Validium vs. Rollup

While both ZK Rollups and Validium use Zero Knowledge proofs to enhance scalability and security, they differ in their data storage approaches:

Feature	ZK Rollups	ZK Validium
Data Storage	On-chain	Off-chain
Scalability	High, limited by on-chain data availability	Very high, due to off-chain data storage
Cost Efficiency	Moderate cost savings	Significant cost savings
Security	Strong, with data verified on-chain	Strong, with data integrity maintained off-chain