Cobalt is very different from other yield farming projects in that it uses an income-based yield model. This is a more sustainable, realistic model that can provide high, long-term yields. This is possible because just like a real business, Cobalt generates a revenue. This revenue is solely derived from transfer fees. Whenever a user transfers CBT, 5% of the transaction value is distributed to stakers, the other 5% is burned permanently, furthermore increasing the value of each CBT token. The more tokens you stake, the more fees you will earn, this is the reason why there is no fixed APY. The burning mechanism goes on until only 5 million tokens are left, this will be the final supply. After the final supply is reached, users will continue getting yields, as the 5% transfer fee is still present.