PeerDAS has operated successfully for nearly a year on Ethereum

Ethereum’s most consequential networking upgrade in years has now been running without major incident for nearly twelve months. PeerDAS, the protocol that lets validators confirm data availability without downloading full blocks, has held up through a sustained increase in blob capacity and a dramatic collapse in Layer 2 transaction costs. What PeerDAS actually does Each node only needs to check roughly one-eighth of the extended data to be confident the full dataset is there. If enough randomly selected samples come back intact, the network reaches consensus that the data is available, even though no single participant held all of it. The technical machinery underneath involves erasure coding similar to Reed-Solomon. Extended blob data gets divided into 128 columns, which are then distributed across the network using gossip subnets. Each node subscribes to a subset of around eight columns, making the workload light enough that validators don’t need upgraded hardware to participate. The formal name is EIP-7594, and it shipped as the headline feature of the Fusaka hard fork on December 3, 2025. Before mainnet activation, the Ethereum development community ran extensive testing acros...