256-bit SHA (Secure Hash Algorithm) is a cryptographic hash function that takes an input of any length and produces a fixed-size 256-bit output, known as a message digest. This hash function is widely used in various security applications, such as digital signatures, message authentication, and timechain technology, to ensure the integrity and authenticity of data. Study #bitcoin 🧡 https://image.nostr.build/190fe73994431b2f485697a9d58c32c815e2db811cc95346ee253dedf136b8e4.jpg