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Grin is an in-progress implementation of the Mimblewimble protocol. Grin is a privacy-preserving digital currency built openly by developers and distributed all over the world. Grin has no amounts and no addresses. Transactions can be trivially aggregated. To hide the origin of a newly created transaction, it gets relayed among a sub-set of peers before it is widely broadcasted. Electronic transactions for all. Without censorship or restrictions. Designed for the decades to come, not just for tomorrow. To be used by anyone, anywhere. Grin is not controlled by any company, foundation, or individual. The coin distribution is designed to be as fair as possible, with emission of 1 GRIN per second. Mimblewimble leverages cryptography to allow past transaction data to be removed with no compromise on security. This avoids Grin collapsing under the weight of data having to be kept on-chain.
Features
- Clean and minimal implementation, and aiming to stay as such
- Follows the Mimblewimble protocol, which provides hidden amounts and scaling advantages
- Cuckoo Cycle proof of work in two variants named Cuckaroo (ASIC-resistant) and Cuckatoo (ASIC-targeted)
- Relatively fast block time: one minute
- Fixed block reward over time with a decreasing dilution
- Transaction fees are based on the number of Outputs created/destroyed and total transaction size
Project Samples
