What is SHA256 Hash Therefore, the Hash is very useful when y | 𝘾𝙔𝘽𝙀𝙍 𝙏𝘼𝙇𝙆 ™ 😷 𝗛𝗮𝗰𝗸𝗶𝗻𝗴 𝗧𝗼𝗼𝗹𝘀 . 𝙇𝙚𝙖𝙠𝙨 & 𝙈𝙤𝙧𝙚

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.