Bitcoin light clients are now able to sync to the tip of the blockchain nearly instantly, thanks to a new development enabled by bitcoin startup ZeroSync and their work in zero-knowledge (ZK) proofs. Ultimately, ZeroSync seeks to enable full nodes to do the same. ZK proofs allow a prover to generate a short mathematical statement that proves to a verifier that a given computation is correct without revealing any details about such computation. Constructing this proof can be computationally expensive, but the statement it provides is always very compact, regardless…
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