Mysten Labs has open-sourced confidential payment channel code for Sui, giving developers a practical reference for private onchain payment flows that hide transfer amounts and balances while keeping settlement verifiable. The release builds on Sui’s confidential transfers public beta, which is now live on Devnet. The design lets token issuers enable a confidential mode where balances and transfer amounts are encrypted onchain, while sender and receiver addresses remain visible. That keeps the system closer to regulated payments infrastructure than full-anonymity privacy coins.