MimbleWimbleCoin

Grin (GRIN) is a cryptocurrency that implements the Mimblewimble protocol, focusing on privacy, scalability, and fungibility. Launched in 2019, it aims to provide a lightweight and efficient blockchain for peer-to-peer transactions.

Mimblewimble Protocol

The core of Grin's design is the Mimblewimble protocol, which enhances privacy by obscuring transaction details. It achieves this through:

• Confidential Transactions: Transaction amounts are encrypted.
• CoinJoin-like Structure: Multiple transactions are combined into a single block, making it difficult to trace individual transfers.
• Cut-Through: Intermediate transaction data can be removed, reducing blockchain size over time.

Supply and Mining

Grin has an uncapped supply with a constant block reward of 60 GRIN per block, creating a predictable emission schedule. It utilizes a proof-of-work consensus mechanism, primarily through Cuckaroo29 and Cuckatoo31 algorithms, designed to be ASIC-resistant in its early stages to promote decentralized mining.

Community and Development

Grin is an open-source project driven by a community of developers and enthusiasts. It operates without a central foundation or ICO, relying on donations and volunteer contributions for its ongoing development and maintenance.