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Ethereum ERC-20 FOUR to Solana SPL FOUR token Wormhole Bridge Manual

The Solana Wormhole bridge enables ERC-20 FOUR to bridge to SPL FOUR available on the Solana blockchain. The Wormhole bridge uses decentralized cross-chain oracles (i.e. guardians) operated by a set of node operators that include top Solana validators and other ecosystem stakeholders whose incentives are strongly aligned with Solana and Serum (Solana.com, May 2021).

The Wormhole Bridge

The Wormhole is a bidirectional decentralised ERC-20 / SPL token cross-chain bridge that enables existing assets such as FOUR to be moved seamlessly between Ethereum and Solana blockchain. According to Solana.com, the Wormhole is not a blockchain network, it uses the consensus of both chains it bridges, while guardians perform computation upon observing the on-chain events and sign Validator Action Approval resulting in mint or burn process. The Bridge enables the cross-chain token bridging in both directions. The smart contract locks the ERC-20 FOUR sent from the Ethereum, while the equivalent amount of FOUR SPL is minted on Solana. When the SPL FOUR needs to be bridged back to ERC-20 FOUR, the smart contract puts in an SPL FOUR burn request to the Bridge, and the ERC-20 FOUR are released from the reserves. This process ensures that the total and circulating token supply doesn’t change.

Wormhole v1 & v2

Due to the Wormhole bridge update from v1 to v2, SPL FOUR tokens that have been bridged from Ethereum to Solana using Wormhole v1 must be bridged back to Ethereum using Wormhole v1. After bridging back to Ethereum, the ERC20 FOUR tokens can be bridged back to Solana using Wormhole v2.

*Follow the link to Wormhole v1: https://v1.wormholebridge.com/
*Follow the link to Wormhole v2: https://www.wormholebridge.com/

Ethereum ERC-20 FOUR token information:

Solana Blockchain SPL FOUR token information (Wormhole V1):

Solana Blockchain SPL FOUR token information (Wormhole V2):

Solana SPL FOUR Markets:

⚠️On 20.3.2022 we have discovered that the FOUR/SOL LP on Solana Raydium is not active (i.e. https://www.raydium.io/liquidity/?ammId=2J7YTEW987B3B4D4Bm2MsmBHm1Mm7ybM5rUpSypJ28U9). We have noticed from the official telegram Raydium group that a lot of complaints were made to admins that pools are no longer accessible. For unknown reasons, LPs were disappearing from Raydium. Until the matter is resolved the FOUR/SOL LP is suspended. The new pool will be established when technically possible.

What do you need?

  • MetaMask wallet
  • FOUR that you want to bridge
  • ETH for gas
  • Phantom wallet (i.e. Solana blockchain wallet)
  • SOL for gas

Note: Phantom wallet is a browser extension for Chrome, similar to MetaMask, that allows you to manage your assets.

To set up your Phantom wallet visit https://www.Phantom.app/

The Bridging Process Overview — bridge FOUR tokens back to Ethereum

(1) Open Wormhole bridge web page; (2) Connect the MetaMask wallet and Phantom Solana wallet; (3) Set the amount of FOUR tokens you want to transfer; (4) Execute the transfer, and; (5) Check the balance.

Note: It is not recommended to do transactions with small amounts on Ethereum. It’s too expensive.

(1) Wormhole bridge v1

Follow the link to open the Wormhole bridge: https://v1.wormholebridge.com/#/move?from=SOL&token=FOUR

(2) Connect Wallets

Connect Ethereum MetaMask wallet and Solana Phantom wallet.

(3) Set the ammount

Enter the amount of FOUR tokens you want to transfer

(4) Execute the transfer

Enter the amount of FOUR tokens you want to transfer and execute bridging by confirming the transfer and wait for the progress popup windows.

(5) Check the balance

After the bridge process confirmation, you can check the FOUR balance in your MetaMask blockchain wallet.

The Bridging Process Overview — bridge FOUR tokens to Solana

(1) Open Wormhole bridge web page; (2) Select source network and connect the MetaMask wallet (3) Select target network and connect the Phantom Solana wallet; (4) Send FOUR tokens; (5) Execute the transfer, (6) Redeem tokens, and; (7) Check the balance.

Note: It is not recommended to do transactions with small amounts on Ethereum. It’s too expensive.

(1) Wormhole bridge v2

Follow the link to open the Wormhole bridge: https://wormholebridge.com/#/transfer

(2) Select source network (Ethereum) and connect the MetaMask wallet

*Select a token FOUR

*Enter the number of tokens you want to transfer

(3) Select target network and connect the Phantom Solana wallet

*Select the Solana network and connect your Phantom Solana wallet.

Note: double-check destination address for FOUR token on Solana (RFn7mUjf24UFMBdDVmoggAii4gyHdRDDqmKzGVbkd8c)

(4) Send FOUR tokens

*You will have to approve tokens and confirm the transaction.

(5) Execute transfer

*Once tokens are approved you will have to click on transfer.

*Are you sure the pop-up window appears and you need to confirm the transfer?

(6) Redeem FOUR tokens

*You will have to wait until the transaction is confirmed

*After all, confirmations click on redeem button

*Wait for wallet approval.

Note: you will have to approve several transactions.

*Once done check your wallet

Disclaimer

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