Hetu Protocol is a layer-1 blockchain focused on decentralized AI and scientific applications. It uses intersubjective consensus via Proof of Causality Work (POCW), leveraging causality graphs for transparent contribution tracking. Key features include flexible security tailored to transaction types, causality-based finality for instant transaction confirmation, and a modelgraph for fair value distribution among AI model contributors. The protocol supports hyperscalable layer-2 solutions with a theoretical 160,000+ TPS, anti-censorship governance, and cross-chain coordination. Built on Chrono’s logical clock and zero-knowledge systems, Hetu facilitates decentralized modelgraphs and verifiable logic clocks with TEE. The testnet launched in 2024, with mainnet phase 1 planned for Q2 2025.