The Block Verification System, BVS, is a verification component designed to validate blocks as fast as they come in. The system is broken into two main parts the centralized servers and the decentralized nodes. Both systems work together to validate blocks as fast as possible. Both systems keep each other in check to ensure transparency & validity.
There is a dedicated fail safe network designed to validate already existing transactions and to submit corrections to the network for consideration. The fail safe may also be able to submit a freeze on transactions for specific accounts and or the network if a large discrepancy is found, this mechanism will be detailed in the upcoming Viat White Paper.