Alephium

What is Alephium?

The Web3 you were promised. Scalability, smart contracts, and real decentralization without the tradeoffs.

Alephium unites the best of both worlds: the decentralized, censorship-resistant security of Proof-of-Work & UTXO, and the speed, scalability, and usability expected from modern smart contract platforms.

Why is Alephium special?

Fast: 8 second block time, 2 BPS network throughput. Each chain on Alephium now produces a block every 8 seconds. With parallel processing across the network, Alephium achieves 2 blocks per second on average, matching the speed of leading PoS networks without sacrificing decentralization.

Scalable: 20,000+ tps, single-chain experience. Alephium's BlockFlow sharding processes over 20,000 transactions per second while eliminating cross-chain complexity, delivering high throughput and the simplicity of a single-chain environment.

Secure: Security by design. Alephium offers a robust, developer-friendly environment with built-in protections against common vulnerabilities. Its MEV-aware architecture and native safeguards prevent threats like reentrancy attacks, unlimited approvals, and flash loan exploits.

Sustainable: The best of PoW, 87% less energy. Alephium's Proof-of-Less-Work consensus delivers true decentralization with a fraction of the energy. It retains the security and simplicity of traditional PoW while cutting energy use by over 87%.

Programmable: Stateful UTXO, the best of Bitcoin and Ethereum. Alephium's stateful UTXO model combines Ethereum's flexibility with Bitcoin's security. It enables powerful smart contracts with mutable state while ensuring robust, UTXO-based asset protection.

Dev-friendly: Custom VM & language built for performance. Alephium empowers developers with its purpose-built Virtual Machine (Alphred), intuitive SDK, and high-performance programming language (RALPH), enabling efficient development and unlocking new possibilities for smart contracts, dApps, and tokens.

Alephium delivers the Web3 you were promised.