ALBAWABA - Becoming the first in the world, Swiss Supermarket giant Spar unveiled a new payment method using the OpenCryptoPay system. Spar announced that it has introduced Bitcoin and cryptocurrency payments across all its branches, according to The Crypto Basic website. This makes Spar the first company to offer a countrywide crypto payment system in Switzerland. DFX Swiss reported via X that Spar, which is supporting 1.4 million customers, "is ...