We architect and deploy custom smart contracts that form the secure backbone of your application. Our development process is built on audited code patterns and gas optimization from day one, ensuring reliability and cost-efficiency at scale.
LABS
Services
ZK-Rollup Optimized Random Oracle Design
We design and build high-throughput, low-cost randomness oracles specifically architected for ZK-rollup environments. Our solutions leverage native proving systems for efficient, verifiable random number delivery to your dApp.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your token, DeFi, or NFT project.
From initial concept to mainnet deployment, we handle the full lifecycle with precision and security-first rigor.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155contracts with advanced features like vesting, minting controls, and governance hooks. - DeFi Protocols: Lending/borrowing pools, automated market makers (AMMs), staking mechanisms, and yield aggregators.
- Security & Audits: Development with OpenZeppelin standards, followed by internal review and coordination with top external audit firms.
- Integration Ready: Contracts are delivered with comprehensive documentation and test suites for seamless integration with your front-end.
key-features-cards
ENGINEERED FOR SCALE
Architected for ZK-Rollup Performance
Our random oracle is built from the ground up for the unique demands of ZK-rollup ecosystems, delivering verifiable randomness without compromising on speed, cost, or security.
01
ZK-Native Proof Generation
On-chain randomness proofs are generated directly within the ZKVM, eliminating cross-chain latency and slashing finality time. This native integration is the foundation for sub-second oracle responses.
< 1 sec
Proof Generation
Zero
Cross-Chain Latency
02
Gas-Optimized for L2 Economics
We architect circuits and contracts to minimize L1 verification costs. Our designs leverage rollup-specific opcodes and storage patterns, reducing the gas burden of randomness requests by up to 70% compared to generic oracles.
~70%
Gas Reduction
L2 Native
Cost Structure
03
Deterministic Finality Alignment
Oracle state updates are synchronized with rollup batch finality. This guarantees that randomness is immutable and available precisely when your application's state transitions are settled, preventing reconciliation errors.
100%
Finality Sync
No Forks
Consistency Guarantee
04
High-Frequency Request Handling
Built for applications requiring rapid, sequential randomness (e.g., gaming, auctions). Our system supports thousands of requests per second within a single batch, maintaining cryptographic integrity throughout.
1k+ TPS
Request Capacity
Sequential
Randomness Support
05
Audited Security Model
The entire stack—from VDF circuits to on-chain verifiers—undergoes rigorous audits by firms like Spearbit. We implement formal verification for critical components, providing a verifiable trust root for your application.
Spearbit
Audit Partner
Formal Verification
Critical Components
06
Protocol-Agnostic Integration
Seamlessly deploy with StarkNet, zkSync, Scroll, or Polygon zkEVM. We provide tailored SDKs and adapters for each ecosystem, ensuring a smooth integration path in under two weeks.
4+
ZK Ecosystems
< 2 weeks
Integration Timeline
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Rollup dApp
Our ZK-Rollup Optimized Random Oracle Design translates into concrete, measurable advantages for your application's performance, security, and go-to-market strategy.
01
Sub-Second Randomness Finality
Achieve provably fair, on-chain randomness with finality in under 500ms. Eliminate the latency and uncertainty of traditional RNG solutions, enabling real-time, high-stakes dApp features like instant NFT reveals and live gaming outcomes.
< 500ms
Finality Time
Layer 2 Native
Execution
02
Gas Cost Reduction >90%
Drastically lower transaction fees for your users. Our oracle design processes randomness requests and proofs off-chain, submitting only a single, aggregated verification to L1. This slashes the per-operation gas cost compared to direct L1 oracle calls.
> 90%
Cost Reduction
ZK-Proof Batch
Mechanism
03
Formally Verified Security
Deploy with confidence. Our oracle circuits and smart contracts undergo rigorous formal verification and audits by industry-leading firms like Trail of Bits. We guarantee resistance to common vulnerabilities, including predictable RNG and front-running attacks.
Formal Verification
Security Standard
Trail of Bits
Audit Partner
04
Seamless Integration in < 2 Weeks
Go from concept to production fast. We provide a complete SDK, comprehensive documentation, and dedicated technical support for integration with your existing zkSync, StarkNet, or Polygon zkEVM stack, ensuring a smooth and rapid deployment.
< 2 weeks
Integration Time
Full SDK & Docs
Deliverables
05
99.9% Uptime SLA
Guaranteed reliability for your core application logic. Our decentralized oracle network with multi-provider fallback ensures high availability, backed by a service level agreement. Your dApp's random number generation will not be a single point of failure.
