2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91118By using local quantum teleportation of a fixed state to one qubit of an entangled pair sent from the other party, it is shown how one party can commit a bit with only classical information as evidence that results in an unconditionally secure protocol. The well-known ``impossibility proof'' does not cover such protocols due to its different commitment and opening prescriptions, which necessitate actual quantum measurements among different possible systems that cannot be entangled as a consequence.5 pages, revtex4; significant changes (see footnote)Quantum Physicstext