Bitcoin: How can I tell who mined a certain block? [duplicate]

Decrypting a block mined by a Bitcoin node

As the world’s largest cryptocurrency network, understanding how to mine Bitcoin blocks is essential for anyone interested in blockchain technology and mining. In this article, we will address the process of determining who has mined a particular block on the Bitcoin blockchain.

Decoded hexadecimal value: easy access

One common method for identifying who mined a block involves analyzing the decoded
OP_RETURN (Output Parameter Return) value in the first transaction that created the block. OP_RETURN is a special type of output that allows miners to create custom transactions without storing them on the blockchain.

Here’s how it works:

• There are two types of transactions in each block:
  Normal transactions and
  OP_RETURN transactions.

• Normal transactions contain the necessary data to create new coins or funds, while OP_RETURN transactions have a unique purpose.

• When a miner creates a new block, it selects NP (new reward) which can be used to mine new coins or assets.

• The first transaction in a new block is called a
  Pre-Miner transaction

  

  , which contains NP and other necessary data.

Decoding OP_RETURN transactions

To analyze OP_RETURN transactions, you must decode the hexadecimal value of each output address:

• Open a Bitcoin client or use an online tool that supports decoding hex values.

• Look for the first transaction in the new block (usually a
  Pre-Miner Transaction) and identify the exit addresses.

• Parse the hexadecimal values ​​of these addresses to determine which belong to OP_RETURN transactions.

Recognizing who mined the block

To find out who mined a block, you need to consider several factors:

• Block Header: Check the Merkle Root hash of the block header to identify potential mining candidates.

• Number of transactions and hash values: Look at the number of transactions in a new block and their hash values ​​(i.e. hexadecimal values).

• Hashing power distribution: Analyze the distribution of hashing power across different nodes, as it can show who has the computing resources needed to mine.

Conclusion

Decrypting Bitcoin blocks involves analyzing OP_RETURN transactions and understanding the role of block headers, transaction counts, and hash power distribution. By taking these factors into account, you can determine who mined a particular block on the Bitcoin blockchain. While this method is not foolproof, it provides a good starting point for anyone who wants to learn more about Bitcoin mining.