In today's multi-workload / micro-service environments there are client authentication mechanisms to protect communication between services. This provides consistent server-to-server trust but does not address the protection of a transaction as it traverses through the different workloads. This talk will discuss the recently adopted Transaction Token draft, in the IETF OAuth working group, which defines a mechanism to protect the immutable data of a transaction, protecting it as the completion of the transaction intent is accomplished via multiple backend workloads.