ChainCatcher news, according to official sources, Circle announced that its Circle Research has released the Refund Protocol, a smart contract that supports stablecoin payments for non-custodial and on-chain dispute resolution, built for the composability and transparency of on-chain commerce, supporting lock-up periods, arbitrator-mediated refunds, and early withdrawals based on off-chain agreements.In addition, the refund protocol also supports on-chain dispute resolution and USDC payment refunds without the need for custodianship or trust from centralized entities.