K-Pop Sensation Mamamoo to Mint Digital Collectibles on Polkadot News The popular K-Pop girl band’s parent company RBW will be selling its singers’ digital products on the blockchain. More courses:Mike Novogratz’s Galaxy Digital Nets $44.3M in Q3Altcoins Undergo Their Best Crypto Week since 2017,…Polkadot Surges After Binance Home Page Listing,…