This document describes the work carried out by the Inter-American Development Bank, IDB Lab, LACChain, Cambridge Quantum Computing (CQC), and Tecnológico de Monterrey to identify and eliminate quantum threats in blockchain networks. The advent of quantum computing threatens internet protocols and blockchain networks because they use cryptographic algorithms that are not quantum-resistant. When quantum computers become robust enough to run Shor's algorithm on a large scale, the most widely used asymmetric algorithms, which are used for digital signatures and message encryption, such as RSA, (EC)DSA, and (EC)DH, will no longer be secure.