Bitcoin, with its appearance, brought a global modernization of the economy. But at present, modernization remains incomplete. The creation of many blockchain projects gives complete freedom to both developers and entrepreneurs. But unfortunately, almost all entrepreneurs consider cryptocurrency as a means of investing, and not completely modernizing their own business processes. Also, smart contracts are not fully used. Is it possible to develop a business, as well as a new round in the life of cryptocurrencies with the implementation of the function of mining altoins on the blockchains of Ethereum, Tron, Solana or Tezos? Currently, mining can be considered not only as a function of maintaining the viability of the blockchain. Mining can only be based on commercial purposes. It can be considered as mining for carrying out any actions, or for providing any information (for example, checks). In fact, each entrepreneur can adapt the extraction of issued coins to his own business needs. Which will lead to an increase in demand for altcoins existing not on native blockchains. The demand for altcoins (like any other cryptocurrencies) favors the development of the critical currency industry as a whole. Which blockchain, at the moment, is the most suitable for the implementation of mining on smart contracts? And when will the boom of altcoins mining come?