We provide dedicated, high-availability nodes for Ethereum, Polygon, Solana, and other major chains, ensuring 99.9% uptime for your core transaction layer. Our infrastructure eliminates the operational overhead of self-hosting.
LABS
Services
Privacy-Preserving Oracle Data Fetching
Chainscore builds secure oracle infrastructure that fetches and verifies sensitive external data (credit scores, RWA details) using zero-knowledge proofs and secure multi-party computation, delivering only cryptographic proofs to Bitcoin and Lightning applications.
Chainscore © 2026
overview
RELIABLE FOUNDATION
Blockchain Infrastructure for FinTechs
Enterprise-grade node infrastructure and APIs to power your financial applications.
Access real-time blockchain data and execute transactions with sub-second latency through our optimized RPC endpoints and WebSocket streams.
- Guaranteed Performance: SLAs for uptime, latency, and request success rates.
- Enhanced Security: Isolated environments, DDoS protection, and regular security audits.
- Scalable Architecture: Automatically handle traffic spikes without service degradation.
- Full Protocol Support: From
BaseandArbitrumtoCosmosandAvalanche.
key-features-cards
ENTERPRISE-GRADE SECURITY
Core Capabilities of Our Privacy Oracle Service
Our service delivers verifiable, off-chain data to smart contracts while preserving user and transaction privacy. Built for applications requiring confidential inputs for DeFi, identity, and enterprise use cases.
01
Zero-Knowledge Proof Integration
Fetch and attest to off-chain data, then deliver a ZK proof of its validity to your contract. Enables private DeFi positions, confidential voting, and sensitive data feeds without exposing the underlying information.
Groth16 & Plonk
Proof Systems
< 2 sec
Proof Generation
02
Multi-Source Data Aggregation
Pull data from multiple trusted APIs (e.g., Chainlink, Pyth, custom enterprise sources) and compute a privacy-preserving aggregate value. Reduces reliance on single points of failure and manipulation.
5+ Sources
Default Aggregation
99.9%
Data Consistency SLA
03
Fully-Verifiable On-Chain Delivery
Every data point is delivered with cryptographic attestations signed by our decentralized operator network. Provides cryptographic guarantees of data provenance and integrity, audit-ready for enterprises.
Ed25519 & BLS
Signature Schemes
100%
On-Chain Verifiability
04
Custom Compute & Confidential ML
Execute private off-chain computations (e.g., credit scoring, risk models, ML inferences) on encrypted inputs. Deliver only the authorized result to the smart contract, keeping the logic and data confidential.
TEEs & FHE
Supported Enclaves
Custom
Logic Deployment
05
Decentralized Operator Network
Data fetching and attestation is performed by a permissioned, geographically distributed network of nodes. Eliminates single points of failure and collusion risks for high-value applications.
10+ Operators
Initial Network
99.95%
Network Uptime SLA
benefits
DELIVERING TANGIBLE VALUE
Business Outcomes for Your Application
Our privacy-preserving oracle service is engineered to deliver measurable business results, from accelerated development to enhanced user trust and security compliance.
01
Accelerated Time-to-Market
Integrate verified, real-world data into your dApp in under 2 weeks. Our pre-built connectors and developer SDKs eliminate months of custom oracle development.
< 2 weeks
Integration Time
50+
Pre-built Data Feeds
02
Enhanced Data Security & Privacy
Fetch data without exposing sensitive user queries or application logic. Our zero-knowledge proof (ZKP) circuits ensure data integrity while preserving on-chain privacy.
100%
Query Privacy
ZK-SNARKs
Privacy Standard
03
Reduced Infrastructure Overhead
Eliminate the cost and complexity of running your own oracle nodes. We manage the entire data pipeline with a 99.9% uptime SLA, so you can focus on core product features.
99.9%
Uptime SLA
$0
Node Maintenance
04
Regulatory & Compliance Readiness
Build applications that meet data privacy regulations like GDPR and MiCA. Our architecture provides audit trails for data provenance without compromising user anonymity.
GDPR
Compliant Design
Full Audit Trail
Data Provenance
05
Superior User Experience
Deliver fast, reliable, and private DeFi, gaming, or identity applications. Users benefit from accurate data and seamless interactions, driving higher engagement and retention.
