Blockchain Documentation

Complete technical specifications and developer guides for QELT Blockchain - an enterprise-grade, EVM-compatible blockchain built on Hyperledger Besu with QBFT consensus.

Jump to:

Overview Network Specifications Technical Architecture Consensus Mechanism (QBFT)Network Topology Genesis Configuration

Overview

QELT Blockchain is an enterprise-grade, Ethereum-compatible blockchain network designed for high-performance decentralized applications. Built on Hyperledger Besu 25.12.0, the network employs QBFT (Quorum Byzantine Fault Tolerance) consensus to achieve immediate finality with a 5-second block time.

770

Chain ID

Block Time

QBFT

Consensus

Cancun

EVM Version

Validators

10B

Initial Supply

Network Specifications

Parameter	Value
Network Name	QELT Mainnet
Chain ID	770 (0x302)
Token Symbol	QELT
Token Decimals	18
Consensus	QBFT (Quorum Byzantine Fault Tolerance)
Block Time	5 seconds
Block Gas Limit	50,000,000
Base Fee	0 (Zero gas fees)
EVM Version	Cancun
Client	Hyperledger Besu 25.12.0

Technical Architecture

QELT's architecture consists of multiple layers working together to provide a secure, scalable, and developer-friendly blockchain platform.

Application Layer

DApps, Wallets, Block Explorers

JSON-RPC / WebSocket

Security Layer

Nginx Reverse Proxy, Rate Limiting, SSL/TLS

RPC Layer

Hyperledger Besu JSON-RPC Interface

Execution Layer

EVM - Ethereum Virtual Machine (Cancun Fork Active)

Consensus Layer

QBFT - Quorum Byzantine Fault Tolerance (5 Validator Nodes)

Storage Layer

Bonsai (Pruned State) • Archive (Full Historical State)

Client Software

Hyperledger Besu 25.12.0 with Java 21 runtime

Storage Format

Bonsai (pruned) for validators, Forest (full) for archive

Security

SSL/TLS encryption, rate limiting, input validation

Monitoring

Prometheus metrics for real-time performance tracking

Consensus Mechanism (QBFT)

QBFT (Quorum Byzantine Fault Tolerance) is a Byzantine Fault Tolerant consensus algorithm that provides immediate finality with deterministic 5-second block times. The network tolerates up to ⌊(n-1)/3⌋ malicious validators.

Active Validators

Distributed across independent infrastructure

Byzantine Tolerance

Can tolerate 1 malicious validator

Min for Consensus

Requires ⅔+1 validators (4 of 5)

Consensus Parameters

blockperiodseconds:5

epochlength:30000

requesttimeoutseconds:10

Key Advantages

Immediate Finality: Transactions are final upon block inclusion
Predictable Performance: Fixed 5-second block time
Low Energy: No computational mining required
Network Stability: No chain splits or reorganizations

RPC Endpoints

QELT provides multiple HTTPS endpoints for interacting with the blockchain. All endpoints use SSL/TLS encryption and support standard Ethereum JSON-RPC methods.

Primary Archive Node (Recommended)

Recommended

https://archivem.qelt.ai

Full historical data with TRACE API support - optimal for indexers

Validator Node 1

https://mainnet.qelt.ai

Bootnode for peer discovery

Validator Node 2

https://mainnet2.qelt.ai

Production validator

Validator Node 3

https://mainnet3.qelt.ai

Production validator

Validator Node 4

https://mainnet4.qelt.ai

Production validator

Validator Node 5

https://mainnet5.qelt.ai

Production validator

Indexer API

https://mnindexer.qelt.ai

REST API for queries

Example: Get Latest Block

curl -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc":"2.0",
    "method":"eth_blockNumber",
    "params":[],
    "id":1
  }'

QELT Testnet

QELT Testnet is the official testing environment for developers to build and test applications before deploying to mainnet. Get free testnet tokens from the faucet to start building immediately.

Free Testnet Faucet

Get 2 QELT per day on testnet to begin building and testing your applications. No registration required.

Get Testnet Tokens

QELT Testnet

Network Name

771

Chain ID

QELT

Currency Symbol

Testnet Endpoints

Primary RPC

Recommended

https://testnet.qelt.ai

Perfect for wallet integration, smart contract deployment, and standard blockchain operations

Archive RPC

https://archive.qelt.ai

Complete historical data with TRACE API for transaction analysis and debugging

WebSocket

wss://ws.qelt.ai

Live blockchain events, perfect for dashboards, trading bots, and real-time dApps

Block Explorer

https://testnet.qeltscan.ai

QELT testnet blockchain explorer for transaction tracking

Faucet

https://testnet.qeltscan.ai/faucet

Get 2 QELT per day for testing

Add Testnet to MetaMask

{
  "chainId": "0x303",
  "chainName": "QELT Testnet",
  "nativeCurrency": {
    "name": "QELT",
    "symbol": "QELT",
    "decimals": 18
  },
  "rpcUrls": ["https://testnet.qelt.ai"],
  "blockExplorerUrls": ["https://testnet.qeltscan.ai"]
}

Developer Integration

QELT is fully compatible with standard Ethereum development tools and libraries. Get started in minutes with your existing Web3 development stack.

Web3.js

const web3 = new Web3('https://mainnet.qelt.ai')

JavaScript/TypeScript library

ethers.js

const provider = new ethers.JsonRpcProvider('https://mainnet.qelt.ai')

Modern Ethereum library

Hardhat

networks: { qelt: { url: "https://mainnet.qelt.ai", chainId: 770 } }

Smart contract development

MetaMask

chainId: '0x302' // 770 in hex

User wallet integration

MetaMask Network Configuration

{
  "chainId": "0x302",
  "chainName": "QELT Mainnet",
  "nativeCurrency": {
    "name": "QELT",
    "symbol": "QELT",
    "decimals": 18
  },
  "rpcUrls": ["https://mainnet.qelt.ai"],
  "blockExplorerUrls": ["https://explorer.qelt.ai"]
}

Performance Metrics

Block Time

476

Theoretical TPS

17,280

Blocks/Day

99.9%

Uptime

Network Statistics

Block Gas Limit:50,000,000

Simple Transfer Gas:21,000

Max Transfers/Block:~2,380

P2P Latency:<100ms

Next Steps

Ready to build on QELT? Explore our indexer API documentation and whitepaper for more details.

Indexer API Docs Read Whitepaper Quick Start Guide