> For the complete documentation index, see [llms.txt](https://hub.bsvblockchain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hub.bsvblockchain.org/higher-learning/bsv-academy/bsv-network-topology/essentials-of-bsvs-mandala-network-architecture/takeaways.md).

# Takeaways

1. The **BSV Blockchain Mandala upgrade** redefines blockchain architecture, introducing a **microservices-based architecture** that enhances **availability**, **scalability**, and **operational efficiency** while maintaining the original Bitcoin protocol.
2. The Mandala architecture consists of three layers: **Layer 1 (Teranode)** for high transaction processing, **Layer 2 (Overlay Services)** for specialized business logic, and **Layer 3 (SPV Wallets)** for peer-to-peer transactions.
3. Unlike traditional **layer-two solutions**, the Mandala upgrade minimizes the **double-spend problem** by ensuring most activities occur within **Layer 1**, preserving the integrity of the blockchain.
4. The upgrade introduces a **P2P2M model**, enhancing transaction handling and scalability by clarifying roles within the network, thus improving efficiency and reducing unnecessary data retrieval.


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