# Reference

- [Polygon CDK](/reference/polygon-cdk.md)
- [Celestia](/reference/celestia.md): Celestia is a modular data availability (DA) network that securely scales with the number of users, making it easy for anyone to launch their own blockchain.
- [ERC-4337:  Account Abstraction](/reference/erc-4337-account-abstraction.md): An account abstraction proposal which completely avoids the need for consensus-layer protocol changes