 Though Bitfinex lacks the banking connections to accept dollar deposits, it has denied that it is insolvent.Tether announced a new banking relationship with Bahamas-based Deltec Bank in November 2018, releasing a letter, purportedly from Deltec, that said it had $1.8 billion on deposit with the bank.The letter was two paragraphs long and signed with an illegible squiggle, without a printed author's name.