Monetary states

As the blockchain grows, it becomes more and more desirable to record states of the currency on a regular basis that would list all the required values describing the currency without requiring to download the whole history of blockchain.

As a first thought, these states would:

• list all current members
• list of sources
• last UD amount
• last MS of each member
• define the minimum number of blocks defining the frequency of the states (next blocks are computed against previous blocks, ...)
• ...

N.B.: this would not be a protocol feature, but API one.