Guiding principles of ecash
Independence: its security must not depend on its existence in any physical location
Security: it canÅft be reusable and canÅft be respent
Privacy: it canÅft be traced and must protect the privacy of the users
Offline payment: merchants should not have to have a net connections to make it work
Transferability: it must be able to be moved from one person to another without traces of identity
Divisibility: it must be able to be broken into smaller amounts
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