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River partnered with DIA to deploy oracle infrastructure on top of the protocol’s omnichain stablecoin system. The integration covers two assets with different valuation mechanisms: satUSD, an overcollateralized stablecoin backed by BTC, ETH, BNB and liquid staking tokens; and satUSD+, the yield token users receive when staking satUSD.
The key distinction is that satUSD’s price is determined through secondary markets across multiple chains, making market price aggregation an appropriate approach. By contrast, satUSD+ is not priced by the most recent decentralized exchange trade; its value is tied to the exchange rate that the vault contract guarantees. Applying market prices to a yield token with limited liquidity can expose lending protocols and vault strategies to stale or potentially manipulable data—particularly when risk models depend on timely and reliable inputs.
For satUSD, market price feeds are deployed on Ethereum, BNB Chain, BOB, Arbitrum and Base, aligned with River’s omni-CDP architecture. In this setup, users deposit collateral on one chain and mint satUSD on another via LayerZero.
Each feed runs on DIA’s Decentralized Feeder Network. Independent feeders extract real-time trading data, aggregate it through a verifiable two-step process on DIA’s blockchain, and publish the result onchain without intermediaries or opaque pipelines. The design allows protocols to trace each published price back to its underlying source transactions.
For satUSD+, the feed uses a Contract Exchange Rate methodology. Instead of observing secondary markets, it reads the satUSD+/satUSD rate directly from the vault contract on BNB Chain and calculates fair value based on what the protocol guarantees at redemption.
The River team said that for an omnichain system, verifiable prices derived from onchain data are essential—particularly for lending markets and vault strategies that integrate satUSD+. The integration is positioned as an example of how institutional DeFi can match oracle design to asset fundamentals: when an asset’s value is defined by contracts, reserves or portfolios, fundamental valuation methods are required rather than relying only on market observation.
By combining both feed types within a single oracle stack, the integration demonstrates how market-based and contract-based approaches can function as complementary components rather than competing alternatives.
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