Harmony Will Delete Nearly a Week of Its Own Chain History | Editor's Pick Cryptocurrency Market News

Harmony is initiating a full network rollback that will delete nearly a week of blockchain history to erase billions of illegally minted ONE tokens. The plan resets the chain to its state on August 11, specifically from blocks stamped 23:25 UTC, hours before an attacker forged new supply. Validators are preparing clean databases for both shards while the network remains paused until the restart. Harmony said the first forged mint occurred two blocks later, which is why an earlier checkpoint was chosen. The exploit drove ONE to a record low last week after about 4 billion unauthorized tokens appeared, increasing supply by roughly 26%. ONE traded near $0.00072 on Tuesday, down 4% in 24 hours. The rollback also deletes legitimate trades, swaps and staking during that window, and Harmony is working with exchanges and bridges to reduce the impact. Investigators traced nearly all forged tokens across wallets, pools and bridges, but Harmony hasn’t named a restart time.