Cryptocurrency start-ups are having a solid start to the year, bagging hundreds of millions of dollars in fresh cash even as investors grow wary about a steep drop in digital asset prices.Several privately-held firms announced bumper cash injections in January. Crypto exchange FTX and its U.S. affiliate raised a combined $800 million, valuing the companies at $32 billion and $8 billion respectively.Fireblocks, a crypto infrastructure start-up, was valued at $8 billion in a $550 million round, while rival Blockdaemon scored $155 million on a $1.3 billion valuation. It’s worth noting some negotiations for these deals likely began late last year.It follows a blockbuster year for both cryptocurrencies and the ventures being developed to support the growth of the industry. Crypto and blockchain start-ups raised a record $25 billion in 2021, marking an eightfold increase year-on-year, according to CB Insights data, as venture capitalists sought to ride a rally in bitcoin and other tokens.cnbc.com