We architect and deploy production-ready smart contracts that are secure by design. Our process delivers audit-ready code for ERC-20, ERC-721, and custom logic, ensuring your core business logic is resilient and gas-optimized.
Privacy-Preserving Oracle Bridge for ZK-Rollups
Smart Contract Development
Secure, audited smart contracts built by experts to power your Web3 product.
- End-to-End Development: From specification to mainnet deployment and verification.
- Security-First: Built with
OpenZeppelinstandards and formal verification patterns. - Gas Optimization: Every contract is tuned for minimum transaction costs and maximum efficiency.
- Multi-Chain Ready: Deployable on Ethereum, Polygon, Arbitrum, Base, and other EVM-compatible chains.
We deliver battle-tested contracts that reduce your time-to-audit by 60% and provide a foundation you can scale with confidence.
Core Technical Capabilities
Our bridge architecture is purpose-built to deliver verifiable, private data to your zk-rollup applications without compromising on security or performance.
High-Performance Attestation Engine
Our purpose-built attestation nodes sign and commit data with sub-2-second latency and 99.9% uptime SLA. Engineered for high throughput to support real-time applications like perpetual swaps and prediction markets on your rollup.
Business Outcomes for Your Application
Our Privacy-Preserving Oracle Bridge for ZK-Rollups delivers concrete infrastructure improvements, enabling you to build compliant, scalable, and secure applications with confidence.
Regulatory Compliance by Design
Integrate real-world data into your ZK-rollup while maintaining full compliance with data privacy regulations (GDPR, CCPA). Our bridge ensures sensitive off-chain data is never exposed on-chain, eliminating a major legal and operational risk for your product.
Enhanced User Trust & Adoption
Build applications where users can verify outcomes (e.g., loan approvals, identity checks) without revealing their private inputs. This privacy-first approach reduces user friction and builds the trust necessary for mainstream adoption of DeFi, gaming, and identity solutions.
Reduced Infrastructure Overhead
Eliminate the need to build and maintain custom, secure data pipelines. Our managed oracle service provides a single, audited integration point for verified off-chain data, freeing your team to focus on core application logic and reducing time-to-market.
Scalable Data Feeds for ZK-Apps
Access high-frequency, low-latency price feeds, randomness (VRF), and custom API data with cryptographic guarantees. Designed for the high throughput of ZK-rollups, our bridge ensures your dApp performance is never bottlenecked by oracle latency.
Audited Security & Reliability
Deploy with confidence using infrastructure built on formal verification principles and audited by leading security firms. We provide continuous monitoring and robust disaster recovery, ensuring your application's critical data dependencies are always available and secure.
Future-Proof Architecture
Our bridge is protocol-agnostic, supporting StarkNet, zkSync, Scroll, and other leading ZK-rollup frameworks. This ensures your data integration layer remains flexible and portable as the L2 ecosystem evolves, protecting your long-term technical investment.
Phased Development Tiers
Choose the right engagement model for your privacy-preserving oracle bridge, from foundational code to fully managed infrastructure.
| Feature / Deliverable | Starter (Audit & Deploy) | Professional (Managed Launch) | Enterprise (Full Infrastructure) |
|---|---|---|---|
Zero-Knowledge Circuit Design | |||
Solidity Smart Contracts (Bridge Core) | |||
Comprehensive Security Audit Report | |||
Mainnet Deployment & Configuration | |||
Integration with Your ZK-Rollup (ZKsync, Starknet, etc.) | |||
Custom Data Feed Adapter Development | |||
24/7 Performance & Security Monitoring | |||
Guaranteed Uptime SLA | 99.5% | 99.9% | |
Incident Response Time | Best Effort | < 12 hours | < 1 hour |
Dedicated Technical Account Manager | |||
Recurring Architecture Reviews | |||
Estimated Timeline | 6-8 weeks | 10-14 weeks | 16+ weeks |
Typical Engagement | From $75,000 | From $150,000 | Custom Quote |
Our Development & Integration Process
A structured, security-first approach to deliver a production-ready oracle bridge. We focus on rapid integration and verifiable results, not just theoretical promises.
Architecture & Protocol Design
We design a custom bridge architecture tailored to your ZK-rollup (zkSync, Starknet, Polygon zkEVM) and data requirements. This includes defining the zero-knowledge proof circuits for data attestation and the on-chain verification logic.
Smart Contract & Circuit Development
Our team builds and optimizes the core components: the on-chain verifier contract (Solidity/Cairo) and the off-chain prover. We implement privacy-preserving attestation using zk-SNARKs/STARKs to keep data inputs confidential.
Rigorous Security Audits
Every line of code undergoes internal review followed by a formal audit from a top-tier firm like Trail of Bits or Quantstamp. We provide a final audit report and implement all recommendations before deployment.
Oracle Node Deployment & Monitoring
We deploy and manage the high-availability oracle nodes that fetch, prove, and relay data. This includes setting up robust monitoring, alerting, and a 99.9% uptime SLA for data feed reliability.
Testnet Integration & Staging
We deploy the complete system to a testnet (Sepolia, Holesky, zkSync Sepolia) and execute comprehensive integration tests with your dApp. We simulate mainnet conditions and failure scenarios.
Mainnet Launch & Ongoing Support
We manage the secure mainnet deployment and provide 24/7 monitoring and incident response. Our team offers ongoing support for upgrades, new data sources, and scaling the system as your protocol grows.
Build vs. Buy: Custom Bridge vs. Generic Oracles
A technical and economic comparison of developing a custom privacy-preserving oracle bridge in-house versus using a generic oracle service for your ZK-Rollup application.
| Key Factor | Build In-House | Generic Oracle Service | Chainscore Bridge |
|---|---|---|---|
Development Timeline | 6-12 months | 2-4 weeks | 4-8 weeks |
Initial Security Posture | High Risk (unaudited) | Medium Risk (shared audit) | Low Risk (dedicated audit) |
ZK-Circuit Integration | Your team builds | Not Supported | Pre-built & Customizable |
Data Privacy Guarantee | Full control | None (public data) | End-to-end encryption |
Cross-Chain Finality | Your team implements | Varies by chain | < 2 seconds (optimized) |
Ongoing Maintenance | Full DevOps team | Managed by provider | Optional SLA with 24/7 monitoring |
Total Year 1 Cost | $250K - $600K+ | $10K - $50K | $75K - $200K |
Time to First Valid Proof | Months of R&D | Days (data only) | Weeks (full stack) |
Protocol Flexibility | Complete | Limited to provider | Tailored to your stack |
Frequently Asked Questions
Get clear answers on how our ZK-Rollup oracle bridge delivers secure, private, and verifiable off-chain data.
Our bridge uses zero-knowledge proofs to cryptographically verify off-chain data without revealing the raw data on-chain. We implement zk-SNARK circuits to generate succinct proofs of data correctness and availability. The on-chain verifier only sees the proof, not the sensitive inputs, enabling private DeFi, gaming, and identity applications. All circuits are built with Circom and audited for security.
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today.
Our experts will offer a free quote and a 30min call to discuss your project.