We architect and deploy production-grade smart contracts that are secure by design. Our development process is built on OpenZeppelin standards and rigorous internal audits before any third-party review.
LABS
Services
Cross-Rollup Oracle Feeds & Data Availability
Implement decentralized oracle networks and data availability layers designed to serve consistent, high-integrity price and data feeds across multiple heterogeneous rollups.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Custom Smart Contract Development
Secure, audited smart contracts built on a foundation of battle-tested security patterns.
From token economies to complex DeFi logic, we translate your business requirements into efficient, gas-optimized Solidity code.
- Protocol Development: Custom
ERC-20,ERC-721,ERC-1155, and bespoke token standards. - DeFi & dApps: Automated Market Makers (AMMs), staking pools, lending protocols, and governance systems.
- Security First: Every contract undergoes static analysis, formal verification, and peer review prior to external audit by firms like CertiK or Quantstamp.
- Full Lifecycle Support: Development, testing, deployment, and ongoing upgrade management via transparent proxy patterns.
key-features-cards
ARCHITECTURE & DELIVERABLES
Core Technical Capabilities
Our engineering team delivers production-ready, secure infrastructure for cross-rollup data. We focus on measurable outcomes: guaranteed uptime, rapid deployment, and battle-tested security.
01
Cross-Rollup Oracle Aggregation
Build custom oracle feeds that aggregate and verify data from multiple sources (Chainlink, Pyth, API3) for seamless delivery across Arbitrum, Optimism, Base, and zkSync. We ensure data consistency and sub-second finality for DeFi applications.
< 1 sec
Finality
5+ Sources
Aggregated
02
Secure Data Availability Layer
Implement a robust data availability solution using Celestia, EigenDA, or Ethereum calldata. We architect systems for cost-efficient, verifiable data publishing with cryptographic guarantees, preventing data withholding attacks.
99.9%
Uptime SLA
Cost-Optimized
Architecture
03
Zero-Knowledge Proof Integration
Incorporate zk-SNARKs and zk-STARKs for privacy-preserving data attestation and scalable state verification. We develop circuits using Circom and Halo2 to prove data correctness without revealing underlying information.
Circom/Halo2
Stack
Audited
Circuits
04
Modular Smart Contract Development
Deploy upgradeable, gas-optimized smart contracts in Solidity 0.8+ and Vyper. We use OpenZeppelin libraries and follow security best practices, with all code undergoing formal verification and third-party audit readiness.
Solidity 0.8+
Language
OpenZeppelin
Standards
05
High-Availability Node Infrastructure
Manage dedicated, geo-distributed RPC nodes and validators for major L1/L2 networks. We provide monitoring, failover, and 24/7 incident response to ensure your oracle feeds maintain sub-100ms latency and >99.9% reliability.
< 100ms
Latency
24/7 SRE
Support
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Protocol
Our cross-rollup oracle and data availability services deliver measurable results that directly impact your protocol's security, scalability, and market position.
01
Provably Secure Data Feeds
Multi-sourced, cryptographically verifiable price and data feeds with on-chain attestations. Eliminate oracle manipulation risks and ensure your DeFi protocol operates on accurate, tamper-proof data.
99.9%
Uptime SLA
< 1 sec
Update Latency
02
Seamless Multi-Chain Integration
Deploy your protocol across Arbitrum, Optimism, Base, and zkSync with a single, unified data feed. We handle the cross-rollup messaging and state verification, accelerating your expansion by weeks.
5+
Supported L2s
2 weeks
Avg. Integration Time
03
Cost-Optimized Data Availability
Leverage our modular DA layer to reduce on-chain storage costs by up to 90% compared to Ethereum mainnet. Pay only for the data you need with flexible, usage-based pricing.
90%
Cost Reduction
EIP-4844
Blob Compatible
05
Enterprise-Grade Reliability
Built on a globally distributed, fault-tolerant node network. Our infrastructure is monitored 24/7 with automated failover, ensuring your protocol's core dependencies never go offline.
100%
Historical Uptime
< 60 sec
Failover Time
06
Regulatory & Audit Readiness
All data pipelines and security models are designed for transparency. Receive detailed attestation reports and audit trails to simplify security reviews and regulatory compliance.
