> 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/spv-wallets-unlocking-simplified-payment-verification-for-secure-transactions/spv-wallet-in-practice.md).
# SPV Wallet in Practice
The [**Mandala upgrade**](https://bsvblockchain.360learning.com/paths/690223c88bdc5a0224797554/home) introduces significant advancements in the BSV blockchain, including the SPV Wallet and Overlay Networks. This upgrade aims to create a new network topology centered around the Teranode client, capable of processing upwards of **1 million transactions per second**. The shift from a traditional peer-to-transaction-processor-to-peer model (P2M2P) to a **peer-to-peer-to-miner model (P2P2M)** is fundamental in achieving unbounded scalability for node clients.
The SPV Wallet serves as the **first reference implementation of this new P2P SPV paradigm**, allowing users to engage directly with the blockchain by managing only the aspects relevant to them—specifically, their stored unspent transaction outputs (UTXOs) and their Merkle paths. This streamlined approach significantly **reduces the bandwidth and resource requirements** traditionally associated with blockchain interactions.
Thanks to the Mandala upgrade, there are **opportunities for developing overlay services that utilize the SPV Wallet**, creating custom business solutions and offerings that leverage UTXOs and Merkle proofs for a wide range of data and monetary operations. With transaction fees reduced to about one hundredth of a cent per standard transaction, the upgrade opens the door to numerous novel use cases that were previously unfeasible due to cost constraints.
By allowing direct transactions with easy verification, SPV, particularly through the SPV wallet's reference implementation, **enhances the efficiency** of the BSV blockchain network. It **eliminates the need for intermediaries** in every transaction, pushing transaction validation to the edges of the network to keep it fast, efficient, and scalable. This approach ensures that BSV remains accessible and scalable, ready to meet the demands of the digital economy.
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