Bob Wootton: Can Blockchain clean up the ad industry?

Blockchain is not only the latest in a line of buzzy technologies to invade marketers’ consciousness, it is also a means of solving many of the problems that exist in the advertising supply chain.
But first things first. The question jumping to most marketers’ lips is still probably ‘what is it?’
To précis Wikipedia, a Blockchain is a continuously growing list of digital records, called blocks, which are linked and secured using encryption.
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