The Blockchain Solution to Our Deepfake Problems

Blockchain has always seemed to me like a solution looking for a problem, which isn't a criticism. The laser, the transistor, and the integrated circuit all lingered, underutilized, until either the technology evolved, a complementary technology matured, and/or some clever entrepreneur enabled their wide and disruptive adoption. Or take barcodes, which were first deployed with middling success to track train cars, and only took on the eponymous universality of "UPC codes" when cash registers became more than mechanical contraptions. Currencies such as Bitcoin may well be only the first iteration of a blockchain-powered technology, but one that could disappear in a puff of smoke and a pool of investor tears if the speculative bubble pops. However, the notion of a decentralized, public ledger of consensus-driven facts about the world--which is what a blockchain fundamentally is--has a utility well beyond wild-eyed, crypto-anarchist dreams.