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Last Updated: December 13, 2025
This article is for informational purposes only and does not constitute financial, investment, or trading advice. Cryptocurrency investments carry significant risk. Always conduct your own research and consult a qualified financial advisor before making investment decisions.
Risk Warning: Wrapped Bitcoin involves custodial and smart contract risks that do not exist when holding native Bitcoin. Users should understand these risks before using WBTC.
Wrapped Bitcoin (WBTC) is a digital token on the Ethereum blockchain that represents Bitcoin on a 1:1 basis. Think of it as a Bitcoin “receipt” that lives on Ethereum. Each WBTC token is backed by one Bitcoin held in reserve, allowing Bitcoin holders to access Ethereum’s decentralized finance (DeFi) applications, which are financial services that run on blockchain technology without traditional banks.
As of December 2025, roughly 125,000 WBTC tokens exist, worth approximately $11 billion. WBTC remains the largest wrapped Bitcoin on Ethereum, though its market share has declined following the September 2024 launch of Coinbase’s cbBTC.
How Wrapped Bitcoin Works
The WBTC system uses a process called minting and burning, managed by authorized merchants and custodians (the companies that hold the actual Bitcoin).
Minting Process: When a user wants WBTC, they work with an authorized merchant. The merchant sends Bitcoin to the custodians. Once confirmed, an equivalent amount of WBTC tokens is created and sent to the merchant, who delivers them to the user.
Burning Process: To convert back to Bitcoin, the process reverses. The user sends WBTC to a merchant, who destroys the tokens and requests the equivalent Bitcoin from the reserves.
1:1 Backing: Every WBTC in circulation should be backed by one Bitcoin in custody. Users can verify reserves through blockchain records, though this still requires trusting the custodians’ public statements about their holdings.
Custodian Role: BitGo serves as custodian alongside BiT Global in a joint venture arrangement established in late 2024. Together they control the passwords (private keys) that access the Bitcoin reserves. This custody model is what distinguishes WBTC from decentralized alternatives, where no single company or partnership controls the underlying Bitcoin.
Why Use Wrapped Bitcoin?
WBTC exists to solve a fundamental problem: Bitcoin and Ethereum are separate blockchains that cannot directly communicate. By creating a Bitcoin “wrapper” on Ethereum, users gain access to opportunities unavailable with native Bitcoin.
DeFi Access: WBTC holders can use their Bitcoin value in Ethereum DeFi applications. This includes lending platforms where users can earn interest, borrowing services where WBTC serves as security for loans, and trading pools on decentralized exchanges.
Trading on Ethereum DEXs: Wrapped Bitcoin can be traded on Ethereum-based decentralized exchanges like Uniswap or Curve. This provides access to trading pairs and market depth that native Bitcoin cannot reach.
Cross-Chain Value: WBTC lets users maintain exposure to Bitcoin’s price while participating in Ethereum’s application ecosystem.
These benefits come with trade-offs that users should carefully consider before wrapping their Bitcoin.
WBTC vs. BTC: Key Differences
When to Use BTC: For long-term holding with full control, native Bitcoin remains the straightforward choice. There is no company standing between you and your Bitcoin.
When to Consider WBTC: Users who want to use their Bitcoin value in DeFi applications may find WBTC useful, provided they understand and accept the associated risks.
Risks of Wrapped Bitcoin
WBTC introduces several risks that do not exist when holding native Bitcoin. Users should understand these before wrapping their BTC.
Custodial Risk: The BitGo and BiT Global joint venture controls the Bitcoin backing all WBTC. This creates risk that the custodians could fail, be hacked, or mismanage reserves. Users must trust that they maintain proper reserves and remain secure.
In August 2024, BitGo announced custody changes involving a partnership with BiT Global, a Hong Kong-based custody platform associated with Justin Sun, a controversial figure in crypto known for aggressive business tactics. According to reporting from Unchained Crypto, this announcement triggered significant concern. Data showed 60 times more redemptions than new mints in the two weeks following the news, with 1,353.7 BTC redeemed compared to just 20 minted.
The concern was serious enough that MakerDAO, a major DeFi lending protocol, voted to offboard WBTC as collateral, completing the phased removal by late November 2024. When major protocols reduce their trust in an asset, it signals meaningful risk.
Smart Contract Risk: WBTC exists as code on Ethereum. While audited, smart contracts can contain vulnerabilities that may be exploited by attackers.
De-Pegging Risk: Although WBTC should always equal one Bitcoin in value, extreme market conditions could theoretically cause the price to diverge, meaning WBTC could trade below the value of actual Bitcoin.
Regulatory Risk: The custody model may face government scrutiny in various jurisdictions, potentially affecting WBTC’s availability or operation.
How to Get Wrapped Bitcoin
Users can obtain WBTC through several methods.
Centralized Exchanges: Many major cryptocurrency exchanges list WBTC for trading. Users can purchase WBTC directly or swap other assets for it. This is often the simplest method for smaller amounts.
Decentralized Exchanges: Ethereum-based DEXs like Uniswap and Curve offer WBTC trading pairs. Users need an Ethereum wallet and ETH for transaction fees.
Wrapping Services: For larger amounts, users can work directly with WBTC merchants to wrap native Bitcoin into WBTC. This typically involves higher minimums and identity verification.
For those new to cryptocurrency, understanding how to buy and sell Bitcoin provides foundational knowledge before exploring wrapped versions.
Alternatives to WBTC
WBTC is not the only option for using Bitcoin on other blockchains. Several alternatives exist with different trust structures.
cbBTC: Coinbase launched its wrapped Bitcoin (cbBTC) in September 2024. As of December 2025, cbBTC has approximately 68,000 tokens in circulation worth roughly $6 billion, available on Ethereum, Base, Solana, and Arbitrum. Coinbase serves as custodian, offering an alternative for users who prefer a US-regulated exchange.
tBTC: A decentralized alternative that uses a network of computers (nodes) rather than a single custodian. This reduces the risk of any single company failing but introduces different technical complexities and typically has less liquidity.
renBTC: This protocol shut down in December 2022 and is no longer operational. Users with legacy renBTC should have migrated to other solutions.
Users should evaluate trade-offs based on their specific needs and risk tolerance. Decentralized alternatives like tBTC reduce custodial risk but may have lower liquidity and fewer DeFi integrations.
Conclusion
Wrapped Bitcoin bridges two of the largest cryptocurrency ecosystems, allowing Bitcoin holders to access Ethereum’s DeFi applications. The token is backed 1:1 by Bitcoin held by the BitGo and BiT Global joint venture, with approximately 125,000 WBTC currently in circulation.
However, WBTC fundamentally changes the trust model compared to holding native Bitcoin. Users must accept custodial risk, smart contract risk, and potential regulatory uncertainty. The August 2024 custody controversy demonstrated how quickly confidence in wrapped tokens can shift, with supply declining significantly as users redeemed their tokens.
For users who understand these trade-offs and want to use their Bitcoin value in DeFi, WBTC remains the largest option on Ethereum, though alternatives like cbBTC now offer meaningful competition. For those prioritizing self-custody and minimizing risk from third parties, native Bitcoin remains the appropriate choice.
Sources
Crypto-News.Net is not affiliated with WBTC, BitGo, BiT Global, Coinbase, or any wrapped Bitcoin protocol mentioned in this article.
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