JIN Network

smart contract relational graph
Deposit EOS and Mint JIN.
Swap token.
Add liquidity into market.
DAO status.

Inspiration

The first block of bitcoin blockchain we can see a message: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"

The 629,999 block of bitcoin blockchain, we can see a message: "NYTimes 09/Apr/2020 With $2.3T Injection, Fed's Plan Far Exceeds 2008 Rescue"

The virus has caused bank to print money indiscriminately.

The mission of cryptocurrencies has never been so clearer like today.

People need an extra option to protect their assets if traditional banks are not trusted.

JIN Netwokr's mission is provide a new way to save people's money and life.

We are building a decentralized bank and a free market for crypto asset trading.

Let's create an open finance network and free to use for anyone in the world.

Whether EOS is suitable for DeFi or not, We hope we are not alone.

What it does

In this project, we are building 3 things.

First one is a Bank, this is a DAI like protocol, can deposit EOS to issue a currency named JIN.

The different between DAI and JIN，

The deposit asset is 100% safety. System never clear user's deposit, even prices fell like March 12～13.
Can enjoy the staking reward. And not need to pay loan interest.
User pay 0.3% mint fee to the system. Mint fee will be share to the DAO member equality. This is a seigniorage in blockchain currency system.
JIN-bank is building for Holders, user never lost their deposit.
The currency mint action take a crypto asset as an anchor and never drop it. It's the shadow of crypto asset. Stay independent of the USD.

Second is a Dex, this is a Uniswap like protocol, allow user to create token market, and trade token, empowers developers, liquidity providers and traders to participate in a financial marketplace that is open and accessible to all.

It enables anyone to create new markets, provide liquidity, and build financial applications that could not have existed before.

Third，we save the cumulative price in the JIN-swap contract. So that we can create a decentralized price Oracle contract.

The price Oracle contract serve time-weighted average prices (TWAPs) .

Click the link for more details:

https://bloks.io/account/jinoraclesv2?loadContract=true&tab=Tables&table=avgprices&account=jinoraclesv2&scope=1&limit=100

Those 3 smart contarct work together like this :

How I built it

Build by eosio smart contract. And front-end build by vue framework.

Challenges I ran into

Designing and Implementing the solution. Than test all use case, act as the security auditor to test all smart contract action.

Accomplishments that I'm proud of

Finally, we success launch this project on Mainnet, It's not just a demo, it's a betterDAI and Uniswap on EOS.

It's a good beginning of EOS DeFi ecosystem.

What I learned

I think more deeply about the global economy. and learned to implement ideas with smart contracts.

What's next for JIN Network

JIN-bank is a protocol that describe a new way to issue currency.

We have implemented a EOS version in this hackathon.

And it can be implemented on other blockchain too.

Just like USDT can issue on many blockchain, JIN also can issue to other blockchain.

Our JIN-swap，can be the first fully decentralized AMM protocol on EOS. User can craete any market on JIN-swap, earn trade fees by providing liquidity.

The next step of JIN Network is make it become a real useful protocol. More user, more aseets locked, more blockchain support.

But before JIN Network can realy launch.

We have the following important things to improve: