Long confined to its role of reserve of value, Bitcoin begins a decisive breakthrough in the DEFI. With the launch of the PEG-BTC token (YBTC) on the SUP network, Bitlayer introduces a bitvm bridge “without trusted third party” which eliminates centralized intermediaries. This initiative marks a notable evolution. The BTC becomes an asset that is fully exploitable within decentralized protocols, formerly dominated by native tokens. A new chapter opens, that of an interoperable, mobile and now active Bitcoin in programmable finance.
In short
- Bitlayer announces the launch of YBTC, a token backed by Bitcoin, on the Blockchain Sui via a bitvm bridge.
- The YBTC makes it possible to mobilize the BTC in the DEFI: Staking, ready, borrowing and exchanges on the Dex de Su.
- The BITVM Bridge works without centralized intermediaries, guaranteeing safety and transparency of BTC transfers.
- Bitlayer aims to deploy its bridge to other major blockchains such as Arbitrum, Starknet or Cardano.
YBTC: a bridge between Bitcoin and Defi Sur Suis
Bitlayer has formalized the launch of PEG-BTC (YBTC) on May 15 on May 15, via the integration of a BITVM Bridge without trusted third party.
Such an initiative was announced On Bitlayer's official X account:
Bitlayer et suis integrate the first Bitvm Bridge without trusted third party in the DEFI ecosystem, making the Bitcoin productive sur sui thanks to YBTC.
Concretely, this synthetic token allows investors to deposit their BTC on Bitlayer, in order to convert it to YBTC SUR AU, which thus opens access to various DEFI applications of the network.
The features activated by this launch include:
- Participation in Staking via native protocols in Su follow, maintaining an exhibition at the BTC;
- Use in loan and loan services, which will allow investors to generate return or access liquidity;
- The exchange on the Dex de Suis, which will facilitate direct integration into the decentralized markets;
- The conservation of the backed value 1: 1 to the BTC, ensured by a native locking on Bitlayer.
Since February 2025, shared data indicate that more than 587 BTCs have been integrated into the SUPE DEFI ecosystem, more than 10 % of its TVL. The launch of YBTC aims to accelerate this dynamic by expanding the base of Bitcoin active investors on the DEFI.
Bitvm Bridge technology: security, interoperability and multi-chain ambitions
The technological specificity of the project lies in the use of the BITVM Bridge, a bridge solution without trusted third party. This mechanism, still rare in the BTC ecosystem, allows a native locking of BTC on the Bitlayer layer before its conversion to YBTC Sur Suis, without going through centralized intermediaries responsible for keeping the active ingredients.
“The BITVM Bridge is designed to eliminate the risks associated with the intermediaries while ensuring the verification of transactions via an evidence architecture”,, precise Bitlayer in its technical documentation.
However, the ambition of the Bitvm Bridge greatly exceeds the only case of use of suis. Bitlayer already announces an expansion roadmap towards other major ecosystems, such as Base, Starknet, Arbitrum, Sonic, Cardano and Plume Network.
This multi-chaînes strategy could allow PEG-BTC to become an interoperable standard for the tokenization of the BTC through different DEFI networks. The finalization of bridge audits and tests is underway, with a view to a wider deployment in the coming weeks.
If securing BTC flows is a technological priority, this advance challenges the future of the DEFI. By providing an asset historically perceived as passive, Bitlayer transforms the nature of Bitcoin in the dynamics of yield and liquidity. The growing involvement of actors like suis in this dynamic suggests that the BTCFI is in the process of structuring itself into an autonomous segment, with its own standards, products and logic of governance. In this context, interoperability could quickly become an essential standard for the multi-chained ecosystem.
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