A team from Caltech and Oratomic has demonstrated that a quantum computer capable of running Shor's algorithm would only need 10,000 qubits. Shor's algorithm is a critical protocol that can break today's encryption. Previously, this number was estimated to be one million or even more. This study, published on March 31, significantly accelerates the predicted timeline for quantum machines to threaten blockchain cryptography. This result undermines the fundamental argument that the quantum threat to Bitcoin is decades away.