i m trying to create an altcoin from the current Litecoin master branch on github. Its Litecoin in the version of 0.15.1.

By editing some parameter in chainparams.cpp i m able to create my genesis block. But i cant get the network to synchronize!

I m running litecoind on a vps with all ports open, and i am able to connect to the node when i start the litecoin-qt on my machine (with -addnode or -connect to the vps).

On my vps i can see my machine with -getpeerinfo and its block count (0). On my machine i can see that it is connected to the litecoin node on my vps. When running generate on my vps, to create some blocks, i can even see on my machine, that the block count of my vps has risen. Still, there is no synchronization! The blockchain on my machine stays 0.

The litecoin-qt on my machine shows me "Connecting to Network" all time, even though it is connected to the litecoin node on the vps.

In chainparams.cpp i have edited the following sections:


    pchMessageStart[0] = 0xf1;
    pchMessageStart[1] = 0xc0;
    pchMessageStart[2] = 0xb6;
    pchMessageStart[3] = 0xd0;
    nDefaultPort = 9333;
    nPruneAfterHeight = 100000;

and the genesisblock:

genesis = CreateGenesisBlock(1512851040, 376896, 0x1e0ffff0, 1, 25 * COIN);

and the checkpoint (the genesis block i created):

      checkpointData = (CCheckpointData) {
            {0,           uint256S("0x6213f0e07c17e4ccef1fd9d023b06ce7e8bdbddaf2c4175197149302b7c351e8")},

    chainTxData = ChainTxData{   

Anything else is unchanged! Ports, etc. are alle the same as with Litecoin! Please help. debug.log shows no errors. Took different approaches with -listen, -server, -deamon and of course a .conf file. Nothing seems to help. This is the last step of my first chapter in blockchain development :)


remove the chainTxData

chainTxData = ChainTxData{   

and make sure also that your first block is mined soon after the genesis time.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.