         coder.encode(blockHeight, key: "bh")
         coder.encode(exchangeRate, key: "er")
         coder.encode(exchangeRateCurrency, key: "erc")
-        coder.encode(confirmations, key: "conf")
         coder.encode(size, key: "s")
         coder.encode(firstConfirmation, key: "fconf")
         coder.encode(created, key: "c")

        blockHeight = decoder.decode("bh")
        exchangeRate = decoder.decode("er")
        exchangeRateCurrency = decoder.decode("erc")
        confirmations = decoder.decode("conf")
        size = decoder.decode("s")
        firstConfirmation = decoder.decode("fconf")
        created = decoder.decode("c")

        blockHeight =           s.blockHeight
        exchangeRate =          s.exchangeRate
        exchangeRateCurrency =  s.exchangeRateCurrency
        size =                  s.size
        firstConfirmation =     s.firstConfirmation
        created =               s.created
