NFTHashi is a simple, versatile, and trust-minimized cross-chain bridge that supports transferring the NFTs between the different chains.

Connext's Amarok is used for cross-chain messages.

A Brief History

NFTHashi has been started being developed at a hackathon back in April 2022; ETHAmsterdam of ETHGlobal.

The team challenged the cross-chain NFT implementation using Connext and continued developing and releasing NFTHashi.

Background of the team:

We are BlockBase; a blockchain dev company based in Japan. First, we started building the NFT minting platform Chocomint, supporting multiple EVM chains to mint NFT, and we wanted to add cross-chain functionality with Connext so that user does not worry about which chain to deploy their NFT. That’s how the idea of NFTHashi was born. — said Taiju Sanagi from NFTHashi.

NFTHashi aims to solve a couple of problems:

• Users have to pay high gas prices to trade NFTs on Ethereum, even though there are more solutions such as L2 and sidechain

• Most NFTs are currently concentrated in the Ethereum blockchain, making it difficult for the emerging chains to activate their NFT ecosystems

• A closed ecosystem in the original chain of the NFTs

The Future is Cross-Chain NFTs

• The increasing number of L2s and chains will lead to a fragmentation of users, data, and liquidity, and the importance of asset bridging will keep increasing.

• Every blockchain product will move towards being able to support cross-chain use cases.

• The cross-chain NFT market is currently untapped, with the potential to cross-pollinate multiple communities in every domain.

• Cross-chain NFTs can create many new use cases that did not exist before:

  • Cross-chain NFT games

  • Cross-chain NFT collections

  • Cross-chain NFT governance

  • Cross-chain NFT marketplaces

  • Cross-chain lending using NFTs as collateral

How it works:

A message is passed by a relayer between 2 chains but, there is a 30 minutes latency period before it becomes valid. Any watcher can prove that the message is invalid and slash it during this time.

• It’s a fraud-proof system of optimistic rollups by Connext.

Why Connext was chosen?

Trust Minimization and Security

Connext Network was chosen because of the minimized trust assumptions in its security model.

Connext provides trust-minimized cross-chain messaging and it’s built on Nomad - an optimistic communication protocol that requires only 1 good actor in the space to remain secure. This is the most trust-minimized solution currently available beyond native bridges (Ethereum-L2s, IBC) that are not available across separate domains.

• Connext bridge and interoperability protocol are the most secure design among EVM-compatible chains.

• The Connext architecture is based on smart contracts, and a process flow that prevents anyone from losing funds, or even worse, from getting them stolen.

How can you build your own xChain Application with Connext?

STEP 1: First, learn what are xApps

STEP 2: Learn about building cross-chain apps and what you can build

STEP 3: Let’s get more technical! Here is the xApp starter kit

STEP 4: You want to test your knowledge and have fun in hackathons with Connext? Sure, here is our:

1. Hackathon Guide

2. Hacker Kit

STEP 5: You started building a xApp and want to step up your game with some help? Apply for a grant from Connext Network!

NFTHashi SDK

NFTHashi provides the contract integrated bridge function as SDK for the users who want to create a more advanced NFT utilizing cross-chain.

If you are a creator, it is easy to create NFTs that are natively cross-chain by adding the NFTHashi SDK into the NFT contract:

• A chain with minted NFTs,

• A chain with current NFTs,

• The itinerancy of NFT bridges,

• Other NFTs whose metadata changes according to these attributes.

How to deploy the SDK? Learn here.

Try NFTHashi’s Testnet.

How to use NFTHashi? Learn here.

More About NFTHashi

Website | Blog | Docs | Twitter | Discord

About Connext

Connext is a network for fast, trustless communication between chains and rollups. It is the only interoperability system of its type that does this cheaply and quickly without introducing any new trust assumptions. Connext is aimed at developers looking to build bridges and other natively cross-chain applications. To date, over $1.5b in transactions have crossed the network.

Website | Bridge | Docs | Twitter | Discord

FujiDAO is a cross-chain borrowing aggregator. It aims to optimize loan expenses for DeFi users by constantly monitoring borrow markets and whenever there is a better rate, it automatically refinances the whole pool of debt. FujiDAO aims to make borrowing more accessible to users while the borrowing markets in DeFi are still maturing, and the infrastructure that will make the market liquid and fluid is still being built. Connext Network is used for its cross-chain enhancements.

