Facebook Sued Over 'scam Celebrity Crypto Ads'
Cryptocurrencies use various timestamping schemes to "prove" the validity of transactions added to the blockchain ledger without the need for a trusted third party. Most cryptocurrencies are designed to gradually decrease the production of that currency, placing a cap on the total amount of that currency that will ever be in circulation. Compared with ordinary currencies held by financial institutions or kept as cash on hand, cryptocurrencies can be more difficult for seizure by law enforcement. Despite thousands of competitors that have sprung up, Bitcoin—the original cryptocurrency—remains the dominant player in terms of usage and economic value. Each coin was worth roughly $44,000 as of February 2022, with a market capitalization of more than $830 billion. Many cryptocurrencies have gained importance or hold the promise to do so. We calculate the total cryptocurrency market capitalization as the sum of all cryptocurrencies listed on the site. With millions of people inv...