Uses validity proofs like ZK-rollups but data is not stored on the main layer 1 Ethereum chain. This can lead to 10k transactions per second per validium chain and multiple chains can be run in parallel.
You should have a good understanding of all the foundational topics and a high-level understanding of Ethereum scaling. Implementing scaling solutions such as Validium is an advanced topic as the technology is less battle-tested, and continues to be researched and developed.
|No withdrawal delay (no latency to on-chain/cross-chain tx); consequent greater capital efficiency.||Limited support for general computation/smart contracts; specialized languages required.|
|Not vulnerable to certain economic attacks faced by fraud-proof based systems in high-value applications.||High computational power required to generate ZK proofs; not cost effective for low throughput applications.|
|Slower subjective finality time (10-30 min to generate a ZK proof) (but faster to full finality because there is no dispute time delay).|
|Generating a proof requires off-chain data to be available at all times.|
Multiple projects provide implementations of Validium that you can integrate into your dapps:
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