j-Coin information thread

[r3wt]

Just in case anybody needs it (or is to lazy to edit two lines from the YAC cpuminer). Here's a modified version of cpuminer that should work with j-coin. Note, I just started testing it and I haven't gotten any blocks yet.

https://mega.co.nz/#!VcRhhSYb!V-1OVB8nOWWd9NndKCLzZnWdZw0pwl1AqJQ-Xll8SNg

Modified from mikaelh's source here -> http://yacointalk.com/index.php/topic,264.0.html

work with radeon 5850's?

[sensecrack]

Can't run with win7 64bit ,how to do it?

if you installed with Jinstaller:

1. right click the program icon on your desktop
 
2. click properties in the drop down menu.
 
3. then click on the "Compatibility" tab.

4. select the checkbox that says "run this program in compatibility for..." "Windows XP Service Pack 3"  should be the first option. if its not, select it from the drop down menu.

5. click apply.

6. run the program.

The "compatibility" mode can't run yet, the application just stop.

[paulthetafy]

I thought reward was meant to be 5 after block 2000...

Code:

else if (nHeight > 2000 && nHeight < 10000) 
	{ 
	    nSubsidy = 5 * COIN; 
	}

but

Code:

{
"blocks" : 2019,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 1.76140945,
"errors" : "",
"generate" : false,
"genproclimit" : -1,
"hashespersec" : 0,
"networkhashps" : 121806456,
"pooledtx" : 0,
"testnet" : false,
"Nfactor" : 4,
"N" : 32,
"powreward" : 1.00000000
}

[GSnak]

Just in case anybody needs it (or is to lazy to edit two lines from the YAC cpuminer). Here's a modified version of cpuminer that should work with j-coin. Note, I just started testing it and I haven't gotten any blocks yet.

https://mega.co.nz/#!VcRhhSYb!V-1OVB8nOWWd9NndKCLzZnWdZw0pwl1AqJQ-Xll8SNg

Modified from mikaelh's source here -> http://yacointalk.com/index.php/topic,264.0.html

Hashespersec any better on Win7 64?

[Fablio2]

Transaction fee is too big (0.005) for such difficult to mine coin.

[r3wt]

Transaction fee is too big (0.005) for such difficult to mine coin.

[shazbits]

It compiles but assert (see my post above where I talk about the suggested fix and how this fix doesn't work in many ways).

Also the source .7z contains the mehcoind binary in src/.

ok i will give you the correct variables. its up to you to plug them in

Code:

block.GetHash() == 00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db
block.hashMerkleRoot == 0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb
block.nTime = 1375158531 
block.nNonce = 829036 
CBlock(hash=00000d2ce10281089f47, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=0e7abe3621, nTime=1375158531, nBits=1e0fffff, nNonce=829036, vtx=1, vchBlockSig=)
  Coinbase(hash=0e7abe3621, nTime=1375158511, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
    CTxOut(empty)
  vMerkleTree: 0e7abe3621 
SetBestChain: new best=00000d2ce10281089f47  height=0  trust=1  date=07/30/13 04:28:51

That breaks down to:

merkle = 0x0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb

genblock = 0x00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db

nTime = 1375158531

nNonce = 829036

please let me know if that fixes it.

What is this now, a puzzle? A game where the goal is to successfully compile and run without asserts a coin that is released? If so this coin and memorycoin are the clear winner in that category.

[r3wt]

It compiles but assert (see my post above where I talk about the suggested fix and how this fix doesn't work in many ways).

Also the source .7z contains the mehcoind binary in src/.

ok i will give you the correct variables. its up to you to plug them in

Code:

block.GetHash() == 00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db
block.hashMerkleRoot == 0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb
block.nTime = 1375158531 
block.nNonce = 829036 
CBlock(hash=00000d2ce10281089f47, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=0e7abe3621, nTime=1375158531, nBits=1e0fffff, nNonce=829036, vtx=1, vchBlockSig=)
  Coinbase(hash=0e7abe3621, nTime=1375158511, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
    CTxOut(empty)
  vMerkleTree: 0e7abe3621 
SetBestChain: new best=00000d2ce10281089f47  height=0  trust=1  date=07/30/13 04:28:51

That breaks down to:

merkle = 0x0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb

genblock = 0x00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db

nTime = 1375158531

nNonce = 829036

please let me know if that fixes it.

