Finality

Please note, the values on the page reflect the time required to achieve ordering finality, at which point transactions cannot be reverted or reordered. For simplicity, they do not include the overhead time to reach L1 finality, which is the same for all projects. The actionable settlement time on the L1 (that affects your ability to withdraw your funds on the L1) for these transactions may be longer. In most other cases, however, this does not apply (e.g., when transferring funds to an exchange). For more information on how finality works for L2 transactions, check our article.

#	Name	TypeType Type of this project. Determines data availability and proof system used. ZK Rollups = Validity Proofs + onchain data Optimistic Rollups = Fraud Proofs + onchain data Validiums = Validity Proofs + offchain data Optimiums = Fraud Proofs + offchain data	DA MODE The type shows whether projects are posting transaction data batches or state diffs to the L1.	Past day avg. Time to inclusion The average time it would take for an L2 transaction to be included on the L1. Please note, this is an approximate estimation and is different than Time to finality since it ignores the overhead time to reach L1 finality after L1 inclusion.	State update delay Time interval between time to inclusion and state root submission.	Execution delay Time interval between state root submission and state root finalization. For Optimistic Rollups, this usually corresponds to the challenge period, whereas for ZK Rollups, it might be added as a safety precaution.
1	Arbitrum One Fraud proof system is fully deployed but is not yet permissionless as it requires Validators to be whitelisted.	Optimistic Rollup This project is based on Arbitrum's codebase.	Transaction data (compressed)	1 minute Past day avg. time to inclusion Minimum: 7 seconds Average: 1 minute Maximum: 5 minutes	COMING SOON	6d 8h
2	Base Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	1 minute Past day avg. time to inclusion Minimum: 12 seconds Average: 1 minute Maximum: 3 minutes It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
3	OP Mainnet	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	3 minutes Past day avg. time to inclusion Minimum: 12 seconds Average: 3 minutes Maximum: 8 minutes	COMING SOON	3d 12h
4	Blast Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	4 minutes Past day avg. time to inclusion Average: 4 minutes Maximum: 16 minutes It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
5	Scroll	ZK Rollup	Transaction data	3 minutes Past day avg. time to inclusion Minimum: 33 seconds Average: 3 minutes Maximum: 9 minutes Transaction data batches that have not yet been proven can be reverted.	COMING SOON	None
6	Linea The circuit of the program being proven is not public.	ZK Rollup	Transaction data (compressed)	4 hours Past day avg. time to inclusion Minimum: 2 hours Average: 4 hours Maximum: 6 hours	COMING SOON	None
7	ZKsync Era Withdrawals are delayed by 21h. The length of the delay can be arbitrarily set by a MultiSig.	ZK Rollup This project is based on ZK Stack's codebase.	State diffs (compressed)	2 hours Past day avg. time to inclusion Minimum: 1 hour Average: 2 hours Maximum: 4 hours Proven but not executed batches can be reverted by the validator(s) or the StateTransitionManager.	None	21h
8	Starknet	ZK Rollup This project is based on Starknet's codebase.	State diffs	8 hours Past day avg. time to inclusion Minimum: 5 hours Average: 8 hours Maximum: 12 hours	COMING SOON	None
9	Mode Network Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	14 minutes Past day avg. time to inclusion Minimum: 6 seconds Average: 14 minutes Maximum: 33 minutes It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
10	Lisk Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	2 hours Past day avg. time to inclusion Minimum: 6 seconds Average: 2 hours Maximum: 5 hours It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
11	dYdX v3 This page describes dYdX v3, which is an L2 built on Ethereum. Recently deployed dYdX v4 is a separate blockchain based on Cosmos SDK, unrelated to Ethereum and is using different technology. No information on this page applies to dYdX v4.	ZK Rollup This project is built using StarkEx.	State diffs	COMING SOON	COMING SOON	None
12	Polygon zkEVM The forced transaction mechanism is currently disabled.	ZK Rollup This project is based on Polygon's codebase.	Transaction data	13 minutes Past day avg. time to inclusion Minimum: 2 minutes Average: 13 minutes Maximum: 33 minutes Uniform block distribution is assumed for calculations.	COMING SOON	None
13	ZKsync Lite	ZK Rollup This project is based on ZKsync Lite's codebase.	State diffs	2 hours Past day avg. time to inclusion Minimum: 44 minutes Average: 2 hours Maximum: 5 hours	COMING SOON	None
14	Loopring	ZK Rollup This project is based on Loopring's codebase.	State diffs	7 minutes Past day avg. time to inclusion Minimum: 3 minutes Average: 7 minutes Maximum: 16 minutes	COMING SOON	None
15	DeGate V1	ZK Rollup This project is based on Loopring's codebase.	State diffs	2 minutes Past day avg. time to inclusion Minimum: 58 seconds Average: 2 minutes Maximum: 3 minutes	COMING SOON	None
16	Kroma	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data	4 minutes Past day avg. time to inclusion Average: 4 minutes Maximum: 10 minutes It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
17	Kinto Fraud proof system is fully deployed but is not yet permissionless as it requires Validators to be whitelisted.	Optimistic Rollup This project is based on Arbitrum's codebase.	Transaction data (compressed)	COMING SOON	COMING SOON	6d 8h
18	Zora Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	16 minutes Past day avg. time to inclusion Minimum: 6 seconds Average: 16 minutes Maximum: 58 minutes It's assumed that transaction data batches are submitted sequentially.	COMING SOON	7d
19	Paradex	ZK Rollup This project is based on Starknet's codebase.	State diffs	9 hours Past day avg. time to inclusion Minimum: 5 hours Average: 9 hours Maximum: 13 hours	COMING SOON	None
20	Boba Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	COMING SOON	COMING SOON	7d
21	ZKSpace	ZK Rollup This project is based on ZKsync Lite's codebase.	State diffs	COMING SOON	COMING SOON	None
22	Metal Fraud proof system is currently under development. Users need to trust the block proposer to submit correct L1 state roots.	Optimistic Rollup This project is based on OP Stack's codebase.	Transaction data (compressed)	COMING SOON	COMING SOON	7d
23	Parallel Fraud proof system is fully deployed but is not yet permissionless as it requires Validators to be whitelisted.	Optimistic Rollup This project is based on Arbitrum's codebase.	Transaction data (compressed)	COMING SOON	COMING SOON	6d

Want to learn more about the different approaches to upgradeability?Check our report

About L2BEAT

L2BEAT is a public goods company dedicated to providing on-chain transparency.

What sets L2BEAT apart is our unwavering commitment to delivering accurate and reliable information. We strive to be an impartial and independent watchdog that acts in the best interest of users and the broader ecosystem while always remaining credibly neutral and faithful to reality and facts. We deliver data and tools that allow our community to educate themselves, transact securely, and make well-informed decisions.

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Finality

Finality diagrams

State diff ZK rollups

Transaction data Optimistic rollups

Transaction data ZK rollups

About L2BEAT