We architect and deploy custom Solidity/Rust contracts that are secure by design. Our process includes formal verification, comprehensive unit testing, and integration with leading audit firms to ensure your core logic is bulletproof before mainnet deployment.
LABS
Services
KYC Immutable Audit Log Chain
A dedicated, append-only blockchain providing an immutable, cryptographically-verifiable record of all KYC data access and modifications for forensic audits and regulatory compliance.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Custom Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155implementations with advanced features like vesting, minting controls, and governance hooks. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield optimizers.
- Enterprise Logic: Multi-signature wallets, asset tokenization platforms, and custom business logic for on-chain workflows.
- Gas Optimization: Every contract is optimized for minimum gas consumption, reducing end-user costs by up to 40%.
We don't just write code; we deliver auditable, maintainable infrastructure. Get a production-ready MVP in as little as 2-3 weeks, backed by a 99.9% uptime SLA for deployed contracts.
key-features-cards
ARCHITECTURE OVERVIEW
Core Architecture for Unbreakable Audit Trails
Our enterprise-grade KYC audit log chain is built on a foundation of cryptographic integrity and regulatory compliance, delivering a verifiable, tamper-proof record for financial institutions and FinTechs.
01
Immutable Data Anchoring
Every KYC event is cryptographically hashed and anchored to a public blockchain (Ethereum, Polygon) via a Merkle root, creating a permanent, timestamped proof of record existence that is independently verifiable by regulators.
SHA-256
Hashing Standard
Ethereum L1
Anchor Layer
02
Zero-Knowledge Proof Privacy
Sensitive PII data remains encrypted off-chain. We generate ZK-SNARK proofs (using Circom) to validate data integrity and compliance rules without exposing the underlying information, meeting GDPR and CCPA requirements.
ZK-SNARKs
Privacy Tech
GDPR Compliant
Data Handling
03
Regulator-Friendly Query Layer
Provide authorized auditors and regulators with a secure, read-only portal and API to verify audit trails using transaction hashes and Merkle proofs, eliminating manual report requests and reducing compliance overhead.
REST & GraphQL
API Access
< 2 sec
Proof Verification
04
Automated Compliance Rule Engine
Pre-configured and custom smart contracts automatically enforce KYC/AML policy updates (e.g., sanction list checks), logging every rule execution immutably to demonstrate proactive compliance.
Solidity 0.8+
Smart Contracts
Real-time
Policy Enforcement
05
High-Availability Node Infrastructure
Deploy on our managed, multi-cloud infrastructure with geo-redundant archival nodes and failover systems, ensuring 24/7 access to the audit chain and proof generation services.
99.95%
Uptime SLA
Multi-Region
Deployment
06
End-to-End Audit Reporting
Generate standardized and custom compliance reports (PDF, JSON) with cryptographic signatures, providing a complete chain of custody from customer onboarding to ongoing monitoring.
FATF Travel Rule
Report Formats
Cryptographic Sig
Report Integrity
benefits
TANGIBLE ROI
Business Outcomes: From Compliance Burden to Strategic Asset
Our KYC Immutable Audit Log Chain transforms a mandatory cost center into a verifiable, automated system that accelerates growth and builds institutional trust.
01
Automated Regulatory Reporting
Generate real-time compliance reports for FINRA, SEC, and FATF Travel Rule with a single API call. Eliminate manual data aggregation and reduce reporting overhead by 80%.
80%
Reduced Overhead
Real-time
Report Generation
02
Institutional-Grade Audit Trail
Every KYC check, status update, and document verification is immutably logged on-chain. Provides a cryptographically verifiable history for internal audits and regulatory examinations.
100%
Data Integrity
Zero-trust
Verification
03
Frictionless User Onboarding
Integrate with leading KYC providers (Sumsub, Onfido) and stream verified credentials directly to the audit chain. Cut user onboarding time from days to minutes while maintaining full compliance.
< 5 min
Onboarding Time
99.9%
Uptime SLA
04
Enhanced Due Diligence & Risk Scoring
Leverage on-chain transaction history alongside traditional KYC data to build dynamic risk profiles. Proactively identify high-risk patterns and automate AML flagging.
40%
Faster Risk Assessment
Automated
AML Flagging
05
Portable KYC Credentials
Issue W3C Verifiable Credentials for approved users, enabling seamless KYC reuse across partnered platforms. Turn compliance into a user acquisition channel.
