Meridian is a privacy-focused protocol designed for the BNB Smart Chain that allows supported ERC-20 tokens to be deposited into a shielded pool and represented as notes within a Merkle tree. Users can spend or withdraw notes using zero-knowledge proofs, allowing transaction validity to be verified without publicly revealing the specific deposit associated with the transaction. The system is designed as a non-custodial protocol, with no upgrade, pause, or administrative function for controlling user funds.