- Blog
Dan Lawrence | August 17, 2020
Farewell GRIN Cuckatoo31
As of block 826,560, the graph_weight of Cuckatoo31 has fallen to 0, which makes it impossible to solve blocks with C31 — it is no longer profitable to mine GRIN C31 (here was the last block).
Some miners are still attempting to mine this combination, however, and some services are still displaying it as profitable. To help with some of the confusion, we’ve removed GRIN C31 from Foreman.

What Do I Do?
If you want to continue to mine GRIN, switch to either Cuckarooz29 (C29) or Cuckatoo32 (C32).
If you want to continue to mine Cuckatoo31, switch to MimbleWimbleCoin (MWC).
Recommended Pools
- 2miners (GRIN C29, GRIN C32, MWC)
Subscribe to OBM’s Blog
Get the latest posts delivered right to your inbox.
More from OBM

Daniel Lawrence on Data Center Go-to-Market Podcast

Looking Ahead: 2026 Trends Shaping the Future of Flexible Load Management

Transform Risk Into Revenue: How Power Suppliers Can Serve Bitcoin Miners and Other Energy-Intensive Customers Profitably
