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Djed: The Superior Stablecoin

Stablecoins seem simple: they track the price of a currency and that’s it. But is the tracking mechanism that obvious to implement? Spoiler: no. This bear market (2022) proved it with the Luna crash due to an issue with their pegging algorithm, the mechanism in charge of maintaining a stable price for their UST stablecoin. However, some stablecoins are implemented in such a rigorous way that they might be the actual winners of the stablecoin war. Today, I want to talk about a superior stablecoin implemented by COTI on the top of Cardano: the Djed stablecoin.

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1. What is the Djed stable coin?

Djed is a stablecoin based on an algorithmic design. It uses smart contracts to ensure price stabilization. It operates by keeping a reserve of base coins, and minting or burning stablecoins and reserve coins.

Here is an overview of the stablecoins, by category (“fiat-backed”, “crypto-backed” and “algorithmic”):

Stablecoins Ecosystem


Djed is both “crypto-backed” and “algorithmic”. It uses the strength of smart contracts to ensure that the price is stable based on a crypto reserve asset.

How does Djed work?

To mint 1 DJED:

You can send the equivalent of 1 USD in ADA (e.g: if ADA is worth $2, then send 0.5 ADA) through a smart contract:

And you will have 1 DJED back:

-To sell 1 DJED:

When selling 1 Djed, there is a burning of the token taking place:



To finally give you back the dollar equivalent in ADA:

-Now what if there is not enough ADA pay back the user:


Because of the variability of the ADA available, we want to avoid a bank run of a crash of the system when people want to sell their stablecoin. The solution to that problem is called SHEN.

SHEN is a “reserve coin” ensuring that the whole stablecoin mechanism works despite high price volatility of ADA or lack of availability of ADA in the pool:

The whole system operates by keeping a reserve of base coins, and minting and burning stablecoins and reserve coins. The contract maintains the peg of stablecoins to a target price by buying and selling stablecoins, using the reserve, and charging fees, which accumulate in the reserve. The ultimate beneficiaries of this revenue stream are holders of reserve coins, who boost the reserve with funds while assuming the risk of price fluctuation:

In the following, the “SC”(StableCoin) is DJED and “RC” (“ReserveCoin”) is SHEN:

Djed Autonomous Contract


Also, a last important point, Djed and ADA Pay plan to work together:

I will let you think about the potential.

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2. The reliability of Djed

After the Luna crash drama, it’s fair to ask: why would Djed be more secure? Well, I read their very (very) impressive whitepaper that you can find here.

All the mechanisms are mathematically proved, making the pegging mechanism “formally correct”. I will give you some examples.

One of the theorems is proving that the peg mechanism won’t break solely because of a market crash:

Peg Robustness

This is essentially to make sure that this can’t happen:

LUNA Crash


Another theorem is proving that no bank runs can happen based on 2 stablecoin holders selling at the same time:

No Bank Runs


To finally conclude after some equations that: “the following theorem shows that, provided that the exchange rate remains constant, the equity per reservecoin always increases.” proving that no bank runs can actually occur.

Then, there are stuff happening that I don’t even understand (I have a degree in Maths) like the following art work:

Djed Art

Another reason why the project is very reliable: the algorithm is based on a collateral ratio in the range of 400%-800% for DJED and SHEN. ADA price 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.

For every 1 DJED minted, there are 3–7 dollars worth of ADA in the reserve pool.

3. How to play Djed as an investment?

One of the first things to notice if you’re an investor is that DJED, ADA and COTI are connected to each other:

ADA – COTI


Being the issuer of Djed, COTI assumes the responsibility of publishing the smart contracts for the stablecoin and being the front end engaging with funds, enterprises, developers and others who wish to mint both the stablecoin and the reserve coin used as part of the pegging algorithm.

As the provider of this service, COTI collects fees on both the minting and burning of Djed and of the reserve coin.

It’s possible to convert such ADA fees to COTI coins, initially by buying COTI directly in the market and supporting the demand for COTI, then by depositing such COTI in COTI’s treasury, for the benefit of the treasury users. It’s a real win-win and a great opportunity for the COTI ecosystem.

In other words, if Djed gets adopted, ADA and COTI get some traction too.

And regarding prices, It’s fair to say that ADA will be an amazing entry point when Bitcoin finishes dropping:

ADA Price

Investing in Cardano is believing in Djed but also in the whole VC fund it’s becoming through catalyst. You can see the future of Cardano as a VC fund using ADA for founding and DJED as a currency to pay.

But COTI is also another investment idea if you want to play Djed taking over, down 75% from its all-time high:

COTI Price


With unique addresses rising:

COTI Unique Addresses
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4. Conclusion

I like the triangular system maintaining the Djed stablecoin structure involving DJED, ADA and SHEN. The formal code backing the mechanism with clear theorems making sure that catastrophic scenarios don’t happen (e.g: bank run, unpegging) makes it sound very reliable and stable. The fact that the ecosystem is built on the top of Cardano with the opportunity to use Djed to pay through ADA Pay makes it also eligible for real use cases like… Paying for things! If you think Djed is the future of stablecoins, the logical investment is ADA and COTI as these blockchains will gain in credibility and will secure the stablecoin: an increase in demand will lead to an increase in prices.

Thanks for reading.
n.b: this is not financial advice

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