Making blockchains anonymous

Blockchain transactions that use public ledgers, such as Bitcoin, are not truly anonymous. It is possible to link an address to an individual and expose all the historical transactions.

Now a recent article in MIT Tech Review has described how blockchains can be combine with zero-knowledge proofs so transactions can be provable, but truly anonymous. Zero-knowledge technology allows someone to prove that something is true (such as the fact that your have reached the legal drinking age) without revealing any information about yourself.

A truly anonymous block chain may be a game-changer for private transactions.

 

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