Mastercard joins hands with blockchain companies, including Ripple and Consensy. Taiwan explores the addition of a new business category to enable crypto firms to establish industry associations and self-regulatory guidelines. NFT marketplace OpenSea discontinues its royalty enforcement tool, citing lack of support and concerns from creators. The SEC gains approval to question Terraform Labs' co-founder as part of its case against the company. Bankrupt Celsius advances its restructuring plan, sending creditors a proposal to sell assets to the Fahrenheit Group.