[ANN] Quantumcoin

[Lhunephel]

After playing around some time with the code of Litecoin I'm now finished with my own little blockchain.

  * based on the latest version of Litecoin
  * total of 256 million coins
  * block maturity after 100 confirmations
  * block value is cut in half every 256000 blocks
  * dynamic retarget interval and target timespan

The target spacing and the retarget interval depends on the networking hashrate. The maximum target spacing is 240, the minimum target spacing is 120. The maximum retarget interval is 15, the minimum retarget interval is 3. Those parameters results in a maximum target timespan of 3600 and a minimum target timespan of 360.

  * increasing block value with increasing difficulty

The minimum block value is 10 and the maximum block value of 50 will be reached when difficulty reaches appr. 110. The first blocks are already calculated to reach an appropriate starting difficulty (appr. 0.4 at the moment).

The sources are available on GitHub (https://github.com/quantumcoin/quantumcoin) and should work on Linux and Windows. I could only test on Linux.

A Windows binary is now available at http://www.quantumcoin.org/files/quantumcoin.zip.

There is one DNS seed with three nodes available and seeding through IRC is also working. It should not be necessary to manual add nodes.

Enjoy.



example quantumcoin.conf:

Code:

rpcuser=quantumcoinrpc
rpcpassword=fcaa68021c224f4d9f51cead988643b2
server=1
daemon=1

example entry in the pools array of cgminer/bfgminer:

Code:

{
        "url" : "http://localhost:9999/",
        "user" : "quantumcoinrpc",
        "pass" : "fcaa68021c224f4d9f51cead988643b2"
}

[tytanick]

but 800 blocks premined ?

[mullick]

reserved

[blastbob]

w00p w00p

[sellbuy]

i don't even have a program installed to compile this pile of sh...

[karlsberg]

but 800 blocks premined ?

That's standard

[maxsolnc]

What is the matter of this coin?

[billionaire]

I will only mine this coin if Scott Bakula designed it. I'm going to guess it was Hazard, though.....and I'm pretty sure hes not Scott Bakula.

[BladeRunner]

i don't even have a program installed to compile this pile of sh...

+1
Fail release.

[JimmyFL]

The first blocks are already calculated to reach an appropriate starting difficulty (appr. 0.4 at the moment) ?


Difficulty is based on hashing power, not on block count 

[sumantso]

I may or may not mine it.

[jackjack]

Why 'quantum' ?

[forsetifox]

I may or may not mine it.

 

[JimmyFL]

Why 'quantum' ?

Cause it sounds special? 

[spoid]

the idea might be a bit nicer than your average copycoin, but releasing out of the blue without windows binaries was not so smart

[blastbob]

First time i had to do just to "make" on a coin

[BladeRunner]

the idea might be a bit nicer than your average copycoin, but releasing out of the blue without windows binaries was not so smart

Trying to gain traction with the "leet" who keeps compilers on their boxen. perhaps in some manner to add validity to the release by source only?

[Lhunephel]

To answer a few questions:

  * Why Quantum? Why not? It just liked the word.

  * What's new with QTC? First the block value is addicted to the difficulty. Higher difficulty results in higher block value. Second the target timespan and the retarget interval is addicted to the overall network hashrate.

  * Why no Windows binaries? I think a source release is sufficient. You can build windows binaries with the included Makefiles. Just install the MinGW Toolchain (including UPnP). I have to do that for every alternative coin because they usually don't ship Linux binaries.

  * Why are there premined blocks? Just to have a higher starting difficulty without mining a genesis block with a high difficulty. Sure, it's not the number of the blocks determining the difficulty, but the difficulty just adapts slowly over time.

[Joerii]

No windows is just dumb. 90% of users ( like me ) don't have the skills to compile.

[defaced]

Good luck dev!

[jackjack]

To answer a few questions:

  * Why Quantum? Why not? It just liked the word.

  * What's new with QTC? First the block value is addicted to the difficulty. Higher difficulty results in higher block value. Second the target timespan and the retarget interval is addicted to the overall network hashrate.

