Ignis is the public and permissionless core child chain of the Ardor platform. Ignis enables anyone to deploy lightweight smart contracts in Java and automate on-off chain business processes using a library of more than 250+ APIs. Application and service end-users never need to directly interact with the blockchain because the “bundling” system allows businesses and dapp owners to sponsor transaction validation fees for their users. The project is maintained by the developers at Jelurida and receives frequent feature upgrades.