is a trade-off between efficiency and centralization with the scaling solution. . Bitcoin has better trustworthiness because it is protected by computation. The attackers get enough power to control most events in the network.
This would save the resources otherwise needed to 'mint' a PoW token. If youd like to get into the finer details of Proof of Work, then continue reading. Requiring a PoW token from users would inhibit frivolous or excessive use of the service, sparing the service's underlying resources, such as bandwidth to the Internet, computation, disk space, electricity and administrative overhead. While the rewards may vary from blockchain to blockchain, the purpose is always the same: to incentivize individuals to use their computers to solve the difficult math problems required for blocks to be mined. Crypto92: Lecture Notes in Computer Science. On most Unix systems this can be verified with a command: echo -n openssl sha1 References edit a b c d Dwork, Cynthia ; Naor, Moni (1993). Whether such a feature is desirable depends on the usage scenario. A b Abliz, Mehmud; Znati, Taieb (December 2009). Liu, Debin; Camp,. As for the concern about 51 attacks and other types of blockchain manipulation, they are no longer an issue once a chain is secured with the power of the BTC network. They can reverse transactions.