论文标题
从区块链上收获：对耕作规程的调查
Reap the Harvest on Blockchain: A Survey of Yield Farming Protocols
论文作者
论文摘要
产量养殖代表了分散融资（DEFI）中极为流行的资产管理活动。它涉及提供，借贷或存放加密资产，以在不同的偏见市场上以交易费，利息或参与奖励的形式赚取收入。在这项系统的调查中，我们将耕作方案作为更广泛的偏移生态系统的汇总组成部分，该计划与原始层协议（例如分散交易所（DEX）和可容纳基金的协议（PLFS）相互作用。我们首先研究了在产量耕作智能合约中编码的运营，然后对各种产量耕作策略进行风格化的，参数化的模拟，然后对产量的耕作机制进行研究。我们对相关工作进行了详尽的文献综述，并为产量耕作方案建立框架，以考虑池结构，接受的令牌类型和实施策略。使用我们的框架，我们表征了市场上主要的收益汇总器，包括渴望的金融，Beefy和Badger Dao。此外，我们讨论了针对收益汇总者的轶事攻击，并概括了与收益养殖相关的许多风险。
Yield farming represents an immensely popular asset management activity in decentralized finance (DeFi). It involves supplying, borrowing, or staking crypto assets to earn an income in forms of transaction fees, interest, or participation rewards at different DeFi marketplaces. In this systematic survey, we present yield farming protocols as an aggregation-layer constituent of the wider DeFi ecosystem that interact with primitive-layer protocols such as decentralized exchanges (DEXs) and protocols for loanable funds (PLFs). We examine the yield farming mechanism by first studying the operations encoded in the yield farming smart contracts, and then performing stylized, parameterized simulations on various yield farming strategies. We conduct a thorough literature review on related work, and establish a framework for yield farming protocols that takes into account pool structure, accepted token types, and implemented strategies. Using our framework, we characterize major yield aggregators in the market including Yearn Finance, Beefy, and Badger DAO. Moreover, we discuss anecdotal attacks against yield aggregators and generalize a number of risks associated with yield farming.
