We architect and deploy custom smart contracts that form the secure backbone of your Web3 application. Our development process is built on OpenZeppelin standards and rigorous security practices, ensuring your logic is both robust and upgradeable.
LABS
Services
Cross-Chain Verifiable Credential Issuance
Build systems to issue, sign, and anchor W3C Verifiable Credentials on one chain while enabling their trustless verification and usage on entirely different blockchain ecosystems, ensuring credential portability.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by expert Solidity engineers.
- Full Lifecycle Delivery: From initial design and
Solidity/Vyperdevelopment to deployment, verification, and ongoing maintenance. - Security-First: Every contract undergoes internal review and is prepared for third-party audits from firms like CertiK or Quantstamp.
- Protocol-Specific Expertise: Custom logic for
ERC-20,ERC-721,ERC-1155, staking systems, DAO governance, and bespoke DeFi primitives.
We deliver contracts that are gas-optimized, secure by design, and ready for mainnet, reducing your time-to-market from months to weeks.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Technical Capabilities We Deliver
Our modular, audited architecture provides the foundational building blocks for secure, scalable, and interoperable credential systems. We handle the complex infrastructure so you can focus on your application logic.
01
Custom Credential Schema Design
We architect W3C-compliant Verifiable Credential schemas tailored to your specific use case (KYC, diplomas, memberships). Includes on-chain registry deployment and off-chain issuance logic with selective disclosure.
W3C VC
Compliant
ERC-3668/4973
Standards
02
Multi-Chain Issuer Node Deployment
Deploy and manage secure, high-availability issuer nodes across EVM chains (Ethereum, Polygon, Arbitrum) and non-EVM ecosystems (Solana, Cosmos). Includes load balancing and automated failover.
99.9%
Uptime SLA
< 2 sec
Avg. Issue Time
03
Zero-Knowledge Proof Integration
Implement zk-SNARKs (Circom) or zk-STARKs for privacy-preserving credential verification. Prove specific claims (e.g., age > 18) without revealing underlying data, enabling compliant anonymity.
Circom/Halo2
Frameworks
< 500ms
Proof Generation
04
Cross-Chain State & Revocation Sync
Maintain a consistent, real-time revocation status and credential state across all supported chains using our proprietary relay network and optimistic verification system.
Sub-5s
Sync Latency
Gasless
Updates
06
Developer SDKs & APIs
Comprehensive TypeScript/Go SDKs and REST/GraphQL APIs for seamless integration into your frontend or backend. Includes webhook support for real-time event notifications.
TypeScript/Go
SDKs
24h
Integration Support
benefits
TANGIBLE RESULTS
Business Outcomes: Why Portability Matters
Cross-chain verifiable credentials unlock new business models and operational efficiencies. Here’s how our infrastructure delivers measurable value.
01
Expand Your Addressable Market
Issue credentials once, use them across any EVM or non-EVM chain. Eliminate siloed user bases and onboard customers from any ecosystem without rebuilding your identity layer.
15+
Supported Chains
0
Re-issuance Required
02
Reduce Compliance & Integration Costs
A single, auditable source of truth for credentials slashes the cost of maintaining multiple KYC/AML or attestation systems per chain. Simplify audits and regulatory reporting.
70%
Lower OpEx
1 System
To Manage
03
Accelerate Time-to-Market for New Chains
Launch your dApp on a new L2 or appchain in days, not months. Your existing user credentials and reputation port seamlessly, removing the biggest barrier to chain expansion.
< 1 week
New Chain Launch
Instant
User Migration
04
Enhance User Experience & Retention
Users keep their identity, reputation, and access rights as they move between chains. Eliminate friction, reduce drop-off, and build loyal, cross-chain communities.
40%+
Higher Retention
0 Clicks
To Re-verify
05
Future-Proof Against Chain Evolution
Modular and L2-centric future requires portable identity. Our infrastructure abstracts chain complexity, ensuring your credential system remains viable through any ecosystem shift.
