feat: update

src/SUMMARY.md

@@ -6,6 +6,7 @@
   - [Jungo DAO](intro/jungo-dao.md)
   - [Protocol](intro/protocol.md)
   - [Use Cases](intro/use-cases.md)
+    - [Big Data Layer](intro/use-cases/big-data-layer.md)
 
 # General Guide
 

src/intro/use-cases.md

@@ -1,7 +1,7 @@
 # Use Cases
 
-- **AI & Big Data Layer for Blockchains:**
-  - RPC Providers
+- [**AI & Big Data Layer for Blockchains:**](./use-cases/big-data-layer.md)
+  - P2P & Decentralized RPCs
   - Indexing Protocols 
   - Lambda and Serverless Services
   - AI x Crypto Integration

src/intro/use-cases/big-data-layer.md

@@ -0,0 +1,67 @@
+# Big Data Layer for Blockchains
+
+## Introduction
+
+Jungo Data3 is a public big data layer that makes blockchain and Web3 data accessible, 
+searchable, and decentralized. By leveraging a network of distributed nodes, 
+it indexes and analyzes blockchain data, providing a scalable and open resource for 
+DApps and blockchain clients. This enables developers and users to efficiently query, retrieve
+and analyze blockchain data, driving Web3 growth.
+
+## Challenges in Blockchain Data Accessibility
+
+Blockchains are excellent for building secure and immutable transactional databases and 
+DApps but face big data accessibility issues:
+
+- **Centralized RPCs** – Blockchain gateways lack decentralization, affecting reliability and 
+  accessibility.
+- **Lack of Searchability** – Blockchain data isn’t inherently searchable, making DApps rely on 
+  costly custom indexing solutions.
+- **Trustless Data Retrieval** – Fetching specific data from blockchains for DApps and 
+  mini clients is not trustless.
+- **Limited Indexing Protocols** – Existing solutions are single-chain, lack real-world 
+  data integration, and require significant development effort.
+
+Ethereum and blockchains were envisioned as decentralized computers, but currently, 
+they function more as decentralized storage. A big data layer that makes 
+blockchain data searchable and easily accessible is still missing in Web3.
+
+## Jungo Data3: The Solution
+
+Jungo Data3 provides a public and decentralized solution by operating as a subnet of 
+Jungo Network, where nodes collaborate to deliver big data services for blockchains. 
+This includes:
+
+- P2P & Decentralized RPCs
+- General Indexing Protocols
+- Data Pipelines & Web3 Lambda Services
+
+Jungo Data3 eliminates the need for DApps to build expensive data infrastructure, 
+offering a cost-effective, scalable, and decentralized big data layer.
+
+
+## Jungo Data3 Architecture & Services
+
+Jungo Network’s base layer provides essential infrastructure, including distributed 
+databases, communication channels, job queues, and federated big data capabilities. 
+Jungo Data3 runs different types of nodes that collaborate to provide a robust 
+blockchain big data layer:
+
+- RPC Nodes – Provide P2P and decentralized RPC services, eliminating 
+  single points of failure in blockchain RPCs.
+- Blockchain Indexer Nodes – Extract data from RPC nodes and index blockchain transactions, 
+  smart contract events, and more, making them searchable.
+- DApp Indexer Nodes – Allow projects to build and query custom databases tailored to 
+  their DApp and protocol needs.
+- Multichain Indexer Nodes – Enable multichain DApps to aggregate and analyze data from 
+  multiple blockchains.
+- Web3 Lambda Services & Pipelines – Combine on-chain and real-world data, allowing DApps to 
+  build custom databases and microservices without needing separate infrastructure.
+
+## Conclusion
+
+The Web3 ecosystem and every blockchain deserve to have a general, reliable big data layer to 
+improve blockchain data accessibility. Jungo Data3 aims to simplify DApp development, 
+reduce infrastructure costs, and bring Web3-based solutions to replace 
+traditional Web2 big data markets. By decentralizing big data services, Jungo Data3 makes 
+blockchain data truly open, accessible, and scalable for everyone.