Zenrock BTC wallet

What is Zenrock BTC (ZENBTC)?

Moving bitcoin onto another chain always means leaving the Bitcoin network behind, and zenBTC is one route for that. Coins are deposited and stay locked on Bitcoin; what shows up in a Solana wallet is an SPL token standing in for that deposit, which can later be redeemed back to bitcoin.

The unusual part is who controls the locked reserve. Instead of a single custodian, Zenrock splits signing power into shards spread across independent node operators, so no one party ever assembles a whole key. For a holder that changes the question from "do I trust this company" to "does that operator set keep working", which is what redemption depends on.

On the Solana side the mechanics are ordinary but easy to trip over. The token lives in a token account attached to your wallet address, created the first time zenBTC arrives, with a small amount of SOL locked as rent for it. Every transfer, swap or redemption burns SOL, so a wallet holding zenBTC and nothing else cannot move it. Ticker care matters too: several different bitcoin wrappers circulate on Solana alone, and one issuer's wrapper is not accepted where another's is expected.

Supported networks in Tangem (1): Solana. Signing happens by touching the card to the phone, and the SOL that pays those fees sits in the same wallet, so nothing depends on a charged device being nearby when you want to unwind the position. That combination fits an asset most people leave alone for months and then need to redeem without fuss.