What is this now, a puzzle? A game where the goal is to successfully compile and run without asserts a coin that is released? If so this coin and memorycoin are the clear winner in that category.

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

[innovation]

Happy mining!

[shazbits]

It compiles but assert (see my post above where I talk about the suggested fix and how this fix doesn't work in many ways).

Also the source .7z contains the mehcoind binary in src/.

ok i will give you the correct variables. its up to you to plug them in

Code:

block.GetHash() == 00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db
block.hashMerkleRoot == 0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb
block.nTime = 1375158531 
block.nNonce = 829036 
CBlock(hash=00000d2ce10281089f47, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=0e7abe3621, nTime=1375158531, nBits=1e0fffff, nNonce=829036, vtx=1, vchBlockSig=)
  Coinbase(hash=0e7abe3621, nTime=1375158511, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
    CTxOut(empty)
  vMerkleTree: 0e7abe3621 
SetBestChain: new best=00000d2ce10281089f47  height=0  trust=1  date=07/30/13 04:28:51

That breaks down to:

merkle = 0x0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb

genblock = 0x00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db

nTime = 1375158531

nNonce = 829036

please let me know if that fixes it.

What is this now, a puzzle? A game where the goal is to successfully compile and run without asserts a coin that is released? If so this coin and memorycoin are the clear winner in that category.

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

All those values don't even match what DogTownHero has posted in his (not-compiling) main.cpp in this post (https://bitcointalk.org/index.php?topic=264556.msg2858033#msg2858033), nor the source package on gdocs.

So where are you getting those values from?

The commented out code is what's in the posted source .7z (1st post), and what's below is what he posted in the link above. Your values are different from both. So wtf?

Code:

<         // Genesis Block:
<         // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
<         //   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
<         //     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
<         //     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
<         //   vMerkleTree: 4a5e1e
---
>         CBlock(hash=000000c249386a215da8, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=7a550e40fe, nTime=1375158511, nBits=1e0fffff, nNonce=3716373, vtx=1, vchBlockSig=)
>         Coinbase(hash=7a550e40fe, nTime=1375158491, ver=1, vin.size=1, vout.size=1, nLockTime=0)
>         CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
>         CTxOut(empty)
>         vMerkleTree: 7a550e40fe 

[Lloydimiller4]

Any news of when JPU might hit an exchange? Interesting to see what a low block reward coin will go for.

[DogtownHero]

It compiles but assert (see my post above where I talk about the suggested fix and how this fix doesn't work in many ways).

Also the source .7z contains the mehcoind binary in src/.

ok i will give you the correct variables. its up to you to plug them in

Code:

block.GetHash() == 00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db
block.hashMerkleRoot == 0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb
block.nTime = 1375158531 
block.nNonce = 829036 
CBlock(hash=00000d2ce10281089f47, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=0e7abe3621, nTime=1375158531, nBits=1e0fffff, nNonce=829036, vtx=1, vchBlockSig=)
  Coinbase(hash=0e7abe3621, nTime=1375158511, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
    CTxOut(empty)
  vMerkleTree: 0e7abe3621 
SetBestChain: new best=00000d2ce10281089f47  height=0  trust=1  date=07/30/13 04:28:51

That breaks down to:

merkle = 0x0e7abe3621183101283aa99a5b1fa9d345a1a6f56d90faa8b384b3af6e0d69bb

genblock = 0x00000d2ce10281089f47d707942122e011925e22a33aa06dd13959b12c1b80db

nTime = 1375158531

nNonce = 829036

please let me know if that fixes it.

What is this now, a puzzle? A game where the goal is to successfully compile and run without asserts a coin that is released? If so this coin and memorycoin are the clear winner in that category.

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

All those values don't even match what DogTownHero has posted in his (not-compiling) main.cpp in this post (https://bitcointalk.org/index.php?topic=264556.msg2858033#msg2858033), nor the source package on gdocs.

