Ignis is an essential part of the Ardor platform. It is the main child chain - fully featured and permissionless for everyday transactions with low fees.
Ignis supports a unique type of privacy which is out of the box, the privacy mechanisms includes: coin shuffling, and encrypted messages which can be shared securely with third parties.
Use Ignis to experiment and build public applications with all the features available on the Ardor platform. You don't need any permission, simply install the software, download the blockchain, get some tokens from an exchange (or exchange with ARDR tokens on chain) then start using the APIs and coding. It is really that simple.ddddd
Ignis is the exclusive chain for stateless lightweight smart contract development. Use Ignis to deploy your contracts even if they will eventually interact with other child chains.
Some of its features include:
- Lightweight contracts provide a layer of automation on top of the Ardor platform APIs. They are not executed by every blockchain node, this is quite different from how traditional contracts are executed. This flexible design allows for rapid development and deployment of contracts, which can also interface with external systems. The stateless lightweight contracts are much safer than the traditional stateful smart contracts.
- Privacy - All Ignis transactions are stored in a public Ledger available for anyone to view or verify. Some use cases however, require a higher level of privacy. Ignis supports the coin shuffling algorithm which allows several users to shuffle equal amounts of tokens into newly initialized recipient accounts, without any connection to the source accounts.
- Advanced Transaction Control - Ignis supports a sophisticated multi-signature feature called account control. Transactions submitted from an account under such control are subject to a mandatory approval procedure. Asset transactions can similarly be restricted using the asset control feature. 
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