# SHA-256 1. A very strong [[Cryptography|cryptographic]] standard that is used as the basis for [[Bitcoin (blockchain)]]'s and other [[Proof of Work (PoW)]] systems (see above). It is also the technology that protects [[Wallet|wallets]]. 3. SHA-256 is a [[Cryptography|cryptographic]] algorithm used by [[Crypto (cryptocurrency)|cryptocurrencies]] such as [[Bitcoin (blockchain)]]. However, it uses a lot of computing power and processing time, forcing miners to form [[Mining Pool(s)|mining pools]] to capture gains. 4. Is an encryption algorithm that underlies the [[bitcoin (BTC)]] and some other [[Crypto (cryptocurrency)|cryptocurrencies]] [[Mining|mining]]. 5. Is the [[Cryptographic Hash Function|cryptographic function]] used as the basis for bitcoin’s [[Proof of Work (PoW)]] system.