We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our process is built for security-first development, ensuring your core logic is resilient and your users' assets are protected.
LABS
Services
Zero-Knowledge Identity Attestation Oracles
We build and operate custom oracle networks that generate and verify ZK proofs for off-chain identity claims. Enable your dApp to verify user attributes like credentials or proof-of-humanity without compromising privacy.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- From MVP to Mainnet: We deliver a production-ready contract suite in 2-4 weeks, from initial design through deployment and verification.
- Audit-Ready Code: Built with
Solidity 0.8+andOpenZeppelinstandards, our contracts are structured for seamless third-party security audits. - Gas-Optimized Logic: We implement patterns to reduce transaction costs by up to 40%, directly impacting your users' bottom line.
We don't just write code; we engineer the financial and operational rules of your decentralized business.
key-features-cards
END-TO-END ARCHITECTURE
Core Components We Deliver
We build and deploy the complete technical stack for your ZK Identity Oracle, from cryptographic circuits to production-ready APIs. Each component is designed for enterprise-grade security, scalability, and seamless integration.
01
ZK-Circuit Development
Custom-built zk-SNARK/STARK circuits (Circom, Halo2) for verifying identity credentials off-chain. We optimize for proof generation speed and verification gas costs.
< 2 sec
Proof Gen
~200k gas
On-Chain Verify
02
Attestation Smart Contracts
On-chain verifier contracts and registry logic (Solidity/Vyper) for immutable proof validation and credential state management. Built with OpenZeppelin security patterns.
ERC-4973/ERC-721
Standards
Formal Verification
Security
03
Oracle Node Infrastructure
High-availability node network for fetching, processing, and submitting verifiable credentials. Features decentralized consensus and automatic failover.
99.9%
Uptime SLA
< 1 sec
Latency
04
Developer SDK & APIs
Comprehensive TypeScript/Python SDKs and REST/GraphQL APIs for easy integration into dApps, wallets, and enterprise backends. Includes full documentation.
5+
Language SDKs
2 weeks
Integration Time
05
Compliance & Privacy Layer
Modular components for GDPR/KYC compliance, selective disclosure, and data minimization. Enables enterprise adoption while preserving user privacy.
W3C VC
Standards
Zero-Knowledge
By Default
06
Monitoring & Analytics Dashboard
Real-time dashboard for tracking oracle health, attestation volume, credential status, and system performance metrics. Delivered as a white-label solution.
24/7
Alerting
Custom Metrics
Reporting
benefits
DELIVERABLES
Business Outcomes for Your Product
Our Zero-Knowledge Identity Attestation Oracle delivers verifiable, privacy-preserving credentials directly into your application's logic, unlocking new user experiences and compliance models.
05
Enterprise-Grade Security & Audit Trail
Deploy with confidence using our formally verified ZK circuits and regularly audited oracle contracts. We provide a complete, immutable audit trail of all attestation requests and proofs for compliance reporting and operational transparency.
Formally Verified
ZK Circuits
Quarterly
Security Audits
06
Rapid Integration & Developer Experience
Go from concept to production in weeks, not months. We provide SDKs for React, Node.js, and Python, comprehensive API documentation, and dedicated technical support to integrate ZK identity logic into your existing stack.
< 2 weeks
To Production
5+
SDK Languages
A Cost-Benefit Analysis for Technical Leaders
Build vs. Buy: ZK Identity Oracle Development
Compare the total cost, risk, and time investment of developing a zero-knowledge identity attestation oracle in-house versus partnering with Chainscore Labs.
| Key Factor | Build In-House | Partner with Chainscore |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Core Team Required | 3-5 Senior Engineers | Your Product Team |
Cryptography & ZK Expertise | Must hire/acquire | Included (Our Team) |
Security Audit (Mandatory) | $30K - $100K (External) | Included (Pre-Audited) |
Ongoing Maintenance & Updates | 2+ FTEs ($200K+/year) | Optional SLA ($20K+/year) |
Multi-Chain Deployment | Per-chain integration cost | Included (EVM, L2s, Solana) |
Attestation Schema Library | Build from scratch | Pre-built + Customizable |
Total Year 1 Cost | $480K - $900K+ | $70K - $170K |
Key Risk | High (Security flaws, delays) | Low (SLA-backed, proven) |
how-we-deliver
PREDICTABLE, SECURE, AND SCALABLE
Our Development & Deployment Process
We deliver production-ready ZK identity oracles through a structured, transparent process designed for technical founders and CTOs. From initial design to mainnet deployment, our methodology ensures security, speed, and seamless integration.
01
Architecture & Protocol Design
We design your custom ZK attestation circuit and oracle architecture, selecting optimal proving systems (e.g., Circom, Halo2) and data sources (on-chain events, verifiable credentials).
1-2 weeks
Design Sprint
3+ Options
Architecture Reviewed
02
Circuit Development & Optimization
Our team builds and rigorously optimizes your zero-knowledge circuits for minimal proof generation time and on-chain verification gas costs, using industry-standard frameworks.
< 2 sec
Avg. Proof Gen
< 200k gas
Target Verification
03
Security Audits & Formal Verification
Every circuit and smart contract undergoes multi-layered security review, including internal audits and verification by external firms like Spearbit or Zellic before any deployment.
2+ Rounds
Audit Cycles
Zero Criticals
Release Standard
04
Oracle Node Deployment & Scaling
We deploy and manage high-availability oracle nodes with automated failover, ensuring reliable attestation data delivery with sub-second latency and 99.9% uptime SLA.
99.9%
Uptime SLA
< 500ms
P95 Latency
05
Integration & SDK Provision
Receive a tailored SDK and comprehensive documentation for easy integration into your dApp, supporting multiple languages (JS/TS, Python) and frontend frameworks.
< 1 week
Integration Time
Full SDK
With Examples
06
Monitoring, Maintenance & Upgrades
We provide ongoing monitoring, performance analytics, and protocol upgrades. Our team handles security patches and optimizations post-launch.
24/7
Monitoring
SLA-Backed
Response Time
use-cases
PROVEN USE CASES
Applications Across Web3 Verticals
Our Zero-Knowledge Identity Attestation Oracle delivers verifiable, privacy-preserving credentials that unlock new business models and compliance standards across the decentralized ecosystem.
Zero-Knowledge Identity Attestation Oracles
Frequently Asked Questions
Get clear answers about our ZK identity oracle development process, security, and support.
A ZK Identity Attestation Oracle is a secure, decentralized service that verifies real-world identity credentials (like KYC status or legal jurisdiction) and issues a privacy-preserving attestation on-chain. You need one to build compliant DeFi, DAO governance, or token-gated experiences without exposing user data. We deliver custom oracles that integrate with platforms like Worldcoin, Polygon ID, or your existing KYC provider, enabling selective disclosure of user attributes for regulatory compliance and enhanced user privacy.
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