Currency

• Symbol: ツ
• Code: GRIN
• Precision: 10^−9¹
• Subunits: follows SI prefix scheme¹:
  • Milligrin, a thousandth of a grin
  • Microgrin, a thousandth of a milligrin
  • Nanogrin, smallest unit, takes a billion nanogrin to make a grin
• Exchange rate: US$0.03 (as of 2024)²
• Initial distribution: No presale of any kind.
• Circulating supply: ~ツ187,000,000 (December 2024)
• Inflation rate: ~ツ32,400,000 minted each year.
• Supply limit: No limit (ツ1/sec, forever)

Ledger

• Timestamping scheme: Proof-of-work (MimbleWimble)
• Hash function: Cuckatoo32³
• Difficulty Adjustment: Damped Weighted Moving Average¹
• Genesis block: 2019-01-15 16:01:26 UTC
• Block reward: ツ60¹
• Block time: 1 minute¹
• Block size limit: ~1.5MB¹
• Average Transaction Size: ~1.76KB¹
• Max Transaction Throughput: ~15 transactions per second¹

Development

• Original author(s): Ignotus Peverell
• Initial release: v1.0.0 / January 15th, 2019⁴
• Latest release: v5.3.3 / September 16th, 2024⁵
• Website: https://grin.mw/
• Code repository: https://github.com/mimblewimble/grin
• Development status: Active
• Project Codebase: Original MimbleWimble implementation, not a derivative work.
• Programming Language: Rust
• Operating system: Windows, OS X, Linux
• Developer(s): Grin Core Development Team
• Source model: Open source
• Software License: Apache License Version 2.0

Sources

1. core/src/consensus.rs ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

2. GRIN/USD CoinGecko ↩

3. tromp/cuckoo ↩

4. Grin Mainnet Launch ↩

5. Latest releases ↩