This paper will focus on explaining the basics of blockchain and its potential applications for marketing and advertising as well as existing hurdles and necessary steps and agreements to be implemented on the industry level. However, it’s worth noting the span of blockchain use cases across other industries from which advertising should take insight: finance will see blockchain used for cross-currency payments and mortgages, the public sector for citizen identity verification and medical records, and retail for supply chain oversight and loyalty programs – just to name a few.