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Coinbase's Base Blockchain Goes Dark for Two Hours After Consensus Failure

6/28/2026

Base, the layer-2 blockchain built and operated by Coinbase, halted block production for approximately two hours on Thursday after a consensus problem took the network offline.

The chain resumed operations following the stoppage, Base confirmed.

A two-hour block production halt is not a rounding error — it is a test of the infrastructure promises Coinbase has made to the builders and users it has recruited to this chain.

What a Consensus Failure Actually Means A consensus failure means that the nodes responsible for agreeing on the canonical state of the chain stopped reaching agreement.

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