Mastering Blockchain - Second Edition

CorDapp

The core model of Corda consists of state objects, transactions, and transaction protocols, which when combined with contract code, APIs, wallet plugins, and user interface components results in constructing a Corda distributed application (CorDapp).

Smart contracts in Corda are written using Kotlin or Java. The code is targeted for JVM.

JVM has been modified slightly in order to achieve deterministic results of execution of JVM bytecode. There are three main components in a Corda smart contract as follows:

• Executable code that defines the validation logic to validate changes to the state objects.
• State objects represent the current state of a contract and either can be consumed by a transaction or produced (created) by a transaction. ...