The hash is composed of 64 hexadecimal characters 0123456789abcdef (ie 256 bits) The purpose of these functions is to maximize the footprint differences, even for small input string differences. $$ \operatorname(A,B,C) = (A \wedge B) \oplus (A \wedge C) \oplus (B \wedge C) $$ The algorithm uses non-linear functions such as: SHA256 encryption computes a 256-bit or 32-byte digital fingerprint, whose hexadecimal writing consists of 64 characters.
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