Proven Interest Rewards As An Alternative To ICOS

The Proven Interest Reward System (PIRS) uses smart contract to combine components of airdrops and ICOs in a way to ensure that interested individuals get tokens for free ultimately but only after they've demonstrated (financial) interest in the project.

It involves users locking ETH in a smart contract for a period of time enough to demonstrate commitment to the project and afterwards, get both their Ether and tokens back; during this lock-up period, individuals will be free to withdraw their ETH from the smart contract but that would result in losing the tokens. Also, the value of the tokens will be totally determined by the free market.

Full post: http://www.cryptoinafrica.com/2018/04/proven-interest-reward-ico-alternative.html