Ravencoin mining pools to roll back four days of transactions after flaw

Two mining pools that account for the majority of Ravencoin’s hashpower are initiating a rollback of the blockchain to a point prior to the first invalid block mined on Friday. The correction aims to address a critical flaw in block validation, which has compromised the integrity of transactions processed since that time.

The affected mining pools, which together control over 60% of the network’s computational power, are building a replacement chain to restore consensus. Deposits, withdrawals, and payments executed between the invalid block and the planned rollback are at risk of reversal, according to developers monitoring the issue.

Ravencoin’s core development team confirmed the flaw in a public statement, noting that the error stemmed from an incorrect block validation rule that allowed invalid transactions to be included in the chain. The team urged users and exchanges to halt transactions until further notice to mitigate exposure to the rollback.

The rollback process is expected to take several hours to complete, with the replacement chain resuming normal operations once consensus is restored. Developers emphasized that the correction is necessary to prevent potential double-spending risks and maintain network stability.

Exchanges and payment processors have been notified of the impending rollback, though the full extent of its impact on user balances remains unclear. The incident highlights vulnerabilities in decentralized networks where a majority of hashpower can enforce changes to transaction history.