99.9%
Uptime SLA
Multi-Provider
Architecture
06
Customizable Randomness Logic
Tailor the oracle to your exact use case. We implement application-specific requirements, such as verifiable delay functions (VDFs) for leader election, bounded randomness for game balancing, or commit-reveal schemes for fair launches.
VDF, Commit-Reveal
Supported Schemes
White-Glove Design
Service
Infrastructure Decision Analysis
Build vs. Buy: ZK-Rollup Random Oracle
A detailed comparison of the total cost, risk, and time commitment required to develop a secure, production-grade ZK-Rollup Random Oracle in-house versus using Chainscore's managed service.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Security Audit Requirement | Mandatory (External) | Included (Pre-Audited) |
Cryptographic Expertise Needed | Senior ZK/MPC Engineer | Abstracted (Our Team) |
Ongoing Maintenance & Updates | Full-time DevOps + Dev | Fully Managed SLA |
Uptime & Reliability SLA | Your Responsibility | 99.9% Guaranteed |
Integration Complexity | High (Custom R&D) | Low (API & SDK) |
Total Cost of Ownership (Year 1) | $300K - $700K+ | $75K - $200K |
Scalability to Other L2s | Custom Work per Chain | Included (Multi-Chain) |
VDF/DRB Protocol Updates | Manual Implementation | Automatic Backwards-Compatible Upgrades |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND SECURE
Our Delivery Process: From Design to Mainnet
A structured, four-phase engagement model designed for technical leaders. We deliver a production-ready, audited ZK-Rollup random oracle with clear milestones, fixed timelines, and guaranteed SLAs.
01
Phase 1: Architecture & Protocol Design
We define the cryptographic primitives, data availability strategy, and economic security model for your custom oracle. Deliverables include a technical specification document and a threat model analysis.
2-3 weeks
Design Sprint
1 document
Final Spec
02
Phase 2: Core Circuit & Smart Contract Development
Implementation of the ZK-SNARK/STARK verifier circuit (using Circom/Halo2) and the on-chain L1/L2 smart contracts. Includes gas optimization and initial internal security review.
4-6 weeks
Development
Solidity 0.8+
Standards
03
Phase 3: Security Audit & Testnet Deployment
Comprehensive audit by a third-party security firm (e.g., Trail of Bits, Quantstamp). Concurrent deployment to a public testnet (Sepolia, Holesky) for integration testing and bug bounty setup.
3-4 weeks
Audit Cycle
> 95%
Code Coverage
04
Phase 4: Mainnet Launch & Monitoring
Managed production deployment to Ethereum mainnet or your target L1. We provide a 30-day monitoring period with 24/7 alerting, performance dashboards, and final handover documentation.
99.9%
Uptime SLA
< 1 week
Deployment
security-approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic and audited for enterprise deployment.
We architect and deploy custom smart contracts that power your Web3 application. Our development process is built for security and speed, delivering audit-ready code in 2-4 weeks for most MVPs. We specialize in:
- DeFi Protocols: DEXs, lending/borrowing platforms, yield aggregators.
- NFT Ecosystems: ERC-721A/1155 marketplaces, generative collections with on-chain metadata.
- Utility & Governance: ERC-20 tokens with vesting, DAO frameworks, and multi-sig wallets.
We don't just write code; we engineer systems that are secure by design and cost-efficient to operate.
Our contracts are built on a foundation of proven security patterns using Solidity 0.8+ and audited libraries like OpenZeppelin. Every project includes:
- Gas Optimization: Code reviewed for efficiency, reducing user transaction costs by 15-40%.
- Comprehensive Testing: Full test suites with >95% coverage, simulating mainnet conditions.
- Deployment & Verification: Full support for deployment on Ethereum, Polygon, Arbitrum, and other EVM chains, with source code verification on block explorers.
Partner with us to turn your concept into a live, secure, and maintainable on-chain product.
Technical & Commercial Details
ZK-Rollup Random Oracle FAQs
Answers to the most common questions from CTOs and technical leads evaluating a custom random oracle for their ZK-rollup.
A complete, production-ready ZK-Rollup Optimized Random Oracle typically takes 4-8 weeks from kickoff to mainnet deployment. This includes 1-2 weeks for architectural design and specification, 2-4 weeks for core development and integration, and 1-2 weeks for security audits and final testing. For standard implementations, we deliver a working testnet prototype within the first 3 weeks.
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