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Check-Coin Now accepts Zcoin

Zero-Knowledge cryptographic proofs

In Bitcoin, all transactions are broadcasted on a public ledger. Research has shown that external information, such as publicly announced addresses, can be used to link identities and organizations to transactions. The default reuse of bitcoin addresses exacerbates this problem.
Furthermore, the same type of mechanism used to break privacy in social networks, such as the analysis of social network topology, can be used to break privacy in the Bitcoin network.
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