How does Harmony sharding work?

Harmony divides the network into 4 shards, each processing transactions in parallel. Shard 0 handles cross-shard communication and staking, while Shards 1-3 handle application transactions.

Can I swap ONE without KYC?

Yes. SyntheticSwap supports ONE swaps with no registration or identity verification.

What happened to the Harmony bridge hack?

In June 2022, the Horizon bridge was exploited for approximately $100M, believed to be carried out by the Lazarus Group (North Korea). Harmony offered a controversial $10M bounty and recovery proposal.

Is Harmony EVM compatible?

Yes. Harmony is fully EVM-compatible with Ethereum, allowing MetaMask and Solidity smart contracts to work on the Harmony network.

What is Effective Proof of Stake?

Harmony's Effective Proof of Stake (EPoS) is a staking mechanism designed to reduce stake centralization by diminishing returns for validators with very large stakes.

Home/Supported Coins/Harmony

Harmony

Fast and Open Blockchain for Decentralized Applications

Launch Year

2019

Consensus

Effective Proof of Stake (FBFT)

Max Supply

Unlimited (inflationary)

Block Time

~2 seconds

ONE

Harmony

Price—

24h Change—

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Harmony Price Chart

ONE / USD

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About Harmony

Harmony (ONE) is a sharded blockchain designed for decentralized applications and cross-chain finance, achieving 2-second finality and 1,000+ TPS through state sharding and Effective Proof of Stake consensus. Launched in 2019, Harmony uses a Practical Byzantine Fault Tolerant (PBFT) variant called Fast Byzantine Fault Tolerance (FBFT) to achieve low-latency consensus. The network is EVM-compatible, allowing Ethereum developers to deploy applications with minimal modifications. ONE is the native token used for staking, transaction fees, and governance. Harmony suffered a major bridge hack in 2022 but continues developing its ecosystem.

History

2018

Harmony founded with the goal of solving the blockchain trilemma through sharding and efficient consensus.

2019

Harmony mainnet launches on Binance Launchpad IEO; network achieves 1,000 TPS with 2-second finality.

2021

Harmony ecosystem grows with DeFi protocols, NFTs, and gaming projects.

2022

Horizon bridge hacked for $100M in cryptocurrency; Harmony offers controversial recovery proposal.

2023

Harmony focuses on recovery, ecosystem rebuilding, and launching new DeFi protocols.

2024

Harmony continues development with zkDAO initiatives and cross-chain infrastructure improvements.

How to Swap ONE

Swapping Harmony (ONE) on SyntheticSwap is simple and requires no registration or KYC. Connect your personal crypto wallet, select ONE as your source or destination asset, enter your receiving wallet address, and confirm the live exchange rate. Once you send ONE to the deposit address provided, SyntheticSwap processes the exchange automatically and delivers the destination asset directly to your wallet. No personal information is collected — fully non-custodial from start to finish.

How to Store ONE

ONE is stored in Harmony-compatible wallets. 1Wallet (formerly Math Wallet for Harmony) and Metamask configured for the Harmony network (chainId 1666600000, RPC: https://api.harmony.one) are primary options. Trust Wallet supports ONE natively. Ledger hardware wallets support ONE via the Harmony Ledger app. Harmony uses Ethereum-compatible ONE addresses.