Ethereum Validators Finalize Block 25 Million
Ethereum validators finalized block 25,000,000 on May 1, 2026, nearly 11 years after the network’s July 30, 2015 genesis.
On May 1, 2026 the Ethereum validator set finalized block 25,000,000. Validators reached consensus under the network’s proof-of-stake system; the milestone did not involve any protocol-level change or intervention by a central authority.
Since the Merge to proof-of-stake in September 2022, Ethereum has targeted one block every 12 seconds. Under PoS each proposed block occupies a 12-second slot and reaches finality after two epochs, a process that typically takes about 15 minutes. At recent production rates the network has generated roughly 7,000 blocks per day.
Ethereum’s base layer has not suffered a prolonged global shutdown since the genesis block on July 30, 2015, but the chain has experienced degraded performance and partial outages. Notable incidents include infrastructure problems in 2016 and 2020, a Prysm client bug that temporarily knocked about 23% of nodes offline, and two 2023 episodes when finalization paused for more than an hour. In each case block production continued or resumed without a sustained global halt.
The blockchain’s data footprint now runs into the hundreds of gigabytes and tens of millions of ether are locked in staking. Layer 2 networks are processing a growing share of transactions; some L2s have reported outages. Block explorers showed blocks past 25,000,000 within minutes of finalization as validators continued producing new entries.
Major protocol upgrades have passed while the chain kept producing blocks. The London upgrade introduced EIP-1559 and base-fee burning, Shanghai enabled withdrawals for staked ETH, and Dencun added blob-carrying transactions to improve data availability for rollups. Development work is under way on single-slot finality, which would reduce the current roughly 15-minute finalization window to a single 12-second slot.
On May 1, 2026 the Bitcoin blockchain stood at about block 947,491, leaving roughly 52,509 blocks before block 1,000,000. Bitcoin typically produces about 144 blocks per day, averaging one block every 10 minutes, which places block 1,000,000 in mid-to-late 2027 at current rates. That round-number block carries no built-in protocol significance; the next scheduled halving is linked to block 1,050,000 and will reduce the block reward to 1.5625 BTC.
The finalized 25,000,000th block was recorded by distributed validator consensus and did not trigger any change to protocol rules.
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