{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:RYTO5XIGZJQLVSZR4WPSUCXWFD","short_pith_number":"pith:RYTO5XIG","schema_version":"1.0","canonical_sha256":"8e26eedd06ca60bacb31e59f2a0af628fe4a7fbdfdfeb6c70dde28fdf3b92662","source":{"kind":"arxiv","id":"0911.0150","version":1},"attestation_state":"computed","paper":{"title":"Bayesian analysis of an anisotropic universe model: systematics and polarization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Hans Kristian Eriksen, Ingunn Kathrine Wehus, Lotty Ackerman, Nicolaas E. Groeneboom","submitted_at":"2009-11-01T19:33:17Z","abstract_excerpt":"We revisit the anisotropic universe model previously developed by Ackerman, Carroll and Wise (ACW), and generalize both the theoretical and computational framework to include polarization and various forms of systematic effects. We apply our new tools to simulated WMAP data in order to understand the potential impact of asymmetric beams, noise mis-estimation and potential Zodiacal light emission. We find that neither has any significant impact on the results. We next show that the previously reported ACW signal is also present in the 1-year WMAP temperature sky map presented by Liu & Li, where"},"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":"0911.0150","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-01T19:33:17Z","cross_cats_sorted":[],"title_canon_sha256":"4c6ad88f255327b5fcef7080227f2338cab3040153ba6769b53298639e23b7de","abstract_canon_sha256":"52108a18bba05743b6517f3620c6cbe28e8d07d26da074e9d055fcd04e7723c3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:12.293512Z","signature_b64":"Y5aK26BMLKxl7qXkovzDMMom7fvxTyhJF9Qeug74lAyzpYbexx4uP/1GqZwkpkSbTC98Tqpio6N32zkxuxEhCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e26eedd06ca60bacb31e59f2a0af628fe4a7fbdfdfeb6c70dde28fdf3b92662","last_reissued_at":"2026-05-18T02:34:12.292966Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:12.292966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bayesian analysis of an anisotropic universe model: systematics and polarization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Hans Kristian Eriksen, Ingunn Kathrine Wehus, Lotty Ackerman, Nicolaas E. Groeneboom","submitted_at":"2009-11-01T19:33:17Z","abstract_excerpt":"We revisit the anisotropic universe model previously developed by Ackerman, Carroll and Wise (ACW), and generalize both the theoretical and computational framework to include polarization and various forms of systematic effects. We apply our new tools to simulated WMAP data in order to understand the potential impact of asymmetric beams, noise mis-estimation and potential Zodiacal light emission. We find that neither has any significant impact on the results. We next show that the previously reported ACW signal is also present in the 1-year WMAP temperature sky map presented by Liu & Li, where"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.0150","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":"0911.0150","created_at":"2026-05-18T02:34:12.293042+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.0150v1","created_at":"2026-05-18T02:34:12.293042+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.0150","created_at":"2026-05-18T02:34:12.293042+00:00"},{"alias_kind":"pith_short_12","alias_value":"RYTO5XIGZJQL","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"RYTO5XIGZJQLVSZR","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"RYTO5XIG","created_at":"2026-05-18T12:26:01.383474+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/RYTO5XIGZJQLVSZR4WPSUCXWFD","json":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD.json","graph_json":"https://pith.science/api/pith-number/RYTO5XIGZJQLVSZR4WPSUCXWFD/graph.json","events_json":"https://pith.science/api/pith-number/RYTO5XIGZJQLVSZR4WPSUCXWFD/events.json","paper":"https://pith.science/paper/RYTO5XIG"},"agent_actions":{"view_html":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD","download_json":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD.json","view_paper":"https://pith.science/paper/RYTO5XIG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.0150&json=true","fetch_graph":"https://pith.science/api/pith-number/RYTO5XIGZJQLVSZR4WPSUCXWFD/graph.json","fetch_events":"https://pith.science/api/pith-number/RYTO5XIGZJQLVSZR4WPSUCXWFD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD/action/storage_attestation","attest_author":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD/action/author_attestation","sign_citation":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD/action/citation_signature","submit_replication":"https://pith.science/pith/RYTO5XIGZJQLVSZR4WPSUCXWFD/action/replication_record"}},"created_at":"2026-05-18T02:34:12.293042+00:00","updated_at":"2026-05-18T02:34:12.293042+00:00"}