Це схоже на можливість обміну балів лояльності в банку на готівку. They're crafted over a technological innovation called blockchain. That's a form of ledger that documents and verifies transactions made on it. All transactions manufactured on these so-identified as decentralized networks are public and not managed by one particular governing https://andremdrco.buyoutblog.com/32312540/the-2-minute-rule-for-etherium