{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:7FVFDC54YNNMPECP3CGCA5SMDX","short_pith_number":"pith:7FVFDC54","schema_version":"1.0","canonical_sha256":"f96a518bbcc35ac7904fd88c20764c1de626d5eb230329f65877d14af46ff171","source":{"kind":"arxiv","id":"2605.21586","version":1},"attestation_state":"computed","paper":{"title":"Still non-accelerating: age-bias correction in supernova cosmology is robust to host-progenitor age mapping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Chul Chung, Dongwook Lim, Hyejeon Cho, Junhyuk Son, Seunghyun Park, Suk-Jin Yoon, Young-Wook Lee","submitted_at":"2026-05-20T18:00:02Z","abstract_excerpt":"We re-examine the claim by Wiseman et al. (2026) that progenitor-age bias has a negligible impact on cosmological inferences from Type Ia supernovae (SNe Ia). We show that their inferred host-age-Hubble residual (HR) slope is severely underestimated because their combined SN Ia sample spans an unusually wide redshift range ($0.04 < z < 0.42$), over which the mean host age evolves by $\\sim$\\,3 Gyr. As a result, SNe Ia spanning substantial host-age differences are effectively assigned similar HR values prior to regression, artificially flattening the inferred age-HR relation. In addition, their "},"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":"2605.21586","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-05-20T18:00:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"2303b10b98a95df3661a00eee1e3d06c5dce5255a66b6f2252b7684c3ecfc107","abstract_canon_sha256":"aa341247a18c624730594639994fb66db7a1bf9023fe72626ab5ff1474329649"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:03:23.867985Z","signature_b64":"cUuwQqeAMTeQHLh6/zvJ3ZETH+mQgkyHbGdtYNxloXvJ7Azv8pIYVIXno4WqR6a4vnlaSRGIH6b/f1DtdUypCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f96a518bbcc35ac7904fd88c20764c1de626d5eb230329f65877d14af46ff171","last_reissued_at":"2026-05-22T01:03:23.867396Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:03:23.867396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Still non-accelerating: age-bias correction in supernova cosmology is robust to host-progenitor age mapping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Chul Chung, Dongwook Lim, Hyejeon Cho, Junhyuk Son, Seunghyun Park, Suk-Jin Yoon, Young-Wook Lee","submitted_at":"2026-05-20T18:00:02Z","abstract_excerpt":"We re-examine the claim by Wiseman et al. (2026) that progenitor-age bias has a negligible impact on cosmological inferences from Type Ia supernovae (SNe Ia). We show that their inferred host-age-Hubble residual (HR) slope is severely underestimated because their combined SN Ia sample spans an unusually wide redshift range ($0.04 < z < 0.42$), over which the mean host age evolves by $\\sim$\\,3 Gyr. As a result, SNe Ia spanning substantial host-age differences are effectively assigned similar HR values prior to regression, artificially flattening the inferred age-HR relation. In addition, their "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21586","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.21586/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":"2605.21586","created_at":"2026-05-22T01:03:23.867506+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.21586v1","created_at":"2026-05-22T01:03:23.867506+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21586","created_at":"2026-05-22T01:03:23.867506+00:00"},{"alias_kind":"pith_short_12","alias_value":"7FVFDC54YNNM","created_at":"2026-05-22T01:03:23.867506+00:00"},{"alias_kind":"pith_short_16","alias_value":"7FVFDC54YNNMPECP","created_at":"2026-05-22T01:03:23.867506+00:00"},{"alias_kind":"pith_short_8","alias_value":"7FVFDC54","created_at":"2026-05-22T01:03:23.867506+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/7FVFDC54YNNMPECP3CGCA5SMDX","json":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX.json","graph_json":"https://pith.science/api/pith-number/7FVFDC54YNNMPECP3CGCA5SMDX/graph.json","events_json":"https://pith.science/api/pith-number/7FVFDC54YNNMPECP3CGCA5SMDX/events.json","paper":"https://pith.science/paper/7FVFDC54"},"agent_actions":{"view_html":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX","download_json":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX.json","view_paper":"https://pith.science/paper/7FVFDC54","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.21586&json=true","fetch_graph":"https://pith.science/api/pith-number/7FVFDC54YNNMPECP3CGCA5SMDX/graph.json","fetch_events":"https://pith.science/api/pith-number/7FVFDC54YNNMPECP3CGCA5SMDX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX/action/storage_attestation","attest_author":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX/action/author_attestation","sign_citation":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX/action/citation_signature","submit_replication":"https://pith.science/pith/7FVFDC54YNNMPECP3CGCA5SMDX/action/replication_record"}},"created_at":"2026-05-22T01:03:23.867506+00:00","updated_at":"2026-05-22T01:03:23.867506+00:00"}