𝘾𝙔𝘽𝙀𝙍 𝙏𝘼𝙇𝙆 ™ 😷 𝗛𝗮𝗰𝗸𝗶𝗻𝗴 𝗧𝗼𝗼𝗹𝘀 . 𝙇𝙚𝙖𝙠𝙨 & 𝙈𝙤𝙧𝙚

2022-05-19 19:53:47 باز کردن / نظر دهید

2022-05-19 19:53:37 Hence, all blocks are contained hashes of previous blocks. This is the technique that makes a blockchain so secure. Let’s see how it works –


Assume an attacker can change the data present in Block 2. Correspondingly, the Hash of the Block also changes. But Block 3 still contains the old Hash of Block 2. This makes Block 3, and all succeeding blocks invalid as they do not have the correct Hash of the previous block. باز کردن / نظر دهید

2022-05-19 19:53:30 باز کردن / نظر دهید

2022-05-19 19:53:20 What is SHA256 Hash

Therefore, the Hash is very useful when you want to detect changes to intersections. If the fingerprint of a block changes, it does not remain the same block.

Each Block has

Data

Hash

Hash of the previous block

Consider the following example, where we have a chain of 3 blocks. The 1st block has no predecessor. Hence, it does not contain has the previous block. Block 2 contains a hash of block 1. While block 3 contains Hash of block 2. باز کردن / نظر دهید

2022-05-19 19:53:12 باز کردن / نظر دهید

2022-05-19 19:53:03 Understanding SHA256 – Hash

A block also has a hash. A can be understood as a fingerprint which is unique to each block. It identifies a block and all of its contents, and it’s always unique, just like a fingerprint. So once a block is created, any change inside the block will cause the Hash to change. باز کردن / نظر دهید

2022-05-19 19:52:55 Bitcoin Block
The first block in the chain is called the Genesis block. Each new block in the chain is linked to the previous block. باز کردن / نظر دهید

2022-05-19 19:52:49 باز کردن / نظر دهید

2022-04-27 13:12:16 باز کردن / نظر دهید

2022-04-24 22:31:15 𝙒𝘼𝙏𝘾𝙃 𝙎𝙃𝘼𝙍𝙀 𝙇𝙀𝘼𝙍𝙉 = 𝙀𝘼𝙍𝙉 باز کردن / نظر دهید