TD Ameritrade and Havas Placed an Ad on the Blockchain

Company claims it's the first of its kind

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Late last week, TD Ameritrade planted—well, technically, embedded—a flag when they created what they said was the first ad inserted within the bitcoin blockchain.

The ad, which appears on its own landing page, is made with ASCII art and composed of 68 different transactions on the blockchain—a technology that functions like a public, unchangeable digital ledger for logging transactions. Each row features a part of the image, with the letters and numbers written in part of the blockchain function called OP_Return that allows a small area of text “like the memo space on a check,” said Havas New York creative director Peter Gosselin.

Unlike ads on Google or Facebook, TD Ameritrade isn’t actually worried about anyone seeing its ad—made with $23.15

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