DJED is the first formally verified stablecoin protocol. The use of formal methods in the programming process has greatly contributed to the design and stability properties of Djed. Using formal techniques, the properties are proven by mathematical theorems:

*Peg upper and lower bound maintenance: the price will not go above or beyond the set price. In the normal reserve ratio range, purchases and sales are not restricted, and users have no incentive to trade stablecoins outside the peg range in a secondary market.

*Peg robustness during market crashes: up to a set limit that depends on the reserve ratio, the peg is maintained even when the price of the base coin falls sharply.

*No insolvency: no bank is involved, so there is no bank contract to go bankrupt.

*No bank runs: all users are treated fairly and paid accordingly, so there is provably no incentive for users to race to redeem their stablecoins.

*Monotonically increasing equity per reserve coin: under some conditions, the reserve surplus per reserve coin is guaranteed to increase as users interact with the contract. Under these conditions, reserve coin holders are guaranteed to profit.

*No reserve draining: under some conditions, it is impossible for a malicious user to execute a sequence of actions that would steal reserves from the bank.

*Bounded dilution: there is a limit to how many reserve coin holders and their profit can be diluted due to the issuance of more reserve coins.

Djed stability mechanism is based on a collateral ratio in the range of 400%-800% for $Djed and $Shen. ADA prices fluctuations are offset by Shen, covering shortfalls and guaranteeing the collateralization rate.

The ADA reserve pool is not managed by market makers, but by users who mint the $Shen reserve coin and add ADA to the pool. This provides a decentralized aspect to the $Djed mechanism. $Shen holders are incentivized to provide liquidity through fees.

As $Djed can be over collateralized (up to 8x), the risk of $Djed being unpegged decreases. This means that for every 1 $Djed minted, there are 3–7 dollars worth of $ADA in the reserve pool. If the ratio falls below 400%, users will not be able to mint $Djed, and $Shen holders won’t be able to burn their $Shen. So in the event of a market dip there is a security blanket for $Djed holders that ensures its sustainability. The minting of new $Shen is also supervised in order to maintain the balances stabilized, and ensure there will always be enough ADA in the pool to provide a dollar equivalent value to the $Djed when burning it.

You can mint DJED and SHEN directly from its platform or on any Cardano top DEXs.

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