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Circle Wrapped Bitcoin is on Arc

Circle Wrapped Bitcoin (cirBTC)1 unlocks utility for institutional markets. Backed 1:1 by BTC that is readily verifiable onchain, cirBTC is live on Arc2 and integrates seamlessly into Circle’s established infrastructure and the wider DeFi ecosystem.

Why Circle Wrapped BTC?

cirBTC is designed to provide institutions with a secure and neutral version of wrapped BTC1.

Secure and transparent

Every cirBTC is 1:1 backed by native BTC. Reserves are readily and independently verifiable onchain.

Proven credibility

From issuing an asset, to distributing it globally and building trust, cirBTC is designed with the same foundations as USDC and EURC.

Full-stack flexibility

cirBTC integrates seamlessly with USDC and Circle Mint to offer a single Circle-native end-to-end stack.

WHAT SETS cirBTC APART

Institutional peace of mind with cirBTC

Institutional-grade by design

Designed for eligible institutional participants, including OTC desks, market makers, and DeFi protocols.

Verifiable

Reserves can be independently verified onchain by any counterparty.

Interoperable infrastructure

Multichain cirBTC will support crosschain usage. Now available on Arc and Ethereum, cirBTC is designed for future multichain expansion.

UI screens showing borrowing and depositing cirBTC
Simplify borrowing

Unlock BTC liquidity with cirBTC and Circle Mint

Available to eligible Circle Mint LLC customers, Digital Asset-Backed Borrowing3 turns BTC into on-demand dollar liquidity. Deposit BTC. Mint cirBTC. Use it as collateral on pre-approved lending markets through a wallet you control and receive USDC directly in your Mint account. No extra steps. No credit underwriting. No separate workflows. No selling your sats.

Institutional-grade BTC collateral

cirBTC is the new wrapped BTC standard

Read the whitepaper

Reserves composition

See how BTC reserves are allocated, monitor token supply by network, and view top cirBTC holders by address.
As of September 21, 2026 8:00 AM.

Total supply

1103.77056803
cirBTC
$
95589746.86919793
USD

Total reserves

1106.28957454
BTC
$
95807900.1717294
USD

Supply by network

Supply
arc icon
Arc
ethereum icon
Ethereum
Supply
551.21576485
cirBTC
552.55480318
cirBTC

BTC reserve addresses

Address
Balance

18WuQvwR6gRKW9kvKMfhqCPdxr3G7oXH9K

0.00079226
BTC
$
68.61202414
USD

1NV8rnpmD9QLSjni1FtRnXG2dBFbFQUKXk

0.0000953
BTC
$
8.25325764
USD

1YNh8YZNZzFnrYHMhFK1n3FpE6bNzxp5p

0.01784452
BTC
$
1545.38741946
USD

1PN19kr6nH5iEVadC5zUiN5Y3kzPXFKE35

0.00009968
BTC
$
8.6325784
USD

135W4puZiS4bDsiWkZtB6q962G9wSAoUX1

0.0179471
BTC
$
1554.27114631
USD

1GFM3nLn1zJV8jE1tXsbC3xByqN1dzDstB

0.00035074
BTC
$
30.37510583
USD

175Xmcb3wGvVG7vdbR3iMSX9iJmfVaS5E8

0.0004871
BTC
$
42.1842791
USD

1BAAtCSb9Y6mrfKus5XpspN7LkwDvw42n

0.01808226
BTC
$
1565.97639608
USD

1412S6D4temBCT8jQXe6JyYRFAhjjSLRm5

0.01819484
BTC
$
1575.72615207
USD

19r9DMZDuK6h8ooq5JuypyeHz8DmarmkP1

0.000503
BTC
$
43.56126542
USD

19bnEjFSdUxTdyH55kREmu51veLyeywjBV

0.000503
BTC
$
43.56126542
USD

12TngfE76brtCJcuGYJDUaV7KP7eW2ksvB

0.000503
BTC
$
43.56126542
USD

1H6VtCB8PXdQApVQL7akcvrfbmF2vhxbbM

1.18868968
BTC
$
102943.9893655
USD

1CoEDYNKBvrHgoye1p2MwzMLYbit1g24aH

40.03005
BTC
$
3466718.95182961
USD

1HPVh49ZtF7eZSRcrjVMMme7y5nwkS5vpP

0.00888194
BTC
$
769.20188026
USD

1JkKmG26nUBcPS99TsCVsReSXvLkEai4ca

0.00000562
BTC
$
0.48670837
USD

1KVBNjpYfJvASdzeTAwqNbe9WecpKyugM3

0.00058968
BTC
$
51.06800595
USD

1HkJ6hcN4h4PtUYHiSi1hrUEUKQJmedM6z

0.00089484
BTC
$
77.49575099
USD

1FXxhAa9yKCG8WgCTrbSsdGKuC6QzN3Gq9

1064.98505998
BTC
$
92230808.87603343
USD
  1. cirBTC is issued by Circle International Bermuda Limited, a Class F Digital Asset Business licensed and regulated by the Bermuda Monetary Authority. Circle Mint and related distribution services are provided by Circle Internet Financial, LLC, NMLS # 1201441.
  2. Arc is an open L1 blockchain launched by Arc Network Services LLC ("Arc LLC") and operated by a permissioned validator set. Arc LLC provides software services only and does not offer regulated financial or advisory services. Arc has not been reviewed or approved by the New York State Department of Financial Services or any other regulatory authority.

    The Arc network is provided "as is" and "as available." Use of Arc involves inherent risks associated with blockchain technology, including smart contract vulnerabilities, network disruptions, and the absence of recourse for transaction errors or losses. The ability to transact on Arc depends on the ability to obtain and use USDC to pay gas fees. Neither Arc LLC nor any permissioned validator is responsible for the content, accuracy, legality, or functionality of third-party applications, protocols, or services built on or integrated with Arc. You are solely responsible for features or services you provide to users, including obtaining any necessary licenses or approvals and otherwise complying with applicable laws.

    All Arc features may be modified, delayed, or cancelled at any time without notice. Nothing herein constitutes a commitment, warranty, guarantee or legal, regulatory, tax, or investment advice.
  3. Digital Asset-Backed Borrowing is provided by Circle Technology Services, LLC through a customer-controlled Smart Wallet and is available to eligible Circle Mint (Circle Internet Financial, LLC) customers excluding New York clients, and subject to jurisdiction and eligibility.

    The product features described in these materials are for informational purposes only. All product features may be modified, delayed, or cancelled without prior notice, at any time and at the sole discretion of Circle Technology Services, LLC. Nothing herein constitutes a commitment, warranty, guarantee or investment advice.