draft-ietf-oauth-transaction-tokens
Transaction Tokens
Transaction Tokens (Txn-Tokens) are designed to maintain and
propagate user identity, workload identity and authorization context
throughout the Call Chain within a trusted domain during the
processing of external requests (e.g. such as API calls) or requests
initiated internally within the trust domain. Txn-Tokens ensure that
this context is preserved throughout the Call Chain thereby enhancing
security and consistency in complex, multi-service architectures.