exchange. This current rate is found by sending the request to an

independent and neutral Oracle node and through the Oracle

services. The Oracle node connects to the external API endpoint and

fetches the rate for us and signs it to assure that the rate is true.

14.1.10 Consensus

Unlike in public Blockchains or even Hyperledger Fabric, Corda does

not need a universal acceptance for a transaction to be validated.

Only the parties participating in the transaction validate it by signing

the transaction with their respective keys. Also, the notary checks

and prohibits any double spends in the transactions.

14.2 CordApp

As shown in Figure 14.7, Corda distributed application or CordApp is

crafted to enable Corda to run on multiple nodes in parallel and

reach a consensus to update their respective ledgers, as follows: