"One of the winning wallets spent around $191,000 to buy 7.6% of the supply and tipped the Base sequencer more than $44,000 in priority fees to land the trade before others. After selling their full allocation, the trader netted over $600,000 in profit. According to pseudonymous analyst bheau, the mechanics behind the snipes stem from flashblocks, a Base feature rolled out in July. While Base has two-second block times, it now produces a series of 200-millisecond micro-blocks within each full block. This allows bots to detect a token-deployment transaction the moment it appears in the first flashblock and submit high-fee buy orders that settle in the next flashblock, so both appear in the same on-chain block."

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