Ripple

Ripple is the leading provider of cross-border payments and digital asset custody solutions. At the core of Ripple’s infrastructure is the XRP Ledger, a mature and widely used blockchain that focuses on decentralized payments and real-world financial utility, distinguishing itself through native support for multi-currency payments and a native decentralized exchange with both an automated market maker and central limit order book integrated directly into its execution layer.
We work closely with Ripple and the XRPL community to improve the network’s security, robustness, and interoperability. We documented XRPL's payment engine by producing the first comprehensive specification of the system. While the payment engine implements sophisticated logic for path finding, payment execution, and multi-currency support, this complexity had not previously been captured in formal documentation. Our work provided Ripple's developers and the broader XRPL community with a clear, shared reference, resolving a long-standing challenge in understanding and safely extending the code base.
This lays the foundation towards formal verification of the Payment Engine, then Consenus, and eventually all critical components of xrpld.
In addition, we identified and reported multiple xrpld bugs, including two critical liveness issues, and reviewed the corresponding fixes. We also uncovered bugs in upcoming features and proposed fixes that developers have accepted.

Team supporting this Partner