Blab Crypto
Functions FBTC Token Brings Bitcoin to DeFi Across Multiple Blockchains
Imagine holding Bitcoin and still earning yield without ever selling the underlying asset. Function, the blockchain platform formerly known as Ignition, has made that possible with the launch of FBTC, a Bitcoin‑backed token that can be used across a broad array of smart‑contract chains.
FBTC is not a stablecoin but a wrapped representation of Bitcoin that is minted and redeemed on a 1:1 basis with BTC held in reserve addresses on the Bitcoin network. Users deposit BTC into a Function‑controlled reserve address; once the deposit is confirmed on the Bitcoin blockchain, the same amount of FBTC is minted on the chosen destination chain. Burning FBTC on that chain triggers a transfer of the equivalent BTC back to the user’s Bitcoin address.
The token can be deployed on Ethereum‑compatible chains, Solana, BNB Smart Chain, Arbitrum, Base, Mantle, BOB, Sonic, and Plume. Function’s infrastructure relies on multisignature and threshold‑signature schemes (TSS and MPC) to safeguard the reserve holdings, and the company claims the reserves are fully transparent and audit‑ready. Smart‑contract logic follows standard ERC‑20 or SPL token specifications, and includes bridge logic that lets users move FBTC between chains.
Wrapped tokens like FBTC unlock Bitcoin’s participation in smart‑contract ecosystems. The token can be lent, borrowed, supplied as liquidity, or staked on protocols such as Aave, Avalon, Bedrock, Solv Protocol, PancakeSwap, and DODO. Function’s marketing materials also highlight “BitcoinFi” strategies that combine Bitcoin exposure with DeFi yield.
FBTC competes with other Bitcoin‑backed tokens. Wrapped Bitcoin (WBTC) dominates Ethereum with deep liquidity but is tied to a single custodian, while Coinbase’s cbBTC is issued directly by Coinbase. FBTC’s advantage lies in its multi‑chain support and the use of multiple custodians, potentially reducing counterparty risk. Nevertheless, all wrapped tokens carry custody, bridge‑security, and smart‑contract‑bug risks.
The token is listed on several centralized and decentralized exchanges. Bybit offers a spot market for FBTC, and the token can be bought on other platforms that support the chosen chain. Users can store FBTC in self‑custody wallets such as OKX Web3, Bybit Web3, and TokenPocket, provided they use the correct contract address for the chain.
Institutional interest in Bitcoin has driven demand for ways to use BTC in DeFi without liquidating positions. Function’s roadmap emphasizes institutional adoption, additional chain support, and expanding the use cases for FBTC, though no specific timeline for new chain integrations has yet been announced.
At present, FBTC trades at a slight premium or discount to Bitcoin depending on market liquidity. The token’s price can diverge from BTC due to bridge fees, network congestion, or shifts in demand for DeFi exposure.
In short, FBTC gives Bitcoin holders a route to DeFi and yield opportunities on multiple blockchains while maintaining a 1:1 backing of BTC. Its success will hinge on adoption by DeFi protocols, exchange liquidity, and continued trust in Function’s custody and bridge infrastructure. Users should remain aware of the custody and smart‑contract risks that accompany wrapped Bitcoin tokens.
FBTC is not a stablecoin but a wrapped representation of Bitcoin that is minted and redeemed on a 1:1 basis with BTC held in reserve addresses on the Bitcoin network. Users deposit BTC into a Function‑controlled reserve address; once the deposit is confirmed on the Bitcoin blockchain, the same amount of FBTC is minted on the chosen destination chain. Burning FBTC on that chain triggers a transfer of the equivalent BTC back to the user’s Bitcoin address.
The token can be deployed on Ethereum‑compatible chains, Solana, BNB Smart Chain, Arbitrum, Base, Mantle, BOB, Sonic, and Plume. Function’s infrastructure relies on multisignature and threshold‑signature schemes (TSS and MPC) to safeguard the reserve holdings, and the company claims the reserves are fully transparent and audit‑ready. Smart‑contract logic follows standard ERC‑20 or SPL token specifications, and includes bridge logic that lets users move FBTC between chains.
Wrapped tokens like FBTC unlock Bitcoin’s participation in smart‑contract ecosystems. The token can be lent, borrowed, supplied as liquidity, or staked on protocols such as Aave, Avalon, Bedrock, Solv Protocol, PancakeSwap, and DODO. Function’s marketing materials also highlight “BitcoinFi” strategies that combine Bitcoin exposure with DeFi yield.
FBTC competes with other Bitcoin‑backed tokens. Wrapped Bitcoin (WBTC) dominates Ethereum with deep liquidity but is tied to a single custodian, while Coinbase’s cbBTC is issued directly by Coinbase. FBTC’s advantage lies in its multi‑chain support and the use of multiple custodians, potentially reducing counterparty risk. Nevertheless, all wrapped tokens carry custody, bridge‑security, and smart‑contract‑bug risks.
The token is listed on several centralized and decentralized exchanges. Bybit offers a spot market for FBTC, and the token can be bought on other platforms that support the chosen chain. Users can store FBTC in self‑custody wallets such as OKX Web3, Bybit Web3, and TokenPocket, provided they use the correct contract address for the chain.
Institutional interest in Bitcoin has driven demand for ways to use BTC in DeFi without liquidating positions. Function’s roadmap emphasizes institutional adoption, additional chain support, and expanding the use cases for FBTC, though no specific timeline for new chain integrations has yet been announced.
At present, FBTC trades at a slight premium or discount to Bitcoin depending on market liquidity. The token’s price can diverge from BTC due to bridge fees, network congestion, or shifts in demand for DeFi exposure.
In short, FBTC gives Bitcoin holders a route to DeFi and yield opportunities on multiple blockchains while maintaining a 1:1 backing of BTC. Its success will hinge on adoption by DeFi protocols, exchange liquidity, and continued trust in Function’s custody and bridge infrastructure. Users should remain aware of the custody and smart‑contract risks that accompany wrapped Bitcoin tokens.
