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  1. Home
  2. /Glossary
  3. /Data Availability Sampling (DAS)
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blockchain

Data Availability Sampling (DAS)

A technique that lets nodes verify data availability without downloading all of it by randomly sampling small portions.

Definition

A technique that lets nodes verify data availability without downloading all of it by randomly sampling small portions. If enough random samples are available, there's a very high probability the full data is available. This is key to making full danksharding work on Ethereum at massive scale.

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Related Terms

Data Availability

The guarantee that transaction data is published and accessible to anyone who needs to verify it.

Sharding

Splitting a blockchain into smaller pieces (shards) that process transactions in parallel.

Proto-Danksharding

An Ethereum upgrade (EIP-4844) that introduced blob transactions as a stepping stone toward full danksharding.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

Account Model

The way Ethereum and many other chains track balances.

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