Rollup glossary ​

A wiki of terms to define different Rollup designs and terminology:

Terminology ​

Aggregation ​

Aggregation is the process of batching transactions into one batch. A batch of transactions consists of one or more transactions.

Based rollup ​

A based rollup is a rollup that delegates aggregation to a DA-Layer.

Execution ​

Execution is the process by which the transactions in the blockchain are processed and their effects are applied to the state of the blockchain.

Header production ​

Header production is the process of creating the Rollup header backed by specific security properties.

Inclusion ​

Inclusion is the process by which a transaction is accepted into the blockchain.

Ordering ​

Ordering is the process of arranging transactions in a specific sequence in the blockchain.

Pessimistic rollup ​

A pessimistic rollup is a rollup that only supports full nodes that replay all the transactions in the rollup to check its validity.

Rollup Block ​

A rollup block is a data structure representing the Blockchain at a certain height. It consists of Rollup Data and Rollup Headers.

Rollup Data ​

Rollup data is either a batch of transactions or the state difference between transaction batches.

Rollup Header ​

is metadata about the block which at minimum includes a commitment to the transactions in that block.

Rollups ​

Rollups are blockchains that post their Transaction Data to another blockchain and inherit its consensus and data availability.

Sequencing ​

Sequencing is the process of aggregation and header production.