Novacoin/Checkpoints.cs

   1 using System;
   2
   3 namespace Novacoin
   4 {
   5     public class Checkpoints
   6     {
   7         private static Tuple<uint, uint256, uint>[] checkpoints = new Tuple<uint, uint256, uint>[]
   8             {
   9                 new Tuple<uint, uint256, uint>(0, NetInfo.nHashGenesisBlock, 1360105017)
  10             };
  11
  12         /// <summary>
  13         /// Last checkpoint height.
  14         /// </summary>
  15         public static uint TotalBlocksEstimate { get { return checkpoints[checkpoints.Length - 1].Item1; } }
  16
  17         /// <summary>
  18         /// Last checkpoint timestamp.
  19         /// </summary>
  20         public static uint LastCheckpointTime { get { return checkpoints[checkpoints.Length - 1].Item3; } }
  21
  22         /// <summary>
  23         /// Block hash verification.
  24         /// </summary>
  25         /// <param name="nHeight">Block height.</param>
  26         /// <param name="nBlockHash">Block hash.</param>
  27         /// <returns></returns>
  28         public static bool Verify(uint nHeight, uint256 nBlockHash)
  29         {
  30             foreach (var checkpoint in checkpoints)
  31             {
  32                 if (checkpoint.Item1 == nHeight)
  33                 {
  34                     return nBlockHash == checkpoint.Item2;
  35                 }
  36             }
  37
  38             return true;
  39         }
  40     }
  41 }