private static UInt256 GetMessageHash(ReadOnlyByteSpan message)
{
var messageHash = message.Sha256().ToHex();
return(new HashWriter().Add(MessageMagic).Add(messageHash).GetHashFinal());
}
/// <summary>
/// Computes RIPEMD160 of SHA256 of data: RIPEMD160(SHA256(data))
/// </summary>
/// <param name="data">Input: bytes to be hashed.</param>
/// <param name="hash">Output: RIPEMD160 of SHA256 of data.</param>
public static void Hash160(this ReadOnlyByteSpan data, ByteSpan hash)
{
var x = data.Sha256();
Ripemd160(x.Span, hash);
}