Wrapped Aave Ethereum WETH wallet

What is Wrapped Aave Ethereum WETH (WAETHWETH)?

Behind WAETHWETH sits a supply position in Aave's Ethereum market, with WETH as the asset deposited. Supplying to Aave mints an aToken, and aTokens grow in quantity as interest accrues, which is elegant for a person reading a balance and awkward for a contract that expects a token to behave like every other ERC-20. This wrapper is the fix: a fixed-quantity token that tracks the same position through an exchange rate instead of a moving balance.

So the stack is three deep. Ether is wrapped into WETH, WETH is supplied to Aave and becomes an aToken, and the aToken is wrapped into this token. Getting back down means reversing each layer in order, and every one of those calls is an Ethereum transaction that costs ETH. Note also that a wrapper for the same asset in a different Aave market instance is a different contract, so the full name matters when you are checking what is in the wallet rather than just the ticker.

Supported networks in Tangem (1): Ethereum.

The key that signs the eventual unwind is generated on the Tangem card itself and stays inside its chip, and you copy it onto a second card at setup instead of writing words down, unless you want a seed phrase as well. A position built out of three nested layers is one you unwind deliberately, and a key that has never been on a screen is what you want waiting for that day.