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 of how large the data served as an input to the proof calculation was –– enabling blazing fast verification of the correctness of that data with mathematical certainty. In bitcoin, this math trick can be very useful to nodes and clients.
Bitcoin full nodes are notoriously required to download and verify every single piece of data that makes up the blockchain, from its inception in January 2009 to the present day. Due to t
We współpracy z: https://bitcoinmagazine.com/technical/bitcoin-nodes-now-one-step-closer-to-instant-sync
