WBTC.e on Avalanche is a token representing WBTC on Avalanche that was bridged from the Ethereum blockchain via the Avalanche Bridge.
For example, when sending WBTC over the bridge to the Avalanche Network, it will appear as WBTC.e once the transaction is completed.
If you don't immediately see the WBTC.e after a successful transaction, you may need to add the token to the wallet you are using so it shows your balance of WBTC.e.
Note that sending WBTC.e back is the same process but in reverse, resulting in WBTC.e turning into WBTC.
For a more in-depth read on how the Avalanche Bridge works, please read the following articles.
For any additional questions, please visit our knowledge base or contact a support team member via the chat button at support.avax.network.