推动区块链应用的稳定币。

Quantstamp Labs
August 27, 2020

2020 has been a milestone year for stablecoins, which experienced record-setting transaction volumes of more than $90 billion in Q1 alone. Their role in decentralized finance—a sector that has also experienced massive growth— is also broadening.

Transactions within a decentralized system can often be processed faster and more securely. However, volatility, uncertainty and global regulations have kept digital assets from being widely adopted. Stablecoins combine the transparency, security, and privacy of a digital asset with the stability of traditional currency. However, as stablecoins make up an increasingly higher proportion of our global currency, security is crucial. Being pegged to real-world assets means that stablecoins represent real and significant value.

Whether government-sponsored, exchange-driven and crypto-native stablecoins, Quantstamp is proud to help support the mainstream adoption of blockchain technology through numerous stablecoin audits. Here are some of the stablecoins we’ve secured that are changing the future of our financial system:


Government-Sponsored

xSGD

What: A regulated Singapore dollar, fully collateralized by SGD | Issuer: xFers

Xfers is a Southeast Asia’s leading Fintech platform for digital businesses, under the project name of StraitsX. Singapore is often considered one of the most progressive jurisdictions around the world when it comes to financial regulations. 

xSGD provides an opportunity for local consumers who want to explore the benefits of digital assets while maintaining regulatory assurances.


Naira Token (NGNT)

What: An ERC 20 token that’s fiat-backed with Naira  | Issuer: BuyCoins

NGNT is an ERC 20 token that’s fiat-backed with real Naira—the official currency of Nigeria—held in licensed banks. The token bridges the Naira with the advantages of digital currency, giving cryptocurrency traders, business owners, and software developers the ability to transact with the Naira across the blockchain. 

With Nigeria being the largest market in Africa, the Naira Token offers a huge advantage for users that want to perform fast, publicly-verifiable, borderless transactions.


BIDR

What: A regulated stablecoin collateralized by the Indonesian Rupiah | Issuer: Tokocrypto

BIDR is pegged to Indonesia’s fiat currency and runs on the Binance Chain. Stablecoins can be a key part of fiat money spreading around the crypto ecosystem. The Indonesian public has a very high interest in blockchain technology and cryptocurrencies, so BIDR will help people wanting to buy and trade cryptocurrencies with the Indonesian Rupiah. 

In June 2020, Binance launched the stablecoin on its own blockchain in collaboration with Tokocrypto, an Indonesian crypto exchange.


Exchange-Driven


Binance GDP Stablecoin

What: A GBP-pegged stablecoin | Issuer: Binance

Quantstamp was honored to be chosen to audit BGBP,  the very first stablecoin on Binance. While there were other stablecoins on the market at that time including Coinbase’s USDC, Facebook’s Libra, MakerDAO’s Dai, and Bitfinex’s Tether, BGBP is the first major stablecoins to be pegged to the British pound. 

At the time of its launch, Binance’s Chief Financial Officer announced that this would be the first of many stablecoins on the Binance Chain. 


eToro eToken

What: A USD-denominated stablecoin built on the Libra Network | Issuer: eToro

By using blockchain technology to eliminate the need for certain intermediaries, Facebook’s Libra blockchain aimed to reduce the cost of financial services and enhance economic activity in underserved areas. 

Tokens play an important role in smart contract platforms like Libra. eToro’s eToken was not only one of the first tokens developed for the Libra blockchain, but it was also the first Libra token standard to receive adoption by developers. 


Crypto-Native

Maker Foundation (Dai)

What: Decentralized cryptocurrency stabilized against the US dollar | Issuer: MakerDAO

MakerDAO is an open-source project on the Ethereum blockchain and a Decentralized Autonomous Organization. The Maker Protocol, also known as the Multi-Collateral Dai (MCD) system, lets users generate Dai by leveraging assets approved by “Maker Governance.” Dai is a decentralized, unbiased, collateral-backed cryptocurrency soft-pegged to the US Dollar.

In March 2020, when Dai fell off its peg of roughly $1 USD, the DeFi community rallied together to form the Dai Backstop Syndicate, collectively functioning as a "buyer of last resort.”

Quantstamp stepped in to quickly secure the syndicate software protecting the community assets, and is also providing a smart contract coverage warranty via Chainproof to cover the value of the Backstop Contract.


