Grayscale bought a Wall Street Journal front page ad to promote Zcash, an unusual mainstream marketing push for a crypto product. The campaign also included a f

Grayscale bought a Wall Street Journal front page ad to promote Zcash, an unusual mainstream marketing push for a crypto product. The campaign also included a full-page inside ad for its Zcash fund, ZCSH, underscoring a broader drive for digital-asset adoption.