We architect and build production-ready blockchain systems tailored to your business logic. Our full-stack approach delivers a complete, integrated solution, not just isolated components.
LABS
Services
Cross-Layer KYC Data Availability Service
We build secure, modular data availability layers using Celestia or EigenDA to store and prove KYC attestations, making verified credentials cheaply available across L2s and appchains for compliant payments.
Chainscore © 2026
overview
FULL-STACK ENGINEERING
Custom Blockchain Development
End-to-end blockchain application development from smart contracts to user-facing dApps.
From concept to mainnet, we handle the entire stack so your team can focus on product strategy and user growth.
- Smart Contract Development: Secure, gas-optimized contracts in
Solidity,Rust (Solana), orMove (Aptos/Sui)with comprehensive testing and audit support. - Backend & Indexing: Custom indexers (
The Graphsubgraphs), event listeners, and secure API gateways for reliable off-chain data. - Frontend Integration: Sleek, responsive dApp interfaces using
React/Next.jsorVue, with seamless wallet connectivity (WalletConnect,RainbowKit). - DevOps & Deployment: Automated CI/CD pipelines, mainnet deployment coordination, and infrastructure monitoring for 99.9% uptime SLA.
key-features-cards
ARCHITECTURE
Core Infrastructure Capabilities
Our service is built on a robust, multi-layered infrastructure designed for enterprise-grade reliability, security, and seamless integration. Each component is engineered to deliver verifiable, low-latency KYC data across any blockchain.
01
Decentralized Data Availability Layer
KYC proofs and attestations are anchored on a high-throughput, permissioned L2 network, ensuring data is permanently available and verifiable without relying on a single centralized server.
Client Value: Eliminates data loss risk and provides cryptographic proof of KYC status for compliance audits.
100%
Data Redundancy
< 2 sec
Proof Finality
02
Universal Smart Contract Adapters
Pre-audited, protocol-specific smart contracts (Solidity, Rust, Move) that securely query and verify KYC status on-chain. Includes modules for ERC-20, ERC-721, and custom token standards.
Client Value: Drop-in integration that works with your existing tokenomics and dApp logic in days, not months.
10+
Protocols Supported
OpenZeppelin
Security Standard
03
Real-Time Verification Oracles
A decentralized network of oracles provides sub-second, signed attestations of user KYC status directly to your application logic, enabling instant compliance checks for transactions and interactions.
Client Value: Enforce real-time compliance without sacrificing user experience or transaction speed.
< 500ms
Response Time
99.95%
Uptime SLA
04
Enterprise-Grade Security & Audits
Our entire stack, from data layer to smart contracts, undergoes rigorous third-party audits by firms like Trail of Bits. All data is encrypted in transit and at rest.
Client Value: Mitigate regulatory and technical risk with a platform built to the highest security standards from day one.
Tier-1
Audit Partners
SOC 2 Type II
Compliance
05
Multi-Chain State Synchronization
Maintains a consistent, canonical KYC state across Ethereum, Solana, Polygon, and other supported networks. Changes on one chain are propagated globally within one block confirmation.
Client Value: Offer a unified, compliant user identity that works seamlessly across your multi-chain product ecosystem.
15+
Networks Synced
1 Block
Sync Latency
benefits
TANGIBLE RESULTS
Business Outcomes for Payment Providers
Our Cross-Layer KYC Data Availability Service delivers measurable infrastructure improvements, directly impacting your compliance efficiency and market expansion capabilities.
01
Accelerated Onboarding
Reduce new customer KYC verification from days to minutes by accessing pre-verified, immutable identity data across chains. Eliminate manual document reviews for returning users.
< 5 min
Avg. Onboarding Time
90%
Manual Review Reduction
02
Cross-Chain Compliance
Maintain a unified compliance posture across EVM, Solana, and Cosmos ecosystems. Our service provides a single source of truth for KYC status, preventing regulatory arbitrage.
10+
Protocols Supported
Real-time
Status Sync
03
Fraud & AML Risk Reduction
Leverage cryptographically verified identity graphs to detect and prevent sybil attacks, money laundering, and sanctioned entity transactions before settlement.
99.9%
Data Integrity SLA
Audited
Zero-Knowledge Proofs
04
Operational Cost Savings
Replace expensive, siloed third-party KYC vendors with a single programmable API. Cut compliance overhead and reallocate engineering resources to core product features.
60%
Vendor Cost Reduction
1 API
Unified Integration
05
Faster Market Expansion
Launch compliant services in new jurisdictions and on new blockchains in weeks, not months. Our pre-built adapters and legal frameworks de-risk geographic growth.
< 4 weeks
New Region Launch
Pre-built
Jurisdictional Rules
Strategic Analysis
Build vs. Buy: KYC Data Layer Strategy
A detailed comparison of the time, cost, and risk associated with developing a custom KYC data availability layer versus leveraging Chainscore's managed service.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $50K - $150K |
Annual Maintenance Cost | $100K - $250K (team) | $25K - $75K (SLA) |
Security & Audit Burden | High (your responsibility) | Low (our responsibility, audited) |
Protocol & Chain Updates | Manual integration | Automatic, managed |
Cross-Chain Data Sync | Complex custom logic | Built-in, configurable |
Compliance Coverage | Limited to built checks | Expanding library (AML, sanctions, PEPs) |
Team Expertise Required | Senior Solidity, ZK, DevOps | Integration engineer only |
Uptime & Reliability SLA | Self-managed, variable | 99.9% guaranteed |
Total Cost of Ownership (3 yrs) | $500K - $1.25M+ | $125K - $300K |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
We deliver production-ready KYC data availability infrastructure through a structured, transparent process designed for enterprise security and rapid integration.
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for speed and compliance.
We deliver audit-ready code for ERC-20, ERC-721, and custom protocols, ensuring your token or dApp launches without costly security flaws. Our contracts are built on Solidity 0.8+ with OpenZeppelin standards and include comprehensive unit tests.
- Faster Time-to-Market: Go from spec to mainnet in 2-4 weeks for standard token contracts.
- Security-First Design: Every contract undergoes internal review against common vulnerabilities before delivery.
- Gas Optimization: We minimize transaction costs, a critical factor for user adoption and protocol efficiency.
We don't just write code; we deliver a secure, maintainable foundation for your Web3 product. Our development process integrates with your team for seamless handoff and long-term success.
Cross-Layer KYC
Frequently Asked Questions
Common questions from CTOs and compliance leads about implementing secure, interoperable KYC data availability.
Standard deployments are completed in 3-5 weeks. This includes a 1-week discovery and architecture phase, 2-3 weeks for core development and integration with your existing stack (wallets, smart contracts), and a final week for security review and go-live. Complex multi-chain deployments may extend to 8 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