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该文是恢复Waves协议完整生态和全部功能的总体计划。 6 x3 @8 ]9 x. Y
2022年 4月2日，Neutrino协议稳定币 — USDN与美元脱钩。这是由于在Curve Finance的USDN流动性池中出现大量代币出售。与美元脱钩本身就很不幸，但我们看到问题继续出现。后续，基于Waves的贷款协议 Vires Finance 陷入了流动性危机，即“银行挤兑”—提供流动性的用户出于担心急忙从协议中撤出了自己的头寸。
6 c( e6 [ ]# l O% V* A这两个问题今天仍然存在。就Neutrino而言，USDN几乎已经回铆—恢复了两次。由于 2022 年 5月10日左右的 LUNA/UST 危机，第二次大规模脱钩发生。在撰写本文时，USDN为0.97美元。在Vires的情况中，用户提款受到限制，因为大部分存入的资金都已被借出。几个非常大的借款人阻止了存款人提取资金，贷款方必须还款，存款人才能撤出流动性。
& F5 r1 F7 q1 t. M, {, r本文将展示 Waves DeFi 协议已经采取的用来解决这种情况的措施，以及它们为何如此重要。不过，社区的大多数用户一直在等待一个完整的总体规划：即我们下一步将做什么以及我们如何看待解决问题的方法。 " M# u' u2 W+ i; w6 o$ p
这就是计划。 B9 @2 Z& H* y
恢复的步骤
4 a' s, H! h( F3 c! ]9 L$ j3 n l银行挤兑情况导致协议彻底崩溃，纠正它不是一件容易的事。然而，有两件事帮助我们度过了这场风暴。首先，Neutrino和 Vires Finance 团队立即采取行动寻找并提出解决方案。其次，Waves社区成员对这些提案的理解和快速投票。
6 a% t" `$ Y: Y6 f4 u修正铆钉 i( {# f8 |- d/ y
首先要解决的问题是脱钩。如果没有价值1美元的稳定币，后续计划将无法实施。 ; s' `+ b2 c6 N8 l; n$ D0 ?: m& F
投票#7：定义最大兑换金额参数
. Y5 ~0 Q" ]4 a5 i$ L) H& _" g· 这做了什么：更改了兑换参数，使USDN更容易通过套利恢复锚定。更改了之后，用户可以以更少的NSBT来将1美元的WAVES兑换成USDN。 . J [6 ~* F9 O; y: J
· 原因：以前，用户需要大量NSBT（Neutrino治理代币）才能直接与智能合约交互，并以硬编码的1美元汇率将USDN换成 WAVES。这限制了可以参与套利的用户数量（以脱钩价值在Curve池中购买USDN，然后以硬编码的1美元汇率将其卖给智能合约）。通过更改这些参数，需要的NSBT更少，因此，更多的用户可以参与到USDN回锚的过程中来。
7 O" P3 V" c4 m, z# x3 f% M: m· 结果：这效果很好，大量用户从Curve池中购买了大量的金额，并且为用户提供了数百万美金的套利收入，使USDN在过去两个月中两次恢复锚定。
3 Q4 E) `" A6 W/ z解决流动性危机
& y9 [0 {! Q; S; _ s第二个问题是在社区信心受到严重影响的情况下，如何将足够的流动性带回Vires Finance。如何在避免同样情况发生的前提下做到这一点？当前，只要新的流动性存入，就会被瞬间提取出来，这意味着速度最快的用户—通常是机器人—可以收回自己的存款，但大部分用户仍然无法提取存款。 6 _& g% F+ P$ ~* U }* I+ c. ~
将 WAVES/USDN/EURN 清算阈值设置为 1，所有资产的 最大借款APR设置为400 P+ U1 D/ ]# s+ g+ p
· 它意味着什么：所有借款人必须归还 99.98%的贷款以避免清算头寸。用户需要支付的贷款利率从原来的80%降低到40% 8 R. L' `0 o5 z6 k9 k
· 原因：这是对社区愤怒以及发现存在价格操纵的证据的反映。几个大户口借了大部分存款。我们意识到，如果这些借款被清算，问题将被迅速解决，因为它们的抵押品可恢复存款人需要的流动性。
5 }: s$ s0 s! R! q6 c, e) @· 结果：该提案被社区拒绝，因为用户希望保留自由市场原则，且认为提案过于严苛。 0 e" e5 t1 f" F
为 USDT 和 USDC 设置每日提款限额 7 u2 o4 I& a& ~. o" A# n2 m l
· 内容： |
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