Avail, a modular blockchain platform focused on integrating Web3 and optimizing data availability for scalable applications, has teamed up with dWallet Network to introduce programmable native Bitcoin to rollups within the Avail ecosystem.

Anurag Arjun, co-founder of Polygon, launched Avail as a separate entity from Polygon in 2023. Initially incubated within Polygon Labs in late 2020 and publicly introduced in mid-2021, Avail plans to launch its mainnet later in 2024.

Utilizing dWallet’s decentralized multiparty computation (MPC) infrastructure, smart contracts on Avail DA-based rollups will have the capability to manage native BTC while programmatically preserving user ownership. This approach differs from many Bitcoin Layer 2 solutions that often rely on cross-chain solutions like bridges, where users must relinquish ownership of their BTC.

The collaboration aims to enhance Bitcoin’s functionality by leveraging dWallet’s MPC infrastructure to create native Bitcoin rollups, enabling more efficient and secure transactions and operations on the Bitcoin blockchain while supporting a wider range of functionalities beyond basic transactions.

The integration with dWallet Network through Avail Nexus, a zero-knowledge coordination rollup incorporating validity-proof based light clients and execution-proof aggregation, will also allow developers to utilize Avail Fusion's borrowed security from native assets of mature ecosystems such as BTC and ETH.

Additionally, the dWallet Network integration will facilitate the Fusion Security model upon launch, enabling users to securely hold their BTC, ETH, or other assets in dWallets and stake them to enhance the security of the Avail ecosystem while retaining ownership of their native assets. This introduces the first native multi-chain staking/restaking solution aimed at securing the consensus of a different blockchain.

To implement the dWallet primitive, the dWallet Network employs 2PC-MPC, a multiparty protocol developed by its team, enabling the generation of an ECDSA signature in a non-collusive manner, requiring participation from both the end-user and a significant number of nodes.

The dWallet technology allows a Solidity smart contract on an Avail rollup to create Bitcoin signatures and enables developers to manage a dWallet. Meanwhile, the dWallet Network mandates approval from the Avail rollup smart contract for logic enforcement, requiring users to finalize the signature to prevent collusion and asset theft.

This integration aligns with Avail’s mission to "unify Web3," utilizing a comprehensive full-stack architecture comprising three solutions: DA, Nexus, and Fusion Security. Avail DA serves as the foundational layer for a diverse ecosystem of rollups, while Avail Nexus utilizes Avail DA as the trust anchor for ecosystem-wide coordination. Finally, Fusion Security offers additional protection to an expanding network of rollups and blockchains, enhancing Avail’s consensus mechanism.

Omer Sadika, Co-founder and CEO of dWallet Network, stated, “We firmly believe that the future of Web3 is multi-chain, not cross-chain, and together with Avail, we will continue to work tirelessly on making this vision a reality.”

The integration of dWallets into the Avail ecosystem accelerates the unification of Web3, addresses fragmentation issues, and lays the foundation for a fully integrated, secure, and native experience across all Web3 ecosystems, according to both companies.