Arbitrum Bridged WBTC (Arbitrum One) is a representation of Wrapped Bitcoin (WBTC) on the Arbitrum One network, allowing users to utilize Bitcoin's value within the Arbitrum ecosystem. It functions as an ERC-20 token pegged 1:1 to WBTC, enabling faster and lower-cost transactions compared to the Ethereum mainnet.

Overview

Wrapped Bitcoin (WBTC) is an ERC-20 token on the Ethereum blockchain that is backed 1:1 by Bitcoin (BTC). Its creation allows Bitcoin holders to participate in decentralized finance (DeFi) applications and smart contracts predominantly built on Ethereum. Arbitrum Bridged WBTC extends this functionality by making WBTC available on Arbitrum One, a Layer 2 scaling solution for Ethereum.

The primary purpose of bridging WBTC to Arbitrum One is to leverage Arbitrum's architecture for increased transaction speed and reduced gas fees. Users can deposit WBTC from the Ethereum mainnet onto Arbitrum One via a bridge, receiving Arbitrum Bridged WBTC in return. This bridged asset can then be used within the Arbitrum ecosystem for various activities, such as trading on decentralized exchanges (DEXs), particip ating in lending protocols, and engaging with other DeFi applications.

The process of moving assets between the Ethereum mainnet and Arbitrum One involves a bridging mechanism. For WBTC, this means locking the asset on one chain and minting an equivalent representation on the other. Arbitrum's bridge facilitates this transfer, allowing users to move their WBTC value between the high-security environment of Ethereum Layer 1 and the scalable environment of Arbitrum Layer 2. ^{[1] [3] [5] [7] [8]}

Technology

Arbitrum Bridged WBTC operates as an ERC-20 token on the Arbitrum One network. The underlying technology relies on a cross-chain bridge that connects the Ethereum mainnet and Arbitrum One. When a user wants to move WBTC from Ethereum to Arbitrum, they interact with the bridge contract on Ethereum, locking their WBTC. The bridge then communicates with the Arbitrum One network to mint an equivalent amount of Arbitrum Bridged WBTC tokens to the user's address on Arbitrum.

Conversely, to move Arbitrum Bridged WBTC back to the Ethereum mainnet, a user initiates a withdrawal via the bridge on Arbitrum One. This process typically involves burning the Arbitrum Bridged WBTC tokens on Layer 2, which signals the bridge to release the corresponding WBTC locked on the Ethereum mainnet. Arbitrum One utilizes optimistic rollup technology, which processes transactions off-chain and posts compressed transaction data to the Ethereum mainnet, relying on a dispute resolution period to ensure correctness. Bridging assets like WBTC leverages this Layer 2 architecture for efficiency. Cross-chain bridges, such as those utilizing aggregators like Li.Fi, facilitate the transfer of WBTC between different blockchain networks, including Arbitrum, Ethereum, Polygon, and others. ^{[1] [2] [7] [4]}

Tokenomics

Arbitrum Bridged WBTC (WBTC) on Arbitrum One is designed to maintain a 1:1 peg with Wrapped Bitcoin (WBTC) on the Ethereum mainnet, which in turn is backed 1:1 by Bitcoin (BTC). The supply of Arbitrum Bridged WBTC is dynamic, depending on the amount of WBTC that has been bridged onto the Arbitrum One network.

As of June 17, 2025, the circulating supply of Arbitrum Bridged WBTC (Arbitrum One) is approximately 8,172 tokens. The total supply is also reported as 8,172 tokens, indicating that the circulating supply represents the entire amount currently on the Arbitrum One network. The maximum supply is listed as infinite, reflecting that the supply is limited only by the amount of WBTC that can be bridged onto Arbitrum One.

The market capitalization of Arbitrum Bridged WBTC (Arbitrum One) is calculated by multiplying its current price by its circulating supply. The fully diluted valuation (FDV) is the same as the market cap, given that the total supply is currently equal to the circulating supply. ^{[1] [2]}

Use Cases

Arbitrum Bridged WBTC (Arbitrum One) enables Bitcoin holders to participate in the decentralized finance (DeFi) ecosystem on the Arbitrum One network. By bridging WBTC to Arbitrum, users can access a range of applications with the benefits of Layer 2 scaling, including faster transaction speeds and lower costs compared to the Ethereum mainnet.

Key use cases include:

• Decentralized Trading: Trading WBTC against other cryptocurrencies on decentralized exchanges (DEXs) operating on Arbitrum One.
• Lending and Borrowing: Using WBTC as collateral to borrow other assets or lending WBTC to earn interest on Arbitrum-based lending platforms.
• Yield Farming: Participating in liquidity pools and yield farming protocols on Arbitrum to earn rewards with WBTC.
• Integration with Arbitrum Ecosystem: Utilizing WBTC within various other DeFi protocols and applications built on the Arbitrum One network.

Bridging WBTC allows users to leverage the value of their Bitcoin holdings within the growing Arbitrum ecosystem without needing to sell their BTC. ^{[1] [2] [7] [5]}

Trading Information

Arbitrum Bridged WBTC (Arbitrum One) tokens can be traded on various decentralized exchanges (DEXs) operating on the Arbitrum One network.

Some of the popular exchanges and trading pairs for Arbitrum Bridged WBTC include:

• Uniswap V3 (Arbitrum One) with pairs like WBTC/WETH and WBTC/USDT0 ^[1].
• PancakeSwap V3 (Arbitrum) with pairs like WBTC/WETH and WBTC/USDT0 ^[1].
• Camelot V3 with the WBTC/WETH pair ^[1].
• Uniswap V4 (Arbitrum) with pairs like WBTC/USDC and WBTC/USDT0 ^[1].

The price of Arbitrum Bridged WBTC (Arbitrum One) is calculated by aggregating data across multiple exchanges and markets using a volume-weighted average formula. ^{[1] [2] [3] [4] [5] [6] [7] [8]}