---
title: "How can blocks be identified?"  
description: "How can blocks be identified?"  
author: "Sandra Emily"  
published: 2022-05-19  
canonical: https://answers.mindstick.com/qa/97494/how-can-blocks-be-identified  
category: "troubleshooting"  
tags: ["troubleshooting", "blockchain"]  
reading_time: 1 minute  

---

# How can blocks be identified?

How can blocks be identified?

## Answers

### Answer by Hitesh Vohra

- Every block on a blockchain has its own unique identity. The hash value is used to create a unique identifier. This means that no two blocks will have the same identification.
- The block height and block header hash are **used to identify blocks.**
- A cryptographic hash, or digital signature, is used to identify a block. The block header is hashed twice with the SHA256 method to get this.
- A container data structure is referred to as a block. A block in the Bitcoin ecosystem typically comprises more than 500 transactions. The average block size appears to be 1MB (source). A block in Bitcoin Cash (a hard split from the Bitcoin network) can be up to 8MB in size. This increases the number of transactions executed per second.

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**Read More: [What are the limitations of blockchain?](https://answers.mindstick.com/qa/97497/what-are-the-limitations-of-blockchain)**


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Original Source: https://answers.mindstick.com/qa/97494/how-can-blocks-be-identified

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