The U.S. Securities and Exchange Commission (SEC) recently released documents calling for public input on five Bitcoin (CRYPTO: BTC) exchange-traded funds (ETFs) applications. “We encourage the public to submit comments on the following Cboe BZX Exchange, Inc. filings during the comment period,” the agency said, citing Ark Invest’s ARK 21Shares Bitcoin ETF, as well as pending ETFs from Wise Origin, WisdomTree, VanEck and Invesco Galaxy.