< 1 sec
Data Latency
Zero Gas
For Users
06
Future-Proof Architecture
Our modular system supports multi-chain deployments and adapts to new data sources and privacy techniques. Scale confidently as your application and user base grow.
10+
Supported Chains
Modular
Design
Strategic Comparison
Build vs. Buy: Developing a Privacy Oracle In-House
A detailed breakdown of the costs, risks, and resource commitments required to build your own privacy-preserving oracle versus leveraging Chainscore's production-ready solution.
| Critical Factor | Build In-House | Chainscore Platform |
|---|---|---|
Time to Production | 6-12+ months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Annual Maintenance & Ops | $150K - $300K | Included in SLA |
Security & Audit Burden | High (Your Risk) | Low (Our Guarantee) |
Expertise Required | ZK/MPC, Node Ops, DevSecOps | Your Core Logic Only |
Uptime SLA & Monitoring | You Build & Maintain | 99.9% Guaranteed |
Protocol Upgrades & Patches | Your Responsibility | Managed & Backward Compatible |
Support & Incident Response | Internal Team On-Call | 24/7 Dedicated SRE |
Total 3-Year Cost of Ownership | $700K - $1.5M+ | $150K - $450K |
how-we-deliver
METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to integrating privacy-preserving oracles into your production environment, minimizing risk and accelerating time-to-market.
01
Architecture & Threat Modeling
We conduct a comprehensive analysis of your application's data flow and threat surface to design a secure oracle integration. This includes defining trust boundaries, data sensitivity levels, and the optimal cryptographic primitives (ZKPs, MPC, TEEs) for your use case.
Oracles
Architected
Security Review
Initial
02
Cryptographic Implementation
Our engineers develop and integrate the core privacy layer using battle-tested libraries like zk-SNARKs (Circom, Halo2) or secure multi-party computation (MPC). We ensure on-chain verification is gas-optimized and compatible with your target L1/L2.
Zero-Knowledge
Proof Systems
Gas Cost
Optimized
03
Oracle Node Deployment
We provision, configure, and secure the off-chain oracle nodes responsible for fetching, processing, and cryptographically attesting external data. Deployment includes redundancy, load balancing, and monitoring for high availability.
99.9%
Uptime SLA
Global
Node Distribution
04
Smart Contract Integration
We write and audit the on-chain smart contracts that verify oracle attestations and consume the privacy-preserving data. Contracts are built with OpenZeppelin standards and include fail-safes for oracle downtime.
Solidity 0.8+
Code Standard
Security
Audit-Ready
05
Testing & Security Audit
Rigorous testing across unit, integration, and adversarial scenarios. We prepare a comprehensive audit package for external review by firms like Trail of Bits or Quantstamp, ensuring no vulnerability in the data pipeline.
Adversarial
Test Cases
Audit Report
Delivered
06
Production Monitoring & Support
Post-deployment, we provide 24/7 monitoring of oracle health, data accuracy, and system performance. Our team offers ongoing support for upgrades, new data sources, and scaling requirements.
24/7
Monitoring
SLA-Backed
Support
security
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production from day one.
We architect and deploy battle-tested smart contracts that form the backbone of your Web3 application. Our development process ensures security-first design, gas optimization, and comprehensive audit readiness before deployment to mainnet.
We deliver production-ready code in 2-4 weeks, with a 99.9% success rate on first audit pass using firms like OpenZeppelin and CertiK.
- Custom Logic: Tailored
Solidity 0.8+/Vypercontracts for DeFi, NFTs, DAOs, and enterprise use cases. - Security Patterns: Implementation of
OpenZeppelinlibraries and established best practices to mitigate reentrancy, overflow, and access control risks. - Full Lifecycle Support: Development, testing (
Hardhat/Foundry), deployment, verification, and upgrade management via transparent proxies.
Privacy-Preserving Oracle Data Fetching
Frequently Asked Questions
Get clear answers on how we deliver secure, verifiable off-chain data to your smart contracts without exposing sensitive information.
We use a multi-layered approach combining TLSNotary proofs and trusted execution environments (TEEs) like Intel SGX. Our oracles fetch data from traditional APIs, generate cryptographic proofs of the data's authenticity and integrity within a secure enclave, and deliver only the verified result to your smart contract. The raw request and response data remain confidential, protecting your data sources and query patterns.
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