ETHPlus wallet

What is ETHPlus (ETH+)?

ETH+ is denominated in ETH, not in dollars, and that framing explains the rest of it. It is an RToken issued on Reserve Protocol whose collateral is a basket of liquid staking tokens rather than a single one, so the position spreads across several staking providers instead of resting on one.

Issuance and redemption are direct against that basket: supplying the collateral mints ETH+, burning ETH+ returns the basket components to you, permissionlessly through the contract. Underneath, RSR stakers back the collateral and hold the governance that decides what the basket contains and how it may change. As a holder of ETH+ you are not in that process; you are exposed to whatever the basket currently is.

The balance behaves like a fixed share. The token count does not grow, and the collateral accruing on the staking side shows up as ETH+ gaining ground against plain ETH over time. So checking whether the position is working means comparing it to ETH, not watching the number in the wallet.

A second thing worth knowing: the Arbitrum version is the bridged form of the Ethereum token, and issuance and redemption against the basket happen on Ethereum. Each chain holds its own separate balance.

Supported networks in Tangem (2): Arbitrum One, Ethereum. The signing key is created inside the card's secure element and never leaves it, with a second identical card kept elsewhere as the restore path and a seed phrase offered as an option rather than a requirement. That matches a position people open in ETH terms and then leave alone for years rather than weeks.