Amamto - checksum

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {
            string data = "http://beautifulstyles.blog.cz/1305/hair-for-spring-2013/komentare/1#107434844";

            // 1c524ff635da12a088d22c32bac0bbb1 // správně
            Uri uri;
            Uri.TryCreate(data, UriKind.RelativeOrAbsolute, out uri);

            Console.WriteLine(uri.ToString());

            string ch = GetCheckSum(GetUrlStandartized(uri));

            Console.WriteLine(ch);
            Console.ReadLine();
        }

        public static string GetCheckSum(string text)
        {
            byte[] binary = Encoding.Unicode.GetBytes(text);

            using (MD5 md5Hash = MD5.Create())
            {
                byte[] data = md5Hash.ComputeHash(binary);

                StringBuilder sBuilder = new StringBuilder();

                for (int i = 0; i < data.Length; i++)
                {
                    sBuilder.Append(data[i].ToString("x2"));
                }

                return sBuilder.ToString();
            }
        }

        public static string GetUrlStandartized(Uri uri)
        {
            if (uri == null)
                throw new NullReferenceException("Url is null!");
            string host = uri.Host;
            if (host.StartsWith("www."))
                host = host.Remove(0, 4);
            if (host.StartsWith("ww."))
                host = host.Remove(0, 3);
            string urlStandart = string.Format("http://{0}{1}{2}", host, uri.AbsolutePath, GetQueryStringStandartized(uri));
            return urlStandart;
        }

        public static string GetQueryStringStandartized(Uri uri)
        {
            if (uri == null)
                throw new NullReferenceException("Url is null!");

            string queryStringStandartized = string.Empty;
            string query = uri.Query;
            if (string.IsNullOrEmpty(query))
                return string.Empty;
            if (!query.StartsWith("?"))
                throw new Exception("Spatny QueryString! Nezacina '?'");
            query = query.Remove(0, 1); // odebranini '?'
            List<string> queryStringPar = query.Split('&').ToList();
            if (queryStringPar != null)
            {
                queryStringPar.Sort();
                queryStringStandartized = "?" + queryStringPar[0];
                queryStringPar.RemoveAt(0);
                foreach (var item in queryStringPar)
                {
                    queryStringStandartized += string.Format("&{0}", item);
                }
            }
            return queryStringStandartized;
        }
    }
}