So where are you getting those values from?

The commented out code is what's in the posted source .7z (1st post), and what's below is what he posted in the link above. Your values are different from both. So wtf?

Code:

<         // Genesis Block:
<         // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
<         //   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
<         //     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
<         //     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
<         //   vMerkleTree: 4a5e1e
---
>         CBlock(hash=000000c249386a215da8, ver=1, hashPrevBlock=00000000000000000000, hashMerkleRoot=7a550e40fe, nTime=1375158511, nBits=1e0fffff, nNonce=3716373, vtx=1, vchBlockSig=)
>         Coinbase(hash=7a550e40fe, nTime=1375158491, ver=1, vin.size=1, vout.size=1, nLockTime=0)
>         CTxIn(COutPoint(0000000000, 4294967295), coinbase 04ffff001d020f271d5475652c203330204a756c20323031332030343a32383a303620474d54)
>         CTxOut(empty)
>         vMerkleTree: 7a550e40fe 

The commented out code was what shakezula commented out in the original mehcoin sources. since everyone is having such a difficult time with this, and since r3wt bricked the sources i'm going to manually go through and prepare a clean copy of j-coin straight from the mehcoin repository. i'm sorry about the inconvenience.

[GSnak]

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

This coin is going to change the world!

since r3wt bricked the sources i'm going to manually go through and prepare a clean copy of j-coin straight from the mehcoin repository.

I thought you were r3wt. Are you talking about yourself in the third person?

[DogtownHero]

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

This coin is going to change the world!

since r3wt bricked the sources i'm going to manually go through and prepare a clean copy of j-coin straight from the mehcoin repository.

I thought you were r3wt. Are you talking about yourself in the third person?

yeah, i am but apparently some people haven't realized it yet.

[r3wt]

no, i bricked the source in the process of compiling for windows. i tried my best to put it back to the way it was.

This coin is going to change the world!

since r3wt bricked the sources i'm going to manually go through and prepare a clean copy of j-coin straight from the mehcoin repository.

I thought you were r3wt. Are you talking about yourself in the third person?

yeah, i am but apparently some people haven't realized it yet.

^confirmed.

[whlx]

Transaction fee is too big (0.005) for such difficult to mine coin.

+1

Too big！

[r3wt]

Transaction fee is too big (0.005) for such difficult to mine coin.

+1

Too big！

every transaction destroys a portion of the supply, since the fee's can't be mined, theoretically meaning the coin is a bit rarer with each transaction.

[r3wt]

ok, j-coin sources were retrieved off of my desktop.

here ya go.

https://docs.google.com/file/d/0B5V5vln-sS3ELXpVNnY0SEltV2M/edit?usp=sharing

[DogtownHero]

Well the new source compile fine on Linux?

i don't know. you definitely need to have some debugging skills, but as far as the build this is the correct one. ahnmeds gonna try to build it later on Buntu

[Bakaboy]

ok, j-coin sources were retrieved off of my desktop.

here ya go.

https://docs.google.com/file/d/0B5V5vln-sS3ELXpVNnY0SEltV2M/edit?usp=sharing

This is uncompilable. For example:

Main.h does not contain the hash of the genesis block (Line 48)

Code:

static const uint256 hashGenesisBlockOfficial("0x");
static const uint256 hashGenesisBlockTestNet("0x");

LoadBlockIndex(..) has a large chunk of code that's been deleted (Main.cpp, Line 2536)

Code:

    //
    // Init with genesis block
    //
    --- Block initialization should be here!
        // Start new block file
        unsigned int nFile;

Reference to non-existing methods (Main.cpp, Line 4204):

Code:

	    //thanks adam m for this fix to override nBits.
        if (pblock->IsProofOfWork())
            pblock->vtx[0].vout[0].nValue = GetProofOfWorkReward(pindexPrev->nHeight+1, nFees, pindexPrev->GetBlockHash());

bitcon-qt.rc refers to non-existing resource novacoin.ico (Line 1)

Code:

IDI_ICON1 ICON DISCARDABLE "icons/novacoin.ico"

Etc etc. There's just no way you can compile anything from this source.