Purchases must be made in-store, online, or through the BK app or website. Image Credit: ShutterstockIn the United States, Burger King offers free bitcoin when you buy a burger. Dogecoin will be the primary crypto asset available to BK clients.When clients spend $5 (£3.65) or more at Burger King in the United States, they will get a $5 (£3.65) credit on their Robinhood account.Source: CNBCDogecoin is the primary cryptocurrency that BK customers will get, but some may also have the opportunity to win bitcoin or ether. To claim your crypto-assets, you must be a member of Robinhood.Users must enter a code at certain areas to make their purchase in a BK, on the BK app, or online to get the crypto reward.Customers will be able to claim one crypto reward every day from a total prize pool of 2 million dogecoin, 20 bitcoins, and 200 ethereum.It is only valid from November 1st until November 21st, 2021.When BK Brazil revealed that Dogecoin payments for the Dogpper, a dog food served at BKs in Brazil, were now accepted, it was a big deal.To purchase a Dogpper, you’ll need three doge, and it’s named after the BK Whopper.Dogecoin must be sent to a BK Brazil wallet to purchase the Dogpper, although the treats may also be bought using fiat cash.There will be a limited amount of non-fungible tokens created to honor McRib’s 40th anniversary, which McDonald’s announced in October. Ten lucky fans will each get an NFT as a gift.McDonald’s assertions are as follows:“McRib NFTs are digital versions of the fan-favorite sandwich, almost as saucy as the McRib itself, and we’re giving them away to a few lucky fans on Twitter beginning November 1,”Retweet the Sweepstakes Invitation tweet between November 1 and November 7 for a chance to win. The McRib NFT will…