By now, most people have heard of Bitcoin and cryptocurrencies. Behind these cryptocurrencies is something called blockchain, which is one of the fastest growing financial technologies in the world, and also the backbone of the cryptocurrency marketplace.
The formal definition of blockchain is "a digital ledger in which transactions made in bitcoin or another cryptocurrency are recorded chronologically and publicly," but blockchaining is proving to serve many more purposes than to simply support cryptocurrencies. In the world of advertising and marketing (and other industries), it's being considered as a way to eliminate the need for credibility and trust between parties by essentially micromanaging every transaction.
“By adopting blockchain technology, publishers and advertisers can use their unique blockchain keys to verify transactions. This prevents disreputable resellers from tricking buyers to purchase ads on clones of popular URLs. By looking at blockchain keys instead of domain names, all parties can trace back to the genuine source of the transaction and avoid scams.”