Optimistic Rollups

Transaction batches executed off-chain with fraud proofs ensuring validity. A trust-minimized approach to Ethereum scaling.

L2-001.OR

ZK-Rollups

Validity proofs via zero-knowledge cryptography compress thousands of transactions into a single succinct proof on mainnet.

L2-002.ZK

State Channels

Bilateral off-chain communication protocols enabling instant transactions between parties with on-chain settlement.

L2-003.SC

Plasma Chains

Child chains anchored to mainnet via Merkle roots, enabling massive throughput through hierarchical blockchain structures.

L2-004.PL

Sidechains

Independent blockchains with their own consensus, connected to the main chain via a two-way bridge mechanism.

L2-005.SI

Validium

Off-chain data availability with on-chain validity proofs. Hybrid architecture balancing throughput with cryptographic guarantees.

L2-006.VA

Cross-Chain Bridges

Protocols enabling asset and message transfer between disparate blockchain networks through lock-and-mint or burn-and-mint mechanisms.

L2-007.BR

Fraud Proofs

Dispute resolution mechanisms that allow any observer to challenge invalid state transitions during a defined challenge period.

L2-008.FP

Validity Proofs

Cryptographic proofs that attest to the correctness of state transitions without requiring re-execution of every transaction.

L2-009.VP

Data Availability

The guarantee that transaction data is accessible for verification, a fundamental requirement for Layer 2 security models.

L2-010.DA

Sequencers

Entities responsible for ordering transactions in Layer 2 systems, determining inclusion and execution sequence before batch submission.

L2-011.SQ

Payment Channels

Dedicated off-chain pathways for rapid value transfer, enabling micropayments and high-frequency exchanges at negligible cost.

L2-012.PC