Easy to follow description of the equihash algorithm

Hi
I’m a little confuse
with this header
040000007003225F30E1015EE14609B222E6036B7572963E18355688A966BB0E00000000E53B8DC142BBF69584F26B5F1D2125B79F238E77D04A37CDFAE64D3CFE9B2E730000000000000000000000000000000000000000000000000000000000000000C85BDA595DB6121C4FFFFFFF05000000000000000000000000000000000000000000000000000000
and after + 00000000 and 01000000 and 02000000 then compute blake2b(50) I received these , that are different with your result

index 0 ====> aad5e0ace4562e371912fd1b2660f6e10e4456093e1f8a6ad8d4bdbe46accc087f636a1abcaab319abb85bfd4cfe987cf077

index 1 ===> bfd3bcba82f35bd49d3551bef1ce1d0cd7bf01a32ee43a36eac11cd627fbc5499cf8d1714fd4b63c96d5519ae3e5c99c3423

index 2 ===> 1fcb2423d9d5717712af4ffd5f5b95b6b5e230a896b8eb706d865dcfa6ac309d5a6ab50dbcd3162a818d5e1710bad0d36d9b

I used this implementation GitHub - metadings/Blake2B.cs: BLAKE2.cs source code package - C# implementation

What did I do wrong?
thanks.