The paper presents a novel approach to generating cryptographically secure random numbers using the nonlocal correlations of entangled quantum particles. The authors demonstrate that the violation of Bell inequalities can certify the presence of genuine randomness, allowing for the creation of a new type of random number generator that does not rely on any assumptions about the internal workings of the devices. This method is fundamentally different from classical approaches and is only possible in quantum systems if certified by a Bell inequality violation. The authors conduct a proof-of-concept experiment using two entangled atomic ions separated by about 1 meter, achieving a Bell inequality violation that guarantees the generation of 42 new random numbers with 99% confidence. This work lays the groundwork for future device-independent quantum information experiments and addresses fundamental issues related to the intrinsic randomness of quantum theory.The paper presents a novel approach to generating cryptographically secure random numbers using the nonlocal correlations of entangled quantum particles. The authors demonstrate that the violation of Bell inequalities can certify the presence of genuine randomness, allowing for the creation of a new type of random number generator that does not rely on any assumptions about the internal workings of the devices. This method is fundamentally different from classical approaches and is only possible in quantum systems if certified by a Bell inequality violation. The authors conduct a proof-of-concept experiment using two entangled atomic ions separated by about 1 meter, achieving a Bell inequality violation that guarantees the generation of 42 new random numbers with 99% confidence. This work lays the groundwork for future device-independent quantum information experiments and addresses fundamental issues related to the intrinsic randomness of quantum theory.