What Is a Bitcoin-Native Stablecoin?
Over $200 billion worth of stablecoins exist across crypto. Almost none of it lives on Bitcoin. The stablecoin data on DefiLlama tells the story clearly: Ethereum and Tron carry the overwhelming majority. For Bitcoin holders, accessing stablecoins has always meant leaving Bitcoin, at least temporarily.
Bitcoin-native stablecoins change that proposition. Rather than bridging to another chain, a native stablecoin is issued and settled on Bitcoin itself. Here is what that distinction means in practice, and why it matters.
The three models of Bitcoin-collateralised stablecoins
Model 1: Wrapped Bitcoin on another chain
This is the most common approach today. You lock native BTC with a custodian (a company, a DAO, or a multisig group). In exchange, you receive a wrapped token on another chain, such as wBTC on Ethereum or cbBTC on Base. You then use that wrapped token as collateral in a DeFi protocol like Aave or MakerDAO to borrow a stablecoin.
The stablecoin here lives on Ethereum. Your collateral officially lives with the custodian who issued the wrapped token. There are two layers of trust: the custodian holding your BTC, and the smart contracts managing the loan.
The upside: mature protocols, deep liquidity, established track record. The downside: bridge risk (custodian failure or bridge hack), and your Bitcoin effectively left Layer 1 the moment you wrapped it.
Model 2: Synthetic stablecoins with BTC price exposure
Some protocols let you take a short position on BTC to create a synthetic dollar. You do not deposit BTC as collateral; you hedge BTC price risk to produce delta-neutral dollar-denominated exposure. Ethena's USDe uses this model with ETH.
This approach does not require Bitcoin at all. It uses Bitcoin derivatives markets. The stablecoin is not "backed by Bitcoin" in a straightforward collateral sense; it is backed by a hedging position.
Model 3: Native Bitcoin L1 issuance
A Bitcoin-native stablecoin is issued by a protocol that runs on Bitcoin itself, uses native BTC as collateral, and never requires the Bitcoin to leave Layer 1.
Ducat takes this approach. BTC is deposited into a vault secured with FROST threshold signatures. The borrower receives UNIT tokens, which are issued as . The stablecoin exists on the same chain as the collateral. There are no bridges, no wrapped tokens, no smart contracts on other blockchains.
Why native issuance matters for security
Every bridge is a potential failure point. The history of crypto is partly a history of bridge hacks: Ronin ($625M), Poly Network ($611M), Wormhole ($320M), Nomad ($190M). In each case, the mechanism for moving assets between chains was the weak point.
Bitcoin-native stablecoins eliminate the bridge. The collateral never crosses a bridge because it never needs to. The protocol logic lives on Bitcoin, which has the strongest security guarantees of any blockchain by a significant margin: the most hashrate, the longest unbroken track record, the most widely distributed node network.
There is also simplicity. Bitcoin's scripting language is intentionally limited compared to Ethereum's EVM. That limitation is a feature for a custody protocol. There is less surface area for bugs. The attack surface for a Bitcoin vault is smaller than the attack surface for a complex Ethereum smart contract.
The collateralisation model
Bitcoin-native stablecoins, like most crypto-collateralised stablecoins, are overcollateralised. You deposit more BTC than the value of the stablecoin you receive.
If you deposit BTC worth $10,000 and borrow UNIT at a 50% LTV, you receive $5,000 worth of UNIT. The 200% collateralisation ratio gives the protocol room to absorb Bitcoin price volatility without the stablecoin becoming undercollateralised.
If the BTC price falls and your collateralisation ratio drops toward the liquidation threshold, the protocol liquidates enough of your vault to restore health. You keep the stablecoin you borrowed; you lose a portion of your BTC collateral.
For a detailed walkthrough of how this works, including the maths behind the collateralisation ratios, see our guide to .
The peg mechanism
How does UNIT maintain its dollar peg without relying on a centralised issuer like Tether?
The answer is arbitrage. If UNIT trades above $1, arbitrageurs have an incentive to deposit BTC, borrow UNIT at protocol rates, and sell it at the market premium. This increases UNIT supply and pushes the price back down toward parity.
If UNIT trades below $1, arbitrageurs buy cheap UNIT, use it to repay loans at face value, and pocket the difference. This reduces UNIT supply and pushes the price back toward parity.
These arbitrage mechanisms only work if there is enough liquidity and enough participants. A nascent stablecoin with thin liquidity has a harder time maintaining peg stability than an established one with deep markets. This is a real challenge for any new stablecoin, and we are honest about it.
How this compares to USDT and USDC
USDT and USDC are fiat-backed. Tether and Circle hold dollar reserves and issue tokens against them. The peg mechanism is direct and simple: you can always redeem USDT for dollars at Tether (above certain minimums). The risk is counterparty: trust that Tether actually holds the reserves it claims.
Bitcoin-native stablecoins are crypto-collateralised. The collateral is on-chain and auditable in real time. No trust in a company's reserve reports required. The risk is volatility: if BTC drops sharply, liquidation mechanisms need to work fast enough to prevent undercollateralisation.
Neither model is strictly superior. They have different risk profiles for different use cases.
Who needs a Bitcoin-native stablecoin?
The clearest use case is Bitcoin holders who want dollar liquidity without selling their BTC and without leaving the Bitcoin ecosystem. They want to stay on Layer 1, keep their keys, and access a stable unit of account.
This matters most for long-term holders who believe in Bitcoin's properties specifically, not crypto broadly. For them, bridging to Ethereum to access DeFi carries ecosystem risk they would rather avoid.
Institutional holders face the same problem at larger scale. A fund holding $50 million in BTC that needs short-term dollar liquidity does not want to bridge that collateral to Ethereum. The bridge risk alone would be unacceptable. A native stablecoin on Bitcoin L1 removes that risk entirely.
The road ahead
Bitcoin-native stablecoins are still early. The tooling is new. Liquidity is thin compared to USDT on Ethereum. Wallet support is growing but not universal.
But the direction is clear. As more protocols build on Bitcoin L1, and as the total value locked in Bitcoin DeFi continues to climb, the need for a native stable unit of account grows with it. Lending, trading, payments, and savings all need a dollar-denominated token. If that token lives on Bitcoin, the entire financial stack stays on Bitcoin.
The stablecoin market is worth over $200 billion. The share that lives on Bitcoin today is tiny. That gap is the opportunity.
This content is for informational purposes only. Borrowing against Bitcoin involves liquidation risk. Always do your own research before depositing funds with any protocol.
