# Tangle 1. Tangle protocol is one by which a user has their transaction confirmed by the network if and when they help confirm two other user transactions that came before theirs. It is therefore different from the other protocols in that no single node helps maintain the entire ledger at any given time. Each node helps add or edit two transactions at a time. It also differs with other protocols in that miners receive no reward for helping confirm transactions on the ledger unless their own transaction is confirmed on the ledger. The first blockchain to use this protocol is IOTA. They seek to solve the problem other blockchains face when facilitating micropayments, which can incur fees that at times exceed their value.