In attempting to create a clone, a few things have to be considered... things like block time, reward, etc are often changed. What other things should be considered when messing with the source code?

  • 1
    Number of confirms for accepting mature coins from mining and transacting. Very few people understand that waiting for 6 confirms on the Bitcoin network is not equal to waiting for 6 confirms in Litecoin, for example.
    – bvpx
    Commented Oct 30, 2013 at 21:02

1 Answer 1


You should study the current alt-coins world:

The most interesting alt-coins today on my sight are:

The fastest way to understand what must be changed is take a source bitcoin-0.6.3-linux.tar.gz and source of litecoin 60300.

Thereafter, extract both archives into two directories and simply diff -rHvn bitcoin litecoin.

Change the names of configuration files, number of ports, etc... And change the hash function, if you wish.

You surely will meet two common troubles:

  • Kill network by difficulty. Someone may come to your network with >50% of power, increase the difficulty and then disappear. After that, your network participants would found next block with BIG delay, which will break the stability of transactions, etc...
  • ASIC miner. Today, any gamer with a TOP video card can't mine, in the top pool, not even ONE Bitcoin for years, because of ASIC miners. What to say about a finding of block, solo-mining.

First can be solved, I think, by reinventing dependence on the difficulty by adding a dependency on Time. For example:

Next block must be with 10 zeroes in the start, but after one minute the number of zeroes would be decreased by one, at the second minute decrease this doorstep again, etc...

Second, the ASIC miner, may be conquered by the really hard hash algorithm. Look at the QRK: probably nobody will draw such circuit while the game isn't worth the candles. But here you'll meet next attack: someone may analyze the cascade of hashes and find a much easiest way to getting blocks.

You can observe the world of alt-coins and you will realize that nobody needs your new coin. There are about 30 very active alt-coins and about 100 in incipience. I predict: "In the next year this numbers would be multiplied by 10!": 300 active alt-coins with various difference from bitcoin and 1000 full clones, differing only by labels.

You could blow up the market with super innovation.

One of the most interesting and costly thing is traceability of money, on my sight. E.g. Look at zerocoin.

The second is a dying of mining. The market of bitcoin might plop in.

Edit: Also, there is rippled/xrp, sometimes ago it has become opensource.

Also, look at granpa of ripple:

One day, surely, there will appear a child of bitcoin and ripple. Kind of crypto-money-mutant.

I leave here a little space for the future to add more interesting questions and answers.

  • How do I get the litecoin 60300 source?
    – Shamoon
    Commented Nov 3, 2013 at 20:54
  • Something like: cd /usr/src; git clone https://github.com/litecoin-project/litecoin; cd litecoin; git rebase 3aaa7ba5d05ff7ec35e2cd704e1e1b3da58b70b4;. You should download full bitcoin's and litecoin's gits.
    – bellicose
    Commented Nov 4, 2013 at 22:08
  • Where did you come up with 3aaa7ba5d05ff7ec35e2cd704e1e1b3da58b70b4?
    – Shamoon
    Commented Nov 4, 2013 at 22:18
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    When you clone full litecoin's git repository, you could check the log git log, there is record from Date: Fri Jun 29 13:42:04 2012 -0700: Change version to 0.6.3, thereafter going a couple of fixes. My current version of git for experiments with clones is: Date: Sun Apr 14 01:50:46 2013 -0700: with last log record: Do not warn about obsolete version.. It looks like a complete litecoin v.60300. Just try to rebase here and compare with bitcoin 0.6.3, you'll see that there is no so many differences between ltc and btc.
    – bellicose
    Commented Nov 16, 2013 at 7:33
  • Please add a reference to Nxt ( www.thenxtcoin.com ), 2nd crypto-currency whose code doesn't descend from Bitcoin. It's an interesting concept: all coins have been pre-mined and no more will ever be, you earn interest just by holding some Nxt (receiving a share of the transaction fees paid by others) which is proportional to how many Nxt coins you have.
    – Joe Pineda
    Commented Feb 9, 2014 at 12:02

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