> 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/introduction-to-blockchain-technology/the-fundamentals-of-blockchain-and-web-3-technology/file-integrity-and-tracking-proof-of-concept.md).

# File Integrity & Tracking (Proof of Concept)

Ensuring the **integrity and authenticity** of software applications and data over time is critical for **security, auditability, and trust**.

Current solutions often lack **verifiable, immutable proof of existence** and **tamper evidence** in a scalable and transparent manner.

## **Time Anchor - Solution Overview**

The [**Time Anchor** **proof of concept (PoC)**](https://hub.bsvblockchain.org/demos-and-onboardings/demo-solutions/demos/time-anchor) leverages the **BSV blockchain’s scalability and security** to anchor file checksums and metadata immutably on-chain.

It enhances traditional checksum verification by integrating **advanced Overlay Services** that combine:

* **UHRP (Universal Hash Resolution Protocol)**
* **BRC-26 token protocols**
* **Storage management tools** for continuous file integrity tracking

Using **WalletClient** from the **@bsv/sdk** and **BSV Desktop** allows seamless blockchain transaction management and automation for these anchored records.

***

## **Key Benefits**

* **Tamper-Evident Records:** Immutable blockchain timestamps ensure file integrity and application authenticity.
* **Scalable Verification:** BSV’s high throughput supports frequent anchoring and real-time updates without congestion.
* **Open Source Tools:** Built using transparent, community-driven tools such as *StorageUploader*, *WalletClient*, and *Overlay Services*.
* **Extensible Metadata:** Compatible with advanced protocols (*UHRP*, *BRC-26*) to enable rich file tracking, auditability, and governance.

***

### **Learn More**

[Read Business Documentation](https://hub.bsvblockchain.org/demos-and-onboardings/demo-solutions/demos/time-anchor/business-time-anchor)


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