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Mimblewimble is a blockchain protocol created to improve privacy, fungibility, and scalability of blockchains.

It was published[1] on July 19, 2016 under the pseudonym "Tom Elvis Jedusor" which is the French name of Voldemort from Harry Potter.[2]

The Mimblewimble protocol uses blinding factors of balancing inputs and outputs in a commitment scheme as private keys. Sender and receiver must interact to construct a joint signature to authorize a transfer of funds. Blocks in Mimblewimble have all their constituent transactions aggregated into one giant transaction, erasing the original transaction boundaries. The initial block download further benefits from cut-through, in which all spent outputs cancel against corresponding inputs, erasing most of the blockchain history.[3]

A provable security analysis for Mimblewimble is provided by Georg Fuchsbauer et al.[4]

The protocol powers several decentralized privacy-oriented cryptocurrencies.[5]


  1. ^ "MIMBLEWIMBLE". scalingbitcoin.org. 2016-07-19. Retrieved 2018-12-21.
  2. ^ "MimbleWimble: History, Technology, and the Mining Industry". The Block. 2019-01-08. Retrieved 2019-08-12.
  3. ^ "Mimblewimble" (PDF). wpsoftware.net. 2016-10-06. Retrieved 2019-08-12.
  4. ^ "Aggregate Cash Systems: A Cryptographic Investigation of Mimblewimble" (PDF). Cryptology ePrint Archive. 2018-10-25. Retrieved 2019-08-12.
  5. ^ "MimbleWimble" (PDF). Circle Research. 2019-03-07. Retrieved 2019-08-12.