We deliver custom blockchains, L2 solutions, and dApps from concept to mainnet. Our full-cycle development covers smart contract architecture, consensus mechanisms, and node infrastructure for enterprise-grade performance and security.
LABS
Services
Cross-Chain Smart Contract Data Mirroring
Synchronized, decentralized backup of contract state and events across multiple blockchains, creating redundant, interoperable data archives for mission-critical dApps.
Chainscore © 2026
overview
BUILD
Custom Blockchain Development
We architect and build production-grade blockchain networks and applications tailored to your business logic.
- Protocol Development: Build bespoke
EVMorSubstrate-based chains with custom governance and tokenomics. - Layer 2 & Scaling: Implement
zk-Rollups,Optimistic Rollups, orValidiumsto achieve >2,000 TPS with minimal fees. - dApp Suites: Develop full-stack applications with React/Next.js frontends and secure, audited smart contract backends.
- Node & Validator Ops: Deploy and manage high-availability
RPC nodes,validators, andindexerswith 99.9% uptime SLAs.
We focus on delivering a production-ready MVP in 6-8 weeks, not just prototypes. Our battle-tested development lifecycle includes formal verification and third-party audits from firms like CertiK or Quantstamp.
key-features-cards
ARCHITECTURE
How Our Cross-Chain Mirroring Works
A deterministic, event-driven pipeline that mirrors your critical on-chain data across networks with enterprise-grade reliability and sub-second latency.
01
Source Chain Event Capture
We deploy lightweight, gas-optimized listener contracts on your source chain (Ethereum, Solana, etc.) to capture and validate state changes or custom events in real-time.
< 1 sec
Event Detection
100%
Data Integrity
02
Secure Off-Chain Relayer
Our decentralized network of attestation nodes cryptographically signs and relays event proofs to the target chain, ensuring data authenticity and censorship resistance.
5/9
Quorum Signing
Zero Trust
Security Model
03
Target Chain State Update
Verified data is written to your destination contract via a permissioned updater, maintaining strict consistency with the source chain's logic and authorization rules.
Sub-Second
Finality
Gas-Optimized
Execution
04
Health Monitoring & SLAs
24/7 monitoring, automated failover, and detailed analytics dashboards provide full visibility into sync status, latency, and uptime, backed by a 99.9% SLA.
99.9%
Uptime SLA
< 2 weeks
Deployment Time
benefits
ENTERPRISE-GRADE RELIABILITY
Business Outcomes of Decentralized Data Archival
Cross-chain data mirroring isn't just a technical feature; it's a strategic asset. Our decentralized archival service delivers measurable business advantages by ensuring your smart contract data is permanently accessible, verifiable, and resilient.
01
Immutable Audit Trails
Create permanent, tamper-proof records of all cross-chain transactions and contract states. Essential for regulatory compliance, dispute resolution, and investor transparency in DeFi and institutional applications.
100%
Data Integrity
Permanent
Retention
02
Eliminate Single Points of Failure
Decouple your application's availability from any single blockchain's uptime. Our distributed archival network ensures your dApp's historical data remains accessible even during chain halts or congestion.
99.9%
Data Availability SLA
Multi-Cloud
Redundancy
03
Accelerate Time-to-Insight
Enable real-time analytics and reporting by providing fast, indexed access to mirrored data across Ethereum, Polygon, Arbitrum, and other EVM chains. Build dashboards and alerts without overloading RPC nodes.
< 1 sec
Query Latency
Real-time
Indexing
04
Future-Proof Protocol Upgrades
Safeguard against data loss during hard forks, chain migrations, or deprecations. Our archival solution preserves a complete historical ledger, ensuring business continuity and seamless data portability.
Zero Downtime
During Migrations
Full History
Portability
05
Reduce Infrastructure Overhead
Eliminate the cost and complexity of self-hosting archival nodes for multiple chains. Access a unified, managed service with predictable pricing, freeing your team to focus on core product development.
