9DCSgkf14cN9EMQxr3AupdbQ8LbzSsDzL8
Thanks you
one account please request once |
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This is simple. When the output of some tx is selected as an input for the transaction being posted the whole amount of that input is spend during this new tx. The necessary portion is sent to the destination address while the rest is sent to the local address that receives the change. Thus you see this big tx amount in the block. This is normal behavior of the standard wallet. Though, other implementations may differ in respect of where to send the change (they could send change back to the source address), but the full tx amount will be calculated the same way.
Thanks bee7, yes you are right. |
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Gonna give this a try, looks interesting enough. You never know, maybe I'll get lucky.
98R8bijhudBsizSusSbgeDJTr4tShTGhiX
Please request free coins at giveaway thread. |
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(snip)
If I am, I will try to adjust the number of PoS between PoW to match the target block time,
and reduce the coinage via hashrate increasing,
but, limit the number of PoS block between PoW as 12 or some number,
and, Adjust Diff for PoW,
Anyway, the software itself running good, actually, there is no issues.
In fact, I have trakced couple of pages of block lists, and confirmed.
Just only issue is the managing of PoS block is an issue,
it is unstable, and it shaking whole timeframe.
Especially, Grain retarget Diff by each PoW blocks,
Anyway, PoS generating timming is a kind of trouble maker
You can't fix number of PoS blocks between two PoW blocks, because the PoS is only generated if you have adequate coin-days (and minimum coin hold time). Also in order to generate PoS blocks, you need to run the client. |
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Happy New Year everyone! Very happy to see the thread is very active. I will catch up  |
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mkimid, thanks for your detailed analysis. I will do some more investigation and report back here.
Actually, today (from 4-6 hours ago), It become very stable, and the ratio between PoW and PoS, the number of PoW block is much higher than PoS, but, number of transactions between PoW and PoS are similar. and PoW block time is between 30~40s and Coinage is increased from 3.x to 4.x (because of PoW blocks are too much now?) I feel, when PoS blocks have generated too much, the PoW block time suddenly streched 15-20 minutes, and, Diff also shasking so much, Maybe when retarget Diff, need to use some kind of linear interpolation. At least, miner will see the actual Diff, and Hashrate. if just use the timer gap betwen block (PoW and PoS mostly), it should be happen mostly, I have started the mining with 2Mh/s in the morning (after capture the screen) I have got 4 accepted, 2 rejected, and 2 stales over 3 hours, and than, I have stopped for two hours, I got 5 acceptance, 0 rejected, and 0 stale over 2 hours (now) Maybe I have to run more longer time frame to findout, and coinblockchain.com/grain is not updating the block information from 300 blocks ago. AND, can I have a question ? in transaction windows, there are some coin addressed, I guess it is address for the minded coin. I have two addresses, actually, it is keep change when get the mined coin. Can I know what is this address ? Anyway, Thank you for much for your answers When there are a lot more pos blocks, the pow interval increases, this is in the algo: int64 nTargetSpacing = fProofOfStake? nStakeTargetSpacing : min(nTargetSpacingWorkMax, (int64) nStakeTargetSpacing * (1 + pindexLast->nHeight - pindexPrev->nHeight)); the target pow can go to as high as 12X normal. But that's very rare, you need something like at least 12 pos generated in between pow blocks. The reason for this algo is to maintain the network not overly busy which could cause orphan issues. While there are less pos generated, pow returns to its normal target of 30sec. |
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The diff adjusting code for Grain is the standard one from PPCoin, which is used by most pow/pos coins (with a few exceptions, such as Galaxycoin): unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfStake)
{
CBigNum bnTargetLimit = bnProofOfWorkLimit;
if(fProofOfStake)
{
bnTargetLimit = bnProofOfStakeLimit;
}
if (pindexLast == NULL)
return bnTargetLimit.GetCompact(); // genesis block
const CBlockIndex* pindexPrev = GetLastBlockIndex(pindexLast, fProofOfStake);
if (pindexPrev->pprev == NULL)
return bnTargetLimit.GetCompact(); // first block
const CBlockIndex* pindexPrevPrev = GetLastBlockIndex(pindexPrev->pprev, fProofOfStake);
if (pindexPrevPrev->pprev == NULL)
return bnTargetLimit.GetCompact(); // second block
int64 nActualSpacing = pindexPrev->GetBlockTime() - pindexPrevPrev->GetBlockTime();
CBigNum bnNew;
bnNew.SetCompact(pindexPrev->nBits);
int64 nTargetSpacing = fProofOfStake? nStakeTargetSpacing : min(nTargetSpacingWorkMax, (int64) nStakeTargetSpacing * (1 + pindexLast->nHeight - pindexPrev->nHeight));
