The network’s miners then check the hash to see if the unconfirmed block is valid. This is a time for celebration among crypto miners because the proof of work has finally been completed. From the user's perspective, this essentially implies that the sender's cryptocurrency transfer to the receiver has been confirmed and will be added to the blockchain as part of the block.
We also consider two additional factors that account for the finding that in some periods prices drift away from fundamentals. The first factor is the return of Bitcoin. We argue that Bitcoin, being the largest and most traded cryptocurrency, is the most perceptible to sentiment and speculative trading by investors. Thus, as a factor, it can capture periods when trading forces unrelated to fundamentals are the strongest. The second factor is a cryptocurrency price momentum factor that we construct following the seminal work of Jegadeesh and Titman (1993). Momentum effects have been linked to investor psychology (e.g. Barberis et al. 1998).

Musk has been a long-time advocate of cryptocurrencies and the Tesla decision was felt across the market, with other digital tokens going down in price.
"For any centralized service, we have to do [client verification] and hold customer data," Zhao said. "On top of that we have to hold customer assets. Unlike banks, when the assets get stolen it's difficult to get them back. There's a high responsibility on the centralized exchanges we need to carry out well."