We deliver audit-ready code for ERC-20, ERC-721, ERC-1155, and custom protocols. Our engineers use OpenZeppelin standards and formal verification to mitigate risks before deployment.
LABS
Services
Fair Sequencing Engine Implementation
We design and integrate custom fair ordering and time-boost consensus modules for Layer 2s and AppChains. Protect your users from front-running and ensure transaction order is resistant to sequencer manipulation.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- 2-Week MVP Delivery: Go from spec to testnet in two weeks.
- Gas Optimization: Reduce transaction costs by up to 40%.
- Multi-Chain Ready: Deploy on Ethereum, Polygon, Arbitrum, or Base.
We don't just write code; we architect the financial and operational logic that powers your protocol's core value.
key-features-cards
ENGINEERING EXCELLENCE
Our Fair Sequencing Implementation Capabilities
We architect and deploy robust, high-performance fair sequencing engines tailored to your protocol's specific consensus and economic security needs.
01
Custom Consensus Integration
Seamlessly integrate our fair ordering logic with your existing consensus layer (Tendermint, HotStuff, etc.) or build a new one. We ensure transaction ordering is deterministic, verifiable, and resistant to front-running.
< 100ms
Ordering Latency
100%
Deterministic Finality
02
MEV-Resistant Design
Implement proven strategies like time-boost auctions, encrypted mempools, or commit-reveal schemes to mitigate extractable value and protect your users from predatory trading.
> 95%
MEV Reduction
O(1)
Complexity Overhead
03
High-Throughput Sequencing
Engineered for scale. Our implementations support parallel transaction processing and sharded validation to achieve 10,000+ TPS without compromising on fairness guarantees.
10k+
Transactions/sec
< 2s
Block Time
04
Formal Verification & Audits
Deliver provably secure code. We employ formal methods (using tools like K-framework) and partner with top audit firms (like Trail of Bits) to verify the correctness and liveness of the sequencing logic.
100%
Critical Bugs Resolved
Tier-1
Audit Partners
05
Economic Security Modeling
Design and simulate your protocol's cryptoeconomics. We model staking incentives, slashing conditions, and validator behavior to ensure the sequencer network remains honest under adversarial conditions.
$1B+
Simulated Attack Vectors
Nash Equilibrium
Target State
06
Production Deployment & SLOs
We own the full deployment lifecycle on your cloud or bare metal. Includes monitoring, alerting, and clear Service Level Objectives for latency, uptime, and data consistency.
99.9%
Uptime SLO
< 4 weeks
Prod Deployment
benefits
BUSINESS & TECHNICAL IMPERATIVES
Why Implement a Fair Sequencing Engine
Fair sequencing is no longer a niche feature but a core requirement for any serious DeFi, gaming, or NFT platform. It directly impacts user trust, protocol security, and revenue integrity.
01
Eliminate MEV & Front-Running
We implement cryptographic ordering rules that neutralize Maximal Extractable Value (MEV) attacks, protecting your users from sandwich attacks and front-running bots. This creates a trusted trading environment essential for institutional and retail adoption.
0
Sandwich Attacks
100%
Order Fairness
02
Guarantee Transaction Fairness
Ensure all user transactions are processed in the order they are received, regardless of gas price. This prevents high-fee users from gaining unfair priority, democratizing access and building community trust in your dApp's mechanics.
First-In
First-Out Ordering
Gas-Neutral
Processing
03
Enhance Protocol Security
A fair sequencer acts as a critical security layer, mitigating time-bandit attacks and other ordering-based exploits. Our implementation includes robust slashing conditions and validator accountability to protect your network's state.
24/7
Attack Monitoring
Byzantine
Fault Tolerant
04
Improve User Experience & Retention
Predictable transaction outcomes and fair execution reduce failed trades and negative slippage. This leads to higher user satisfaction, increased trading volume, and stronger retention metrics for your application.
>40%
Retention Boost
Reduced
Support Tickets
05
Future-Proof for Regulation
Proactively address regulatory concerns around market fairness and manipulation. A verifiably fair ordering system provides audit trails and compliance evidence, positioning your project for sustainable, long-term growth.
Audit-Ready
Logs & Proofs
Compliance
Framework
06
Optimize Network Performance
Our engine batches and orders transactions efficiently, reducing network congestion and lowering effective gas costs for end-users. This results in faster finality and a more scalable application backend.
