• تاریخ انتشار : پنجشنبه ۲۵ بهمن ۱۴۰۳ - ۱۴:۱۱
  • کد خبر : 1437
  • چاپ خبر

Ethereum: How is the Target Hash determined?

Math Behind Ethereum Target Hash As a blockchain enthusiast, you are probably familiar with the concept of calculating the Ethereum mining target hash. However, it may seem counterintuitive that this calculation is represented using a hexadecimal value. In this article, we will look at how the target hash is determined and explore why hexadecimal values

Math Behind Ethereum Target Hash

As a blockchain enthusiast, you are probably familiar with the concept of calculating the Ethereum mining target hash. However, it may seem counterintuitive that this calculation is represented using a hexadecimal value. In this article, we will look at how the target hash is determined and explore why hexadecimal values ​​​are needed.

Background

In blockchain technology, a target hash is a mathematical function that generates a unique digital fingerprint for a block of transactions on the Ethereum network. The goal of this process is to find a hash that the network’s mining algorithms have not yet seen.

To calculate the target hash, we need to break it down into smaller components:

  • Block Header: Contains 4-32 bytes of data that contains metadata about the block.
  • Transaction List

    : A list of transactions in the block.

  • Previous Block Hash: The hash of the previous extracted block.

Calculating the Target Hash

The target hash is calculated by combining these components in a specific way:

  • First, we generate a random number (known as the
    seed).
  • Then, we iterate over each transaction in the list and calculate its contribution to the hash:
  • Each transaction is hashed using SHA-256.
  • The result is multiplied by the current seed.
  • Finally, we combine all these contributions to generate the target hash.

How ​​​a hash is calculated

Now let’s go into the hexadecimal calculation step by step:

  • Leading zeros: The leading zero in Ethereum indicates that the resulting value must be a multiple of 2^256 (the number of possible values ​​​​in SHA-256). This is necessary because the hash function uses modular arithmetic with base 2.
  • Hexadecimal conversion: Each component of the target hash is converted from hexadecimal to binary:
  • The block header and transaction list are simply concatenated as strings in binary format.
  • The hash of the previous block is calculated directly from its hexadecimal representation.

Example

Ethereum: How is the Target Hash determined?

Let’s say we have a mined block with the following components:

Block header: “0x1234567890abcdef”.

Transaction list: “0x1e5d6a7b8c9d0e0f”.

Previous block hash: “0xfedcba9876543210”

When calculating the target hash, we get:

+---------------+

| seed |

+--------------+

|

|

v

+---------------+

| (Block header) |

| (Transaction list)|

+--------------+

|

|

v

+---------------+

| (Previous block hash) |

+--------------+

The resulting target hash is a hexadecimal value that represents the cumulative effect of all of these components. Through this process, the Ethereum network ensures that each block has a unique and challenging target hash that miners must solve.

Conclusion

In conclusion, the calculation of the target hash involves combining random numbers with modular arithmetic, hexadecimal conversion, and SHA-256 hashing to produce a unique digital fingerprint. The use of leading zeros ensures that the resulting value is a multiple of 2^256, while the hexadecimal conversion helps represent each component in a compact binary format. This complex process is what makes Ethereum’s target hash so difficult for miners to solve, resulting in new blocks being created and validated on the blockchain.

decentralized stablecoins money

لینک کوتاه

برچسب ها

ناموجود
ارسال نظر شما
مجموع نظرات : 0 در انتظار بررسی : 0 انتشار یافته : 0
  • نظرات ارسال شده توسط شما، پس از تایید توسط مدیران سایت منتشر خواهد شد.
  • نظراتی که حاوی تهمت یا افترا باشد منتشر نخواهد شد.
  • نظراتی که به غیر از زبان فارسی یا غیر مرتبط با خبر باشد منتشر نخواهد شد.