Analyst: Base Network Outage Due to Invalid Block Highlights Centralization Risk of Single Sequencer Model

Odaily Odaily News Blockchain analyst Vadim noted that Base experienced a network outage today due to a consensus bug triggered by a single invalid block. All block generation after height 47806542 ceased, halting the network for nearly two hours. Since Base utilizes a single sequencer architecture, when that node encountered an error, the entire network stopped running, with no backup block producer or other validator nodes available to bypass the fault and maintain on-chain activity. During the outage, users were unable to conduct transactions, perform liquidations, or process withdrawals.

Furthermore, the network recovery process was not automated; node operators within the ecosystem had to manually restart for block synchronization to gradually resume. This is not the first such incident for Base. In August of last year, the network also experienced a freeze lasting approximately 33 minutes due to a sequencer switching failure. The single sequencer model exposes the centralization risks in some current L2 networks: while offering higher speed, the entire chain can come to a halt due to a single point of failure when the core component malfunctions.