> 60%
Cost Reduction
Managed Service
No DevOps
Strategic Decision Analysis
Build vs. Buy: Cross-Chain Data Mirroring
Compare the total cost, risk, and resource commitment of developing a custom cross-chain data layer in-house versus partnering with Chainscore's managed service.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Initial Deployment | 6-12 months | 4-8 weeks |
Core Engineering Cost (Year 1) | $250K - $600K+ | $0 (Included) |
Security Audit & Penetration Testing | Required ($50K - $150K) | Included (Pre-Audited Templates) |
Ongoing Infrastructure & RPC Costs | Your responsibility | Bundled in service fee |
24/7 Monitoring & Alerting | Build and staff yourself | Included with 99.9% SLA |
Protocol Upgrades & Maintenance | Your team's ongoing burden | Handled by Chainscore |
Multi-Chain Support (EVM, Solana, etc.) | Per-chain development required | Pre-built, configurable adapters |
Expertise Required | Senior Blockchain Devs, DevOps, Security | Your existing product team |
Total Estimated Cost (First Year) | $300K - $750K+ | $75K - $200K |
Primary Risk Profile | High (Security flaws, delays, attrition) | Low (Managed, audited, insured) |
how-we-deliver
A PREDICTABLE PATH TO PRODUCTION
Our Delivery Process: From Audit to Automated Sync
We provide a structured, transparent engagement model designed for technical leaders. Each phase delivers concrete, auditable outputs, ensuring your cross-chain data layer is secure, scalable, and ready for mainnet.
01
1. Architecture & Smart Contract Audit
We conduct a deep technical review of your existing smart contracts and system architecture. Our team identifies security vulnerabilities, gas inefficiencies, and architectural risks specific to cross-chain state synchronization before a single line of new code is written.
Deliverable: A comprehensive audit report with prioritized findings and remediation roadmap.
100+
Security Checks
OZ Patterns
Compliance
02
2. Custom Relay & Listener Design
We design and implement the core off-chain infrastructure: secure relayers for broadcasting events and resilient listeners for capturing on-chain state. Built for multi-chain environments (EVM, Solana, Cosmos) with configurable finality guarantees and failure recovery.
Deliverable: Production-ready listener/relayer services deployed to your cloud environment.
< 2 sec
Event Detection
99.9% SLA
Relayer Uptime
03
3. State Reconciliation Engine
We build the logic engine that transforms raw blockchain events into normalized, queryable application state. This includes handling chain reorganizations, managing idempotency, and ensuring data consistency across the mirrored dataset.
Deliverable: A versioned, containerized reconciliation service with idempotent processing guarantees.
Idempotent
Processing
Sub-Second
Sync Latency
04
4. Indexed Database & API Layer
We deploy a high-performance datastore (e.g., TimescaleDB, PostgreSQL) optimized for blockchain data and build a GraphQL/REST API layer. This provides your frontend and internal services with fast, filtered access to the mirrored chain state.
Deliverable: A fully indexed database and documented API with example queries and rate limiting.
< 100ms
P95 Query Time
GraphQL
API Standard
05
5. Monitoring & Alerting Suite
We implement a full observability stack: dashboard for sync status and latency, alerts for chain halts or data drift, and logging for all cross-chain transactions. Integration with your existing tools (Datadog, PagerDuty, Slack) is standard.
Deliverable: A live monitoring dashboard and configured alerting rules for critical production issues.
24/7
Health Checks
E2E Traced
All Transactions
06
6. Handoff & Production Support
We provide complete documentation, runbooks, and knowledge transfer to your engineering team. Includes 30 days of post-deployment support to ensure a smooth transition to your internal operations, with optional ongoing SLA-based maintenance plans.
Deliverable: Technical documentation, operational runbooks, and access to our engineering team for support.
30 Days
Included Support
SLA Options
Available
Cross-Chain Data Mirroring
Frequently Asked Questions
Get clear answers on how we deliver secure, reliable smart contract state synchronization across blockchains.
Cross-Chain Data Mirroring is a service that replicates and synchronizes critical state data (like token balances, user permissions, or governance votes) between smart contracts on different blockchains. We build secure relayers and oracles that ensure your application's logic and user experience remain consistent, whether a user is on Ethereum, Polygon, Arbitrum, or other supported chains. This is essential for unified dApps, multi-chain DeFi protocols, and NFT projects.
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