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What Is Kolibri USD (KUSD)? Complete Guide & Review About Kolibri USD

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What Is Kolibri USD (KUSD)?

Kolibri is an Tezos based stablecoin built on Collateralized Debt Positions (CDPs) known as Ovens. Kolibri uses CDPs (referred to as an Oven) to collateralize a soft pegged USD-stable value asset, kUSD.

Important Points Table Of Kolibri USD

BasicPoints
Coin NameKolibri USD
Short NameKUSD
Total Supply100,000,000
ExplorerClick Here To View
DocumentationView Document
WebsiteClick Here To Visit

How to Buy the Continental & Trade On Exchange?

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First Step

Buying KUSD Is Very Easy Task . Just Find Exchange Where KUSD Available & Buy Through Your Credit & Other Altcoin .

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Second Step

Once You Purchased KUSD. Now It Is Time To Store Your KUSD Or Start Trading On Exchange .

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Earn Passive Income

Stability Fee

A stability fee is applied to borrowed Kolibri . It is accrued in terms of kUSD. It is percentage based fee applied to all outstanding kUSD (borrowed kUSD + stability fee). Interest is assessed every minute (about every block on the Tezos chain). The stability fee is adjusted via governance to increase or decrease the incentives to borrow or repay kUSD if the asset loses a peg. Negative stability fees are not supported in Kolibri but may be added in the future via a contract upgrade.

Collateralization Ratio

In order to remain solvent, an Oven must maintain a minimum collateralization ratio. The collateralization ratio is computed as:

If a Oven drops below the collateralization ratio, then it is said to be under collateralized. Oven owners should take care to keep their position above the collateralization ratio, by either locking more XTZ or repaying kUSD when the collateralization ratio drops. The Kolibri system will prevent users from borrowing kUSD such that an Oven becomes under collateralized, or withdrawing XTZ to cause the Oven to become undercollateralized. However, the price of XTZ still fluctuates, which means an Oven can become undercollateralized without user action. At that point, a liquidation process kicks in to restore stability to the system.

Kolibri Risks

Kolibri smart contracts deployed (as with all software) run the risk of software bugs, some of which can compromise the overall security of a system. When systems have administrative controls there is also the risk of malicious actors abusing those controls for nefarious purposes.

Kolibri is no different, and has a number of risks associated with it. We’ve tried to keep things as simple as possible, had a security review done by a reputable company, and written extensive tests (unit + integration) to gain confidence that Kolibri operates as we expect it to, but with security there is no guarantee that it’s 100% safe to use.

Below they outline some of the risks that exist in the system. It’s an ever-growing document and likely not 100% inclusive of every risk within the system. If you think something is missing please ping us on twitter or come join discord!

Economic Risks

Until the stability fund grows in size, there’s a scenario where the economic model breaks if a black swan event were to occur within the Tezos ecosystem and the price crashes significantly. They have a very conservative 200% collateralization ratio per oven, and use a VWAP price feed to hedge against these risks but if the underlying collateral that backs the outstanding kUSD were to suddenly (and continue to be) worth significantly less, it’d remove the economic incentive to liquidate ovens and destroy any ability to stay at peg. In this black swan event we’d need to use the stability fund as a liquidator of last resort, but that will only be successful if we have enough funds to liquidate enough ovens to restore stability.

Token 

The Token contract is an FA1.2 Token Contract.

Kolibri FA1.2 token standard is available in the Tezos Improvement Proposal Repository.

The token contract was copied verbatim from SmartPy’s implementation on 11/02/2020 with some minor changes noted below

Upgrade Path Any contract which interacts with the Token contract should have a governable reference. When a new Token contract is deployed, then the references should be updated. Additionally, if the admin needs to be changed, then the Governor should call setAdmin on the Token contract.

Risks In The Tooling

Kolibri was built and compiled to Michelson (the native smart contracting language of Tezos) using SmartPy. SmartPy is currently open source (though not with the most recent versions hosted on GitHub/gitlab), but is pretty constantly changing and has not (as of writing this) undergone a formal security audit.

We’ve written extensive tests, but they all depend on SmartPy operating correctly, and if it’s doing something like optimizing out security checks or creating invalid Michelson, it’s possible that those issues could impact the security of the system as a whole. Writing compliers is difficult to do and one of the assumptions we’ve had to make about this system is that SmartPy is operating correctly and would also inform us of any major breakage they discover. We’re also in contact with them to hopefully help hedge against this risk, but this is largely an unpredictable factor.

No Current Proposals

There are no current proposals in the Kolibri Governance DAO.

Once you’ve connected your wallet, click “Create Proposal” below to submit a new proposal to the DAO.

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Disclaimer

Crypto investments come with high risk and you should always exercise caution when investing in any crypto asset. Investing in crypto carries a high level of risk, and may not be suitable for all investors. Any investment decisions made by you are made at your own risk and we are not responsible for any losses that may occur. Before investing, we recommend you consult a financial advisor to understand the risks and rewards associated with investing in crypto.

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