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The CMB shift parameters are R=\\sqrt{\\Omega_m H_0^2}\\,r(z_*), and l_a=\\pi r(z_*)/r_s(z_*), where z_* is the redshift at the last scattering surface, and r(z_*) and r_s(z_*) denote our comoving distance to z_* and sound horizon at z_* respectively.\n  We find that Planck distance priors are significantly tighter than those from WMA"},"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":"1304.4514","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-16T16:38:50Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"bbd551c83ce0e24ced1f4aac919d47f644e0745ef8fe0c337360c0a54fc1e023","abstract_canon_sha256":"9497edffa8fad700572601cf882565e4c7b8948a704dec40211768df4be9bed9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:36.857080Z","signature_b64":"u0qgOUXwWi0V1YHUN8ikOOux0cZ5nlvq67RNcZAmvmFJLjVKpT+/3A9Ld8wLBdQ3fLXmOvm9gFTQs4ZEbIxyBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d85d3b0e2e4c3bc38531e5d42bfc733f01f77b08c9a975fe972ddd38743b5d5a","last_reissued_at":"2026-05-18T03:10:36.856432Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:36.856432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Distance Priors from Planck and Dark Energy Constraints from Current Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Shuang Wang, Yun Wang","submitted_at":"2013-04-16T16:38:50Z","abstract_excerpt":"We derive distance priors from Planck first data release, and examine their impact on dark energy constraints from current observational data. 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