- Add core crypto implementation (ETChash.cpp, ETCCache.cpp)
- Implement ECIP-1099 epoch calculation for Ethereum Classic
- Add Ethash support with standard 30000 block epochs
- Integrate with OpenCL and CUDA backends for memory calculation
- Register ETCHASH_ETC and ETHASH_ETH algorithm IDs
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
