darkgold https://bitcointalk.org/index.php?topic=868354.0

Heritage:

Problems:

* EXTREME: 200K coins are premined, not for ICO, and disclosed in a very difficult to read way (they just say how many blocks are premined)
** Even if disclosed, this is an extremely large premine of around 14% (including the 152 blocks, and excluding the ICO portion)
* MAJOR: 152 normal reward (non-ICO) blocks were premined and undisclosed, yielding 1,520 coins

* MODERATE: ICO funds/premine was mined in such a way that PoS staking inflated the actual amount mined
** The ICO funds 800K actually ended up being around 800,600 coins.
** Can't tell how much BTC 600 coins actually adds up to, since I can't determine the price per coin from the announcement thread
* MINOR: ICO/premine funds have not been checkpointed
* MODERATE: The sync checkpoint key appears to be valid, but no sync checkpoint node appears to be running on the network
** It is considered somewhat insecure to run a PoS coin without sync checkpoints
* MINOR: "Total Coins: 50M" in ANN is wrong. Total coins is infinite, total PoW coins is 1,369,590.0

Notes:

genesis seed is news event

A lot of people concerned about PoS weight and amount of coins minted by PoS on the ICO funds.
Looking at the ratio of PoS blocks and average payout, it's at most 800 coins.. probably more like 600 coins

Also some concern about moneysupply not including premine. I see no evidence of this unless github was updated before I could review it

Watermarks: uint64_t, pos, drm-like, devcoin



DEV: If you'd like to get rid of these extra coins to invalidate these extreme problems, please send them to an appropriate burn address: https://gist.github.com/Earlz/de3cc5f6ee85c7a69d53 ... Afterwards, if you'd like me to validate that you properly burned the coins and update the review, please PM me with txid and relevant info

Bounties updated, if you can make some, get some !

BOUNTIES

My thoughts are that cgminer 3.72 was the last official release of it that supported GPU's, that was back during the 13.x AMD driver release, and there has been pretty serious performance gains with the latest drivers and only sgminer seems to have kept up with that.  I would think that it would be quicker to transform sph-sgminer to a 320bit check rather than reinvent the wheel with cgminer.  But you can probably get more than one card up if you run the 3.72 binaries but not sure if dev made a change to them for his kernel.

 cgminer version 3.7.5 - Started: [2014-12-06 19:57:09]
--------------------------------------------------------------------------------
 (5s):145.5K (avg):80.60Kh/s | A:0  R:0  HW:0  WU:0.4/m
 ST: 3  SS: 0  NB: 4  LW: 0  GF: 9  RF: 0
 Connected to 127.0.0.1 diff 103 without LP as user phugawee
 Block: 9c47f2240b...  Diff:2  Started: [20:05:37]  Best share: 19
--------------------------------------------------------------------------------
 [P]ool management [G]PU management ettings [D]isplay options [Q]uit
 GPU 0:  78.0C 3071RPM | 145.4K/81.00Kh/s | A:0 R:0 HW:0 WU:0.4/m I:-10
 GPU 1:  44.0C 1783RPM | OFF   / 0.000h/s | A:0 R:0 HW:0 WU:0.0/m I: 0
--------------------------------------------------------------------------------

 [2014-12-06 19:59:37] Network diff set to 2
 [2014-12-06 19:59:37] New block detected on network
 [2014-12-06 19:59:40] Found block for pool 0!
 [2014-12-06 20:01:10] Waiting for work from Pool 0
 [2014-12-06 20:02:37] Network diff set to 2
 [2014-12-06 20:02:37] New block detected on network
 [2014-12-06 20:02:38] Found block for pool 0!
 [2014-12-06 20:02:57] Found block for pool 0!
 [2014-12-06 20:03:26] Found block for pool 0!
 [2014-12-06 20:04:10] Waiting for work from Pool 0
 [2014-12-06 20:05:37] Network diff set to 2
 [2014-12-06 20:05:37] New block detected on network

Three in a row!

ROFL...

Your not the only one this is happening with.

Go to command prompt

cd C:\Program Files (x86)\Kryptohash Core 64-bit

enter

kryptohash-qt.exe --reindex

enter

you might want to add a -printtoconsole to see what it's doing, it takes around 5 minutes. After it updates the whole blockchain you can stop it and restart the gui wallet.

There was one wallet that had corrupted blockchain after reindex but it was empty so i just wiped the directory and re-downloaded it. Not sure how to work that out if you have some coins in the wallet 

No, you need to open a command prompt, find the executable and run it with the parameter

kryptohash-qt.exe --reindex

New Wallet version 0.3.5 MANDATORY UPGRADE

https://github.com/kryptohash/kryptohash/releases/tag/v0.3.5

VERY IMPORTANT

1) Backup your wallet.dat file. 
2) Execute kryptohashd or kryptohash-qt with the --reindex  parameter for ONE TIME to allow the wallet to fork correctly at block 5098.
 

I see.. then.. what ? This is the end for this coin ? 

Guys, at the current Diff, it is going to take days to reach Block 5200 where it is expected to retarget to a lower value.

I'm going to have to create a new wallet version with a hard fork at block 5098 and get a lower retarget value for a brand new block 5100.

If you have block 5103 and the hash is 0000000046017B173A6680B24C496C0D8CF21075E933D40048B1AE57443B6DF93F616A7D4298ED9 5, you are on the right tip of the blockchain