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Analyst: Base may face a network outage caused by invalid blocks, and the single sequencer model concentrates centralization risk.

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Golden Finance reported that on June 26, on-chain analyst Vadim published an article pointing out that Base experienced a consensus vulnerability today, resulting in a single invalid block. All blocks after block height 47806542 stopped being generated, and the network was interrupted for nearly two hours. Since Base uses a single sequencer architecture, when this node fails, the entire network stops running, with no backup block producers or other validators able to bypass the fault to maintain on-chain activity. During this outage, users were unable to trade, settle, or withdraw.
In addition, the network recovery process was not automatic; node operators in the ecosystem needed to manually restart before block synchronization gradually resumed. This is not the first time Base has encountered a similar issue. Last August, Base also experienced a network freeze of about 33 minutes due to a sequencer switch failure. The single sequencer model exposes the centralization risks of some current L2 networks: although it offers higher speed, when core components malfunction, the entire chain can halt due to a single point of failure.
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