Safix is a private credit protocol designed for tokenized stocks and other real-world assets. It allows users to use supported tokenized assets as collateral to access USDG liquidity through an on-chain credit system. The protocol includes SafixPool for collateral-backed credit positions, PartnershipDesk for alternative profit-and-loss sharing structures, and PassportRegistry for privacy-focused borrower and collateral verification. Safix is being built for Robinhood Chain and uses EVM-compatible smart contracts, Chainlink price feeds, and USDG as its primary settlement asset. The protocol is intended to provide programmable credit infrastructure for tokenized asset holders while keeping collateral management, settlement, and verification on-chain.