{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:6SG7DTIE4IMAGPBMVB52DSZ4A6","short_pith_number":"pith:6SG7DTIE","schema_version":"1.0","canonical_sha256":"f48df1cd04e218033c2ca87ba1cb3c07b8c2e6bee49f7fbb62f4f47f637dcb62","source":{"kind":"arxiv","id":"astro-ph/0403164","version":2},"attestation_state":"computed","paper":{"title":"WMAP Constraints on Decaying Cold Dark Matter","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Keitaro Takahashi, Kiyotomo Ichiki, Masamune Oguri","submitted_at":"2004-03-06T09:30:40Z","abstract_excerpt":"We re-formulate cosmological perturbations in the decaying cold dark matter model, and calculate cosmological microwave background (CMB) anisotropies. By comparing our theoretical predictions with recent observational data from the Wilkinson Microwave Anisotropy Probe(WMAP), we derive a new bound on the abundance and lifetime of decaying dark matter particles. We show that the data of WMAP alone do not prefer the decaying cold dark matter model: the lifetime is constrained to \\Gamma^{-1}> 123 Gyr at 68% C.L. (52 Gyr at 95.4% C.L.) when cold dark matter consists only of such decaying particles."},"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":"astro-ph/0403164","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-03-06T09:30:40Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"ab78b28502fe74a614efc7e13f3e9cb6ce546748afa0fde6b23bd768ac8e7956","abstract_canon_sha256":"957844535af024c4e4ed9c8b98987e58b05c5dd55039921ef80e3c897cbc0f0a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:43:11.361557Z","signature_b64":"BMFfFaV7/+VWaFCEringLYWi4O5SU2zHdFZC31cfcxB48VtVW0M49adGq5okAklCDlnaKnc3Q34jFU3rrGqdAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f48df1cd04e218033c2ca87ba1cb3c07b8c2e6bee49f7fbb62f4f47f637dcb62","last_reissued_at":"2026-07-04T16:43:11.361136Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:43:11.361136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"WMAP Constraints on Decaying Cold Dark Matter","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Keitaro Takahashi, Kiyotomo Ichiki, Masamune Oguri","submitted_at":"2004-03-06T09:30:40Z","abstract_excerpt":"We re-formulate cosmological perturbations in the decaying cold dark matter model, and calculate cosmological microwave background (CMB) anisotropies. By comparing our theoretical predictions with recent observational data from the Wilkinson Microwave Anisotropy Probe(WMAP), we derive a new bound on the abundance and lifetime of decaying dark matter particles. We show that the data of WMAP alone do not prefer the decaying cold dark matter model: the lifetime is constrained to \\Gamma^{-1}> 123 Gyr at 68% C.L. (52 Gyr at 95.4% C.L.) when cold dark matter consists only of such decaying particles."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0403164","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/astro-ph/0403164/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":"astro-ph/0403164","created_at":"2026-07-04T16:43:11.361199+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0403164v2","created_at":"2026-07-04T16:43:11.361199+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0403164","created_at":"2026-07-04T16:43:11.361199+00:00"},{"alias_kind":"pith_short_12","alias_value":"6SG7DTIE4IMA","created_at":"2026-07-04T16:43:11.361199+00:00"},{"alias_kind":"pith_short_16","alias_value":"6SG7DTIE4IMAGPBM","created_at":"2026-07-04T16:43:11.361199+00:00"},{"alias_kind":"pith_short_8","alias_value":"6SG7DTIE","created_at":"2026-07-04T16:43:11.361199+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/6SG7DTIE4IMAGPBMVB52DSZ4A6","json":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6.json","graph_json":"https://pith.science/api/pith-number/6SG7DTIE4IMAGPBMVB52DSZ4A6/graph.json","events_json":"https://pith.science/api/pith-number/6SG7DTIE4IMAGPBMVB52DSZ4A6/events.json","paper":"https://pith.science/paper/6SG7DTIE"},"agent_actions":{"view_html":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6","download_json":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6.json","view_paper":"https://pith.science/paper/6SG7DTIE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0403164&json=true","fetch_graph":"https://pith.science/api/pith-number/6SG7DTIE4IMAGPBMVB52DSZ4A6/graph.json","fetch_events":"https://pith.science/api/pith-number/6SG7DTIE4IMAGPBMVB52DSZ4A6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6/action/storage_attestation","attest_author":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6/action/author_attestation","sign_citation":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6/action/citation_signature","submit_replication":"https://pith.science/pith/6SG7DTIE4IMAGPBMVB52DSZ4A6/action/replication_record"}},"created_at":"2026-07-04T16:43:11.361199+00:00","updated_at":"2026-07-04T16:43:11.361199+00:00"}