< 2 sec
Avg. Finality
Up to 30%
Gas Savings
Infrastructure Decision Analysis
Build vs. Buy: Fair Sequencing Engine
A detailed comparison of the total cost, risk, and time commitment for developing a fair sequencing service (FSS) in-house versus using Chainscore's managed solution.
| Key Factor | Build In-House | Buy with Chainscore |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Ongoing Annual Cost (Ops & Maintenance) | $150K - $300K | Optional SLA from $60K |
Security & Audit Burden | High (unaudited, custom code) | Low (pre-audited, battle-tested core) |
Team Requirements | 3-5 senior blockchain engineers | Your integration engineer + our team |
Protocol Support | Custom implementation per chain | Ethereum, Arbitrum, Base, Polygon, Solana |
Throughput & Finality | Variable (depends on team) | 10,000+ TPS, < 2s finality |
Uptime & Reliability SLA | Your responsibility (target 99%) | 99.9% Guaranteed SLA |
Time to First Value | Delayed by R&D phase | Immediate access to production-grade engine |
Total Cost of Ownership (Year 1) | $400K - $900K+ | $110K - $210K |
how-we-deliver
PREDICTABLE, TRANSPARENT DELIVERY
Our Implementation Process
We deliver a production-ready Fair Sequencing Engine in 6-8 weeks through a structured, milestone-driven process. Each phase is designed for technical oversight and predictable outcomes.
01
Architecture & Design Review
We analyze your existing stack and MEV threat model to design a custom FSE architecture. Deliverables include a technical specification and integration blueprint.
1-2 weeks
Phase Duration
3+ options
Architecture Reviewed
02
Core Engine Development
Our team builds the sequencer logic, validator set management, and slashing conditions using battle-tested libraries like CometBFT and Geth.
3-4 weeks
Phase Duration
100% coverage
Unit Tests
03
Testnet Deployment & Simulation
We deploy to a dedicated testnet and run adversarial simulations—including front-running and censorship attacks—to validate security guarantees.
1-2 weeks
Phase Duration
> 99.9%
Transaction Order Fairness
04
Production Integration
We integrate the FSE with your mainnet validator clients and RPC endpoints, ensuring zero downtime during the cutover.
1 week
Phase Duration
< 5 min
Target Downtime
Transparent Implementation Roadmap
Typical Project Timeline & Deliverables
A clear breakdown of our phased approach to Fair Sequencing Engine implementation, from initial design to production deployment and ongoing support.
| Phase & Deliverable | Timeline | Key Activities | Client Deliverables |
|---|---|---|---|
Phase 1: Discovery & Architecture | 1-2 Weeks | Requirement analysis, threat modeling, system architecture design, chain selection (Ethereum, Arbitrum, etc.) | Technical Specification Document, Architecture Diagrams, Finalized Project Plan |
Phase 2: Core Engine Development | 3-5 Weeks | Smart contract development (Solidity), off-chain sequencer logic, MEV resistance mechanisms, integration hooks | Smart Contract Source Code, Local Testnet Deployment, Initial Unit Test Suite |
Phase 3: Security & Testing | 2-3 Weeks | Internal audit, integration testing, stress testing (10k+ TPS), adversarial simulation, third-party audit coordination | Audit Report Summary, Comprehensive Test Results, Staging Environment Access |
Phase 4: Deployment & Integration | 1-2 Weeks | Mainnet deployment, frontend/backend integration support, monitoring setup, team training | Production Deployment on Target Chain, Integration Guides, Monitoring Dashboard |
Phase 5: Launch & Support | Ongoing | Launch monitoring, performance optimization, incident response, optional SLA-based maintenance | Post-Launch Report, 30-Day Support Window, Optional SLA Agreement |
Total Project Duration | 7-12 Weeks | From kickoff to mainnet launch with full support handoff. | A production-ready, audited Fair Sequencing Engine integrated into your stack. |
Technical & Commercial Details
Fair Sequencing Engine FAQs
Get specific answers on timelines, costs, and technical requirements for implementing a custom Fair Sequencing Engine.
A standard implementation takes 2-4 weeks from kickoff to mainnet deployment. This includes design, development, integration testing, and security review. Complex protocols with custom MEV resistance logic or multi-chain support may extend to 6-8 weeks. We provide a detailed project plan with weekly milestones.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall