Relink - Trustless Chainlink Relaying Service

Relink empowers new blockchains, or those with less focus, to access established services on the major chains.

Chainlink itself supports only a few chains at all. At the same time, the speed at which new chains are deployed is constantly increasing. Be it as L2s or even L3s or as another competitive L1s.

Relink has developed a proxy service solution that forwards the random data request to an officially from Chainlink supported chain and processes the result accordingly.

A Relink oracle network signs the data generated by Chainlink and passes the original data along with the signatures to the callback method. The signature checks in the consumer base contract mean that no data can be changed on the way from the relaying backend.

Getting Started

Configuration

Relink Proxy Addresses:

• Horizen EON Mainnet: 0xC8e11C15cf94a456209B7AbF110481Eb86B50C0c
• Horizen Gobi Testnet: 0x5f1bf0fDCCE9fA05CeBFf3071F1573fDb2C68206

Relink Oracle Addresses for Signature Verification:

• 0x3D5b65E984D7D3a346B8d5065Cd8b3ACA8032013
• 0x08A9aF3408cE11f336eAd8336a3Fd959AbB917E8
• 0xf4Bb2ae87C61b4a1EaADf5e6809DFb8801E22f58

Prerequisite

1. Copy .env.example and name the file .env
2. Set environment variables accordingly
3. Run npm install
4. Run npx hardhat clean
5. Run npx hardhat compile

Deploy Consumer Example

npx hardhat deploy.consumer.example 0x3D5b65E984D7D3a346B8d5065Cd8b3ACA8032013 0x08A9aF3408cE11f336eAd8336a3Fd959AbB917E8 0xf4Bb2ae87C61b4a1EaADf5e6809DFb8801E22f58 --network proxyMainnet --proxy 0xC8e11C15cf94a456209B7AbF110481Eb86B50C0c --threshold 2

Initiate Consumer Example Randomness Request

Horizen EON Mainnet: npx hardhat --network proxyMainnet init.consumer.request --addr 0x7d27dA43512e4d6a6D1B3a9a5fC41e190734f920

Horizen Gobi Testnet: npx hardhat --network proxyTestnet init.consumer.request --addr 0xBbbcA3BF56d4E58DffE7E29D1b9362252CB74464

Example

Horizen EON Mainnet

• InitiateRandomnessRequest in this transaction on Horizen EON
• RequestRandomWords in this transaction on Polygon
• RandomnessReceived in this transaction on Polygon
• CallbackWithRandomness in this transaction on Horizen EON

Horizen Gobi Testnet

• InitiateRandomnessRequest in this transaction on Horizen Gobi Testnet
• RequestRandomWords in this transaction on Polygon Testnet "Mumbai"
• RandomnessReceived in this transaction on Polygon Testnet "Mumbai"
• CallbackWithRandomness in this transaction on Horizen Gobi Testnet