Blueberry wallet

What is Blueberry (BLB)?

Blueberry describes itself in prime-broker terms: a lending market on Ethereum where one side supplies assets and the other borrows against collateral with leverage, then deploys the borrowed funds into strategies inside DeFi. BLB is the token that belongs to that protocol.

What this means for holding it is mostly about how a lending protocol's token is used. It is a standalone ERC-20 that sits at your address; the protocol's markets do not absorb it on their own, and nothing happens to the balance while it rests there. Interaction only starts when you deliberately connect to a contract, and the first step in any such interaction is an approval - a separate signed transaction granting a contract permission to draw on the token. Approvals persist after you stop using a position, so a holder who has connected to contracts in the past has a list of standing permissions worth reviewing and revoking. Everything, approvals included, runs on Ethereum mainnet and is paid for in ETH.

Supported networks in Tangem (1): Ethereum.

With Tangem, each of those steps ends at the card. The approval and the transfer are both shown on the phone and then signed by a tap, while the private key stays inside the card's chip and never reaches the device you connected with. When the risky part of holding a DeFi token is what you sign rather than where it is stored, moving the signature onto a piece of hardware you hold in your hand is a sensible trade.