What is wrapped Bitcoin (WBTC) and why is it used on Ethereum?
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2 Answers
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Whenever I want BTC exposure in Ethereum without a cross-chain bridge, I mint WBTC. I pick a trusted merchant, send BTC to the custodian, and after a short confirmation, I receive 1 WBTC on Ethereum. Then I can use it on Uniswap, borrow against it on Aave, or supply it as liquidity. Quick tips from my experience: 1) Check mint/burn fees and the current gas price before you mint, Ethereum gas can wipe out small trades. 2) Verify the backing: the WBTC contract page and the custodian’s audit show 1:1 backing and total supply. 3) Use reputable custodians and merchants; avoid unknown addresses or flaky bridges. 4) When you’re done, redeem to BTC; factor in withdrawal times and possible KYC. 5) Compare wrapped BTC options (WBTC vs renBTC) if you’re chasing lower fees or faster minting. I’ve found WBTC convenient for liquidity and hedging BTC risk within DeFi, as long as you stay mindful of fees and custody risk.
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From my experience, WBTC is an ERC-20 token backed 1:1 by actual Bitcoin held in custodial vaults, letting BTC participate in Ethereum DeFi.
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