cbBTC's market value reached $100 million on the day after its launch, but it has been burdened with the controversial label of "central bank Bitcoin".

By Karen, Foresight News

Last night, Coinbase officially launched its wrapped Bitcoin token, Coinbase Wrapped BTC (cbBTC), on Ethereum and Base. The day after its launch, the market value of cbBTC reached $100 million, with 42% of the supply coming from Base and 58% from Ethereum. According to Nansen data, Wintermute is currently the largest liquidity provider for cbBTC.

How does cbBTC work?

cbBTC is an ERC20 token supported by Coinbase's custody-held Bitcoin at a 1:1 ratio, and is currently available on Ethereum and Base. Coinbase plans to expand cbBTC to more networks in the future.

In terms of its operation, cbBTC demonstrates a high degree of automation and convenience. Specifically, when users transfer BTC stored on Coinbase to Base or the Ethereum network, this process will automatically trigger a 1:1 exchange between BTC and cbBTC, minting the corresponding tokens at the target address. Conversely, the system will destroy these tokens and release an equivalent amount of BTC from Coinbase's reserves to the user's Bitcoin account. Users do not need to be aware of the minting and burning operations.

In terms of security, Coinbase promises that the BTC supporting cbBTC will never be sold, transferred, or used for any other purpose. The circulating cbBTC is backed by an equivalent amount of BTC stored in secure custody solutions provided by Coinbase (including cold storage). Additionally, Coinbase has engaged OpenZeppelin to audit the cbETH smart contract to ensure its security and stability.

As for the fee structure, Coinbase does not charge any fees for minting (wrapping) or burning (unwrapping). However, users will need to pay network fees when withdrawing from Coinbase.

The ecological impact of cbBTC

The launch of cbBTC constitutes a strong driving force for Bitcoin users and the entire DeFi ecosystem. First, it allows for the activation of the large amount of Bitcoin reserves on the Coinbase platform, enabling these previously dormant assets to shine on a broader stage and earn additional income. According to Arkham data, the Bitcoin balance on Coinbase exchange currently exceeds 980,000, with a value close to $57 billion, which is 370 times the value of its Ethereum balance. The importance of activating Bitcoin reserve assets is self-evident.

More importantly, cbBTC lowers the barrier for Bitcoin users to participate in DeFi applications and services, allowing users to easily provide liquidity to DeFi protocols on networks for better ecosystem development, or to use Bitcoin as collateral for borrowing other cryptocurrencies. This change not only enriches the use cases for Bitcoin, but also injects new vitality into the financial ecosystem on networks such as Ethereum and Base.

When launching cbBTC, Coinbase established close partnerships with multiple mainstream DeFi protocols and platforms, including mainstream DEXs, lending protocols, yield aggregators, and more. These partnerships not only provide extensive ecological support for cbBTC, but also offer users more ways to use Bitcoin on-chain, achieving a deep integration of Bitcoin with the DeFi ecosystem. Specific partnerships include:

• DEX: Aerodrome, Curve, Matcha, Uniswap.
• Lending protocols: Aave, Compound, Morpho, Moonwell, Spark.
• Yield aggregators: Mellow, Veda.
• xChain Swaps: DeBridge, DeFinitive.
• Oracles: Chronicle Labs.
• Risk Curators: Block Analitica, Gauntlet, Steakhouse.
• RWA: Maple.

cbBTC: Opportunities and risks coexist

The lack of decentralization and transparency of reserves has become the focus of controversy and questioning for cbBTC, even leading to the controversial label of "central bank Bitcoin". Although this title carries a mocking tone, it bluntly reveals the market's doubts about the decentralization of cbBTC. After all, in a cryptocurrency world that should emphasize trustlessness and decentralization, the design features of cbBTC and its shortcomings in reserve proof have inevitably led to comparisons with centralization in traditional financial systems.

The whitepaper of cbBTC points out that the cbBTC wrapping contract managed by Coinbase includes a "blacklist administrator" role, which can blacklist certain addresses, prohibiting them from conducting transfers, minting, and burning operations. This means that governments or other parties may have the right to directly freeze Bitcoin on-chain through subpoenas, raising concerns about the potential direct intervention of governments or other authorities in the liquidity of Bitcoin on-chain.

In addition, the on-chain price of cbBTC is entirely determined by market supply and demand, and Coinbase does not directly intervene in its pricing process. However, due to the potential initial lack of liquidity, the price stability of cbBTC will depend heavily on the expansion and maturation of its ecosystem. Only when the circulation and market acceptance of cbBTC reach a certain level, will its price be likely to stabilize, providing investors with a more reliable value anchor.

Conclusion

Coinbase's vision is to bring economic freedom to over 1 billion people. cbBTC is a key part of this blueprint. By bridging off-chain Bitcoin liquidity with networks such as Base and Ethereum, connecting the world of Bitcoin with the emerging DeFi ecosystem, cbBTC not only promotes the efficient flow of assets and value release, but also opens a door to a new financial world for global users.

As cbBTC expands and deepens its application on more blockchain networks, a more open, inclusive, and efficient financial ecosystem is gradually taking shape. In this system, Bitcoin will no longer be an island, but will become a bridge and link connecting various financial corners. However, the challenges and doubts also constitute variables that cannot be ignored on the future development path of cbBTC.

Reference:

https://coinbase.bynder.com/m/1303c2f4d78fc966/original/cbBTC-White-Paper.pdf

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