Difficulty Rate now exceeds Block production Rate 13.08.2013
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The Feathercoin Hash rate over the weekend, since Thursday 9.8.2013, has increased the difficulty to 241. The current hash rate per day for Monday up to 19:00 Block time is producing 182 blocks per day.
Difficulty Rate now exceeds Block production Rate. 13.08.2013. That is a quarter of the payments there should be for the current hash rate.
Lets hope there is a Tuesday pick up like last week and it doesn’t indicate a repeat of May June.
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Feathercoin Block production Charts 14th August 2013.
Its a bit more complex, but, I’ve added more detail to the 7 Day average line, so it shows the 7 day rolling average for July and August. The Bar Graphs give an indication of the correlation between Weekly and Monthly average block production, difficulty and the required block production specification…
From these chart I have 4 observations.
1. The Hash rate is still highly variable over the week. The 44% difficulty is still being successful in damping the effects of variable Hash rate on Block production, but committed miners are still being , quite heavily, underpaid.
2. It still seems virtually certain that a three level average taking into account short term, medium, and long term variations would smooth out those changes further. It could also make an deliberate attackers job more difficult and it would be possible prevent some attacks by measuring compliance to the difficulty algorithm for confirmations.
3. The 3 time scales of variation, are short term 10 -100 Blocks, Medium term 500 -1000 Blocks and long term 5000 - 10000 Blocks. More analysis would be required to optimise the short term component.
4. We have seen a base level of 2.5 G Hash/sec steady committed miners for Feathercoin who have kept the network going despite the Swing up to over 5.6 GHash/sec over the last week or so. Generally at the very slightly higher committed Hash rate we are now very difficult to attack. I have noticed that the 3 GHash/Sec Increase in Feathercoin is always accompanied by a 2 to 3 GHash/s decrease in Litecoin mining. i.e We are probably being joined by a significant proportion (5-10%) of the Litecoin Miners over the Weekends. None of the other coins have enough Hash power to produce such Hash changes, I did not notice an accompanied change in Bitcoin.
I’d be interested in a more in depth analysis of that, I’ve used up all my time.
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I have to confess I don’t really understand it but I really appreciate your analysis.
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I have chosen the charts to best show how the Feathercoin is performing against the specified block production. Of my charts, these showed best how well the difficulty setting algorithm is working, and is also indicative of the security and fairness of the coin.
The charts show the Daily variation in Block production, The Weekly average, and the Average for the Month, With the developing average for August.
The analysis for July, compared to May June, showed:
1. The Block production rate was still falling short for the month.
2. The Block rate was highly variable over a week ( -
I’ve done a Block production chart up to Friday, and added a bit more / better description. It compresses a lot of info.
The difficulty gives an indication of the Hash Rate for the previous day, and it quite interesting to see the patterns emerging.
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I selected an interesting Feathercoin event to do a more in depth Block production short term analysis.
On Saturday 8th June 2013 the daily charts showed a big spike in Block production when the difficulty decreased after being high for a long period.
This chart zooms into the variation per Hour. The chart shows the extent of the increase in Hash rate at the peak 20:00 Saturday. The length of the initial peak and the time before the real network was allowed back.
I’ve done the chart without any pre-conceived ideas, and will be interested to look up what the forum said was happening at the time.
I haven’t looked in detail but I suspect the real attack happened just before the end, and they managed to add their own blockchain by back dating the blocks. I seem to remember at the time I had my real coins, then they were orphaned and disappeared from my wallet.
This chart covering enough of the event so it is interesting to look at now, so i’ve uploaded it.
I’m going to add a few more hours and update it later to see if there are any “after effects”.
I’ll do another “Hour analysis” if anyone’s got another event needs a closer look at, but it’s a lot of work, manually.
However, I think it could be a good chart to show live on the forum, I think the chart shows community action helped us deflect a problem.
Also, been looking at a couple of block analysis tools for Bitcoin on Github which could be ported to Feathercoin, I was wondering if anyone’s already “doing that”?
I’ve added another Hourly chart for 18th July 2013 the most recent peak in Feathercoin Block chain over production.
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