JKC, the newest Litecoin-based alt coin has arrived!

[nesic1]

what is your conf i am mining but no block found?

[joee]

There is some bug or something in this.

Miner is telling me 20 blocks found so far.
Thereof in the log i can see some to be stale.
The rest is just... what is it??? Log says accepted but nothing in my wallet.

try 'listtransactions' in the debug -> console window, probably they are orphan blocks

[markm]

Very simple fix:

In main.cpp, change line 36 from

static CBigNum bnProofOfWorkLimit(~uint256(0) >> 20); // Junkcoin: starting difficulty is 1 / 2^20

to

static CBigNum bnProofOfWorkLimit(~uint256(0) >> 30); // Junkcoin: starting difficulty is 1 / 2^30

Rebuild, run, and the whole difficulty problem goes away a lot.

If it is still too easy maybe go with >> 32 or >> 34 or >> 36 or whatever ends up working nicely.

>> 30 hopefully at least give us a few seconds between blocks, hopefully even the full minute that is the target time we are aiming for. If more than that at first that is good, as it would give time for more people to get aboard during the first "day".

This only fixes the difficulty problem. The "random" rewards will still be totally predictable.

-MarkM-

EDIT: I looks like it will need the genesis block to be re-mined though, as I think with this fix the old low-difficulty genesis block hash is causing problems: for example minerd gets error 500 trying to mine, so maybe when it tries to get work for minerd it realises the genesis block itself is not difficult enough...

[Mangalica]

I have 0 active connections to the network in the qt, even after 10 mins.
Other alt coin clients work fine.

[reb0rn21]

I tried direct mining for 2h at 600K, just had 12 rejected block and no accepted ... is that OK or mine config is bad?

[c4n10]

I have JunkCoin up and running on my windoze box, been mining it overnight and it's working ok (aside from the ridiculous reject and orphan rates).

Trying to compile on my linux box however gives this error:

Code:

main.cpp:17:53: warning: boost/random/uniform_int_distribution.hpp: No such file
 or directory
main.cpp: In function 'int generateMTRandom(int, int)':
main.cpp:836: error: 'mt19937' is not a member of 'boost::random'
main.cpp:836: error: expected ';' before 'gen'
main.cpp:837: error: 'uniform_int_distribution' is not a member of 'boost::rando
m'
main.cpp:837: error: expected primary-expression before '>' token
main.cpp:837: error: 'dist' was not declared in this scope
main.cpp:838: error: 'gen' was not declared in this scope
main.cpp: At global scope:
main.cpp:3360: warning: 'unsigned int ScanHash_CryptoPP(char*, char*, char*, cha
r*, unsigned int&)' defined but not used
make: *** [obj/main.o] Error 1

I have libboost-all-dev what am I missing...?

[tal]

0 connections

[shakezula]

I've got 20K of them, anyone want some? 5LTC per 1000 or take the whole 20K @100LTC and I'll give you 1500 bonus free!

[mtbitcoin]

Current Difficulty is 1, no more stales/orphans

[Ferdinandreyes]

Another one cryptocoin but...with what real benefit?

[Invest0r]

I'm working on a p2pool. Testing it and launching it soon.

[thaile4ever]

Another one cryptocoin but...with what real benefit?

None really, thus the name Junkcoin..

[monocolor]

For those get rejected blocks, are you using scrypt mining? remember this is litecoin based coin, and has to be mined with scrypt. My friend has been mining without scrypt, and he never got any accrpted blocked, once he corrected it, now he gets some blocks.

btw, still no pool on this one? sigh.

[js2082]

Very simple fix:

In main.cpp, change line 36 from

static CBigNum bnProofOfWorkLimit(~uint256(0) >> 20); // Junkcoin: starting difficulty is 1 / 2^20

to

static CBigNum bnProofOfWorkLimit(~uint256(0) >> 30); // Junkcoin: starting difficulty is 1 / 2^30

Rebuild, run, and the whole difficulty problem goes away a lot.

If it is still too easy maybe go with >> 32 or >> 34 or >> 36 or whatever ends up working nicely.

>> 30 hopefully at least give us a few seconds between blocks, hopefully even the full minute that is the target time we are aiming for. If more than that at first that is good, as it would give time for more people to get aboard during the first "day".

This only fixes the difficulty problem. The "random" rewards will still be totally predictable.

-MarkM-

EDIT: I looks like it will need the genesis block to be re-mined though, as I think with this fix the old low-difficulty genesis block hash is causing problems: for example minerd gets error 500 trying to mine, so maybe when it tries to get work for minerd it realises the genesis block itself is not difficult enough...

Mark, all the fixes you talked about are easy, but I don't want to (and can not) invalidate a p2p that is already out there. This is the nature of p2p. Let's talk offline on the improvements we can make. All you points are good ones.

[shakezula]

Willing to go 20K JKC for 50LTC if anyone's interested.

[js2082]

Willing to go 20K JKC for 50LTC if anyone's interested.

better start a new thread for trading 

[Petr1fied]

Mark, all the fixes you talked about are easy, but I don't want to (and can not) invalidate a p2p that is already out there. This is the nature of p2p. Let's talk offline on the improvements we can make. All you points are good ones.

Just relaunch under a different name/currency code and leave this one to fend for itself.

[MashRinx]

   - To encorage early adoption the coins per block is high for the first 4 days:
      - 1st day: 500 coins per block
      - 2nd day: 200 coins per block
      - 3rd/4th days: 100 coins per block
   - Starting 5th day, it will be 50 coins per block. It will also be halved about every two years (every 1036800 blocks).

The first 100 blocks are special blocks of 10000 coins each. They are premined for bounty purpose. The 1 million coins premined will be reserved as bounties for pools, exchanges, wikis, support groups, giveaways, faucets, etc, etc. If there are sufficient interests, we can form a committee to manage the fund, in which case I will hand over the 1 million reserved bounty (minus those spent - see below) to the committee.

For now, I offer the following bounties:

1st pool: 8000 JKC (name of the pool)
2nd pool: 5000 JKC (name of the pool)
3rd pool: 3000 JKC (name of the pool)
Junkcoin wiki or website: 10000 JKC

So lets see.  There was a 1,000,000 coin pre-mine to offer bounties, but currently 26,000 coins worth of bounties are listed.  The remainder 974,000 coins will go to the "Junk Coin Committee", right?  And with the current block reward, as stated in a post above is at 50 coins, that means you announced today and the rewards are already at day 5.  Oh... I see the explanation now:

Unfortunately due to the low starting diff, all bonus blocks are gone within a few hours of the launch. This serves a lesson for future coin makers to adjust the init diff, given today's huge computing power out there.


Oops, we already mined the day 1 - 4 coins because of the low starting difficulty before we announced.... Our bad!

No thanks...

[milly6]

make a pool please!

[spoid]

at least it's living up to its name.