QMDB Core Integration for the proof storage engine within Substrate

applications/QF_QMDB-substrate-part1.md

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+# Substrate - QMDB Core Integration for Substrate Storage Enhancement
+
+- **Team Name:** Quantum Fusion
+- **Payment Details:** 
+  - **DOT:** 5DNqyUcanQhL5Fy2TpzDAc8Ac6DcYt8sjpLFBgv7kuWmaLXc
+  - **USDC:** 12K97oseeBxoWnyYRU3DJkxKTiDGFBh1pK4jLyuUJzYHkqdD
+  - Tax number: PT312117116
+- **Level:** 2
+
+## Project Overview :page_facing_up:
+
+### Overview
+
+We are focusing on QMDB integration as the proof storage engine within Substrate   (https://github.com/QuantumFusion-network/spec/issues/16). 
+This is the first step of our blockchain state storage research and optimisation  -  https://github.com/QuantumFusion-network/spec/issues/13
+
+### Project Details
+
+Technology stack:
+- RUST language for QMDB integration with Substrate
+- DevOps tools for deployment and monitoring
+
+Documentation:
+- Core components and architecture documentation to be developed
+- Integration specifications and API documentation
+- Performance benchmarking methodology
+
+Research and PoC:
+- https://github.com/QuantumFusion-network/spec/issues/16
+- https://qfnetwork.xyz/litepaper
+
+What this project will not provide:
+- Full prefix search functionality
+- Production-ready indexing solution
+- Advanced iterator implementation
+
+### Ecosystem Fit
+
+- **Target Audience:** All parachains for this iteration. We are avoiding the problem of migration as it won't be helpful for Polkadot L1 at this moment.
+- **Project Fit:** Polkadot’s focus on modular and scalable blockchain infrastructure makes it an ideal candidate for advanced storage optimisations like QMDB integration. By enhancing storage efficiency, this proposal aligns with Polkadot’s long-term vision of high-performance, decentralized systems.
+- **Similar Projects:** 
+
+## Team :busts_in_silhouette:
+
+### Team members
+- Team Lead: Vas Soshnikov
+- Team Member: Andrew Orlov
+
+### Contact
+- **Contact Name:** Vas Soshnikov
+- **Contact Email:** [email protected]
+- **Website:** https://qfnetwork.xyz
+
+### Legal Structure
+- **Registered Address:** Travessa Eugenia Brandao de Melo 273A, Santa Cruz, Madeira, Portugal
+- **Registered Legal Entity:** Private Entrepreneur Sergei Cherepanov, PT312117116
+
+### Team's experience
+Previous Polkadot grants:
+- https://github.com/kaonone/polkahub-monorepo
+- https://substrate.io/ecosystem/projects/polkahub/
+
+### Team Code Repos
+- https://github.com/QuantumFusion-network
+- https://github.com/andor0
+- https://github.com/dedok
+
+### Team LinkedIn Profiles
+- https://www.linkedin.com/in/andrei-orlov-7263a482/
+- https://www.linkedin.com/in/vas-soshnikov-76722783/
+
+## Development Status :open_book:
+
+Currently in initial development phase with:
+- Project planning completed
+- Initial research conducted
+- Basic integration testing started
+
+## Development Roadmap :nut_and_bolt:
+
+### Overview
+
+- **Total Estimated Duration:** 7 weeks
+- **Full-Time Equivalent (FTE):** 2
+- **Total Costs:** 30,000 USD
+- **DOT %:** 50%
+- **USDC %:** 50%
+
+### Milestone 1 — QMDB Core Integration
+
+- **Estimated Duration:** 3 weeks
+- **FTE:** 2
+- **Costs:** 12,000 USD
+
+| Number | Deliverable | Specification |
+| ------ | ----------- | ------------- |
+| **0a.** | License | Apache 2.0 |
+| **0b.** | Documentation | Comprehensive inline documentation and integration tutorial |
+| **0c.** | Testing Guide | Unit tests coverage with detailed testing guide |
+| **0d.** | Docker | Dockerfile for testing all milestone functionality |
+| 1. | QMDB Storage Traits | Implementation of basic QMDB storage traits without iterators and prefixes |
+| 2. | Key Operations | Implementation of key-based search/insert/delete operations |
+| 3. | API Compatibility | Substrate storage API compatibility layer |
+| 4. | Prototype | Working prototype integrated with Substrate |
+
+### Milestone 2 — Storage Enhancement and Testing
+
+- **Estimated Duration:** 2 weeks
+- **FTE:** 2
+- **Costs:** 9,000 USD
+
+| Number | Deliverable | Specification |
+| ------ | ----------- | ------------- |
+| **0a.** | License | Apache 2.0 |
+| **0b.** | Documentation | Updated documentation with deployment guidelines |
+| **0c.** | Testing Guide | Extended testing coverage |
+| **0d.** | Docker | Updated Docker configurations |
+| 1. | Storage Indexing | Development of storage indexing mechanism (in-memory B-Tree or sorted sparse list) |
+| 2. | Performance Testing | Initial benchmarking implementation |
+| 3. | Integration Tests | Comprehensive integration test suite |
+
+### Milestone 3 — System Testing
+
+- **Estimated Duration:** 1 week
+- **FTE:** 2
+- **Costs:** 4,500 USD
+
+| Number | Deliverable | Specification |
+| ------ | ----------- | ------------- |
+| **0a.** | License | Apache 2.0 |
+| **0b.** | Documentation | Testing documentation and guides |
+| **0c.** | Testing Guide | System test specifications |
+| **0d.** | Docker | Testing environment in Docker |
+| 1. | Full System Testing | Complete Substrate test suite execution |
+| 2. | Performance Validation | Comprehensive benchmarking results |
+| 3. | Test Reports | Detailed testing reports and analysis |
+
+### Milestone 4 — Deployment and Optimization
+
+- **Estimated Duration:** 1 week
+- **FTE:** 2
+- **Costs:** 4,500 USD
+
+| Number | Deliverable | Specification |
+| ------ | ----------- | ------------- |
+| **0a.** | License | Apache 2.0 |
+| **0b.** | Documentation | Final documentation and deployment guides |
+| **0c.** | Testing Guide | Production deployment guide |
+| **0d.** | Docker | Production-ready Docker configuration |
+| **0e.** | Article | Technical article about QMDB integration benefits |
+| 1. | DevNet Deployment | Implementation deployed on QF DevNet |
+| 2. | Monitoring Setup | Integration of monitoring and alerting system |
+| 3. | Performance Optimization | Final optimization and benchmarking
+
+## Future Plans
+
+Our long-term strategy is outlined in https://qfnetwork.xyz/litepaper, focusing on:
+- Continuous development and maintenance
+- Integration with the broader Polkadot ecosystem
+- Enhancement of QMDB capabilities
+
+## Additional Information :heavy_plus_sign:
+
+Previous grants experience includes:
+
+1. PolkaHub Project:
+   - https://github.com/kaonone/polkahub-monorepo
+   - https://substrate.io/ecosystem/projects/polkahub/
+   - Successfully completed and deployed
+
+2. Previous contributions to Polkadot ecosystem:
+   - Implementation of deployment tools
+   - Development of substrate modules
+   - Infrastructure optimization projects
+
+Our team has demonstrated strong technical expertise and successful delivery through these previous grants, showing our capability to execute complex technical projects within the Polkadot ecosystem.
+