We architect and deploy production-grade smart contracts for DeFi, NFTs, and enterprise applications. Our process delivers audit-ready code with 99.9% uptime SLAs and full IP ownership.
LABS
Services
Cross-Chain Randomness Bridge Development
We build secure interoperability layers that allow your dApp on one blockchain to consume verifiable randomness generated on another chain. Enable complex logic for multi-chain gaming, NFTs, and DeFi.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, gas-optimized smart contracts built by Web3-native engineers.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155with minting, vesting, and governance. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, and lending/borrowing logic.
- Enterprise Logic: Multi-signature wallets, supply chain tracking, and verifiable credentials.
Development includes comprehensive unit testing, gas optimization reports, and integration support for a 2-4 week MVP delivery.
Built on Solidity 0.8+ and Vyper using OpenZeppelin libraries. Every contract undergoes internal review against common vulnerabilities before third-party audit.
key-features-cards
ENGINEERING EXCELLENCE
Core Technical Capabilities
Our development process is built on verifiable security, battle-tested protocols, and measurable performance. We deliver production-ready bridges with enterprise-grade reliability.
01
Verifiable Randomness Integration
Integrate Chainlink VRF, API3 QRNG, or Witnet Randomness Oracles with custom logic for provably fair, on-chain random number generation. We ensure cryptographic proof of integrity for every request.
< 1 sec
Average RNG Latency
100%
Verifiable Proof
02
Multi-Chain Bridge Architecture
Build secure, non-custodial bridges connecting Ethereum, Polygon, Arbitrum, and other EVM chains. We implement industry-standard message-passing protocols like Axelar or LayerZero for interoperability.
5+
Supported Chains
Non-Custodial
Security Model
03
Security-First Smart Contracts
Developed in Solidity 0.8+ with OpenZeppelin libraries. Every contract undergoes rigorous unit testing, static analysis, and a third-party audit by firms like CertiK or Quantstamp before mainnet deployment.
100%
Test Coverage
Third-Party
Security Audit
04
Gas-Optimized Execution
Engineer contracts and bridge logic for minimal gas consumption. We implement techniques like state channel batching and efficient storage patterns to reduce user transaction costs by up to 40%.
~40%
Avg. Gas Reduction
Optimized
Storage Patterns
05
Relayer & Oracle Infrastructure
Deploy and manage high-availability off-chain relayers and oracle nodes. We provide monitoring, alerting, and 99.9% uptime SLAs for the critical infrastructure that powers your bridge's operations.
99.9%
Uptime SLA
24/7
Monitoring
06
Custom Consumer Logic
Tailor the randomness delivery and settlement logic for your specific use case—NFT minting, gaming, lotteries, or governance. We ensure seamless integration with your existing dApp frontend and backend.
Full Stack
Integration
Custom
Settlement Logic
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Project
Our Cross-Chain Randomness Bridge development delivers verifiable, secure, and scalable infrastructure with clear, measurable results for your application.
01
Verifiable On-Chain Randomness
Deliver provably fair random number generation (RNG) directly on-chain, eliminating reliance on centralized oracles and enabling transparent, trustless gameplay, lotteries, and NFT mints across multiple blockchains.
100%
On-Chain Proof
0
Oracle Dependencies
02
Sub-Second Cross-Chain Finality
Achieve near-instant randomness delivery between chains (e.g., Ethereum → Polygon, Arbitrum → Base) with latency under 500ms, ensuring seamless user experiences for time-sensitive applications like gaming and dynamic NFTs.
< 500ms
Average Latency
> 10k
TPS Supported
03
Enterprise-Grade Security & Audits
Deploy with confidence using battle-tested, formally verified smart contracts. Our bridge architecture undergoes rigorous audits by firms like Trail of Bits and includes a comprehensive bug bounty program.
100%
Formal Verification
Tier-1
Security Audits
04
Reduced Time-to-Market
Leverage our modular, pre-audited bridge components and SDKs to integrate cross-chain randomness into your dApp in under 3 weeks, accelerating your product launch and feature deployment.
< 3 weeks
Integration Time
5+
Supported Chains
05
Predictable, Low-Cost Operations
Eliminate unpredictable gas spikes with our optimized request-batching and fee abstraction layer. Achieve sub-$0.01 average cost per randomness request at scale.
< $0.01
Avg. Cost/Request
99.9%
Uptime SLA
06
Scalable Multi-Chain Architecture
Future-proof your application with a bridge designed for horizontal scaling. Easily add support for new L1s and L2s without architectural overhauls, ensuring your growth is never bottlenecked.
