{"format":"wai.quantum.receipt-keys/1","algorithm":"ed25519","keys":[{"key":"06092a831e0a22da5bbfe5264e6160f47dcbe887feef31acdd213b7e037ccbf4","did":"did:key:z6MkerpbeXX66yh5unVYhrguP5wMCSSoeTxhE3tkATvBEwt7","not_before_ms":null,"current":true}],"note":"A receipt names the key that signed it (`key`, in hex). Each key is listed with its window: from not_before_ms (null: it signed before this set was kept) to not_after_ms (absent while it is current). A retired key's transition names its successor and is signed by both."}