SOC 2
Compliance
Real-time
Audit Logs
Make an informed infrastructure decision
Build vs. Buy: Cross-Rollup Data Strategy
A detailed comparison of the total cost, risk, and time commitment for developing and maintaining a custom cross-rollup data solution versus using Chainscore's managed oracle feeds.
| Key Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $25K - $75K setup |
Annual Maintenance & Ops Cost | $150K - $300K | Starts at $60K/year |
Security & Audit Overhead | High (unaudited code, custom risk) | Low (pre-audited, battle-tested patterns) |
Data Source Integration | Your team builds & maintains | Pre-integrated 50+ sources (Chainlink, Pyth, etc.) |
Cross-Rollup Messaging | Custom L1/L2 bridge logic required | Native support for Arbitrum, Optimism, Base, zkSync |
Uptime & Reliability SLA | Your responsibility (target 99%) | 99.9% guaranteed uptime |
Team Expertise Required | Senior Solidity, DevOps, Cryptography | Your team focuses on core product |
Scalability to New Chains | Months of development per chain | Weeks, via our modular architecture |
Total 3-Year Cost (Est.) | $700K - $1.5M+ | $205K - $285K |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology
We deliver production-ready cross-rollup oracle feeds through a structured, security-first approach that reduces your time-to-market and operational risk.
01
Architecture & Design Review
We analyze your rollup stack (Arbitrum, Optimism, zkSync, etc.) and data requirements to design a custom oracle architecture. This ensures optimal data freshness, cost efficiency, and security for your specific L2 environment.
2-3 days
Design Sprint
5+ L2s
Protocol Experience
02
Smart Contract Development & Auditing
Our engineers build custom adapter and relay contracts in Solidity/Vyper, implementing OpenZeppelin patterns. Every contract undergoes internal review followed by a formal audit from a partner like Spearbit or Code4rena before deployment.
100%
Audited Code
OZ Patterns
Security Standard
03
Node Infrastructure Deployment
We provision and configure high-availability node infrastructure across multiple cloud regions. This includes fault-tolerant data fetchers, attestation layers, and relayers with automated failover to guarantee uptime.
99.9%
Uptime SLA
< 500ms
Relay Latency
04
Integration & Testing
We integrate the oracle feed with your dApp's smart contracts and provide a comprehensive test suite covering unit, integration, and chaos testing scenarios. We deliver a staging environment for your team to validate before mainnet launch.
2 weeks
Typical Timeline
Full Suite
Test Coverage
05
Monitoring & Maintenance
Post-deployment, we provide 24/7 monitoring dashboards for data accuracy, latency, and node health. Our team manages upgrades, key rotation, and protocol changes, backed by a clear incident response SLA.
24/7
Monitoring
1-hr
Response SLA
06
Documentation & Knowledge Transfer
We deliver complete technical documentation, integration guides, and runbooks. We conduct handover sessions with your engineering team to ensure full operational ownership and understanding of the system.
Complete
API Docs
2 Sessions
Handover
From Design to Production
Typical 8-Week Project Timeline
A structured delivery plan for implementing a custom cross-rollup oracle feed, from initial architecture to mainnet deployment and ongoing support.
| Phase & Deliverables | Weeks 1-2 | Weeks 3-4 | Weeks 5-6 | Weeks 7-8 |
|---|---|---|---|---|
Architecture & Specification | Requirements analysis, data source mapping, rollup target selection, finalize tech spec | |||
Core Smart Contract Development | Audited oracle core & aggregation logic | Custom adapter contracts for target L2s (e.g., Arbitrum, zkSync) | ||
Data Availability Layer Integration | Integration with Celestia/Avail or chosen DA solution, proof generation | End-to-end data attestation pipeline | ||
Testing & Security | Unit & integration testing | Internal audit, testnet deployment, bug bounty setup | Third-party audit review & fixes | |
Deployment & Go-Live | Staging environment deployment | Mainnet deployment on all target chains, monitoring setup | ||
Post-Launch Support | 30-day warranty support, performance tuning, documentation handoff |
Cross-Rollup Oracle Feeds & Data Availability
Frequently Asked Questions
Get clear answers on how we deliver secure, low-latency data feeds across any rollup stack.
Standard deployments take 2-4 weeks. This includes architecture design, smart contract development, node deployment, and integration testing. For complex multi-chain feeds or novel data types, timelines extend to 6-8 weeks. We provide a detailed project plan within 48 hours of initial scoping.
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