Harmony

Harmony, also known as Harmony ONE, is an open blockchain platform with data sharding and fast finality. It's designed to enable social finance and community AI to use on-chain tokens for micro-payments, smart contracts for market pricing, and zero-knowledge proofs for data privacy.

Harmony aims to scale trust and create a radically fair economy. Its platform is decentralized, scalable, and secure to settle any transactions without the need for trusted parties.

Key features of Harmony include:

Secure, Random State Sharding: Harmony uses sharding to scale blockchains without compromising security and decentralization. The network nodes and the blockchain states are divided into shards, scaling linearly in all three aspects of machines, transactions, and storage.

Effective PoS & Token Economics: Harmony has designed a novel Proof-of-Stake (PoS) mechanism for network security and economics. Its Effective Proof-of-Stake (EPoS) reduces centralization and distributes rewards fairly to validators.

Fast Consensus, Instant Finality: Harmony has innovated on the Practical Byzantine Fault Tolerance (PBFT) for fast consensus of block transactions. Its Fast BFT (FBFT) leads to low transaction fees and 1-block-time finality in the Harmony Mainnet.

Keyless Smart Wallets: Harmony provides resilient smart wallets that offer recoverability through time locks and multiple safety nets. There is no single point of failure, and users have full custody and self-control.

Harmony also offers various decentralized products for assets, collectibles, identity and governance. It also has a growing ecosystem with a DeFi Shard & Social A(G)I, voice AI iOS app, Telegram AI bot, and other applications.

In terms of performance, Harmony's vision is to create cooperation for global communities and scale their digital economies. The platform encourages open governance and vibrant participation of its ecosystem.