{"algorithm_note":"RSA-PSS with SHA-256, salt length 32 (the digest length). Verify the canonical payload bytes from the sunsub-hours.json attachment.","keys":[{"kid":"9ad43d0605ad57a4","algorithm":"RSA-PSS-SHA256","created_at":"2026-09-28T22:59:24Z","retired_at":null,"url":"https://estimating.sunpaintingva.com/sunsub/keys/9ad43d0605ad57a4.pem"}]}