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  1. Home
  2. /Glossary
  3. /Blockchain
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blockchain

Blockchain

A distributed database where transactions are grouped into blocks and linked together cryptographically.

Definition

A distributed database where transactions are grouped into blocks and linked together cryptographically. Once data is on the chain, it's extremely hard to change without redoing all subsequent blocks. This makes blockchains great for recording anything that shouldn't be tampered with.

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Related Terms

Block

A bundle of transactions that gets permanently added to the blockchain.

Decentralized

Not controlled by any single entity, authority, or server.

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.

Actively Validated Service (AVS)

A service or protocol that uses EigenLayer's restaked ETH for its security instead of bootstrapping its own validator set.

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