TL;DR:
RIF On Chain launched its V3 version, introducing multi-collateral support for USDRIF on the Rootstock network. Until now, the protocol relied exclusively on RIF as backing for its stablecoin issuance. With this update, DOC, a stablecoin backed by Bitcoin that operates natively on Rootstock, joins as a second collateral, expanding the system’s scaling capacity and improving its resilience under adverse market conditions.
The V3 architecture organizes collateral into two coordinated buckets. The RIF bucket remains the protocol’s growth engine and issues RIFPRO, the residual token that absorbs volatility. The DOC bucket contributes stability and capital efficiency, issuing ROCR as its own residual token. Both buckets feed a single fungible supply of USDRIF. Users can deposit into either one and choose between minting the stablecoin, the corresponding residual token, or a combination of both, depending on their exposure profile.
To coordinate this dual model, V3 incorporates the Multi-Collateral Guard, a central component that manages collateral across buckets, redistributes risk when necessary and maintains the overall balance of the system. The protocol’s core rules remain unchanged: the minting and redemption logic stays intact, collateralization rules remain in force and the fee structure is not modified. The update extends the protocol’s capabilities without altering its proven foundation.
The upgrade was processed through on-chain governance, including the submission of the proposal, community voting and its execution via a changer contract. The transition is completely non-disruptive: it was implemented through proxy contract upgrades, with no need for users to migrate funds or adjust positions.
V3 arrives in response to the boom in stablecoin activity on Rootstock. Over the past year, the ecosystem welcomed assets such as USDT0 and USDb, adding omnichain liquidity and options oriented toward corporate payments. Rootstock operates with merge mining alongside Bitcoin, inheriting the security of its proof-of-work network while supporting EVM-compatible smart contracts.
