Multi-Chain

HashKey DID is a decentralized identity that supports multiple chains. The synchronization protocol is implemented through the LayerZero protocol. However, some chains are not yet supported by LayerZero, so we use middleware that we have developed to synchronize the DID with those chains.

1. Chains

The chains that DID supports registration and data synchronization are:

• Ethereum

• Polygon

• Moonbeam

• PlatON

2. Gas Fee

Users need to pay gas fees when sync their DIDs. Because the fluctuation of gas fees is unstable, we will charge 10-20% more than real-time gas fees on each chain, to ensure the success of the transaction.

When users sync information to a chain with an existing DID, it is equivalent to the users initiating a transaction directly on the target chain, rather than using a cross-chain protocol.