World Wire subscribers transacted using bridge assets, many of which were stablecoins. Stellar makes issuing assets easy, and was built with stablecoins in mind.
IBM World Wire piloted connecting larger-scale financial institutions to Stellar via a publicly-permissioned network.
The Stellar Consensus Protocol prevents forks, keeping all assets on one global ledger and allowing for immediate settlement of payments.
The pilot sought to cover 72 countries and 47 currencies, requiring a network that can handle high transaction volumes relative to other blockchains.
IBM believes an open-source standard for payments should be stewarded by a nonprofit foundation.