Coinbase's Base blockchain resumes after two-hour outage halts transaction processing

Coinbase-backed Ethereum layer-2 network Base halted block production for roughly two hours due to an invalid block. The team advised node operators to restart their nodes and is investigating the root cause. It is the second outage for Base, following a disruption in August 2025.

• Base halted block production at 16:03 UTC on June 25, resuming after roughly two hours
• The team identified an invalid block as the cause and advised node operators to restart their nodes
• This is Base's second outage, following a 29-minute disruption in August 2025
• Base is one of Ethereum's largest layer-2 networks by total value locked and user activity
• The team continues to investigate the root cause and is monitoring network stability

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Last updated 26 Jun 2026