Base delayed the launch of its B20 Activation Registry on June 27, citing sequencer failures on consecutive days that exposed a consensus fault the chain had not resolved before its scheduled upgrade.
The first halt struck June 25 at approximately 16:03 UTC. An invalid block at block 47,806,542 stopped new block production for nearly two hours; sequencing resumed by 17:51 UTC. The Beryl hard fork activated as scheduled at 18:00 UTC, nine minutes after the stall cleared, but the B20 Activation Registry was not enabled with it. [Base status page; The Block]
A second halt hit June 26. Base flagged unhealthy block production at 15:33 UTC; the chain stalled with the same symptoms. Base applied a fix at 16:11 UTC, but full resolution was not confirmed until 20:03 UTC, nearly four and a half hours after the initial alert. Node operators were told to restart their nodes to resume syncing. [Base status page; The Block]
With the fault repeating, Base announced the B20 delay on June 27. "With the recent network stability issues, we're pushing back the B20 Activation Registry mainnet enablement to ensure a smooth rollout," the team said. No revised date was given. Base founder Jesse Pollak stated: "Network interruptions are incompatible with infrastructure meant to support global financial operations." [CryptoTimes]
B20 is a Rust precompile token standard compiled directly into node software, Base's alternative to smart-contract-based ERC-20 deployments. It targets institutional issuers, stablecoins, and tokenized real-world assets with built-in compliance controls and lower gas costs. Base held approximately $4.08 billion in TVL at time of writing. [DefiLlama]