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experimental-genesis    1 //  /****************************\
experimental-genesis    2 // *      EXPERIMENTAL BRANCH.    *
experimental-genesis    3 // *    FOR LABORATORY USE ONLY.  *
experimental-genesis    4 // ********************************
experimental-genesis    5 //           ************
experimental-genesis    6 //          **************
experimental-genesis    7 //         ****************
experimental-genesis    8 //        ****   ****   ****
experimental-genesis    9 //        ***     ***    ***
experimental-genesis   10 //        ***     ***    ***
experimental-genesis   11 //         ***    * *    **
experimental-genesis   12 //         ******** ********
experimental-genesis   13 //         *******   ******
experimental-genesis   14 //             ***   **
experimental-genesis   15 //           *  ******* **
experimental-genesis   16 //           ** * * * * *
experimental-genesis   17 //     **     *         *     ***
experimental-genesis   18 //    ****    * *     * *    ****
experimental-genesis   19 //    ****    *** * * **     ***
experimental-genesis   20 //     ****    *********   ******
experimental-genesis   21 //    *******    *****    *******
experimental-genesis   22 //    *********        ****** **
experimental-genesis   23 //     **   ******   ******
experimental-genesis   24 //            **  *******       **
experimental-genesis   25 //    **       *******         ***
experimental-genesis   26 //   ****   ********  ************
experimental-genesis   27 //   ************    ************
experimental-genesis   28 //    ********             *******
experimental-genesis   29 //   ******                   ****
experimental-genesis   30 //    ***                      ***
experimental-genesis   31 // ********************************
experimental-genesis   32 // Copyright (c) 2009-2012 The Bitcoin developers
experimental-genesis   33 // Distributed under the MIT/X11 software license, see the accompanying
experimental-genesis   34 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
experimental-genesis   35 
experimental-genesis   36 #include <boost/assign/list_of.hpp> // for 'map_list_of()'
experimental-genesis   37 #include <boost/foreach.hpp>
experimental-genesis   38 
experimental-genesis   39 #include "headers.h"
experimental-genesis   40 #include "checkpoints.h"
experimental-genesis   41 
experimental-genesis   42 namespace Checkpoints
experimental-genesis   43 {
experimental-genesis   44     typedef std::map<int, uint256> MapCheckpoints;
experimental-genesis   45 
experimental-genesis   46     //
experimental-genesis   47     // What makes a good checkpoint block?
experimental-genesis   48     // + Is surrounded by blocks with reasonable timestamps
experimental-genesis   49     //   (no blocks before with a timestamp after, none after with
experimental-genesis   50     //    timestamp before)
experimental-genesis   51     // + Contains no strange transactions
experimental-genesis   52     //
experimental-genesis   53     static MapCheckpoints mapCheckpoints =
experimental-genesis   54         boost::assign::map_list_of
experimental-genesis   55         ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
experimental-genesis   56         ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
experimental-genesis   57         ( 68555, uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a"))
experimental-genesis   58         ( 70567, uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a"))
experimental-genesis   59         ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
experimental-genesis   60         (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
experimental-genesis   61         (118000, uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553"))
experimental-genesis   62         (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
experimental-genesis   63         (140700, uint256("0x000000000000033b512028abb90e1626d8b346fd0ed598ac0a3c371138dce2bd"))
experimental-genesis   64         (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
experimental-genesis   65         ;
experimental-genesis   66 
experimental-genesis   67     bool CheckBlock(int nHeight, const uint256& hash)
experimental-genesis   68     {
experimental-genesis   69         if (fTestNet) return true; // Testnet has no checkpoints
experimental-genesis   70 
experimental-genesis   71         MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight);
experimental-genesis   72         if (i == mapCheckpoints.end()) return true;
experimental-genesis   73         return hash == i->second;
experimental-genesis   74     }
experimental-genesis   75 
experimental-genesis   76     int GetTotalBlocksEstimate()
experimental-genesis   77     {
experimental-genesis   78         if (fTestNet) return 0;
experimental-genesis   79 
experimental-genesis   80         return mapCheckpoints.rbegin()->first;
experimental-genesis   81     }
experimental-genesis   82 
experimental-genesis   83     CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
experimental-genesis   84     {
experimental-genesis   85         if (fTestNet) return NULL;
experimental-genesis   86 
experimental-genesis   87         BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
experimental-genesis   88         {
experimental-genesis   89             const uint256& hash = i.second;
experimental-genesis   90             std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
experimental-genesis   91             if (t != mapBlockIndex.end())
experimental-genesis   92                 return t->second;
experimental-genesis   93         }
experimental-genesis   94         return NULL;
experimental-genesis   95     }
experimental-genesis   96 }