int64 nInterval = nTargetTimespan / nTargetSpacing;
bnNew *= ((nInterval - 1) * nTargetSpacing + nActualSpacing + nActualSpacing);
bnNew /= ((nInterval + 1) * nTargetSpacing);
if (bnNew > bnTargetLimit)
bnNew = bnTargetLimit;
return bnNew.GetCompact();
}
When there are a lot of pos blocks, the pow block can be generated slower, but this is the normal behavior. The algorithm side I don't see issues. But sometimes I see the block time is out of sequence. This probably the reason why sometimes we see the diff behave very strangely. I don't know why/how the block time can become incorrect, maybe some network clock issue? I don't know now. BTW, I saw some other pow/pos coin behave the same. For example, a few weeks ago, when I tried to mine Lucky7Coin, I see its diff very low, apparently the pos diff, and when I look into somewhat details, I found that the block time is completely wrong, which caused the diff adjusting algorithm to give wrong diffs (it has the same diff algo as PPCoin, I think). |
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The diff seems behave strangely for a few blocks (pretty high), then return to normal. Now the diff seems right. I don't know why it jumped so high at one point. Will keep watching it.
Hi, Bosian How are you ? I have capature a screen to explain what is happening now. 1. I am living in NJ, USA : EST TIME ZONE so, Please, just compare the minutes and seconds only (not hours) 2. in BFGMiner Screen The network speed is going up, and hit Diff 4 and, keep couple of hours, and than, it is going down to Diff 1 and, this process is keep doing again This kind of pattern is happen always, my means, each block will have the difference Diff, and, It affect on reject (?, maybe, I am not sure, just guess) and, it affect on stale (my means, the keep chaing of time... anyway, sorry for too stupid idea) 3. The networkhashs from Grain-QT 1.2 (actually, 1.1 also same) at block #60327, at block #60328, The hash rate has been decreased dramatically, and Diff also have been changed. Technically, something wrong it is hard to believe the actual network speed is changed like this 4. Check the time between Grain-QT 1.2 and Minder * I have used 1s scan time, and 1s logging time for miner * I have put, getminerinfo every 10 seconds, to find the changing point -> Actually, Miner Detect the change of diffculty much earler than QT -> The changing point from 4 to 1 (in Miner) xx:08:08 (in QT) xx:08:53 -> I have thought, need one more block to update the current hashrate in QT, yes, it is right, but, sometime, it is happen over couple of blocks (After couple of new block detected on network message) Anyway, I am not sure, what is the problem, maybe, It is just my computer problem, or maybe, it is just my network problem, But, only happen in GrainCoin I have tried to with QT1.1/1.2, Actually, when blockchain explorer has recovered, I have tracked block chains, and, I found it is matched and, I feel, there are too many PoS blocks via PoW (the diff on screen and actual diff is too much difference and growing more and more) I know it is a technical choice, but, it makes less attactive for this coin for mining. In fact, it is why there is not many miners interest on mining PoW/PoS type even it is much more advanced but too early to accepted in this area (just my person opinion)  p/s : sorry for bothering you again, I like graincoin too much ~ that is why I have too many stupid question, please forgive me. mkimid, thanks for your detailed analysis. I will do some more investigation and report back here. |
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The diff seems behave strangely for a few blocks (pretty high), then return to normal. Now the diff seems right. I don't know why it jumped so high at one point. Will keep watching it.
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Maybe the people wake up and start their Grain coin client and this generates a shitload of PoS block and drives the PoW difficulty so high.  You can't look at one block. You need to look at an interval of 1-2 days and count the average block time for PoW. It should be pretty close to the target block time. Seriously, i have got the similar thought before, If make averaging some days, it should be saturated on the target block time. But, it is keep shaking periodically with high amplitude, Anyway, it will disturbing the miner and efficiency, Thank you for your answers And sorry for so much bothering ~ # time stamp for 59289/59288 were reversed, it is not only one ^^ You are welcome mkimid. Yes I also notice the diff there in the blockexplorer is weird, maybe there's a bug? Let me check on cgminer, as I never saw this kind of things before. Cgminer gets the info directly from the network, and should be reliable. If I do see this in cgminer, then there may be a bug in the code (I'd be surprised as this part of the code is the same as all other PoW/PoS coins, and I did not hear problems before). |
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Can I have a question ?
