DRW and Marex completed an over-the-counter total return swap on Derivnex that referenced S&P Dow Jones Indices' iBoxx USD Liquid Investment Grade Index, marking the first use of a fully tokenized index in such a transaction. Kaiko tokenized and distributed the benchmark on Canton Network, while the counterparties managed the derivative through a shared blockchain interface using International Swaps and Derivatives Association standards. Ripple Custody version 1.43 added Canton support on October 5, allowing customers to store and transfer Canton Coin and CIP-56 assets while retaining signing keys in their own vaults. Canton operates independently of Ripple and does not use XRP, XRPL or RLUSD for settlements. The firms plan to add cash-settlement and collateral-management functions on Canton.