Meet Grin – The Private & Lightweight Mimblewimble Blockchain. MainNet, Onwards!

What’s Grin?

Grin is an open source software project that implements a MimbleWimble (Original Whitepaper)  (Andrew Poelstra WhitePaper) blockchain and fills the gaps required for a full blockchain and cryptocurrency deployment.

Grin has a largely anonymous team, no founders’ rewards, and a community spirit reminiscent to the early days of Bitcoin, when people cared about creating something useful rather than big bank involvement and kicking butt on Binance and Bitmex.

The main goal and characteristics of the Grin project are:

  • Privacy by default. This enables complete fungibility without precluding the ability to selectively disclose information as needed.
  • Scales mostly with the number of users and minimally with the number of transactions, resulting in a large space saving compared to other blockchains.
  • Strong and proven cryptography. MimbleWimble only relies on Elliptic Curve Cryptography which has been tried and tested for decades.
  • Design simplicity makes it easy to audit and maintain over time.
  • Community driven, encouraging mining decentralization.

Grin is able to build transactions that are completely opaque but can still be properly validated. And by generalizing those properties to blocks, it eliminates a large amount of blockchain data, allowing for great scaling and fast sync of new peers.

Grin is not controlled by any company, foundation or individual and the coin distribution has been designed to be as fair as possible.  ”Electronic transactions for all. Without censorship or restrictions”.

Grin has no amounts and no addresses. Transactions can be trivially aggregated. To hide where a newly created transaction comes from, it gets relayed privately (a “random walk”) among peers before it is publicly announced

MimbleWimble leverages cryptography to allow most of the past transaction data to be removed. This guarantees Grin won’t crumble under its own weight in the long term.

Grin is developed openly, by developers distributed all over the world. It’s not controlled by any company, foundation or individual. The coin distribution is designed to be as fair (but not gratis) as is known to be possible.

What Grin and Mimblewimble Mean for the Future of Bitcoin Privacy

Grin and Mimblewimble
Mimblewimble and Scriptless Scripts | Andrew Poelstra (Blockstream) | RWC 2018
How to Mine GrinCoin on Windows - Launches January 15th, 2019
MimbleWimble with Andrew Poelstra
Bitcoin Q&A: MimbleWimble and Schnorr signatures
Intro to Mimblewimble and Grin by Council Member Jasper van Maarel
Top Gainers

Extra Info:
Origin of the name Mimblewimble:
Mimblewimble – 
The Tongue-Tying Curse (Mimblewimble), also known as the Tongue-Tying Spellbinds the target’s tongue to keep him or her from talking about a specific subject. This feature also allows one to prevent the victim from incanting, and hence—like the Silencing Charm—it is useful when dueling (though could be overcome with more advanced magic). It is covered in the book Curses and Counter-Curses.


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