While mining why the difficulty has been changing continuously from 0 ~ 8, and keep looping, my hash rate is around 650k. But,it has been stabled today.
mkimid, there are two difficulties here: PoW difficulty and PoS difficulty. PoS diff is very low (close to zero - so that everyone can generate PoS blocks from his client), this is by design. PoW diff, is what you see when you mine with cgminer, for example. PoW diff is very consistent, varies from 0.3 to 0.6, or whatever the range. So when you look at the diff, what you care about is the PoW diff. Look at the block explorer, and look only the diffs for the PoW blocks, you will see they are pretty consistent, and varies smoothly according to the real block time of the previous block. http://coinblockchain.com/grain/Thank your for your explaination, Actually, i have experienced last saturday and sunday, If you see the blocks (57814, 57665, 56993, ..) and near by, Relatively, higher number of diff. Started with diff 0 (PoW, cgminer), it is increaed to 6 ~ 8 And than, return to some number such as 3-4 And increased again to 6-7 And than, return to some number ... I just felt kind of something is happen, and it is not smooth .. Anyway, today, it is much better than before,
Maybe some hidden factors are removed/overcomed/fixed
http://coinblockchain.com/grain/block/000000000c1c41158bc88e7e5a3d22c3f6aa4e33a9d716da2c5da69258e27479Similar with before, Block #59289, 59288 :: checked the time stamp Maybe the people wake up and start their Grain coin client and this generates a shitload of PoS block and drives the PoW difficulty so high. You can't look at one block. You need to look at an interval of 1-2 days and count the average block time for PoW. It should be pretty close to the target block time. |
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Can I have a question ?
While mining why the difficulty has been changing continuously from 0 ~ 8, and keep looping, my hash rate is around 650k. But,it has been stabled today.
mkimid, there are two difficulties here: PoW difficulty and PoS difficulty. PoS diff is very low (close to zero - so that everyone can generate PoS blocks from his client), this is by design. PoW diff, is what you see when you mine with cgminer, for example. PoW diff is very consistent, varies from 0.3 to 0.6, or whatever the range. So when you look at the diff, what you care about is the PoW diff. Look at the block explorer, and look only the diffs for the PoW blocks, you will see they are pretty consistent, and varies smoothly according to the real block time of the previous block. http://coinblockchain.com/grain/Thank your for your explaination, Actually, i have experienced last saturday and sunday, If you see the blocks (57814, 57665, 56993, ..) and near by, Relatively, higher number of diff. Started with diff 0 (PoW, cgminer), it is increaed to 6 ~ 8 And than, return to some number such as 3-4 And increased again to 6-7 And than, return to some number ... I just felt kind of something is happen, and it is not smooth .. Anyway, today, it is much better than before,
Maybe some hidden factors are removed/overcomed/fixed
http://coinblockchain.com/grain/block/000000000c1c41158bc88e7e5a3d22c3f6aa4e33a9d716da2c5da69258e27479Similar with before, The PoW diff adjusting algorithm works on the last real block time, it is the same as PPCoin diff adjusting algorithm (almost all the PoW/PoS coins use the same algorithm). This algorithm limits the max adjustment to about 2 or 1/2 each time (depends on some detailed parameters). So sometimes people (especially those with high hashrate rig) try to profit from it. What they do is to put in all their hashpower (could be close to 50% of the network hash, if not too many people are mining it at that time), get one block quickly (maybe in 10 sec instead of the average 30 sec), push the diff to about X2 for the next block, then move their rig or rigs to another coin, now the diff is high for the rest of the people, it may take say 2-3 mins to get a block, and because 2-3 mins >> 30 sec, the diff will be halved for the following block, then these guys jump back in and get another block, etc. This way, they enjoy 10 sec a block instead of the average 30. Sometimes they do that also intending to jam the coin, but with PPCoin algorithm, they can't jam it (I saw some time ago they jammed infinitecoin this way, then IFC moved to PPCoin algorithm for diff adjusting, and everything is smooth since then). Only when enough people are mining, that a single or a group of people with big rig can no longer do this, because of the total hashpower is much higher than theirs. |
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You can also set a reserve amount if you always want a certain amount to be available.
