2026 to Be Key Year for Ethereum ZK Scaling: Validation Mechanism to Undergo 'Merge-Level' Shift

Citing BlockBeats, researchers and developers predict 2026 will be a pivotal year for Ethereum's zero-knowledge (ZK) scaling. Some validators will shift from re-executing transactions to directly verifying ZK proofs, marking a fundamental change in blockchain operations comparable to Ethereum's 2022 transition from PoW to PoS. Ethereum researcher Justin Drake stated that initial validators will verify ZK proofs per block, enabling immediate Layer 1 scaling and laying the groundwork for up to 10,000 TPS. Currently, Ethereum's throughput is around 30 TPS. Drake demonstrated that even an old laptop can verify ZK proofs, with an estimated 10% of validators expected to switch to ZK validation by late 2026. This shift will reduce hardware requirements for validators while maintaining decentralization. Besu client engineer Gary Schulte noted that computationally intensive tasks will be handled by block builders and ZK provers, allowing ordinary validators to perform lightweight checks, thus enabling higher gas limits and throughput. Ethereum is currently in Phase 0 (voluntary validation), expected to enter Phase 1 (partial validation) in 2026 and Phase 2 (mandatory ZK execution) in 2027.