By now you all understand what blockchain is, right? Never mind: you can always read this article.
Even if you don’t have time, trust us: it’s an indelible ledger that’s almost impossible to hack. But online broker TD Ameritrade and Havas New York did just that, by taking a counterintuitive retro approach. Utilizing blockchain’s “op return” function – an 80-character memo of a transaction – the agency used more than 60 transactions to create an ASCII image of the TD Ameritrade logo. Proving once again that advertising, like life, will always find a way.