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ZKPs or Zero Knowledge Proofs Are Evolving Blockchains [Explained in non-technical terms] ZKP can be used for much more than just privacy. Coda's recent testnet is different, Coda’s blockchain is fixed size. It doesn’t grow. Yet Coda is as secure, or arguably even more secure than traditional blockchains. ZkP is a way to cheaply validate a computed result without redoing the computing: Zero knowledge proof (ZKP)