- Internet Computer Protocol (ICP) has announced that its Chain Fusion technology now supports interoperability with the Solana blockchain.
- Developers can now create smart contracts on ICP that interact directly with Bitcoin, Ethereum, and Solana.
- Chain Fusion uses ICP’s chain-key cryptography and secure outcall technology to enable trustless cross-chain transactions without traditional bridges.
- This update introduces new possibilities for cross-chain swaps, decentralized finance (DeFi), gaming, and digital identity applications.
- Governance over these integrations is managed by ICP’s Network Nervous System, a decentralized, community-governed system.
DFINITY announced a new capability for its Internet Computer Protocol (ICP), enabling direct interactions between ICP smart contracts and the Solana network. This update means applications can move assets and run logic across three major blockchains: Bitcoin, Ethereum, and Solana. The development aims to support a more interconnected Web3 environment.
According to DFINITY, this expansion comes after successful integrations with Bitcoin and Ethereum. ICP’s Chain Fusion technology provides direct, secure, and decentralized pathways for blockchain communication. Smart contracts on ICP, known as “canisters,” now have the ability to interact natively with the Solana blockchain as well as previously supported platforms. More details on Chain Fusion can be found here.
ICP’s interoperability system avoids the risks that come with traditional blockchain bridges. Instead, it uses a technology called “chain-key cryptography.” This approach lets ICP’s smart contracts hold cryptographic keys and sign transactions directly on other blockchains. For Solana, ICP canisters use threshold signatures following Solana’s Ed25519 scheme. The system previously used similar methods for Bitcoin and Ethereum, allowing native cross-chain interactions without wrapping tokens or relying on third parties.
The expanded cross-chain communication also uses the SOL RPC canister and secure HTTPS outcalls. This setup lets ICP canisters securely communicate with external Solana APIs, checking responses from several Solana providers for reliability. The chain-key cryptography and canister technology are governed by the Network Nervous System (NNS), an open decentralized autonomous organization. This means any changes must go through community review to ensure transparency.
Through this integration, new types of decentralized applications are possible. Chain Fusion allows for on-chain swaps of native tokens—such as trading Solana (SOL) for Bitcoin (BTC)—without wrapping assets or requiring custodians. It also enables multichain DeFi protocols, asset management tools covering multiple blockchains, as well as cross-chain gaming, NFT marketplaces, and digital identity systems. ICP’s secure technologies support these applications by allowing smart contracts to manage assets across chains and serve on-chain user interfaces.
The update, part of ICP’s Helium” rel=”noopener ugc nofollow” target=”_blank”>Helium milestone, is designed to support more secure and robust blockchain applications. By expanding direct connections with Bitcoin, Ethereum, and now Solana, Internet Computer aims to build a true multichain foundation for future web applications.
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