Coin Center's own pages list Van Valkenburgh as its Executive Director. Its Form 990 for the year ending December 2024 records him as Director of Research, which is the role he held through most of the organisation's first decade before the leadership changed.
His published work is where the position is set out rather than asserted. Recent pieces include an argument that regulators cannot invent a middleman where none exists, a letter to the Securities and Exchange Commission on First Amendment limits to its jurisdiction, an expert opinion filed with the Court of Appeal in the Netherlands supporting Alexey Pertsev's appeal in the Tornado Cash case, and a series of posts on the Blockchain Regulatory Certainty Act and the digital asset market structure bills. He has testified in Congress on behalf of Coin Center on these questions.