The Securities Exchange Commission has requested a 28-day delay in Coinbase's appeal as part of a long-running legal battle between the agency and cryptocurrency exchanges over how to classify digital assets. The SEC requested an extension of the deadline from February 14 to March 14, which was the agency's original deadline for responding. The legal dispute between Coinbase and the SEC centers on whether digital assets should be classified as securities or whether they represent a new type of financial instrument.