Overview sYUSD is the yield-bearing, staked version of YUSD. When you deposit YUSD into the staking contract you receive sYUSD, which: Represents your proportional share of the staking pool. Automatically accrues BTC funding-rate yield. Appreciates in value relative to YUSD over time. Launch exchange rate: 1 sYUSD = 1 YUSD Afterwards: 1 sYUSD > 1 YUSD as rewards accumulate. The StakedYUSD smart contract implements the ERC4626 Token Vault standard for composability. This popular standard is widely used for onchain reward-accruing; thus, it is expected that other user interfaces beyond the Aegis.im dAPP may likely support YUSD staking in the future. Various deposit and redeem functions are exposed, enabling staking with or without a slippage threshold, and with or without an ERC2612 Permit signature authorizing the transfer of YUSD.