Solstice is a [Yield Layer] protocol that aims to introduce institutional-grade yield products onto the chain to achieve DeFi composability. Institutional-level income strategies such as Delta-Neutral Funding Capture, tokenized corporate credit, and Treasury yield exposure have all been limited by compliance boundaries that public chains cannot cross. Solstice was created to bridge this gap. Solstice's yield assets encapsulate permissioned off-chain strategies in standard on-chain containers. Users only need to invest stablecoins, which can be converted into composable interest-bearing tokens (Yield-Bearing Tokens) and freely circulate in the lending market, DEX liquidity pool and payment scenarios. Institutional investors can directly connect to the underlying strategies offline through compliant funds; while retail users can obtain tokens mapping the fund on the chain. In this way, offline earnings are eventually settled on-chain for users.