As a type of digital crowdfunding, ICOs enable startups not only to raise funds without giving up equity but also to establish a community of incentivized users who want the project to succeed so their presale tokens rise in value. An initial stake-pool offering , also known as an ISO, is a novel variation of an ICO for funding cryptocurrency projects. In an ISPO, users stake their cryptocurrency holdings through a stake-pool operated by the cryptocurrency project. Ethereum raised money with a token sale in 2014, raising around 31,000 BTC in July, equal to approximately $18.3 million at the time. Bounty programs are rewards, usually in the form of tokens, to website promote an initial coin offering . Sometimes ICOs with remarkable returns on investment are not the projects that raise the most money, and vice versa.