Curvy DeFiDollar

What: An upcoming  index of stable coins that uses Defi primitives to stay near the dollar mark | @defidollar

DUSD is a stablecoin that is collateralized by Curve Finance liquidity provider (LP) tokens. It uses chainlink oracles for its stability mechanism. It uses Curve to handle the logic around integrating with lending protocols and token swaps; which are essential ingredients for the stability of DUSD. It provides yields to those who hold DUSD, and it also has a staking mechanism for additional peg safety.


xDai

What: USD stablecoin and multi-chain staking token | Issuer: xDai Stake

xDai is a crypto asset pegged to Dai that operates on a sidechain with near instantaneous transaction times and low transaction fees. The chain’s native xDai tokens are created by locking Dais in an Ethereum smart contract and can be redeemed for Dai once again at a later date. 

Use cases include peer-to-peer payments, community currencies, rewards for event participants, and more. In 2019, attendees of ETHDenver were able to make purchases with the stablecoin. In another case, the xDai chain has been used to manage currency trading among communities in Kenya.


rDai

What: Redeemable Dai token enabling the transfer of accruing interest | Issuer: Decentral

rDai (redeemable Dai) allows you to invest your money in an interest-generating pool, used for collateralized loans. rDai tokens allow you to direct the flow of interest earned from your Dai to other parties while maintaining full control of the principal Dai that you staked.

You can also decide who benefits from the generated interest: you can keep it yourself, donate it to a community fund or charity, or direct it to a dApp you are using.


Amples

What: Fully algorithmic, synthetic commodity money | Issuer: Ampleforth

Ampleforth is not a stablecoin, rather, an adaptive money that aims to fulfill many of the goals that stablecoins fulfill today. It does so with a twist: supply changes daily. The AMPL protocol automatically adjusts supply in response to demand. How does this work? The Ampleforth protocol receives exchange-rate information from trusted oracles, and propagates that to holders of its units (Amples) by proportionally increasing or decreasing the number of tokens each individual holds. By doing so, each person’s percent ownership of the network remains fixed.

“Being audited by Quanstamp was important to us,” said Ampleforth CTO Brandon Iles. “They hold their clients and themselves to the highest security standards. We know that identifying any risks and vulnerabilities is critical to mitigating the risk of any future hacks.”


Good Dollar

What: USD Stablecoin distributing UBI programmatically | Issuer: eToro

GoodDollar is a non-profit, social innovation initiative attempting to create a framework for generating and distributing universal basic income. eToro is GoodDollar’s corporate sponsor and provided the initial funds. 

The live beta-launch is planned for the fall of 2020, which will include the GoodDollar protocol and currency. 

More Stablecoins

TrueUSD

What: A regulated stablecoin collateralized by USD | Issuer: TrustToken

TrueUSD was the first regulated stablecoin fully backed by the US Dollar. It’s also the first asset token built on the TrustToken platform, a place to create asset-backed tokens that can be bought and sold around the world. 

Their mission is to expand access to financial opportunities and global trade, and its US dollar holdings are distributed in various bank accounts belonging to different trust companies. 


StablyUSD

What: USD collateralized and FDIC-insured stablecoin | Issuer: Stably

StablyUSD is a reserve-backed stablecoin designed to work across multiple blockchain protocols. Stably, the issuer of StablyUSD tokens, has a centralized model where every token issued is backed with an equivalent unit of fiat currency in a reserve managed by Stably.

In the future, Stably plans to release more stablecoins backed by other national currencies along with commodities and precious metals, such as gold and silver. They also intend to expand to other blockchains with better speed, scalability, and security.

What’s Next

While there are issues to address in regards to scalability, security and legislation, stablecoins have a huge opportunity for growth. They have the potential to unlock cheaper, faster, and more efficient transactions across the world, and better serve the 1.7 billion people globally that remain underbanked.

As digital currencies begin to make up more of our global currency, effectively securing these stablecoins will be a key part of building the trust that traditional fiat has today. 



