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Harmony Blockdaemon provides full end-to-end node management and staking support for Harmony, a fast and secure blockchain for decentralized applications.

Why Use Blockdaemon? Blockdaemon is the Total Node Management Solution

Blockdaemon guarantees peace of mind, as you never have to worry about maintaining or upgrading your nodes ever again — we look after all of that for you. Our finger is constantly on the pulse of each blockchain we support to ensure all of our nodes remain perfectly healthy. Our extensive experience across protocols lets us expertly monitor, repair and replace nodes where protocol level errors may occur. For any protocol updates needed, we look after these in advance so you never see any disruption in service.

Enterprise Level Security

Security is our top priority here at Blockdaemon. All nodes purchased through us are 100% customer dedicated. This means your node is yours exclusively. You’ll enjoy a dedicated node which has a unique address, its own unique connection and authentication key. Furthermore, these are never reused. We ensure your node is not open and exposed to anyone on the internet. Any nodes you’d like to add on additionally can be done so quickly and easily as well!

A Trusted Partner

Blockdaemon is by your side on your blockchain journey. We are the only infrastructure platform for blockchain nodes which offer multi-cloud and multi-geographical support, with just a few clicks. Want custom configurations and branded experiences? No problem, we provide a unified, whole-org, collaborative rollout to manage a complete network. Whatever your needs, we will work closely with you to deliver the solution you need.

Harmony Key Features

Secure, Random State Sharding

Harmony achieves scale without compromising security and decentralization. Harmony divides not only their network nodes but also the blockchain states into shards, scaling linearly in all three aspects of machines, transactions and storage.

Fast Consensus

Harmony has innovated on Practical Byzantine Fault Tolerance (PBFT) for fast consensus of block transactions. Their Fast BFT (FBFT) leads to low transaction fees and 1-block-time finality in Harmony Mainnet. They achieve 2-second block time with view changes in production against adversarial or unavailable leaders.

Effective PoS

Harmony has designed a novel Proof-of-Stake (PoS) mechanism for network security and economics. Their Effective Proof-of-Stake (EPoS) reduces centralization and distributes rewards fairly to thousands of validators. Their staking mechanism supports delegation and rewards compounding. To support 100% uptime but fully open participation, EPoS slashes validators who double-sign and it penalizes elected but unavailable nodes.

Secure Validator Nodes

All of our nodes — from our public validator node to dedicated deployments — follow best practices to be responsible members of the network, keeping our nodes running and participating in network consensus.

Monitoring, Alerting, and Automatic Healing

Blockdaemon Monitoring includes core machine-level metrics — CPU load, bandwidth, available disk space, memory — as well as blockchain specific metrics like peer counts, block height, transaction pools. Blockdaemon automatically monitors, repairs and replaces nodes where protocol-level errors may occur. When protocol updates are required, we make sure to apply them in advance so you see no disruption of service.

Frequently Asked Questions

  • What is Effective Proof-of-Stake

    Unlike traditional blockchains which require PoW to reach consensus, Harmony is a Proof-of-Stake blockchain which is energy efficient and low-cost for node runners. The process to elect validators is called Effective Proof-of-Stake (EPoS) which is the first sharding-focused PoS mechanism that prevents stake centralization. In EPoS, validators with a large amount of staked tokens are obligated to run more nodes to support the network while validators with less stake run fewer nodes. Besides, EPoS is able to randomly and evenly distribute stake among all shards so no shard is less secure than other shards.

  • Is Harmony decentralized?

    There are now 1,000 Harmony nodes – so far 640 of them run by the community – in line with thousands of Bitcoin and Ethereum nodes.

  • Why is the project called “Harmony”?

    Harmony is the beautiful music when people sing in different notes but resonate. It’s analogous to their high-performance protocol of multiple shards which reach consensus.

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