Skip to main content

Documentation Index

Fetch the complete documentation index at: https://mintlify.com/fuseio/fuse-docs/llms.txt

Use this file to discover all available pages before exploring further.

Fuse Network is operated by validator nodes hosted by participants around the world. Validators run the software that holds a copy of the blockchain, groups and validates transactions every 5 seconds, and signs new blocks. In return, they earn newly minted FUSE tokens and transaction fees. Anyone who meets the stake requirement and technical prerequisites can become a validator — the process is entirely permissionless.

Requirements at a glance

Minimum stake

100,000 FUSE (own stake + delegated)

Maximum stake per node

5,000,000 FUSE

Maximum validators

100 active validators

Yearly block reward

5% inflation distributed to validators and delegators

Who should become a validator?

Companies building on Fuse can own a piece of the network, earn rewards as it grows, and participate in governance decisions that affect the infrastructure they depend on. Third-party service providers — such as KYC providers, exchanges, or lenders operating across chains — can become network stakeholders and gain reliable, first-class access to Fuse infrastructure. Community operators on Fuse who already run communities and payments products can upgrade to validator status to provide better service to their users and earn rewards.
Running a validator node requires a technical background in blockchain infrastructure and web hosting. If you prefer to participate without operating infrastructure, you can delegate your FUSE tokens to an existing validator instead.

Stake and validator set selection

The stake counted for a validator is the sum of its own staked FUSE and all tokens delegated to it by other holders. At the end of each cycle (~2 days, 34,560 blocks), the Consensus contract selects a new validator set from a random snapshot of all pending validators whose total stake meets the 100,000 FUSE minimum. The 100-validator cap and minimum stake requirement together guard against Sybil attacks: creating multiple validators is costly enough to deter cheap identity duplication.

Block rewards and fee distribution

The validator who publishes a block earns:
  1. Newly minted FUSE tokens — the protocol distributes 5% yearly inflation as block rewards, updated each block by the BlockReward contract.
  2. Transaction fees — fees paid by users for transactions included in the block.
Over time, a validator can expect to publish a share of blocks proportional to its overall stake. Delegators receive a share of rewards proportional to their delegated stake, minus the validator’s fee (minimum 15%).
Attracting delegators is the most effective way to increase your validator’s stake share and earn a greater proportion of block rewards.

Jailing

Validators are expected to remain online and follow consensus rules. Violating those rules — such as producing invalid blocks or missing block slots — results in jailing:
A jailed validator cannot produce blocks (earning no rewards) and cannot withdraw staked FUSE for several days. Ensure your node has redundant infrastructure and is monitored continuously.

How to become a validator

1

Acquire at least 100,000 FUSE

Obtain the minimum required stake of 100,000 FUSE tokens. You can use your own stake, or a combination of your own stake and delegated tokens from other holders, as long as the total meets the minimum.
2

Set up a full node

Run the Fuse full node software. Your node must maintain a complete copy of the blockchain and be reachable by the network at all times. Refer to the node setup documentation for configuration details and hardware recommendations.
3

Stake your FUSE

Lock your FUSE tokens in the Consensus contract to register as a pending validator. You have two options:
  • Send FUSE directly to the Consensus contract address 0x3014ca10b91cb3D0AD85fEf7A3Cb95BCAc9c0f79 on Fuse Network.
  • Call the stake function on the Consensus contract.
The easiest way to stake is through the Fuse Staking platform.
4

Wait for the next cycle snapshot

Once staked, your address becomes a pending validator. The Consensus contract takes snapshots of pending validators throughout each cycle (~2 days). At cycle end, a random snapshot is chosen and that set becomes the next active validator set.
5

Start producing blocks

When selected, your node will be included in the round-robin signing schedule. Each validator has a 5-second window to sign and broadcast its block. Monitor your node to ensure it does not miss its slot.

Staking platform

The Fuse Staking platform provides a UI for staking, monitoring validator performance, reviewing reward history, and managing delegations without needing to interact with smart contracts directly.

Build docs developers (and LLMs) love