70%
Lower CAC
W3C Standard
Interoperability
06
Smart Contract-Enforced Policies
Encode jurisdictional rules and internal risk policies into executable logic. Automatically restrict non-compliant transactions at the protocol level before they occur.
100%
Policy Enforcement
Sub-second
Validation
Infrastructure Decision Matrix
Build vs. Buy: Why a Dedicated KYC Audit Chain Outperforms Legacy Logging
A detailed comparison of building a custom KYC audit trail system in-house versus implementing Chainscore's managed KYC Immutable Audit Log Chain.
| Critical Factor | Building In-House | Chainscore KYC Audit Chain |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | From $50K |
Annual Maintenance & Ops Cost | $80K - $200K | Included in SLA |
Regulatory Compliance Coverage | Your responsibility | Pre-built for FATF, AML5, GDPR |
Immutable Proof & Non-Repudiation | Custom implementation risk | Built-in with cryptographic verification |
Real-Time Monitoring & Alerts | Requires separate system build | Included with dashboard |
Smart Contract Security Audit | Additional $30K - $100K cost | Included and battle-tested |
Cross-Chain & Multi-Protocol Support | Significant integration effort | Native support for EVM, Solana, Cosmos |
Data Retention & Retrieval SLA | Manual, slow recovery | Guaranteed < 2 second query |
Team Expertise Required | Blockchain devs, security auditors, compliance lawyers | Single point of contact |
how-we-deliver
STRUCTURED, PREDICTABLE, SECURE
Our Delivery Process: From Specification to Production Audit Chain
A transparent, step-by-step methodology designed to deliver a production-ready, secure, and compliant KYC audit log chain with zero surprises. We guarantee specific outcomes at each phase.
01
Phase 1: Specification & Architecture
We define the exact data schema, compliance rules, and on-chain/off-chain architecture. Deliverables include a technical specification document and a detailed system diagram.
Client Value: Clear scope, defined requirements, and a shared technical blueprint to prevent misalignment.
1-2 weeks
Typical Duration
100%
Scope Locked
02
Phase 2: Smart Contract Development
Our engineers build the core immutable ledger using Solidity (0.8+) with OpenZeppelin security patterns. Includes gas-optimized data anchoring and role-based access control.
Client Value: A secure, efficient, and upgradeable foundation for your audit trail, built to enterprise standards.
3-4 weeks
Development Time
0 Critical
Audit Findings Target
03
Phase 3: Security Audit & Penetration Testing
The entire system undergoes a rigorous audit by our in-house security team, focusing on logic flaws, access control, and data integrity. Includes a formal audit report.
Client Value: Mitigate financial and reputational risk with a verified, battle-tested system before mainnet deployment.
2 weeks
Audit Cycle
Full Report
Deliverable
04
Phase 4: Integration & Staging Deployment
We deploy the audit chain to a testnet/staging environment and integrate it with your existing KYC workflow via our provided API clients and webhook listeners.
Client Value: A fully functional, integrated system in a safe environment for your team to test and validate end-to-end.
1-2 weeks
Integration Window
API + SDK
Client Tools
05
Phase 5: Production Deployment & Monitoring
Managed mainnet deployment with multi-signature wallet controls. We establish 24/7 monitoring, alerting, and provide a 99.9% uptime SLA for the on-chain component.
Client Value: A live, reliable system with operational support and performance guarantees from day one.
99.9%
Uptime SLA
24/7
Monitoring
06
Phase 6: Ongoing Support & Compliance Updates
We provide technical support, handle protocol upgrades, and update the system to adapt to new regulatory requirements (e.g., Travel Rule, MiCA).
Client Value: Future-proof your compliance infrastructure without diverting your core engineering resources.
Guaranteed
Regulatory Updates
Priority SLA
Support Response
Technical & Commercial Details
Frequently Asked Questions on KYC Audit Log Chains
Get clear answers on implementation, security, and compliance for immutable KYC audit logs. Based on our experience deploying for regulated FinTechs and crypto exchanges.
A standard deployment on a private EVM chain or a dedicated Layer 2 (like Polygon Supernets) takes 2-4 weeks from kickoff to production. This includes smart contract development, integration with your existing KYC provider, and a full security audit. Complex multi-jurisdictional setups with custom compliance rules may extend to 6-8 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