Gary Cohn, formerly the White House's top economic adviser, has joined blockchain startup Spring Labs Inc.'s board of advisers.

Cohn most recently was director of the U.S. National Economic Council, the chief economic adviser to President Donald Trump. Previously, he was president and COO of Goldman Sachs Group Inc.

Springcoin Inc., which does business as Spring Labs, is a startup building Spring Protocol, a blockchain-based network that allows its participants to exchange information without sharing the underlying source data.