  * Why no Windows binaries? I think a source release is sufficient. You can build windows binaries with the included Makefiles. Just install the MinGW Toolchain (including UPnP). I have to do that for every alternative coin because they usually don't ship Linux binaries.

  * Why are there premined blocks? Just to have a higher starting difficulty without mining a genesis block with a high difficulty. Sure, it's not the number of the blocks determining the difficulty, but the difficulty just adapts slowly over time.

You could have put a 0 (or ~0) reward until block 1000 or so
Otherwise I like this coin

[BrewCrewFan]

No windows is just dumb. 90% of users ( like me ) don't have the skills to compile.

this

[Bitcoin.Greece]

With all this new coins all comes down to the coin name ... and the use of the coin ...

[juve4v]

No one wants to mine it but diff 0.49 already lol !

[BrewCrewFan]

No one wants to mine it but diff 0.49 already lol !

most likely a few with a lot of fire power.

I would be fun to look but i cant figure out how to compile on windows so this is garbage to me lol...wont be worth shit to anyone cept maybe a few sense no one else can mine.

Of course, aint as bad as another coin today.... that one you dont even get connections.

[digitalindustry]

What is the matter of this coin?

what he said.

[iGotSpots]

Why won't people learn that if you don't post binaries, your coin will be shit and go nowhere?

[Eli0t]

[Lhunephel]

I don't understand the problem with the windows binaries, because I always compile the sources after having a look inside the code. Why can't any of the Windows users simply compile and upload the binaries? Unfortunately I'm not familiar with Windows and I don't have any testing systems for Windows. Will have a look at the MinGW tool chain.

[iGotSpots]

I don't understand the problem with the windows binaries, because I always compile the sources after having a look inside the code. Why can't any of the Windows users simply compile and upload the binaries? Unfortunately I'm not familiar with Windows and I don't have any testing systems for Windows. Will have a look at the MinGW tool chain.

Most of us can, but what's the point? If the noobs can't mine it, we have noone to sell it to

[BladeRunner]

I don't understand the problem with the windows binaries, because I always compile the sources after having a look inside the code. Why can't any of the Windows users simply compile and upload the binaries? Unfortunately I'm not familiar with Windows and I don't have any testing systems for Windows. Will have a look at the MinGW tool chain.

Because, it takes some time to install mingw, takes a lot of drive space. Usually have troubles getting various releases to compile. its just a bit pain in the A**. That being said the same reasons you didnt feel the need to include the binary release it was just too big of pain in the A** for you too.  Thats pretty telling dude, if you dont care enough to include a windows binary for 80% of the users out here, Most of which know NOTHING of how mingw or how to use make.  

It tells us all that you have very little interest in making this coin go very far.

[iGotSpots]

I don't understand the problem with the windows binaries, because I always compile the sources after having a look inside the code. Why can't any of the Windows users simply compile and upload the binaries? Unfortunately I'm not familiar with Windows and I don't have any testing systems for Windows. Will have a look at the MinGW tool chain.

Because, it takes some time to install mingw, takes a lot of drive space. Usually have troubles getting various releases to compile. its just a bit pain in the A**. That being said the same reasons you didnt feel the need to include the binary release it was just too big of pain in the A** for you too.  Thats pretty telling dude, if you dont care enough to include a windows binary for 80% of the users out here, Most of which know NOTHING of how mingw or how to use make.  

It tells us all that you have very little interest in making this coin go very far.

Nail, meet hammer

[peonminer]

I need solid evidence of your coin's improvements over others to justify giving it some hash.

[Remember remember the 5th of November]

To answer a few questions:

  * Why Quantum? Why not? It just liked the word.

  * What's new with QTC? First the block value is addicted to the difficulty. Higher difficulty results in higher block value. Second the target timespan and the retarget interval is addicted to the overall network hashrate.

