Advertisers can pay for advertising and cash back rewards using the token, that is correct. They'd buy the token from current holders at current market prices. We will honour any redemptions (advertisers buying advertising or paying for rewards) at the issue price. This means that holders cannot lose the value.
Once all our issued tokens are in circulation we will use advertisers funds to purchase back tokens as advertisers need them to issue rewards, which will ensure liquidity.
The formulae is described in the whitepaper.
Your CBC will be usable in a number of ways, either on our platform to buy goods or it can be traded / sold to any other counterparty.
Any ERC20 wallet can hold CBD, transfer / sell / or trade it.
We will honour the CBC for use on our platform, so we will accept CBC as a payment method.
Unfortunately, I cannot open whitepaper on the website
Could you provide with a link?