{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ZYHBS55ZXECSKYCABEREMIO274","short_pith_number":"pith:ZYHBS55Z","canonical_record":{"source":{"id":"1210.2250","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-08T11:54:06Z","cross_cats_sorted":[],"title_canon_sha256":"ce701fecda0c3cb184609f88f895cc85e964e8ec4ea63568fa965708bf3ebd7c","abstract_canon_sha256":"aa335ddc73b092b7bfd1750cb809e9ea8735905f92921f9b126cd2c7d0ab1aa3"},"schema_version":"1.0"},"canonical_sha256":"ce0e1977b9b90525604009224621daff142bb65303ed0797fc94c794bfb5b674","source":{"kind":"arxiv","id":"1210.2250","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2250","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2250v1","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2250","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"pith_short_12","alias_value":"ZYHBS55ZXECS","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZYHBS55ZXECSKYCA","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZYHBS55Z","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ZYHBS55ZXECSKYCABEREMIO274","target":"record","payload":{"canonical_record":{"source":{"id":"1210.2250","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-08T11:54:06Z","cross_cats_sorted":[],"title_canon_sha256":"ce701fecda0c3cb184609f88f895cc85e964e8ec4ea63568fa965708bf3ebd7c","abstract_canon_sha256":"aa335ddc73b092b7bfd1750cb809e9ea8735905f92921f9b126cd2c7d0ab1aa3"},"schema_version":"1.0"},"canonical_sha256":"ce0e1977b9b90525604009224621daff142bb65303ed0797fc94c794bfb5b674","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:04.650217Z","signature_b64":"MQzz1kmLhfkO/4w9uxMcU4c/wxdH8SGgROCDc0roUxbWVsuqyZCGLAhxBnUqdzC1qVWP/yBhyAI1Pj/l3rlRAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce0e1977b9b90525604009224621daff142bb65303ed0797fc94c794bfb5b674","last_reissued_at":"2026-05-18T01:54:04.649571Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:04.649571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.2250","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ci7F2qiWwsdLQSB+DekdqDc328CzxhD8wBDAgSirjc7mAWC3KYEsPLOj4YyEdV3YEOxHu+AHNul8ACxB3e10Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T22:54:24.269694Z"},"content_sha256":"7e339f1fc8f5b751a92103b055a475522a990f4f9d78cf35fc811b1535fd07e5","schema_version":"1.0","event_id":"sha256:7e339f1fc8f5b751a92103b055a475522a990f4f9d78cf35fc811b1535fd07e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ZYHBS55ZXECSKYCABEREMIO274","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Residual foreground contamination in the WMAP data and bias in non-Gaussianity estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Changbom Park, Pravabati Chingangbam","submitted_at":"2012-10-08T11:54:06Z","abstract_excerpt":"We analyze whether there is any residual foreground contamination in the cleaned WMAP 7 years data for the differential assemblies, Q, V and W. We calculate the correlation between the foreground map, from which long wavelength correlations have been subtracted, and the foreground reduced map for each differential assembly after applying the Galaxy and point sources masks. We find positive correlations for all the differential assemblies, with high statistical significance. For Q and V, we find that a large fraction of the contamination comes from pixels where the foreground maps have positive"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2250","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:54:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E9N+UM3HI3TILpetpLHHtMBtDWaZjEOzqK2nE5kHHG/BcoRqCN9zjWuWUwpaJ6r4YknF2Np8bN/joY6rziIwAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T22:54:24.270045Z"},"content_sha256":"fbce149bbe4a5303e42edd48f679ed5ea8241db950c4825d1cb7e3839ed18f62","schema_version":"1.0","event_id":"sha256:fbce149bbe4a5303e42edd48f679ed5ea8241db950c4825d1cb7e3839ed18f62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZYHBS55ZXECSKYCABEREMIO274/bundle.json","state_url":"https://pith.science/pith/ZYHBS55ZXECSKYCABEREMIO274/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZYHBS55ZXECSKYCABEREMIO274/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-26T22:54:24Z","links":{"resolver":"https://pith.science/pith/ZYHBS55ZXECSKYCABEREMIO274","bundle":"https://pith.science/pith/ZYHBS55ZXECSKYCABEREMIO274/bundle.json","state":"https://pith.science/pith/ZYHBS55ZXECSKYCABEREMIO274/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZYHBS55ZXECSKYCABEREMIO274/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZYHBS55ZXECSKYCABEREMIO274","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":"aa335ddc73b092b7bfd1750cb809e9ea8735905f92921f9b126cd2c7d0ab1aa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-08T11:54:06Z","title_canon_sha256":"ce701fecda0c3cb184609f88f895cc85e964e8ec4ea63568fa965708bf3ebd7c"},"schema_version":"1.0","source":{"id":"1210.2250","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2250","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2250v1","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2250","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"pith_short_12","alias_value":"ZYHBS55ZXECS","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZYHBS55ZXECSKYCA","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZYHBS55Z","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:fbce149bbe4a5303e42edd48f679ed5ea8241db950c4825d1cb7e3839ed18f62","target":"graph","created_at":"2026-05-18T01:54:04Z","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"},"paper":{"abstract_excerpt":"We analyze whether there is any residual foreground contamination in the cleaned WMAP 7 years data for the differential assemblies, Q, V and W. We calculate the correlation between the foreground map, from which long wavelength correlations have been subtracted, and the foreground reduced map for each differential assembly after applying the Galaxy and point sources masks. We find positive correlations for all the differential assemblies, with high statistical significance. For Q and V, we find that a large fraction of the contamination comes from pixels where the foreground maps have positive","authors_text":"Changbom Park, Pravabati Chingangbam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-08T11:54:06Z","title":"Residual foreground contamination in the WMAP data and bias in non-Gaussianity estimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2250","kind":"arxiv","version":1},"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":"sha256:7e339f1fc8f5b751a92103b055a475522a990f4f9d78cf35fc811b1535fd07e5","target":"record","created_at":"2026-05-18T01:54:04Z","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":"aa335ddc73b092b7bfd1750cb809e9ea8735905f92921f9b126cd2c7d0ab1aa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-08T11:54:06Z","title_canon_sha256":"ce701fecda0c3cb184609f88f895cc85e964e8ec4ea63568fa965708bf3ebd7c"},"schema_version":"1.0","source":{"id":"1210.2250","kind":"arxiv","version":1}},"canonical_sha256":"ce0e1977b9b90525604009224621daff142bb65303ed0797fc94c794bfb5b674","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce0e1977b9b90525604009224621daff142bb65303ed0797fc94c794bfb5b674","first_computed_at":"2026-05-18T01:54:04.649571Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:04.649571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MQzz1kmLhfkO/4w9uxMcU4c/wxdH8SGgROCDc0roUxbWVsuqyZCGLAhxBnUqdzC1qVWP/yBhyAI1Pj/l3rlRAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:04.650217Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.2250","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7e339f1fc8f5b751a92103b055a475522a990f4f9d78cf35fc811b1535fd07e5","sha256:fbce149bbe4a5303e42edd48f679ed5ea8241db950c4825d1cb7e3839ed18f62"],"state_sha256":"2e8c2d05d1eb1d48bb2340d7666d77fe2800f2d476358d5302a6a55e6ca1d19e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Yn03DPA+m/Ij3dJE18CfiBcB5WbvENcLUh8tmFRIonai3Isgn8BM6+e/3qNUKU34ijaDa7LpoLAtfcGbp5kCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T22:54:24.272160Z","bundle_sha256":"33e82625889d36bf17ced283b2d4531ff8c142d30f061b253f342f0a136d9ed5"}}