When you send or receive money in an eligible cash transaction, you can receive a reward of up to 5% of the transaction value. We call this “Pop”, and it’s paid to you in our cryptocurrency Metal. For example, if you send your friend $100 you can each get up to $5 worth of Metal!
Pop is the reward mechanism of our distribution model Proof-Of-Processed-Payments or simply PoPP.
If you want to learn more about Pop and PoPP, please read our three volume blog series.