Why should you borrow on FujiDAO when you could use the base protocol directly? Many useful reasons why:

• cost optimization — minimize the interest paid by borrowers

• economics of scale — pooling funds together reduces the transactional costs by sharing fixed costs

• time-saving — removal of constant attention users need to pay to find optimal rates

• smooth UX — manage easily all debt positions from one place

How it works

Fuji DAO creates vaults where users deposit a single asset as collateral and borrow against it another asset. For example, in the ETH/DAI vault, users deposit ETH and borrow DAI. Thus, isolating debt positions allows for better risk management and the most effective interest rate optimizations.

All-in-one smart borrow

When users borrow from a Fuji vault, the needed liquidity gets sourced directly from the base protocol proposing the best rate (Compound, Aave, dYdX, and more to come).

The protocol keeps track of users’ individual positions and assures the overall vault’s health through a classical liquidation mechanism. To avoid liquidation, users need to maintain the proportion of their debt to the amount of collateral they provided above a certain threshold.

Fuji constantly scans borrow markets

When market conditions change and there’s a provider with a lower borrow rate for a certain asset, the protocol triggers a rebalance operation and refinances the whole position of the vault. In that way, users instantaneously get a better rate on their loans without the need to take any action on their side.

A Brief History and the Birth of xChain Borrowing Aggregator Idea

FujiDAO was born during ETHGlobal “MarketMake” hackathon in January 2021 and this is where the founders met.

In ETHGlobal’s recent hackathon ETHAmsterdam, FujiDAO Team hacked ‘Floan’ and became one of the 13 Finalists.

FujiDAO Team came up with the idea of Floan thinking of more users wanting to avoid operating in Mainnet due to the high gas fees.

They designed a system that enables the user to bypass the cumbersome process by offering a 1-click beam of their debt position (collateral + debt) to the desired chain where they will enjoy cheaper borrowing rates. Connext Network was used to bridge the assets as a signed xcall in the project. 

Currently, the team is working on bringing FujiDAO to the cross-chain world by building an xChain Lending Aggregator with Connext.

FujiDAO Team will build the first xChain Lending Aggregator among their already gained title as the first Lending Aggregator ever in DeFi.

What is xChain and how different is it from multichain? 

Multichain is where you use dApps like Aave, Yearn or Curve on multiple interfaces on many chains. They act like different apps, siloed from each other.

Cross-chain, or as Connext names it, xChain is: 

• When there is one interface that aggregates data from all chains so that users have a single consolidated experience.

• xChain lets you recognize user balances and actions from any supported chain regardless of where the user initiates their interactions from.

xCall = Routing transactions to any chain. 

Connext lets users call to any receiving chain contract in a single step, or even directly connect your contracts to one another.

xApp = App that has a single interface allowing users to access liquidity or data from any chain. 

Users don’t even have to understand which chain they are on, it’s just seamless interaction.

Cross-chain borrowing: deposit collateral on Chain A, borrow loan on Chain B

Users will be able to add collateral on chain A and borrow another asset on chain B with the best rate across chains thanks to FujiDAO’s routing system which ensures users get the best borrow rate and so seamlessly with Connext‘s xChain operations explained above.

Connext lets builders create secure xChain dApps (xApps). Connext Network is the only way to build xApps that retain the security of underlying blockchains.

Team behind FujiDAO

With 6 passionate #BUIDL’ers in total behind FujiDAO; Boyan (Co-founder), Daigaro (Co-founder), @iafhurtado (Product Lead), @0xtiagofneto (Solidity Developer), @guill__om (Frontend Developer) and @PragueBrewer (Community Lead). Boyan was in Web2 and finance before co-founding FujiDAO. Daigaro was in the Aerospace industry for 9 years, started learning Solidity and has been building ever since. 

About FujiDAO

FujiDAO is a Borrowing Aggregator optimizing your costs in DeFi by automatically refinancing your loans across different markets. The app is already live on Ethereum & Fantom and will be available soon on Polygon, Arbitrum and Optimism.

