Assertion: dash's user | /r/CapableOf | receive duff
Facets:
Source sentences:
text: A single program does everything the user needs to receive and spend duffs.
text: Even better, using new public keys or unique addresses when accepting payments or creating change outputs can be combined with other techniques discussed later, such as PrivateSend or merge avoidance, to make it extremely difficult to use the block chain by itself to reliably track how users receive and spend their duffs.