We architect and deploy custom smart contracts for tokens, DeFi protocols, and dApps. Our process ensures security-first development with formal verification and multi-audit cycles before mainnet deployment.
LABS
Services
ZK-Rollup Privacy Layer for Bitcoin
We design and develop custom zero-knowledge proof-based sidechains or drivechains to enable private, scalable Bitcoin transactions with secure settlement back to the main chain.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists.
Reduce your time-to-market with battle-tested patterns and a 2-week MVP delivery guarantee for standard token contracts.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - DeFi & DAOs: Automated market makers, staking pools, governance modules.
- Security: Built with
Solidity 0.8+,OpenZeppelinlibraries, andSlither/MythXanalysis. - Full Lifecycle: Development, testing, deployment, and upgrade management via
Proxypatterns.
key-features-cards
ZK-ROLLUP PRIVACY LAYER FOR BITCOIN
Core Technical Capabilities We Deliver
We architect and deploy production-ready ZK-Rollup layers that bring scalable, private smart contract functionality to the Bitcoin ecosystem. Our solutions are built for enterprises and high-throughput applications.
01
Custom ZK-Circuit Design
We design and implement zero-knowledge circuits tailored for Bitcoin's UTXO model, enabling private transactions and confidential smart contract logic. Our circuits are optimized for proof generation speed and verification cost.
O(n log n)
Proof Complexity
ZK-SNARKs/STARKs
Proof Systems
02
Bitcoin L2 Bridge Infrastructure
Secure, non-custodial bridge contracts and relayers for moving assets between Bitcoin L1 and your ZK-Rollup. We implement multi-signature schemes and fraud proofs to ensure asset safety.
1-of-N
Trust Model
< 10 min
Withdrawal Finality
03
Rollup Sequencer & Prover Network
We deploy and manage high-availability sequencer nodes for transaction ordering and a distributed prover network for generating ZK proofs, ensuring low latency and censorship resistance.
99.9%
Sequencer Uptime SLA
< 2 sec
Block Time
04
Data Availability Layer
Implementation of secure data availability solutions, including Bitcoin transaction embedding and optional external DA layers, to guarantee data retrievability for rollup state reconstruction.
Bitcoin L1
Primary DA
EigenDA/Celestia
Optional DA
05
Smart Contract Framework for Bitcoin
Development of a Bitcoin-native smart contract environment (e.g., using sCrypt or similar) that integrates seamlessly with the ZK-Rollup, enabling complex DeFi and application logic.
sCrypt
Primary Language
EVM-Compatible
Optional Layer
06
Security & Formal Verification
End-to-end security audit of the ZK-Rollup stack, from circuit logic and bridge contracts to sequencer code. We employ formal verification methods for critical components.
Trail of Bits
Audit Partners
Formal Verification
Key Components
benefits
TANGIBLE RESULTS
Business Outcomes for Your Project
Our ZK-Rollup Privacy Layer for Bitcoin delivers measurable advantages, from accelerated development to enhanced security and market differentiation.
01
Accelerated Time-to-Market
Deploy a production-ready, privacy-enhanced Bitcoin L2 in under 6 weeks. We provide a complete development framework, from custom circuit design to full-stack integration, eliminating months of R&D.
< 6 weeks
To Production
90%
R&D Time Saved
02
Enterprise-Grade Security & Auditability
Build on a foundation of verified security. Our ZK circuits and smart contracts undergo rigorous audits by firms like Trail of Bits and Quantstamp, with formal verification for critical logic.
100%
Audit Coverage
Zero
Critical Bugs Shipped
03
Substantial Cost Reduction
Drastically lower operational costs. Our optimized ZK-Rollup architecture reduces on-chain settlement fees by over 95% compared to native Bitcoin transactions, enabling micro-transactions at scale.
> 95%
Fee Reduction
< $0.01
Avg. Tx Cost
05
Unmatched Transaction Privacy
Enable confidential DeFi and payments on Bitcoin. Our ZK proofs shield sender, receiver, and amount data on-chain, providing mathematically guaranteed privacy for your users' financial activity.
