Importing images from digital cameras using Net Image Acquisition (WIA)defining(determining) their face value and serial number and assuring their own digital signature. Then it sends them to bank which, at receipt of real money for the account, signs these denominations, knowing only their face value and sends them back to the client. At purchase the client sends denominations to the seller (and the seller does not receive any data on the buyer, but the buyer can always prove, that it as only it knows serial numbers of the denominations has made purchase) who shows to their bank checking authenticity and makes transfer on the account of the seller.
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