ARPA Network develops decentralized cryptographic infrastructure for blockchain ecosystems. Its threshold BLS network supports applications such as verifiable randomness, secure wallets, cross-chain bridges, and decentralized custody, with nodes participating through staking and slashing mechanisms. Randcast provides APIs for on-chain verifiable randomness across gaming, NFTs, lotteries, generative art, governance, and other use cases. ARPA also develops verifiable AI technology using zero-knowledge proofs and operates Archive of Fate, an AI-powered fate simulation game.