Inspiration
Hedera's ecosystem has just begun. The NFT ecosystem also lacks a lot. GrayNFTLabs will make Hedera NFT more accessible to people and also make it a versatile experience.
What it does
People can mine and hold Hedera NFTs easily from the GrayNFTLabs LaunchPad. People can also utilize NFT on Ethereum by using Bridge. It is also available for sale in markets such as OpenSea.
How we built it
Technical Stacks Wallet: HashPack, Metamask NFT Labs Backend: Node.js NFT Labs Frontend: React NFT Labs Bridge: Node.js and Solidity
Bridge Flow.
- User send NFT to Heder SmartContract. (Lock NFT) and send HCS message to Hedera Network.
- Bridge Validators monitoring the SmartContract.
- User request Minting to Ethereum Bridge SmartContract.
- Ethereum Bridge SmartContract call to ERC721 Collection Contract and call mint.
- Validators monitoring the message from Ethereum.
Challenges we ran into
- Lack of examples utilizing Hedera SmartContract.
- Verifying Hedera message is not possible on the Hedera SmartContract.(So we verify Off Chain).
- Considering about UX: Since we need to use two wallets, we had to think about asking users to sign in from two wallets more conveniently.
Accomplishments that we're proud of
This is only project support NFT Launchpad and Bridge on the Hedera. Can be traded on OpenSea that NFTs minted by Hedera.
What we learned
- Utilize Hedera SmartContract.
- Studying and Implement basic BlockChain bridge.
What's next for GrayNFTLabs
- Supports many of the BlockChain Network. (Hedera to Klaytn, Hedera to Cosmos. vice versa too.
- Implment NFT Staking and share income logics
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