Contract Addresses

iBTC Contract Addresses: Access Across Chains

iBTC operates seamlessly across multiple blockchains, enabling trust-minimized Bitcoin DeFi (BTC-Fi) with institutional-grade security. Below are the verified contract addresses for iBTC, wrapped iBTC (wiBTC), and staked iBTC (siBTC) on supported chains, empowering developers to integrate these tokens into dApps, wallets, or smart contracts.

iBTC Addresses

Ethereum

• Address: 0x20157dbabb84e3bbfe68c349d0d44e48ae7b5ad2

• Explorer: View on Etherscan

Arbitrum

• Address: 0x050c24dbf1eec17babe5fc585f06116a259cc77a

• Explorer: View on Arbiscan

Optimism

• Address: 0x2baa7e92f3f14883264bfa63058cc223ad719438

• Explorer: View on Optimism Explorer

Base

• Address: 0x12418783e860997eb99e8aCf682DF952F721cF62

• Explorer: View on Basescan

Avalanche

• Address: 0x25be3edd820a8fce6b8e211f40c5b82ba176994c

• Explorer: View on Snowtrace

BNB Smart Chain

• Address: 0x25be3edd820a8fce6b8e211f40c5b82ba176994c

• Explorer: View on BscScan

Wrapped iBTC (wiBTC) Address

Ethereum

• Address: 0x0C6F294f441661503c237c2317712A0Ecd8d2dA1

• Use Case: Wrapped iBTC (wiBTC) enables advanced DeFi strategies, such as yield farming or collateral in lending protocols (e.g., wrapping for ERC4626 compatibility on Euler).

• Explorer: View on Etherscan
• Technical Detail: An ERC20 wrapper around iBTC, deployed on Ethereum, maintaining 1:1 peg with iBTC via smart contract logic, with underlying BTC backed by Chainlink PoR.

Staked iBTC (siBTC) Address

Ethereum

• Address: 0xE4357bDAE017726eE5E83Db3443bcd269BbF125d

• Use Case: Staked iBTC (siBTC) enables restaking on Symbiotic and Mellow, offering triple rewards (iBTC, Symbiotic, Mellow points) and lower borrowing costs (1.5% interest, DOC1 PAGE1).

• Explorer: View on Etherscan
• Technical Detail: Issued via Mellow’s vault system, siBTC represents staked iBTC positions, integrating with Symbiotic’s shared security protocol for restaking.