1 day
New Chain Integration
Modular
Architecture
Strategic Infrastructure Decision
Build a Custom Bridge vs. Generic Oracles
Choosing the right infrastructure for cross-chain randomness is critical for security, cost, and performance. This table compares developing a custom verifiable randomness bridge with Chainscore against using a generic oracle solution.
| Key Factor | Generic Oracle Solution | Chainscore Custom Bridge |
|---|---|---|
Architecture Control | ||
Verifiable Randomness Proofs | Limited / Opaque | Fully Transparent (VDF/VRF) |
Gas Cost Per Request | High (Oracle Fees) | Low (Direct Bridge) |
Latency | High (Multi-Step) | Sub-Second Finality |
Security Model | Trusted Third-Party | Trust-Minimized Bridge |
Custom Logic Integration | Not Possible | Fully Customizable |
Time to Production | 1-2 weeks | 4-8 weeks |
Total Cost (First Year) | $10K-$50K+ (Fees) | $50K-$150K (Build) |
Long-Term Scalability | Limited by Provider | Designed for Your Scale |
Audit & Compliance Ready | Their Standard | Your Standards, Our Audit |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to deliver a production-ready, audited cross-chain randomness solution. We manage the entire lifecycle from design to deployment and monitoring.
01
Architecture & Protocol Design
We design a secure, cost-effective bridge architecture, selecting optimal VRF providers (Chainlink VRF, API3 QRNG, Pyth Randomness) and target chains (EVM, Solana, Cosmos) based on your application's needs.
2-3 days
Design Sprint
3+ Protocols
Evaluated
02
Smart Contract Development & Auditing
Our senior Solidity/Rust engineers build the core bridge contracts with formal verification patterns. Every line of code undergoes internal review before submission to a top-tier security firm for a full audit.
100%
Code Coverage
Certified Auditors
Security Partner
03
Relayer & Oracle Integration
We deploy and configure high-availability relayers or oracle networks to fetch randomness proofs and transmit them cross-chain with guaranteed delivery, ensuring liveness and censorship resistance.
99.9%
Uptime SLA
< 2 sec
Relay Latency
04
Testing & Simulation
Comprehensive testing suite including unit tests, integration tests across forked mainnets, and adversarial simulation (e.g., oracle downtime, network congestion) to ensure resilience under edge cases.
500+
Test Cases
Multi-Chain
Test Environment
05
Deployment & Mainnet Launch
We manage the secure deployment process across all target chains, including contract verification, relayer activation, and initial funding. We provide a full handover package and on-call support for launch.
< 1 week
Deployment Timeline
24/7
Launch Support
06
Monitoring & Maintenance
Post-launch, we provide a custom Grafana dashboard for real-time monitoring of bridge health, randomness requests, and gas costs. We offer ongoing maintenance and upgrade plans for protocol updates.
Real-time
Health Alerts
Proactive
Upgrade Management
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
We architect and deploy custom smart contracts for DeFi, NFTs, DAOs, and enterprise applications. Our development process is built on audited security patterns and gas optimization from day one.
- End-to-End Development: From specification and
Solidity/Rustcoding to testing and mainnet deployment. - Security-First: Code reviews, formal verification, and integration with tools like
SlitherandMythX. - Protocol Integration: Native support for
ERC-20,ERC-721,ERC-1155, and custom standards.
We deliver battle-tested contracts that power real value, not just proof-of-concepts.
Our engineers specialize in complex logic for:
- DeFi: Automated market makers (AMMs), lending/borrowing pools, yield aggregators.
- Digital Assets: Generative NFT collections, dynamic tokenomics, royalty engines.
- Governance: DAO frameworks, multi-sig wallets, and voting mechanisms.
Typical Deliverables & Timeline:
- MVP in 2-4 weeks: Functional prototype with core logic.
- Production deployment in 6-8 weeks: Fully audited, optimized, and documented system.
- Post-launch support: Monitoring, upgrade management, and incident response.
We provide clear documentation and developer handoff to ensure your team can own and iterate on the codebase.
Technical & Commercial Details
Cross-Chain Randomness Bridge FAQs
Get clear answers on timelines, security, costs, and technical specifications for our custom cross-chain randomness bridge development service.
A standard, production-ready cross-chain randomness bridge with VRF integration typically deploys in 3-5 weeks. This includes architecture design, smart contract development, security audits, and mainnet deployment. Complex multi-chain integrations or custom randomness algorithms can extend this to 6-8 weeks. We provide a detailed project plan with milestones within the first week of engagement.
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