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Foundations: Scaling / Rollups

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Rollups

Mar 21, 2026

What is a Sequencer?

Learn what a sequencer is in rollups and scaling systems, how it orders transactions, why it improves latency, and what risks it creates.

24 min read

Rollups

Mar 21, 2026

What Is a ZK Rollup?

Learn what a ZK rollup is, how validity proofs and data availability work, why withdrawals are fast, and what tradeoffs shape zk-rollup design.

23 min read

Rollups

Mar 21, 2026

What is Validium?

Learn what Validium is, how it uses validity proofs with off-chain data, why it scales well, and the key trade-offs versus ZK rollups.

24 min read

Rollups

Mar 21, 2026

What is Volition?

Learn what Volition is, how it mixes rollup and validium data availability, and why that changes costs, recovery guarantees, and trust.

24 min read

Rollups

Mar 21, 2026

What is Restaking for L2 Security?

Learn what restaking for L2 security is, how it works for rollups, what AVSs and slashing do, and why shared security differs from native L1 security.

25 min read

Rollups

Mar 21, 2026

What is a Shared Sequencer?

Learn what a shared sequencer is, why multiple rollups use one ordering layer, how it works, and the tradeoffs around composability and security.

24 min read

Rollups

Mar 21, 2026

What is a Validity Proof?

Learn what a validity proof is, how it secures rollups, why it enables fast finality, and the trade-offs around proving cost, data availability, and proof systems.

24 min read

Rollups

Mar 21, 2026

What is a Rollup?

Learn what a rollup is, how rollups scale blockchains, how optimistic and ZK rollups work, and why data availability and blobs matter.

23 min read

Rollups

Mar 21, 2026

What is a Fraud Proof?

Learn what a fraud proof is, how optimistic rollups use dispute games and single-step verification, and where the model depends on data and incentives.

24 min read

Rollups

Mar 21, 2026

What is an Optimistic Rollup?

Learn what an optimistic rollup is, how fraud proofs and challenge periods work, and why offchain execution can still inherit L1 security.

23 min read

Rollups

Mar 21, 2026

What is an Aggregator?

Learn what a rollup aggregator is, how it batches and publishes L2 data to L1, and why it is central to rollup scalability, cost, and security.

22 min read