Ethereum's PeerDAS Upgrade Brings Capacity Gain, But Stability Remains a Concern

PeerDAS has successfully scaled its capacity, but network stability remains a concern. The Ethereum network now targets 8 blobs per block, up from the previous 6 blob maximum. PeerDAS handles data availability by allowing validators to sample columns instead of downloading every blob.

The protocol uses erasure coding to expand blobs into 128 columns. Most validating nodes subscribe to 8 columns to satisfy custody requirements, ensuring that any 50 percent of the columns can reconstruct the original data.

Regular nodes and solo stakers sample data from peers to reduce their download and storage burdens, shifting more responsibility to large validators who must store more data and help heal the network when pieces are missing.