Ethereum: Calculate hash of block header
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Ethereum block #502871 Calculation of the abbreviation
As an enthusiastic programmer or researcher, understanding of blockchain’s internal operation can be fascinating. In this article, we look at how to calculate the Ethereum #502871 Hash block.
What is the block title?
The block headline is the first sign in the block chain. It contains information that allows you to check and check the events. There are several important fields in each title of blocks:
Hash: Sha-256-Hash from the whole block.
- `
Result ': a structure containing different values, including the number of meals ("reinforcements"), time stamps and much more.
- "Directory": Directors of the current blockchain block.
Hash counting
To calculate the abbreviation, you need to use the encryption algorithm. In this case, we use the SHA-256 (Safe Hash 256 algorithm).
Here's a step -by -step guide:
- Copy the structure of the block title : Save the structure of the block title as an JSON object or as any type of information.
- Convert the data type to syllables
: Convert the JSON object to the syllable using a library, such as "Json-Strringyfy-Safe" at Javascript, or "Json.dumps () Python.
- Calculate the SHA-256 Hash : Use the encryption library (e.g. OpenSSL) to calculate data SA-256 data.
Here are some examples of implementation:
JavaScript
`Javascript
Const blockheader = {
Result: {
// ... other values ...
},
Director: 502871,
};
// Convert Json to syllables
Const Blockbytes = buffer.from (json.strringyr (blockheader), "utf8");
// Calculate SH -256 abbreviation using the OpenSSL library
Const Crypto = requires ("encryption");
Const Sha256Hash = Crypto.createhash ("SHA256"). Update (Blockbytes) .digest ("hex");
Console.log (SHA256Hash);
Python
`Python
Bring Json
Bring Hashlib
Blockheader = {
'Result': {
... other values ...
},
"Directory": 502871,
}
Convert Json to syllables
Block_bytes = json.dumps (blockheader, sort_keys = true) .code ('UTF8')
Calculate the SHA-256 abbreviation using the Pycrypto library
with cryptography.hazmat.hazmat.phmives import
to the address
Def challe_sha256_hash (data):
Restore hash.sha256 (data). Digest ()
block_hash = calCULATE_SHA256_HASH (block_bytes)
Print (block_hash.hex ())
application
Calculation of the Ethereum Hash title is a key step in verifying events and providing blockchain integrity. By following these steps, you can easily get a specific SHA-256-Hash block using the desired programming language or data type conversion method.
Remember to use reputable libraries, such as OpenSSL, encryption operations and always follow the best safety practices when working with confidential information. Good coding!