Sex for tokens kenya invalidating all
Contributions can take the form of mining, as in bitcoin, ethereum and Sia, or publishing stories, as in Steemit.
Since user tokens are on a blockchain, they can be easily redeemed for any local or cryptocurrency.
For example, in the case of Sia, 3.9% of all successful storage payouts go to the holders of Siafunds, their equity token.
Equity tokens are used to finance the development of the network, but are not needed to access the services provided by the underlying protocol.