Yearn.Finance

YFI（全称yearn.finance），人称&ldquo;大姨夫&rdquo;。yearn的前身是iearn，最初是稳定币聚合理财协议；因为Curve问题，创始人后来又回去接手社区分叉出yearn。yearn.finance是一个去中心化的生态系统，也可以认为是一个去中心化理财协议的聚合器。它桥接了Aave、Compound和dYdX等去中心化借贷平台，并在众多协议之中自动换仓，通过多DeFi整合借贷，配置最高收益组合。当用户把代币存入yearn.finance时，它们会被转换为yTokens，并定期重新平衡，以选择最有利可图的借贷服务。
YFI是yearn.finice的治理代币，只分配给用一定yToken提供流动性的用户。YFI没有预采、预售、团队也没有预留，全靠yearn.finance获得，它力求成为最去中心化的代币。虽然生态系统的大部分是由Andre Cronje建立，但YFI的控制权已经被转移到一个多签名钱包上，需要9个参与者中的6个同意才能生效。作为一个真正的去中心化协议，yearn.finance生态系统的任何变化总是通过链上提案和投票来完成。
当前该协议基本围绕四个主要产品：
1.&nbsp;&nbsp;Earn
Earn是Yearn的收益聚合器，可通过贷款协议为用户收益进行优化。用户可以将资产存入Yearn，它的智能合约在Aave、Compound和dYdX等DeFi协议中搜索最高的回报率，并借给该协议。该协议在智能合约交互上进行了再平衡&mdash;&mdash;这意味着每次用户存入或提取资产时，该协议都会重新评估可以找到最高回报率的位置，并相应地转移资产。这通常听起来很棘手，因为这不仅需要了解哪种协议可以提供最高的APR，还需要了解APR的波动和可能的变化。Yearn具有内置策略来评估、最小化和消除风险。
2.&nbsp;&nbsp;Zap
Zap是精简的协议，可在不同的DeFi资产之间进行转换。DeFi中当前并非支持所有资产1：1转换。这意味着用户可能必须进行一系列代币交换，将其初始代币交换为一种甚至几种中间代币，然后才能最终拿到其目标代币。Zap简化了该过程，为用户在后端处理所有中间交换，使其成为无缝的代币交换。
3.&nbsp;&nbsp;A&nbsp;PR
APR是一个信息仪表盘，Yearn在其中跟踪各种DeFi代币在不同借贷协议的当前APR。这样做的目的是为了提供信息，使用户以上帝视角了解最佳套利策略。
4.&nbsp;&nbsp;机枪池Vault
这类似于其他DeFi产品中的流动资金池。用户可以在这些资金池中存入资产，然后将其投资于流动性挖矿计划（例如 Compound 的 COMP 代币），然后再交换回原始资产。Yearn Vault 负责寻找投资流动性的最佳方法，从本质上讲，这是用户通过流动性挖矿赚钱的一种躺赢方式。

Ethereum，Polygon，HECO，Fantom，BSC，Solana，Arbi，Gnosis，Avalanche

0x0bc529c00c6401aef6d220be8c6ea1667f6ad93e

0xda537104d6a5edd53c6fbba9a898708e465260b6

0xb4f019beac758abbee2f906033aaa2f0f6dacb35

0x29b0Da86e484E1C0029B56e817912d778aC0EC69

0x88f1a5ae2a3bf98aeaf342d26b30a79438c9142e

BXZX2JRJFjvKazM1ibeDFxgAngKExb74MRXzXKvgikxX

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0xbf65bfcb5da067446CeE6A706ba3Fe2fB1a9fdFd

0x9eaac1b23d935365bd7b542fe22ceee2922f52dc

大姨夫 (YFI) 简介

<div class="time" data-v-0d3678a8="">
<div data-v-0d3678a8="">2021年2月5日</div>
</div>
<div class="info" data-v-0d3678a8="">Yearn Finance：官方发布了Yearn v1y DAI保险库攻击事件漏洞披露报告。根据报告，保险库损失了1100万DAI，攻击者获利估计为270万DAI，约270万美元（此前披露为280万美元）。</div>

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