7df6399b439174e7a064eff0d6f4","first_computed_at":"2026-07-04T15:45:39.076862Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:45:39.076862Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aJGRZDPGG7UYsoEBTN7ZR6bXu6N5VAgXOklY/KJY8cwWvKsQPcto3xJ1+cM8FihCARTWmuGoPZCky28/zY5vCw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:45:39.077238Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.2350","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16e2fea6c5d1a6810c90b5c615ed354f64e7b2782c89d2621605643363d97761","sha256:30f2d2956b9efa64cb874057f72bd923887ebac0c3500da7242aebe79445603b"],"state_sha256":"3968333360367978c8a51e53820c860d76a8d13dc3815de8f910f90c2febea1d"}