ZK-SNARKs
Proof System
Zero
On-Chain Data Leakage
Structured Implementation Roadmap
ZK-Rollup Privacy Layer for Bitcoin: Development & Delivery
A phased, milestone-driven approach to deliver a production-ready ZK-Rollup privacy layer, ensuring technical rigor, security, and predictable timelines for your Bitcoin L2 project.
| Phase & Deliverables | Timeline | Key Activities | Outcome |
|---|---|---|---|
Phase 1: Architecture & Design | 2-3 Weeks | Requirement analysis, system architecture, ZK-circuit design, tech stack finalization | Technical specification document, architecture diagrams, finalized project plan |
Phase 2: Core Protocol Development | 6-8 Weeks | ZK-SNARK/STARK circuit implementation, state transition logic, on-chain verifier contract (Bitcoin script/Scriptless Scripts) | Functional core protocol, verifier contract, internal test suite |
Phase 3: Node & Client Implementation | 4-6 Weeks | Sequencer node, prover node, light client SDK, RPC/API layer development | Operational node software, developer SDK, API documentation |
Phase 4: Security & Audit | 3-4 Weeks | Internal security review, formal verification of circuits, engagement with external audit firm | Audit report, vulnerability remediation, formal verification certificate |
Phase 5: Testnet Deployment & Integration | 2-3 Weeks | Deploy to Bitcoin testnet (Signet), stress testing, wallet & explorer integration, developer onboarding | Live testnet environment, integration guides, performance benchmarks |
Phase 6: Mainnet Launch & Support | 1-2 Weeks | Mainnet deployment, monitoring setup, incident response plan activation, team training | Production-ready ZK-Rollup live on Bitcoin mainnet, 24/7 monitoring dashboard |
Ongoing: Maintenance & Upgrades | Optional SLA | Protocol upgrades, performance optimization, security patches, dedicated technical support | 99.9% uptime SLA, guaranteed response times, continuous improvement |
how-we-deliver
PROVEN PROCESS
Our Development Methodology
Our systematic approach to building ZK-Rollup privacy layers ensures security, speed, and seamless integration for Bitcoin-native applications.
01
Zero-Knowledge Circuit Design
We design and implement custom zk-SNARK circuits using Circom and Halo2, optimized for Bitcoin's UTXO model to enable private transactions and confidential assets.
Circom 2.1+
Framework
Halo2
Proving System
02
Bitcoin Bridge Architecture
Secure, non-custodial bridge development for moving BTC into the ZK-Rollup layer, utilizing multi-signature schemes and fraud proofs for maximum asset safety.
3/5 Multi-sig
Security Model
Non-Custodial
Asset Control
03
Rollup Node & Prover Infrastructure
Deployment of high-performance sequencer and prover nodes with horizontal scaling, ensuring sub-2 second block times and cost-effective proof generation.
< 2 sec
Block Time
99.9% SLA
Uptime
04
Smart Contract Integration Layer
Development of Solidity/Vyper smart contracts for the L2 execution environment, enabling DeFi, NFTs, and complex logic with Bitcoin settlement.
Solidity 0.8+
Language
OpenZeppelin
Libraries
05
End-to-End Security Audit
Comprehensive security review covering cryptographic circuits, bridge logic, and smart contracts, with formal verification for critical components.
Trail of Bits
Audit Partner
Formal Verification
Methodology
06
Production Deployment & Monitoring
Managed rollout with canary deployments, real-time dashboards for sequencer health, proof latency, and bridge reserves, plus 24/7 incident response.
4 weeks
Avg. Timeline
24/7 SRE
Support
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy audit-ready smart contracts on EVM and Solana that power your core business logic. Our engineers specialize in Solidity 0.8+, Rust, and Anchor, implementing battle-tested patterns from OpenZeppelin and Sealevel.
- Full Lifecycle Ownership: From initial design and development to deployment, verification, and on-chain monitoring.
- Security-First Approach: Every contract undergoes internal review against common vulnerabilities before external audit.
- Gas Optimization: We write efficient code to minimize transaction costs for your users.
Deliver a secure, functional MVP in as little as 2-4 weeks, with a clear path to mainnet launch.
ZK-Rollup Privacy for Bitcoin
Frequently Asked Questions
Get clear answers on implementation, security, and integration for your Bitcoin privacy layer.
A standard deployment for a Bitcoin ZK-Rollup privacy layer takes 4-8 weeks from kickoff to mainnet. This includes architecture design, smart contract development, zero-knowledge circuit implementation, and a full security audit. For integrations with existing wallets or dApps, add 1-2 weeks. We provide a detailed project plan within the first week of engagement.
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