A well-defined crypto regulatory regime is urgently needed, according to SEC Commissioner Hester Peirce, as major companies embrace the alternative asset class.Bitcoin (BTC-USD) hit record highs this week, and rose another 5% to over $49,000 on Sunday, after Tesla invested $1.5B in the crypto, BNY Mellon said it would help clients manage digital assets and Mastercard opened its network to some cryptocurrencies."It's not only that there have been calls for clarity for some time and that a new administration brings the chance to take a fresh look, but it also is a moment where it seems others in the marketplace are also taking a fresh look," said Pierce.Peirce was labeled "Crypto Mom" after she publicly dissented on the SEC's decision in 2018 to reject a Bitcoin ETF application filed by Cameron and Tyler Winklevoss. She is currently serving her second term as one of the SEC’s five commissioners.Over the weekend,