Wrapped Bitcoin

Bitcoin bridge to Ethereum DeFi

Wrapped Bitcoin (WBTC) mints ERC-20 tokens backed 1:1 by native BTC held in custody. Launched January 2019, it unlocked Bitcoin liquidity for Ethereum smart contracts and DeFi protocols. The tracked addresses on this page represent a slice of WBTC's on-chain footprint across reserve and operational wallets.

Attribution of these addresses comes from public announcements, smart contract events, and on-chain clustering analysis. WBTC operates through a decentralized merchant network rather than single-point custody, with multiple parties holding portions of the backing Bitcoin reserve. The addresses listed here capture identified operational and reserve endpoints.

/ Overview

On-chain footprint

Tracked addresses

Networks · BTC

2019

First seen on-chain

/ Context

Custody and minting architecture

WBTC uses a multi-signature custody model where Merchants deposit BTC and receive WBTC tokens to distribute. The reserve sits in cold storage controlled by multiple custodians, reducing single-failure risk. On-chain, this appears as periodic deposits to minting contracts and transfers to liquidity pools, particularly on Uniswap and other major venues.

/ Vault

All 4 addresses

Showing 4 of 4

013cdewt1arzjeejr2xtpda3dugk3f2ehga8BTCVIEW

023fkkcxsze1c4xzivyjvbtbvzs9lj1snqvcBTCVIEW

033mm2biaxbacfkutvsynr2rdxynehunez6vBTCVIEW

043mzri499cbcr4795irnznfc97efji23h7nBTCVIEW

/ See also

Related entities

BLA

BlackRock

Fund · 75 tracked addresses

75 addrBTC

Binance Deposit

Fund · 54 tracked addresses

54 addrBTC / ETH

CPD

Coinbase Prime Deposit

Fund · 27 tracked addresses

27 addrBTC / ETH

/ Questions

FAQ

How is the Bitcoin behind WBTC stored and secured?

The reserve BTC is held in multi-signature cold wallets managed by the Merchant consortium members. No single entity controls the keys, and the backing is regularly audited. This distributed model ensures neither Ethereum nor any one merchant can freeze or misappropriate the reserve.

What is the relationship between WBTC, Wrapped Bitcoin, and Ethereum DeFi?

WBTC is an ERC-20 token on Ethereum that represents native Bitcoin 1:1. It allows BTC holders to collateralize loans, provide liquidity, and participate in yield farming on Ethereum without moving coins off the Bitcoin network, bridging two ecosystems.

How were these specific addresses identified as WBTC operational wallets?

The tracked addresses were identified through public merchant registrations, contract event logs, and transaction clustering. These are selected identified wallets, not the full scope of WBTC operations, which span multiple merchants and geographic regions.

What on-chain activity distinguishes WBTC reserve and merchant wallets?

Reserve wallets show infrequent large deposits and minimal outflows, reflecting long-term Bitcoin backing. Merchant wallets cycle through deposit, mint, and distribution flows tied to user demand for WBTC liquidity on Ethereum.