Blake3

Blake3 is a 2020-era hash function built for speed: highly parallel, SIMD-friendly, and dramatically faster than SHA-256 in software. Alephium adopted it for proof-of-work within its sharded blockDAG architecture, where mining secures multiple chain shards simultaneously.

For miners, Blake3 on Alephium has been a GPU opportunity with low power draw per card, now transitioning as dedicated ASICs arrive — the familiar lifecycle of every successful PoW coin. Energy efficiency per hash is among the best of any algorithm.