Private transfer
Provide privacy on transactions and balances without making privacy a separate mode.
Solving the Quadrilemma XELIS introduces the concept of a quadrilemma or ”quadlemma”, as it will be referred to, adding privacy as a critical fourth pillar.
Capabilities
What the network brings together
Privacy, parallel block flow, programmable execution, and wallet tooling are designed as one stack instead of separate add-ons.
BlockDAG
Multiple blocks at the same height to improve scalability and security of the network.
Homomorphic Encryption
Enabled using ElGamal to provide privacy on transferred amounts and balances.
Smart Contracts
Easily code and create decentralized programs.
Account Model
Account based blockchain with more advantages than traditional UTXO.
XELIS Hash
A new CPU/GPU friendly algorithm. FPGAs and ASIC resistance.
Difficulty Adjustment
Using Kalman Filter to quickly converge network hashrate and filter misleading fluctuations.
Proofs
ZK Proof, ownership proof and balance proof.
Confidential Assets
Create your own native token fully compatible with all services.
Client Protocol
Allows accepting same transaction in multiple blocks without double spending.
P2P Encrypted Network
Prevent any network traffic analysis and provide better privacy.
Transaction Fees
Strict fees to avoid blockchain abuse.
Wallet & Tools
Desktop & Mobile wallet with XSWD, Integrated Address, Encrypted Storage, MultiSig and more.
Design objectives
Built for private applications at everyday scale
XELIS keeps the product goals close to the protocol: confidential balances, programmable assets, open participation, and tooling that developers can actually integrate.
Smart contracts
Enable decentralized programs through XVM and SILEX while keeping the network focused on confidential execution.
Daily scalability
Use BlockDAG architecture and fast block flow for practical everyday usage.
Developer access
Keep integration simple for wallets, services, apps, and protocol tooling.
Native assets
Issue custom assets that behave like native XEL across compatible services.
Open mining
Use a POW algorithm designed to remain CPU and GPU friendly.
Protocol facts
Network
Core parameters for the XELIS chain and native XEL asset.
- Coin Name: XELIS (XEL)
- Average Block Time: 5 seconds
- Maximum Block Size: 1.25 MB
- Block Reward: up to ~ 1.46 XEL
- Maximum Supply: 18.4 million
- Minimum Transaction Fees: 0.0001 XEL per kB
- Atomic Units: 8
- Block Dev Fee: 5%
Emission
Supply Emission
Instead of halving, the reward is decreasing with each block with a maximum supply of 18.4 million.
Current curvePer block
Supply cap18.4M
Long horizon2061
Protocol structure
BlockDAG foundation
- 01Reduce the rate of orphan's blocks when miners find a block at the same time. Instead of choosing one block, both blocks are included in the DAG.
- 02Height is not unique anymore and can have multiple blocks.
- 03Topo Height (topological height) is the new and unique height for a block which is ordered by the DAG.04Up to 3 previous blocks (called TIPS)
- Circulating Supply is re-calculated each time the block is reordered because it is based on DAG order.
- 05
- Stable height is the last height in which the order of the DAG cannot change. No more blocks can be added before this height.
- Best chain is selected by the highest cumulative difficulty.
- The cumulative difficulty is the sum of the difficulties of all previous blocks in the best chain up to this block.
- 06Different types of blocks:
- Sync: It is at a stable height and is the only block at its height (or the only ordered block at this height and doesn't have a lower cumulative difficulty than previous blocks).
- Side: Its height is less than or equal to the height of the past 8 topographical blocks. Its block rewards are reduced to 30%.
- Orphaned: This block was not ordered in the DAG and has no topographical height (it's transactions are not executed).
Roadmap
Timeline
Major protocol and application milestones, revealed as the roadmap enters the viewport.
2021 / Q1
Project Initialized
Laying the foundation for everythiing to rest upon. First commit! (Not the launch)
2023 / Q2
BlockDAG Implementation
Use DAG structure instead of linear blockchain.
2023 / Q3
XSWD
Permissioned protocol that uses WebSocket to exchange data between wallet and dApp.
2023 / Q4
Client Protocol
Accept multiple occurences of the same transactions. Avoid excluding entire block due to collision.
2024 / Q1
Homomorphic Encryption
Use ElGamal to provide privacy on transferred amounts and wallet balances.
2024 / Q1
Difficulty Adjustement
Use Kalman Filter to estimate the network's hash rate and adjust the difficulty target accurately.
2024 / Q1
XELIS Hash
New CPU and GPU friendly algo. Memory focused and FPGAs, ASIC resistance.
2024 / Q1
Block Explorer
Interface to track and verify txs on the network. Graphic to view the BlockDAG.
2024 / Q1
Genesix Wallet
New official XELIS wallet written in Flutter.
2024 / Q1
Documentations
Comprehensive project resources: detailed guides, feature overviews, APIs, SDKs, and more.
2024 / Q2
Project Mainnet Launch
The mainnet was launched on April 20, 2024, at 3PM UTC.
2024 / Q2
XELIS Hash V2
Improvement on all stages.
2024 / Q4
Multisig
Multi-signature wallet: all keys to spend, one to view all balances.
2024 / Q4
XVM Playground
An accessible webpage to experiment with coding in the XELIS programming language (SILEX).
2024 / Q4
Testnet Smart Contracts
Integration of XVM into the XELIS blockchain core. Write decentralized code.
2025 / Q1
Multi Thread Txs
Improve transaction verification to handle high TPS.
2025 / Q2
RocksDB
Replace the Sled database with RocksDB to drastically improve storage performance, stability, and size.
2025 / Q4
Smart Contracts Mainnet
Launch Smart Contracts on the mainnet, enabling decentralized applications and programmable transactions.
2026
Smart Contracts improvements
Add new features and optimizations to the Smart Contract platform based on community feedback and usage patterns.
2026
BlockDAG Improvements
Ongoing enhancements to the BlockDAG structure to improve scalability, security, and efficiency of the network.
Community
Build and follow XELIS
Join the community, follow development, or inspect the code directly.