Glossary
Danksharding
Ethereum's planned full data-availability scaling design that massively expands blob capacity and uses data availability sampling so nodes verify data without downloading all of it.
Danksharding is the long-term scaling roadmap that builds on proto-danksharding (EIP-4844). Instead of giving every rollup its own shard, it provides a single large pool of blob data attached to each block, dramatically raising the amount of cheap data the chain can carry.
The key trick is data availability sampling: rather than downloading every blob, each node randomly checks a handful of small pieces. With erasure coding and KZG commitments, this gives strong statistical certainty that all the data was published, letting light nodes help secure data availability. The result is far higher rollup throughput without forcing validators to store everything.