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Espresso Systems, which is using zero-knowledge proofs to build a private and scalable blockchain, raises a $29.9M Series A led by Greylock and Electric Capital (Anita Ramaswamy/TechCrunch)

Anita Ramaswami / TechCrunch:
Espresso Systems, which is using zero-knowledge proofs to build a private and scalable blockchain, raises a $29.9M Series A led by Greylock and Electric Capital— If blockchain technology is to reach true mass adoption, it will have to become cheaper and more efficient.