ARPA Network (ARPA) is a decentralized secure computation network built to improve the security and privacy of blockchains. The ARPA threshold BLS signature network serves as the infrastructure of verifiable Random Number Generator (RNG), secure wallet, cross-chain bridge, and decentralized custody across multiple blockchains.

The ARPA BLS-TSS Network follows a set of core standards that define its architecture and interactions, providing a solid foundation for its operation. Within the network, various nodes participate in the Distributed Key Generation (DKG) process — a critical step that lays the groundwork for generating threshold signatures. The DKG process results in the creation of a group public key and individual partial keys for each member in group. These cryptographic components are then used to produce random numbers in a distributed manner, ensuring that no single entity can control or manipulate the outcome.

ARPA was founded in 2018 and previously known as ARPA Chain, a privacy-preserving Multi-party Computation (MPC) network, which had completed over 224,000 computation tasks in the past years. Their experience in MPC and other cryptography laid the foundation for ARPA’s innovative threshold BLS signature schemes (TSS-BLS) system design and led to today’s ARPA Network.

ARPA's infrastructure can support various use cases, such as verifiable Random Number Generators (RNG), secure wallets, cross-chain bridges, and decentralized custody. Randcast, a verifiable Random Number Generator (RNG), is supposedly the first application that leverages ARPA as infrastructure. Randcast offers a cryptographically generated random source with superior security and low cost compared to other solutions. Metaverse, game, lottery, NFT minting and whitelisting, key generation, and blockchain validator task distribution can benefit from Randcast’s tamper-proof randomness. #ARPA $ARPA