What is Kaspa's current proof-of-work mining algorithm?

Kaspa's current proof-of-work mining algorithm is k-heavyhash. Proof-of-work is the process miners run on specialized hardware to secure the network and earn block rewards — the algorithm is the specific mathematical puzzle that hardware must solve. Early in Kaspa's development, a different, unnamed algorithm was designed in cooperation with a mining company to be easy to build ASICs for, but that earlier algorithm had no relation to k-heavyhash. Knowing the current algorithm matters if you are considering mining, because hardware compatibility depends entirely on which algorithm the network actually runs.