# Transaction Log

The transaction log consists of a transaction tracker and a revert-changes RPC. The transaction tracker stores information called transaction-metadata about performed transactions into the operational snapshot. Whereas revert-changes RPC can be used to revert changes that have been made in a specific transaction. A user only need to have ID of transaction for that. One or more transactions can be reverted using one revert-changes RPC.

# RPC revert-changes

RPC revert-changes

# Transaction tracker

Transaction tracker