> For the complete documentation index, see [llms.txt](https://docs.moneyonchain.com/rdoc-contract/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.moneyonchain.com/rdoc-contract/integration-with-roc-platform/introduction-to-roc.md).

# Introduction to RoC

RIF On Chain is a suite of smart contracts whose purpose is providing:

* A RIF-collateralized stable-coin, Dollar On Chain, (USDRIF)
* A passive income hodler-targeted token, RIFPro (RIFP)

RIF On Chain runs on the [RSK network](https://www.rsk.co/) and uses the RIF token as reserve assets to back RIF On Chain. You can find more info on the RIF token and decentralized economies [here](https://www.rifos.org/).

The rationale behind this is that deposits of RIF help collateralize the USDRIF and RIFPro absorbs the USD-RIF rate fluctuations.

RoC system is a network of cooperative smart contracts working together to ultimately provide a US dollar pegged ERC20 Token (USDRIF). In this sense, the contracts we can categorize them into 4 categories:

* *RoC state Contracts*: They keep RoC state variables and logic (MoC, MoCState, MoCBucketContainer, MoCSettlement, MoCBurnout)
* *RoC pure logic Contracts & Libraries*: Functional extensions of the above merely to have responsibility separation and contracts size (aka deploy fee) low. (MoCHelperLib, MoCLibConnection, MoCConverter, MoCExchange, MoCConnector, MoCRiskProxManager, MoCInrate, MoCWhitelist, MoCBase)
* *Tokens*: Tokens backed by the system (OwnerBurnableToken, StableToken, RiskProToken)
* *External Dependencies*: External contracts the system relies on, in this case the Oracle or price provider; this could evolve independently of RoC system as along as the interface is maintained. (PriceProvider)

Also you can read official information about [RoC architecture and RIF On Chain's smart contracts](/rdoc-contract/readme.md)