RLP (Recursive Length Prefix)

RLP (Recursive Length Prefix) is a serialization format used extensively in Ethereum to encode arbitrarily nested arrays of binary data. The `rlp` Python library provides efficient functions for encoding Python objects (byte strings, integers, lists/tuples of these) into RLP byte strings and decoding them back. It is actively maintained by the Ethereum project. The current version is 4.1.0.