smile-kevin (25)in #smart • 6 years agoHow to write upgradable smart contract on EthereumPeople know once contract was published, it is impossible to change its logic. After one contract attracted huge users…smile-kevin (25)in #presearch • 6 years agoSeries analysis on Presearch Project(crypto Incentive mechanism)I have spent one month or so to explore this project. I got some observations and some thoughts. In following series…