Quantstamp 实验室
2020年8月27日

2020年对于稳定币来说是具有里程碑意义的一年,仅在第一季度就经历了创纪录的900多亿美元的交易量。它们在去中心化金融中的作用--这个领域也经历了大规模的增长--也在不断扩大。

分散系统内的交易往往可以更快、更安全地处理。然而,波动性、不确定性和全球监管使数字资产无法被广泛采用。稳定币将数字资产的透明度、安全性和隐私性与传统货币的稳定性相结合。然而,随着稳定币在我们的全球货币中占的比例越来越高,安全性至关重要。与现实世界的资产挂钩意味着稳定币代表了真实而重要的价值。

无论是政府赞助的、交易所驱动的还是加密原生稳定币,Quantstamp ,我们很自豪地通过众多稳定币的审核,帮助支持区块链技术的主流应用。以下是我们已经获得的一些稳定币,它们正在改变我们金融系统的未来。


政府赞助的

xSGD

特点:受监管的新加坡元,完全由新币抵押|发行人。 xFers

Xfers是东南亚领先的数字企业金融科技平台,项目名称为StraitsX。在金融监管方面,新加坡通常被认为是全球最先进的司法管辖区之一。 

xSGD为那些希望在保持监管保证的同时探索数字资产好处的本地消费者提供了机会。


奈拉代币(NGNT)

特点:一种ERC 20代币,以奈拉为货币支持|发行人。 BuyCoins

NGNT是一种ERC 20代币,它以真实的奈拉--尼日利亚的官方货币--为法定银行持有的货币支持。该代币将奈拉与数字货币的优势连接起来,让加密货币交易商、企业主和软件开发者能够在区块链上用奈拉进行交易。 

尼日利亚是非洲最大的市场,奈拉代币为想要进行快速、可公开验证的无边界交易的用户提供了巨大的优势。


BIDR

什么:一个受监管的稳定币,由印尼盾|发行人进行抵押。 Tokocrypto

BIDR与印尼的法币挂钩,并在Binance链上运行。稳定币可以成为法币在加密生态系统中传播的关键部分。印度尼西亚公众对区块链技术和加密货币有非常高的兴趣,因此BIDR将帮助想要用印尼盾购买和交易加密货币的人。 

2020年6月,Binance与印尼加密交易所Tokocrypto合作,在自己的区块链上推出稳定币


交流驱动


Binance GDP 稳定币

什么:一个英镑挂钩的稳定币|发行人。 Binance

Quantstamp 很荣幸被选中审核BGBP,这是Binance上第一个稳定币。虽然当时市场上还有其他稳定币,包括Coinbase的USDC、Facebook的Libra、MakerDAO的Dai和Bitfinex的Tether,但BGBP是第一个与英镑挂钩的主要稳定币。

在推出时,Binance的首席财务官宣布,这将是Binance链上众多稳定币中的第一个。 


eToro eToken

特点:基于天秤座网络建立的美元计价稳定币|发行人。 eToro

通过使用区块链技术消除对某些中介机构的需求,Facebook的天秤座区块链旨在降低金融服务的成本,并增强服务不足地区的经济活动。

代币在Libra这样的智能合约平台中扮演着重要的角色。eToro的eToken不仅是最早为Libra区块链开发的代币之一,也是第一个被开发者采用的Libra代币标准。


Crypto-Native

基金会(傣族)

特点:去中心化的加密货币对美元汇率稳定|发行人。 MakerDAO

MakerDAO是Ethereum区块链上的一个开源项目,也是一个去中心化的自治组织。Maker协议,也被称为多币种Dai(MCD)系统,让用户通过利用"Maker治理"批准的资产产生Dai。Dai是一种去中心化、无偏见、有抵押品支持的加密货币,与美元软挂钩。

2020年3月,当Dai跌出1美元左右的价位时,DeFi社区团结起来,成立了Dai后援团,集体发挥"最后买家"的作用。

Quantstamp 介入,快速保障保护社区资产的集团软件,并通过链防提供智能合约保障担保,以覆盖后援合约的价值。


Curvy DeFiDollar

特点:即将推出的稳定币指数,使用Defi基元保持在美元大关附近|。 @defidollar

DUSD是一个稳定币,它由Curve Finance流动性提供者(LP)代币进行抵押。它的稳定性机制使用链路奥术。它使用Curve来处理与借贷协议和代币交换整合的逻辑;这些都是DUSD稳定性的重要成分。它为那些持有DUSD的人提供收益率,它还有一个额外挂钩安全的盯盘机制。


xDai

特点:美元稳定币和多链盯梢代币|发行人。 xDai Stake

xDai是一种与Dai挂钩的加密资产,在侧链上运行,交易时间近乎瞬时,交易费用低。该链的原生xDai代币是通过将Dais锁定在Ethereum智能合约中创建的,并可在日后再次兑换Dai。 

