To purchase cryptocurrency, the user needs to create an appropriate application in the system and search for the performer by geolocation (the function is available in the b1.cash app and on the www.b1.cash website). The performer, in turn, responds to the application and from his account is automatically debited the amount indicated by the author of the application and then this amount is transferred to the account of the author of the application. But in the blocked form. At the time of the transaction, the buyer gives cash to the seller, and the seller sends the activation code to the buyer (it's necessary to unlock the funds that have been credited to the account).