Prime Trust, a small U.S. financial institution that's played a behind-the-scenes role in several dollar-backed cryptocurrencies, is entering the hotly competitive crypto custody business. Revealed exclusively to CoinDesk, the Nevada trust company quietly began offering cold storage for bitcoin in mid-July, and will announce next week that it can also handle custody for ether and any token issued on the ethereum blockchain under the ERC-20 standard. Such services are in demand among institutional investors, who despite the bear market find crypto's returns alluring, but don't want the bother of protecting the private ... (full story)