Ethereum's PeerDAS Protocol Marks One-Year Milestone with Promising Scalability Results

The Ethereum network has successfully implemented its most significant upgrade in years, PeerDAS (EIP-7594), which has been running smoothly for nearly a year. This protocol enables validators to confirm data availability without downloading entire blocks.

PeerDAS achieves decentralized data availability consensus by having each node check only a small portion of the extended data. If enough randomly selected samples are intact, the network reaches consensus that the data is available, even if no single participant has the complete dataset.

The technical implementation involves erasure coding similar to Reed-Solomon. The extended blob data is divided into 128 columns and distributed across the network using gossip subnets. Each node subscribes to a subset of around eight columns, making the workload manageable for validators without requiring upgraded hardware.

Since its activation on December 3, 2025, PeerDAS has led to significant improvements in blob capacity and Layer 2 transaction costs. The target sat at six to nine blobs per block initially but climbed to 14 blobs just four weeks later. This increase has resulted in a substantial reduction of over 95% in Layer 2 transaction fees, from $0.20 to $0.50 before PeerDAS to between $0.005 and $0.02 after its implementation.