SHA-256
By CoinGecko | Updated on Mar 03, 2020
A cryptographic hash function that generates a 256-bit signature for a text, used in Bitcoin Proof-of-Work (PoW). Standing for “Secure Hash Algorithm”, it is one of the SHA-2 algorithms, first designed by the NSA.
Related Terms
51% Attack
An attack on blockchain by a group of miners controlling more than 50% of network hash rate
Proof of Work (PoW)
A consensus algorithm in which a block is validated via mathematical hashing
PFP
It means both 'profile pic' and 'picture for proof'.
Genesis Block
It is the first block of data that is processed and validated to form a new blockchain, typically called as 'block 0' or 'block 1'.
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