The BraveNewCoin aggregated index is chosen as the source of data for Bitcoin, Ethereum and Monero. The BraveNewCoin aggregated index is not used for Litecoin as their index for Litecoin only starts in April 2014 and misses earlier price action. Instead, Litecoin data is retrieved from the BTC-E time series. It should be noted BTC-E has recently (25th July 2017) been shut down by US authorities, however this is after the data interval examined. It has been observed that price differences do exist between cryptocurrency exchanges [19], and it is expected the BTC-E price over time will be different to other exchanges, however with the possibility of exchange arbitrage, prices on different exchanges are reasonably similar.
Buy-back: Another feature that attracts customers the most is its robust price stability, provided by its efficient multiple buyback feature. By taxing 3% on every traction to support the buyback feature, EverGrow sends these tokens to a particular wallet, known as a 'buyback wallet.' These tokens are immediately removed from the circulating supply boosting the price and producing green candles on the price chart.

A cryptocurrency’s blockchain is the master public ledger that records and stores all prior transactions and activity, validating ownership of all units of the currency at any given point in time.
Although this test successfully detects single isolated bubbles, Phillips, Shi, and Yu [24] acknowledge it may suffer from reduced discriminatory power when applied to time series with multiple occurrences of bubbles. To overcome this weakness, a further enhancement was proposed, as a new method, called a generalized supremum ADF (GSADF) test. This test allows both the start and end points of data subsets to vary, which in turn enables the identification of multiple bubble regimes in one observed time series. The GSADF test is defined by