op-kompressor •

Note
This project is still in early development and is not yet ready for production use. It's kind of a shitpost, but it has potential to reduce the costs of swaps and other transactions with large calldata payloads on Optimism by a significant amount.

op-kompressor is a suite of contracts that allows for relaying compressed abi-encoded payloads to L2 chains (like Optimism) where calldata is an expensive resource.

Compression Schemes

• Run Length Encoding - RLE is great for Ethereum calldata because it's often the case that there are many repeated values in a given payload. The downside of RLE is that space efficiency for payloads with many unique values is poor. This is why op-kompressor supports a hybrid scheme that uses RLE for zero bytes (the most commonly repeated byte in calldata). For certain niche use cases, RLE may be a better choice than the hybrid scheme.

TODO