What is Mimblewimble?

Mimblewimble is a privacy-focused blockchain design first proposed in 2019 by the pseudonymous Tom Elvis Jedusor. Mimblewimble's novel design proposes a way to maintain transaction data privacy while executing transaction verification that does not require network nodes to store the entire history of the blockchain. Grin and Beam are open-source implementations of Mimblewimble tech.