During the spring of 2020, O(1) Labs engaged NCC Group to conduct a cryptographic assessment of Coda Protocol. This cryptocurrency leverages state-of-the art cryptographic constructions to provide traditional cryptocurrency applications with a more lightweight blockchain. This assessment focused on the core cryptographic primitives as well as the overlaid protocol. The O(1) Labs team provided source code, and was communicative throughout the engagement. NCC Group performed this test on a purpose-built branch of the code available at the time of testing. The Public Report for this audit may be downloaded below.