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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Privacy-Preserving Cross-Border Transaction Development

We build enterprise-grade payment corridors using advanced cryptography (ZK-SNARKs, confidential assets) to conceal transaction amounts and counterparties while maintaining full auditability for regulatory compliance.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, gas-optimized smart contracts built by Web3 specialists to power your product.

We architect and deploy production-ready smart contracts that are secure by design. Our process includes formal verification, comprehensive unit testing, and integration with OpenZeppelin libraries to mitigate risks before mainnet deployment.

Deliver a secure, auditable, and efficient on-chain foundation in 2-4 weeks.

  • Custom Logic: ERC-20, ERC-721, ERC-1155, DeFi protocols, DAOs, and bespoke business logic.
  • Gas Optimization: Code reviewed for efficiency, reducing user transaction costs by up to 40%.
  • Full Audit Trail: Complete documentation and Hardhat/Foundry test suites for seamless team handoff.
key-features-cards
BUILDING THE RAILWAY FOR PRIVATE CROSS-BORDER VALUE

Core Technical Capabilities

We architect and implement the foundational infrastructure for compliant, private, and efficient global transactions. Our engineering team delivers production-ready systems, not just proofs-of-concept.

benefits
MEASURABLE RESULTS

Business Outcomes for Your Treasury

Our privacy-preserving cross-border transaction solutions deliver concrete financial and operational advantages, moving beyond technical features to drive direct treasury value.

01

Reduced Transaction Costs

Eliminate intermediary banking fees and FX spreads. Our direct settlement architecture on optimized L2s like Arbitrum or Polygon zkEVM reduces cross-border payment costs by 60-80% compared to traditional corridors.

60-80%
Cost Reduction
< $0.01
Avg. Tx Fee
02

Enhanced Regulatory Compliance

Deploy with built-in compliance tooling. Our privacy modules integrate selective disclosure for audits and travel rule (FATF Rule 16) compliance, ensuring you meet global standards without sacrificing user privacy.

FATF Rule 16
Compliance Ready
ZK-Proofs
Audit Trail
03

Faster Settlement & Liquidity

Achieve finality in minutes, not days. By leveraging zero-knowledge proofs for privacy on high-throughput chains, we enable near-instant settlement, freeing up capital and improving treasury efficiency.

< 5 min
Settlement Time
24/7/365
Operational Uptime
04

Mitigated Counterparty & Sanctions Risk

Minimize exposure with on-chain, programmable compliance. Our solutions allow for real-time sanctions screening and customizable risk policies directly embedded in the transaction logic, reducing operational risk.

Real-time
Screening
Programmable
Risk Policies
From MVP to Global Scale

Phased Development Approach

Our structured delivery model for privacy-preserving cross-border transaction systems, designed to de-risk development and accelerate time-to-market.

Phase & DeliverablesDiscovery & ArchitectureCore Protocol DevelopmentIntegration & Scaling

Duration

2-3 weeks

6-10 weeks

4-8 weeks

Key Activities

Requirements AnalysisTech Stack SelectionArchitecture Design
Zero-Knowledge Circuit DevSmart Contract SuiteInitial Security Audit
Fiat On/Off-Ramp APIsMulti-Chain DeploymentPerformance Optimization

Privacy Technology

ZK-SNARKs vs. ZK-STARKs Analysis

Custom ZK Circuit Implementation

Optimized Proof Generation & Verification

Compliance Features

Regulatory Landscape Review

Modular Sanctions Screening

Audit Trail & Reporting Module

Infrastructure

Node & RPC Provider Selection

Deploy Testnet Environment

Production Deployment99.9% Uptime SLAMulti-Region Redundancy

Team Involvement

Solution ArchitectProject Manager
ZK EngineerSmart Contract DevSecurity Auditor
DevOps EngineerIntegration Specialist

Client Deliverables

Technical Specification DocProject Roadmap
Audited Smart ContractsTestnet Demo
Production-Ready SystemIntegration Documentation

Estimated Investment

$15K - $25K

$80K - $150K

$50K - $100K+

how-we-deliver
A PROVEN FRAMEWORK

Our Development & Delivery Process

We deliver production-ready, privacy-preserving transaction systems using a structured, milestone-driven approach that de-risks development and accelerates your time-to-market.

01

Discovery & Architecture Design

We conduct a deep technical analysis of your cross-border flow requirements to architect a solution using optimal privacy primitives (ZK-SNARKs, MPC, confidential assets). This phase establishes clear technical specifications, security parameters, and a detailed project roadmap.

1-2 weeks
Duration
100%
Specification Lock
02

Smart Contract & Protocol Development

Our engineers build and test the core privacy-preserving logic and settlement contracts. We use battle-tested libraries (e.g., Circom, Noir) and follow security-first development practices, including internal audits and formal verification where applicable.

Solidity 0.8+
Core Language
OpenZeppelin
Security Base
03

Integration & Testing Suite

We develop a comprehensive testing environment simulating mainnet conditions, including privacy leakage analysis, gas optimization benchmarks, and integration with your existing FinTech stack (APIs, custodial services, compliance engines).

> 95%
Code Coverage
Multi-Chain
Test Environment
04

Security Audit & Final Review

The completed system undergoes a rigorous external audit by a leading Web3 security firm. We manage the entire audit process, implement all critical recommendations, and provide you with the final audit report and verification certificates.

External Audit
Security Step
Remediation
Guaranteed
05

Staged Deployment & Mainnet Launch

We execute a phased deployment: starting with a controlled testnet release, followed by a limited mainnet pilot with real funds, and culminating in a full production launch. We provide 24/7 monitoring and support during the critical go-live period.

Phased Rollout
Deployment Strategy
24/7 Support
Launch Coverage
06

Documentation & Knowledge Transfer

We deliver complete technical documentation, operational runbooks, and admin dashboards. Our team conducts training sessions for your engineering and operations staff to ensure full ownership and seamless long-term maintenance.

Full Docs
Deliverable
Live Training
Knowledge Transfer
security-compliance
CORE INFRASTRUCTURE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy custom smart contracts that form the foundation of your protocol. Our development process ensures security-first design, gas optimization, and audit readiness from day one.

  • Token Standards: ERC-20, ERC-721, ERC-1155, and custom implementations.
  • DeFi Primitives: Automated market makers, lending pools, staking mechanisms, and yield strategies.
  • Governance Systems: DAO tooling, multi-sig wallets, and on-chain voting modules.
  • Security: Built with OpenZeppelin libraries and hardened through internal review cycles.

Deliver a battle-tested, mainnet-ready contract suite in 4-6 weeks, complete with comprehensive documentation and deployment scripts.

Privacy-Preserving Cross-Border Transactions

Frequently Asked Questions

Get clear answers on our development process, security, and outcomes for building compliant, private financial rails.

We deliver a production-ready MVP in 4-8 weeks for standard implementations. The timeline varies based on complexity: a basic private payment corridor with two fiat on/off-ramps takes 4-5 weeks, while a multi-currency system with advanced compliance tooling (like zero-knowledge proofs for KYC) can take 6-8 weeks. We provide a detailed project plan with milestones after the initial discovery phase.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team