Website | Blog | Docs | Twitter | Discord

About Connext Network

Connext is a network for fast, trustless communication between chains and rollups. It is the only interoperability system of its type that does this cheaply and quickly without introducing any new trust assumptions. Connext is aimed at developers who are looking to build bridges and other natively cross-chain applications.

Website | Bridge | Docs | Twitter | Discord

What is Stakeall Finance?

Stakeall Finance is a fully decentralized non-custodial DeFi platform focused on building DeFi strategies that are basically a series of actions wrapped in a single transaction. 

These innovative DeFi strategies open a new gateway for users to participate in DeFi with:

• Better returns — help in providing a higher yield

• Minimal opportunity cost

• Great staking experience

A Brief History

Just like many other leading DeFi protocols; Stakeall is a platform that’s been started being developed at a hackathon back in June 2021; Hack Money of ETHGlobal and awarded as one of the finalists.

After extensive development and receiving grants from Connext Network and Aave, Stakeall launched its Beta version in December 2021.

Stakeall Finance went live on Mainnet in April 2022 with the integrations of 6 different protocols:

• 1inch Protocol: With 1inch integration, users can buy staking tokens using decentralized applications in one go.

• AAVE Protocol: With AAVE integration, users can borrow assets for staking in a single transaction.

• PoLido Protocol: PoLido is integrated for liquid staking for MATIC tokens. Users can bridge stMatic tokens to the Polygon Network.

• Graph Protocol: With Graph integration, Users can delegate GRT tokens to indexers.

• Polygon: Users can directly stake MATIC tokens to validators in the Polygon ecosystem.

• Connext Network: With Connext integration, users can perform cross-chain staking by transferring assets from Polygon network.

Why Connext was chosen?

1. Security: Connext bridge and interoperability protocol have by far the most secure design among EVM compatible chains. The Connext architecture is based on smart contracts, and a process flow that prevents anyone from losing funds, or even worse, from getting them stolen.

2. Message passing: Unidirectional and bi-directional message passing.

3. Instant liquidity bridging and call data passing: This allows you to abstract the gas interface away from the user by letting the protocol call the function on the receiving chain.

Thanks to Connext’s network of routers and liquidity providers, users can enjoy fast and cheap liquidity (without having to wait for 30 minutes) while enjoying an experience as safe as the blockchains it connects. We have actually designed this monitoring of the transactions happening via Connext to be lucrative.

Current DeFi Strategies

• Multi validator staking: In a single click, users can stake MATIC or GRT to multiple validators. Learn how to use here.

• Buy and stake: Users can buy staking tokens from DEXs and stake to validators in a single transaction. Learn how to use here.

• Leverage stake: User can borrow assets from AAVE protocol and directly stake to validators and earn more rewards. Learn how to use here.

• Cross-chain staking: All three strategies can also be executed from Polygon Chain. Users can stake GRT to indexers from Polygon(Previously Matic) network. Funds are transferred using the Connext Network bridge from Polygon to Mainnet for staking.

• Everything happens in 1 transaction for the user. It helps saving gas costs, especially during Leverage staking, as your Aave Position can be managed on Polygon Network effectively.

Shuttle System: Liquid Staking Shuttle For Lido on Polygon

Shuttle System for Lido on Polygon is live on Mainnet since June 3.

With Stakeall Shuttle System, users can stake Matic tokens on the Polygon chain and save high transaction fees.

What is Shuttle System?

The shuttle system is a smart contract-based cross-chain staking protocol that allows users to stake Matic on Polygon. 

How Does it Work?

After a significant amount of Matic is deposited to the shuttle, the Shuttle system sends Matic to Ethereum Mainnet for staking and receives equivalent stMatic on Polygon Network.
Once the shuttle arrives on Polygon Network, users can claim an equivalent stMatic token on Polygon.

Why is the Shuttle System significant?

• Gas efficient

• Good for small investors

• Higher rewards

• Great staking experience

Learn: How to use the Shuttle System

Stakeall Finance

Website | dApp | Blog | Twitter | Discord | Telegram

About Connext

Connext is a network for fast, trustless communication between chains and rollups. It is the only interoperability system of its type that does this cheaply and quickly without introducing any new trust assumptions. Connext is aimed at developers who are looking to build bridges and other natively cross-chain applications. To date, over $1.5b in transactions have crossed the network.

Website | Bridge | Docs | Twitter | Discord