Practical Byzantine Fault Tolerance is usually a consensus algorithm released while in the late 90s by Barbara Liskov and Miguel Castro. pBFT was designed to work proficiently in asynchronous(no upper bound on when the reaction into the ask for will be obtained) systems. It is optimized for small overhead https://financefeeds.com/oracle-orcl-shares-surge-24-in-a-record-breaking-week/