用例包括点对点支付、社区货币、活动参与者的奖励等。在2019年,ETHDenver的与会者能够用稳定币进行购买 。在另一个案例中,xDai链已被用于管理肯尼亚社区之间的货币交易


rDai

特点:可兑换的Dai代币,可以转让应计利息|发行人。 中心化

rDai(可赎回Dai)允许您将您的资金投资于一个产生利息的池子,用于抵押贷款。rDai代币允许您将您的Dai赚取的利息流向其他方,同时保持对您押注的本金Dai的完全控制。

你也可以决定谁从产生的利息中受益:你可以自己留着,捐给社区基金或慈善机构,或者直接捐给你正在使用的dApp。


安培

内容:完全算法化的合成商品货币|发行人。 Ampleforth

Ampleforth不是一个稳定币,而是一个自适应货币,旨在实现稳定币今天实现的许多目标。它这样做有一个转折:供应每天都在变化。AMPL协议会根据需求自动调整供给。这是如何工作的呢?安普尔福斯协议从可信的神谕处接收汇率信息,并通过按比例增加或减少每个人持有的代币数量,将其传播给其单位的持有者(安普尔)。通过这种方式,每个人对网络的所有权百分比保持固定。

"接受Quanstamp的审计对我们来说很重要,"Ampleforth CTO Brandon Iles说。"他们以最高的安全标准要求客户和自己。我们知道,识别任何风险和漏洞对于降低未来任何黑客的风险至关重要。"


好美元

什么:美元稳定币以程序化方式分发UBI|发行人。 eToro

GoodDollar是一个非营利性的社会创新倡议,试图建立一个产生和分配全民基本收入的框架。eToro是GoodDollar的企业赞助商,并提供了初始资金。

计划在2020年秋季推出实盘测试版,其中将包括GoodDollar协议和货币。 

更多稳定币

真正的美元

特点:以美元为抵押的受监管稳定币|发行人。 TrustToken

TrueUSD是第一个完全由美元支持的监管稳定币。它也是第一个建立在TrustToken平台上的资产代币,这个平台是一个创建资产支持代币的地方,可以在世界各地进行买卖。 

他们的使命是扩大获得金融机会和全球贸易的机会,其持有的美元分布在不同信托公司所属的银行账户中。 


稳定的美元

什么:美元抵押和FDIC保险的稳定币|发行人。 Stably

StablyUSD是一种有储备金支持的稳定币,旨在跨多个区块链协议工作。Stably是StablyUSD代币的发行方,采用中心化模式,每一个发行的代币都有一个等值单位的法币支持,由Stably管理的储备金支持。

未来,Stably计划发布更多由其他国家货币支持的稳定币,以及大宗商品和贵金属,如黄金和白银。他们还打算扩展到其他速度、可扩展性和安全性更好的区块链。

下一步工作

虽然在可扩展性、安全性和立法方面还有一些问题需要解决,但稳定币有巨大的发展机会。它们有可能在全世界范围内释放出更便宜、更快、更高效的交易,并更好地服务于全球17亿仍未得到充分银行服务的

随着数字货币开始在我们的全球货币中占据更多的份额,有效保障这些稳定币的安全将是建立传统法币如今所拥有的信任的关键部分。 



November 11, 2020

Quantstamp Community Update - October 2020

‍Audit of Ethereum 2.0 client Teku, blockchain insurance, Open DeFi, virtual events, and more media coverage... here’s what happened at Quantstamp in October.‍

November 5, 2020

Why Bitcoin is Capturing Enterprise Attention

MicroStrategy made headlines this summer as the first publicly-traded company to buy Bitcoin as part of its capital allocation strategy. Since then, other companies have followed suit. Learn how current economic conditions and the unique properties of Bitcoin have driven these decisions.

October 28, 2020

Formally Verifying Hedera Hashgraph's Stablecoin Framework

Quantstamp created and formally verified a specification for Hedera Hashgraph stablecoins. This simplifies the process of creating safe stablecoins and also makes easier for partners to safely integrate them.

October 27, 2020

Quantstamp Completes Audit of 2nd ETH 2.0 Implementation

Quantstamp has now completed its audit of Teku, the Ethereum 2.0 client developed by ConsenSys. Quantstamp also audited Prysm by Prysmatic Labs.