Zero
Migration Cost
Always
Interoperable
Infrastructure Decision Matrix
Build vs. Buy: Cross-Chain VC Issuance
A detailed comparison of the costs, risks, and timelines associated with building a custom verifiable credential issuance system 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 | $150K - $400K+ | $25K - $75K |
Security Audit Requirement | Mandatory (extra $30K-$100K) | Included (pre-audited templates) |
Ongoing Maintenance & Updates | 1-2 FTEs ($200K+/year) | Included in subscription |
Cross-Chain Protocol Support | Custom integration per chain | Pre-built for Ethereum, Polygon, Arbitrum, Base, Solana |
Compliance & Revocation Logic | Custom development | Pre-configured, customizable modules |
Uptime & Reliability SLA | Your responsibility | 99.9% SLA with monitoring |
Expertise Required | Specialized team in ZK, VCs, MPC | Our team handles complexity |
Total Cost of Ownership (Year 1) | $380K - $700K+ | $75K - $175K |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
We deliver production-ready, secure cross-chain credential systems through a structured, transparent process designed for enterprise reliability and rapid deployment.
01
Architecture & Protocol Design
We design your credential schema and issuance flow, selecting optimal standards (W3C VC, EIP-712, EIP-5843) and target chains (EVM, Solana, Cosmos) based on your use case and compliance requirements.
2-3 days
Design Sprint
W3C / EIP
Standards Compliant
02
Smart Contract & ZK Circuit Development
Our engineers build and audit the core on-chain logic for credential issuance and revocation, alongside zero-knowledge circuits for selective disclosure, ensuring privacy and verifiability.
OpenZeppelin
Security Patterns
Circom / Halo2
ZK Frameworks
03
Cross-Chain Integration & Bridging
We implement secure message passing (e.g., LayerZero, Axelar, Wormhole) or state proofs to enable credential verification across any supported blockchain, maintaining data integrity and issuer sovereignty.
5+
Supported Chains
CCIP Read
Patterns Used
04
Security Audit & Formal Verification
Every component undergoes rigorous internal review and optional third-party audit (e.g., with Spearbit, Code4rena) before deployment. We provide a verifiable audit report for your stakeholders.
100%
Code Coverage Goal
CertiK / Halborn
Audit Partners
05
Deployment & Infrastructure Setup
We handle the full deployment lifecycle: contract deployment with secure multisig, indexer setup (The Graph), RPC node provisioning, and monitoring dashboard configuration for real-time insights.
< 1 week
Go-Live Timeline
99.9% SLA
Infra Uptime
use-cases
ENTERPRISE-GRADE APPLICATIONS
Primary Use Cases & Industries
Chainscore's cross-chain verifiable credential issuance infrastructure powers trustless identity and compliance for high-value, regulated industries. We deliver production-ready systems with enterprise SLAs.
01
DeFi & On-Chain KYC/AML
Issue portable, privacy-preserving credentials for compliant DeFi access. Enable permissioned pools and regulatory reporting without exposing sensitive user data. Built with zero-knowledge proofs for selective disclosure.
< 500ms
Credential Verification
SOC 2 Type II
Compliance
02
Enterprise Supply Chain Provenance
Digitize certificates of origin, sustainability claims, and quality audits as tamper-proof credentials. Enable seamless verification across EVM, Cosmos, and Solana ecosystems for end-to-end traceability.
Multi-Chain
Interoperability
Immutable
Audit Trail
03
Gaming & NFT Reputation Systems
Issue verifiable achievement badges, player skill ratings, and asset provenance credentials that are portable across games and marketplaces. Prevent Sybil attacks and enable true digital identity.
Sub-Second
Mint Time
ERC-1155/6551
Standards
04
Institutional Onboarding & Accreditation
Streamline investor accreditation (Reg D/Reg S) and employee credentialing with credentials that verify across private and public chains. Reduce manual compliance overhead by 80%.
80%
Faster Onboarding
W3C VC
Standard
05
Healthcare Data Portability
Securely issue verifiable health credentials, vaccination records, and professional licenses. Enable patient-controlled data sharing across healthcare providers and research institutions with HIPAA-compliant infrastructure.
HIPAA-Aligned
Data Governance
ZK-Proofs
Privacy
06
Real-World Asset (RWA) Tokenization
Anchor off-chain legal titles, insurance policies, and regulatory approvals to on-chain tokens. Our credential bridges ensure continuous compliance for tokenized securities, real estate, and commodities.
Legal Opinion
Backed
99.9% SLA
Bridge Uptime
Cross-Chain Verifiable Credential Issuance
Frequently Asked Questions
Get clear answers on how we deliver secure, interoperable digital credentials for your Web3 applications.
From initial design to production deployment, a standard implementation takes 4-8 weeks. This includes protocol selection, smart contract development, integration with your existing systems, and a full security audit. For proof-of-concept deployments with limited scope, we can deliver a working demo in as little as 2 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