On May 11, 2022, with the planned update of the blockchain and the introduction of a part of the DCS on block 9,288,729, different apphashes appeared. Because of this, validators began to sign and offer wrong blocks, which led to abnormal operation of the blockchain and disconnection of validators.
During the restoration works, five validators signed the same block twice and received a 5 percent fine. Since mistakes were made during the technical work, we decided to return the lost coins to the delegators.
It took considerable time to find a method that would allow us to return the state of delegated balances, we tested many solutions and found the appropriate one.