TL;DR:
- DIA partnered with River to provide oracle price feeds for satUSD across five blockchains and fundamental valuation for satUSD+.
- The satUSD market feeds cover Ethereum, $BNB Chain, BOB, Arbitrum and Base, aligned with River’s omnichain architecture.
- For satUSD+, the Contract Exchange Rate methodology is applied, reading the exchange rate directly from the vault contract.
DIA partnered with River to deploy oracle infrastructure on top of the protocol’s omnichain stablecoin system. The integration covers two assets with distinct valuation logics: satUSD, the overcollateralized stablecoin backed by BTC, ETH, $BNB and liquid staking tokens; and satUSD+, the yield token users receive when staking satUSD.
The difference between both assets lies in the fact that satUSD operates in secondary markets across multiple chains, making market price aggregation methodology appropriate. satUSD+ presents a different challenge: its value is not determined by the last trade recorded on a DEX, but by the exchange rate the vault contract guarantees. Applying market prices to a yield token with scarce liquidity exposes lending protocols and vault strategies to stale or manipulable data, precisely when risk models need them most.
DIA: Two Methods, One Oracle Stack
For satUSD, market price feeds are deployed on Ethereum, $BNB Chain, BOB, Arbitrum and Base, aligned with River’s omni-CDP architecture, where users deposit collateral on one chain and mint satUSD on another via LayerZero. Each feed operates on DIA’s Decentralized Feeder Network: independent feeders extract real-time trading data, aggregate it through a verifiable two-step process on DIA’s own blockchain, and publish the result onchain, without intermediaries or opaque pipelines. Any protocol can trace each price back to its source transactions.
For satUSD+, the Contract Exchange Rate methodology is applied. Rather than observing secondary markets, the feed reads the satUSD+/satUSD rate directly from the vault contract on $BNB Chain and calculates fair value based on what the protocol itself guarantees at redemption.
The River team emphasized that, for an omnichain system like theirs, having verifiable prices derived from onchain data is non-negotiable, especially for lending markets and vault strategies that integrate satUSD+.
The integration illustrates a crucial principle for the institutional DeFi sector: assets whose value is defined by contracts, reserves or portfolios require fundamental valuation methodologies, not just market observation. The combination of both feeds within a single protocol’s stack demonstrates how these approaches function as complements, not alternatives.
