 Japanese bank Nomura Holdings Inc and cryptocurrency partners Ledger and CoinShares launched Komainu, a custodian to safeguard digital assets for financial institutions, on Wednesday. The joint venture, announced in 2018, is regulated by the Jersey Financial Services Commission, the companies said in a statement. Komainus debut comes as more established financial firms explore offering custody and other services for cryptocurrencies such as bitcoin, and other digital assets. 