2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123236In the literature, strong coin tossing protocols based on bit commitment have been proposed. Here we examine a protocol that instead tries to achieve the task by sharing entanglement securely. The protocol uses only qubits, and has bias 1/4. This is equal to the best known bias for bit commitment based schemes.4 pages, no figures. Title changed, and paragraph "Additional Notes" addedQuantum Physicstext