iExec is a decentralized cloud computing platform that leverages blockchain technology to create a trustless and efficient marketplace for computing resources. The platform connects individuals and organizations in need of computational power, storage, and data services with providers who can supply them.

By using blockchain-based smart contracts, iExec ensures secure, transparent, and automated transactions between users and providers. The platform supports a wide range of workloads, including AI processing, big data analytics, machine learning, and financial modeling, allowing users to access computing power on demand.

iExec was founded in October 2016 in France by Dr. Gilles Fedak, Dr. Oleg Lodygensky, and Dr. Haiwu He, alongside a team of blockchain and cloud computing experts based in Lyon.

The founders have strong academic and industry backgrounds in distributed computing and blockchain security, leading to the development of iExec as a pioneering decentralized cloud platform. Their vision was to create an ecosystem where computing resources are democratized and accessible to users worldwide through blockchain technology.

iExec operates as a decentralized cloud computing marketplace, where users and providers interact through smart contracts and blockchain-based transactions.

• Users (Requesters) – Individuals or businesses that need computing power submit tasks and pay providers using RLC tokens.
• Providers (Workers) – Resource owners list their computing power (CPU/GPU) on the marketplace and execute tasks in exchange for RLC rewards.
• Blockchain Integration – Transactions are recorded on Ethereum’s blockchain, ensuring transparency, automation, and security.

The Proof-of-Contribution (PoCo) protocol is iExec’s consensus mechanism designed to verify and validate off-chain computations in a decentralized manner.

• Task Validation – PoCo ensures that computational tasks are executed correctly and fairly by requiring providers to submit proof of their work on-chain.
• Reputation and Rewards – Providers are assigned a reputation score based on their performance. Honest participants receive staking rewards, while malicious actors risk penalties or exclusion.
• Trustless Execution – Smart contracts automatically release payments to providers only after their work is verified as valid.

iExec prioritizes data privacy and security by integrating confidential computing technologies such as Trusted Execution Environments (TEEs).

• Secure Enclaves (Intel® SGX) – Computations are executed inside isolated, tamper-proof environments, preventing even the node operator from accessing sensitive data.
• Confidential AI & Data Processing – Users can run machine learning models or analytics without exposing raw data to third parties.
• Decentralized Confidential Computing – Ensures that private computations remain encrypted, addressing security concerns in cloud computing.

Beyond cloud computing, iExec expands its marketplace ecosystem to include additional digital assets and AI tools.

• AI Model & Data Marketplace – Users can buy, sell, and rent pre-trained machine learning models and datasets for AI-driven applications.
• Decentralized Data Monetization – Organizations can sell proprietary data sets securely, allowing trusted access without full ownership transfer.
• Blockchain for Enterprise & Web3 – iExec supports decentralized applications (dApps) with computing infrastructure, enabling Web3 scalability.