As its name suggests, you can use cryptocurrency to make purchases. But your purchasing power is limited; crypto isn’t yet widely accepted among retailers and other businesses.
III. 4JNET’s four guaranteesMSB license: 4JNET has secured the U.S. MSB license for encrypted tokens and is allowed to lawfully engage in initial coin offerings (ICOs), initial exchange offerings (IEOs) and encrypted token transactions.Transparency: All business logics of 4JNET are achieved through smart contracts. All of the contract’s addresses and codes are open sourced.Contract audit: 4JNET’s smart contract has been audited by the blockchain security company CertiK, and its security and fairness are further guaranteed.Fairness: 4JNET’s unique mechanism effectively curbs the token oligarchs and centralized holding of tokens.IV. Conclusions

From the perspective of technical analysis, profit-taking near all-time highs and the need for a retest of lower support levels are normal processes for most cryptocurrencies. In fact, a quick glance over discussions by many analysts and traders on Twitter shows that most expected BTC to revisit lower support levels at $64,000 and below before recapturing bullish momentum and moving higher.
In order to provide a methodology to detect bubbles in time series, Phillips, Wu, and Yu [23] proposed the supremum augmented Dickey-Fuller (SADF) test. This applies a series of right-tailed unit root tests to expanding windows of a time series (with a fixed start date), defined by where r2 is the final data point to be considered in each window, starting at r0 which is a fraction representing the smallest allowed window size and expanding to 1(the complete data set).