  * Why no Windows binaries? I think a source release is sufficient. You can build windows binaries with the included Makefiles. Just install the MinGW Toolchain (including UPnP). I have to do that for every alternative coin because they usually don't ship Linux binaries.

  * Why are there premined blocks? Just to have a higher starting difficulty without mining a genesis block with a high difficulty. Sure, it's not the number of the blocks determining the difficulty, but the difficulty just adapts slowly over time.

You could have put a 0 (or ~0) reward until block 1000 or so
Otherwise I like this coin

It's not necessary to pre-mine to have a higher starting difficulty. We have access to the code, we can do virtually anything.

[optimusprime]

when release?

[jackjack]

To answer a few questions:

  * Why Quantum? Why not? It just liked the word.

  * What's new with QTC? First the block value is addicted to the difficulty. Higher difficulty results in higher block value. Second the target timespan and the retarget interval is addicted to the overall network hashrate.

  * Why no Windows binaries? I think a source release is sufficient. You can build windows binaries with the included Makefiles. Just install the MinGW Toolchain (including UPnP). I have to do that for every alternative coin because they usually don't ship Linux binaries.

  * Why are there premined blocks? Just to have a higher starting difficulty without mining a genesis block with a high difficulty. Sure, it's not the number of the blocks determining the difficulty, but the difficulty just adapts slowly over time.

You could have put a 0 (or ~0) reward until block 1000 or so
Otherwise I like this coin

It's not necessary to pre-mine to have a higher starting difficulty. We have access to the code, we can do virtually anything.

Sure but OP made a crazy system where everything moves so I guess he wanted to see how that would really behave
Also, it looks like he wanted to put a high difficulty without a high difficulty for the genesis block

[Lhunephel]

Sure but OP made a crazy system where everything moves so I guess he wanted to see how that would really behave
Also, it looks like he wanted to put a high difficulty without a high difficulty for the genesis block

That's it. First I wanted to see if everything behaves like expected and second I don't wanted a high difficulty for the genesis block. Searching a genesis block with lower difficulty is much more fun. Really, I don't understand the problem. The first blocks were mined at the lowest block value only to increase the difficulty. The block value will soon increase.

When you set the starting difficulty too low everyone cries "the orphans, the orphans". But if you announce the block chain with a higher difficulty it is also not good.

[Lhunephel]

And sorry about the Windows binaries. But I think that's a problem of the community. I'm not a Windows user, I don't have testing systems. If there are really 90% users using Windows there should be enough users able to compile the sources on Windows (without an high effort). I think it's the fairest way to release only the sources.

Anyway, it doesn't matter in this case. The block chain was announced with a reasonable high difficulty and the block value increases with the difficulty. Also the target time span decreases with higher network hash rate and the retarget interval decreases with higher network hash rate. So there is no disadvantage when you mine this coin days, weeks or months after the announcement.

[Lhunephel]

This is a list of the block values until difficulty 20. The formula is rather simple: nSubsidy = ((0.2 * exp(nDifficulty / 250) / pow(nDifficulty, -0.25)) * 50), but working. The minimum block value is 10, the maximum block value is 50 (will be reached with difficulty 110).

0.000000 = 0.000000
1.000000 = 10.040080
2.000000 = 11.987589
3.000000 = 13.319620
4.000000 = 14.370230
5.000000 = 15.255568
6.000000 = 16.031010
7.000000 = 16.727643
8.000000 = 17.364805
9.000000 = 17.955406
10.000000 = 18.508524
11.000000 = 19.030804
12.000000 = 19.527266
13.000000 = 20.001803
14.000000 = 20.457497
15.000000 = 20.896834
16.000000 = 21.321848
17.000000 = 21.734230
18.000000 = 22.135398
19.000000 = 22.526555
20.000000 = 22.908732

[Lhunephel]

A Windows binary is now also available at http://www.quantumcoin.org/files/quantumcoin.zip.

[Lhunephel]

The difficulty is increasing fast. I hope that a pool will be available in the next days.

[robolove]

Officially dead?