Yes good point, forget about it |
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Can I have a question ?
While mining why the difficulty has been changing continuously from 0 ~ 8, and keep looping, my hash rate is around 650k. But,it has been stabled today.
mkimid, there are two difficulties here: PoW difficulty and PoS difficulty. PoS diff is very low (close to zero - so that everyone can generate PoS blocks from his client), this is by design. PoW diff, is what you see when you mine with cgminer, for example. PoW diff is very consistent, varies from 0.3 to 0.6, or whatever the range. So when you look at the diff, what you care about is the PoW diff. Look at the block explorer, and look only the diffs for the PoW blocks, you will see they are pretty consistent, and varies smoothly according to the real block time of the previous block. http://coinblockchain.com/grain/
Can I have a question ?
While mining why the difficulty has been changing continuously from 0 ~ 8, and keep looping, my hash rate is around 650k. But,it has been stabled today.
this is something being looked at and see if it is natural or otherwise a problem. No Jollyburner. This is not a problem, look at my explanation above. I asked this earlier but didn't get a response.
I've mined a bit here and there and I have 20000+ GRA in my wallet... but now almost 15k of that is stuck in something called "Stake" and evidently isn't part of my available balance, even though all the transactions have thousands of confirmations.
What does this mean, and how do I get the coins out of "Stake" and into my account balance?
The coins are moved into stake while the POS (interest) is calculated and then it will move back to your available balance How long are they held? How often does it happen and how do I stop it? And what if I need the coins right away? The PoS blocks will be held for the same amount of time as minted PoW blocks, for Grain it is 50 confirmations (i.e. 50 block times). See OP for the coin spec: - 50 confirmations for minted blocks How often the PoS blocks generated? It depends on how long you hold your coins. Typically, after 10-15 days holding, the pos blocks will be generated. If you don't want PoS block (I doubt why you don't want it, as it gives you free coins), the easiest way is to encrypt your wallet with paraphrase (don't forget the paraphrase, or you will lose the wallet), if the wallet is locked, the pos will not be generated. Another way to avoid pos blocks is to transfer the amount to another wallet, then transfer back. By transferring, you lost all the coin-days you accumulated. You basically reset the coin-day and it will restart from zero. We welcome all your questions. Please, ask them in a constructive way, so we keep a good environment in this community. We are more than happy to answer all your questions.  |
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I donnt understand, on the blocks hes saying, why is the tx so huge?
is 192 million coins the total amount generated so far? it must be more than that...
I don't think there is anything weird going on I just want to learn what is happening.
is it a transfer that is huge or something to do with PoS generation?
192 mil is in my account for giveaway and bounties. I don't know why sometimes I sent out a bounty, the whole amount was in the block. Nothing moved except the bounty sent out. If you look at block 58833, it's a bounty of 100K I sent to d-trix. I don't know why the whole amount move from one address to another. It is still in the same wallet, no address is changed. Those 5K-20K are giveaways. https://bitcointalk.org/index.php?topic=389595.0 BTW, mkimid, remove your red color, and don't act like a scammer. If you have questions, post here, and your questions will be answered. |
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mkimid, I see some pos coins generated... you better learn what is pos before posting stupid things like this in big red.
Aren't block 58809 and 58808 PoW blocks? The generated coins in each block is added to the "Outstanding" count of the total coins generated so far, so please do a diff to find out what are the coins generated from that block. You can then go into the block to see the details (PoW, PoS etc). One block may contain both PoW and PoS subsections. I'd not post that stupid big red before understanding how the coins and its block work. Any questions please post here. Fud/scams will be ignored. |
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I asked this earlier but didn't get a response.
I've mined a bit here and there and I have 20000+ GRA in my wallet... but now almost 15k of that is stuck in something called "Stake" and evidently isn't part of my available balance, even though all the transactions have thousands of confirmations.
What does this mean, and how do I get the coins out of "Stake" and into my account balance?
I did answer that question, let me find the earlier post and put the link here. |
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