IonQ has unveiled a hardware-level blueprint for a fault-tolerant quantum computer that could solve Bitcoin’s secp256k1 discrete-logarithm problem in 25.7 days. The design calls for 1,457 logical qubits, approximately 39 million Toffoli gates and 19,397 physical qubits, including the hardware needed for quantum error correction. IonQ describes the work as a fully compiled, end-to-end blueprint and a more concrete benchmark for evaluating quantum risks to public-key cryptography. The study does not demonstrate an attack on Bitcoin or show that such a machine currently exists. IonQ has outlined a roadmap toward 10,000 physical qubits by 2027, while anticipating further hardware and manufacturing advances around 2028.