As a developer, do you often find yourself struggling to integrate multiple blockchain networks for a single decentralized application? Perhaps you are managing assets on Ethereum, providing front-end services from IPFS, and handling smart contract computations on Arbitrum or Optimism. Each network requires you to adapt to different programming models, transaction costs, and settlement times. This process is cumbersome, inefficient, and complex.

Are you concerned that this fragmentation will hinder innovation? Could the extra energy required to manage multiple blockchains be better spent on improving your dapp? More importantly, this fragmentation is cumbersome for developers who are building products.

It also creates a very siloed experience for consumers and end users, which can result in high transaction costs or lengthy processes due to incompatibilities between different blockchains. Perhaps you experienced delays and unexpected costs when transferring assets between Ethereum and Bitcoin, or you may have difficulty seamlessly accessing services hosted on multiple blockchains.

Imagine a platform where interaction with dapps and the different services within them is smooth and intuitive, all within a single environment.

ICP’s Chain Fusion technology makes this possible.

Chain fusion, online

Today, Chain Fusion’s components — native Bitcoin integration, Ethereum, and EVM integration — are live, and the technology behind them is designed to make the complex world of multi-chain interactions more convenient and simpler.

What do we mean by chain fusion?

Fusion is the process of connecting or fusing multiple elements together to form a single entity. Through Chain Fusion, we fuse different blockchains together to drive value creation for other chains and the ICP ecosystem. This directly allows smart contracts to interact with multiple networks, enabling developers to implement multi-chain use cases and profit from ICP functionality.

Chain Fusion on ICP refers to the ability of container smart contracts to sign transactions and interact bidirectionally with other blockchains without relying on a single point of trust. Since ICP containers can read the state of other blockchains and write (sign) transactions to other chains without any intermediaries, direct bidirectional interaction is possible. This is achieved through chain key encryption and threshold signatures, but more on this later.

Overall, the technology allows developers to leverage the best elements of each network in an approach that would otherwise prove to be difficult or insecure. Users can use dapps without having to manage complex multi-chain wallets or navigate between different platforms. For example, an Ethereum-based dapp can process Bitcoin payments through ICP smart contracts, providing a unified user experience.

Why use Chain Fusion technology to build or enhance your dapp?

Chain Fusion’s technology stack allows developers to create powerful dapps by fusing components and unique features of different chains. For the first time, developers can experience the benefits of building in a unified environment with greater flexibility. Here are some of the benefits provided by the Chain Fusion environment:

• Leveraging the unique features of ICP, if you have a dapp, you can leverage the power of ICP without having to migrate your smart contracts or dapps to ICP. Therefore, developers can enhance smart contracts on other chains with the superpowers of ICP, including features such as HTTPS calls, timers, and event responses, thereby enhancing the functionality of their applications.

• A cross-chain environment without a vulnerable bridge. Chain Fusion allows information and value to flow directly between different chains. The difference of this technology is that it does not rely on the vulnerable architecture of a cross-chain bridge to facilitate the transfer.

• Offload heavy tasks and computations, with Chain Fusion, your dapp or smart contract can now offload heavy or expensive computational tasks to ICP without having to migrate your dapp or use insecure solutions, just standard cryptographic signatures.

• Eliminate complexity through on-chain orchestration. With the help of orchestration tools, developers can design smart contracts that automatically interact with multiple blockchains. ICP smart contracts can orchestrate token transfers between chains to ensure that assets are transferred securely and efficiently.

• Easy to integrate and deploy, developers can write smart contracts that solve cross-chain interactions without having to learn multiple programming languages, and what about users? Users can enjoy a simplified experience that feels like interacting with a single, cohesive ecosystem.

How does chain fusion work?

Chain Fusion combines technological advancements to enable secure read and write capabilities on other blockchains.

First, there are two types of integrations:

• Native Integration - This type of integration refers to two-way interaction at the protocol level. BTC<>ICP is a native integration, which means that nodes of other chains run together with ICP nodes. The container can directly read the Bitcoin blockchain state and sign Bitcoin transactions.

• RPC Integration - The EVM RPC smart contract container on ICP enables integration with Ethereum and other EVM-compatible networks. The container uses on-chain APIs to communicate, making the developer experience simpler. It allows seamless interaction with networks such as Arbitrum, Optimism, and Base, helping developers easily create cross-chain applications.

Another key element is Chain Fusion’s secure signature mechanism:

• Threshold Signatures - ICP features a threshold signature protocol, which is a security mechanism where private keys are shared between nodes that sign a subset of keys. This approach ensures that no single node has access to the entire key, and therefore no single node can compromise the security of the assets.

How can projects leverage Chain Fusion technology?

ChainKeyX uses a technology stack to bring Bitcoin to DeFi. More specifically, this integration allows traditional Bitcoin-centric banking services to be brought on-chain, and users can activate DeFi on BTC through lending without going through a centralized platform.

Through a flexible liquidity staking model, users can stake their Bitcoin and earn different interest rates based on the staking time. They also have full control over their assets and can choose to unstake their assets at any time.

Loka Mining is a meta-layer with a Bitcoin-native yield protocol built on ICP, which provides a trust-minimized method for Bitcoin miners, bringing key benefits to Bitcoin holders, miners, and investors.

For Bitcoin holders, Loka Mining allows them to leverage their BTC to gain native benefits from the Bitcoin mining economy. Secondly, for Bitcoin miners, Loka provides the opportunity to sell their future mining rewards. And for investors, it provides the opportunity to buy Bitcoin at below market prices. By participating in the Loka Mining ecosystem, investors can essentially buy Bitcoin at a discount thanks to being able to receive future mining rewards at a lower price.

Explore the entire Chain Fusion ecosystem:

Learn more about Chain Fusion and start building:

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