Total transaction anonymity is not a feature of the Nxt blockchain system: every transaction can be seen and traced, giving an unprecedented level of transparency to the world of digital currencies.
The Nxt implementation is the first Shuffling system to be implemented on a decentralized blockchain, and was originally developed to be implemented in Bitcoin itself. The shuffling algorithm is based on a paper by Tim Ruffing et al. and the Nxt implementation of his work has been reviewed by Tim and his team.
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