NEW YORK (AP) — Sometime in the next few days or even hours, the “miners” who chisel bitcoins out of complex mathematics are going to take a 50% pay cut — effectively slicing new production of the world’s largest cryptocurrency in half.

That could have a lot of implications, from the price of the asset to the bitcoin miners themselves. And, as with everything in the volatile cryptoverse, the future is hard to predict.

Here’s what you need to know.

WHAT IS BITCOIN HALVING AND WHY DOES IT MATTER?

Bitcoin “halving,” a preprogrammed event that occurs roughly every four years, impacts the production of bitcoin. Miners use farms of noisy, specialized computers to solve convoluted math puzzles; and when they complete one, they get a fixed number of bitcoins as a reward.

Halving does exactly what it sounds like — it cuts that fixed income in half. And when the mining reward falls, so does the number of new bitcoins entering the market. That means the supply of coins available to satisfy demand grows more slowly.