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Topic: TERRACOIN ATTACK OVER 1.2TH ATTACK CONFIRMD - page 6. (Read 28159 times)

sr. member
Activity: 437
Merit: 250
what block am I suppose to be on I'm showing 175038?
hero member
Activity: 556
Merit: 500
Next difficulties will be:

304455
348553
382574
404237
412645
408217
392442
367529
336037
300544

how do you get those? that means a block every few hrs
member
Activity: 60
Merit: 10
i guess that attacker - now unable to lower difficulty at will - made it skyrocket to harm the currency Sad

Things will probably stabilize, supposing network gets a constant hashrate, and will progressively return to normal difficulties ; time will tell
hero member
Activity: 556
Merit: 500
17 minutes between block 37 and 38, 30 minutes since 38 and still waiting for 39... experts? what's your take? what happened? price on btce has risen from 137 to 143, which is to be taken as a positive...
hero member
Activity: 556
Merit: 500
new block 038 difficulty 253k... weird, isn't it? what's happening, any expert to answer this question?
hero member
Activity: 556
Merit: 500
seems difficulty has overshot the other way, 198k and blockchain stuck at 175037
hero member
Activity: 556
Merit: 500
we just hit block 175000
now? blocks seem to be generated at same high pace... difficulty is already on the rise though
how long will it take to get back to normal?
legendary
Activity: 1820
Merit: 1001
sr. member
Activity: 314
Merit: 250
:)
So the only other real answer until block 175k is to have an additional call to 1000-3000 GH come online and mitigate his 'twisting' of the block chain from his >51% manipulation of the current chain?
legendary
Activity: 1386
Merit: 1009
So because not enough people found it worthwhile to put their hashing power towards protecting TRC, it was possible for one person to get more than 51% thus now controlling the rules of the coin. This person then decided that the old difficulty adjustment rule was something he wanted to change and did so. Guess what, nothing wrong has happened here. He threw a lot of hashing power towards TRC because he found it more valueable then everyone else and took advantage of the rules og the game.
He just wanted to earn profits, don't overestimate Wink
newbie
Activity: 59
Merit: 0
Well that's a point of view.

Another example : someone hack your own bank with a weakness in your computer. Theft your saving. Then you will have same point of view about exploid of weakness in your computer? Or so I could say as you : dont let in your bank account what you can afford to lose?

Point of views are different according what we own or not in a quoted situation. I agree with you about that.

It is not a point of view, it is the rules of the game. Let me explain why there is a big difference. .

You do not seem to understand that the only rule when it comes to cryptos is that whoever control 51% of the network makes the rules. Whenever you put any money into a crypto that is not proof of stake you basically agree to this rule. Hope you understand that, because it is a very important point of how cryptos work.

So because not enough people found it worthwhile to put their hashing power towards protecting TRC, it was possible for one person to get more than 51% thus now controlling the rules of the coin. This person then decided that the old difficulty adjustment rule was something he wanted to change and did so. Guess what, nothing wrong has happened here. He threw a lot of hashing power towards TRC because he found it more valueable then everyone else and took advantage of the rules og the game.
hero member
Activity: 556
Merit: 500
I wonder what happens when #175000 is reached. Attacker seems to have a lot of power.
How long is the sampling interval for difficulty changes?

I'm asking the same questions, 800 block to 175000, then what? scenarios? can some expert outline some possible outcomes?
legendary
Activity: 980
Merit: 1000
Need a campaign manager? PM me
Can anybody give a small summary of what happened? Seems confusing at the moment. I have some TRCs and am wondering whether they will be worthless.
sr. member
Activity: 428
Merit: 250
you guys realise chain hopping has been happening since before NMC was merge mined with BTC? I am sure some of you have done it yourselves (actually people in this thread have admitted to it)- so this guy has lots more hashpower than you? ....bummer
ASIC were always going to screw up sha-256 alt coins - this is no surprise.Miners were working out which alt coins would be viable to mine ASICs on before deliveries even started.

I don't see evidence of an attack, just a miner doing what many others have been for years, what makes him unusual is the size of the hashrate - don't worry there will be more and more like him as more ASIC devices get delivered.

You don't see evidence? timestamp... Yes you need glasses

Thanks for support to attacker
sr. member
Activity: 322
Merit: 250
Supersonic
To think of it in another way.... 3600 GH/s is approximately what one would get from a single batch of Avalon chip orders... and I think first deliveries started couple of weeks ago.
legendary
Activity: 1064
Merit: 1000
Just a quick FYI:

The daemon on CCE has been updated to the new version on Github.

legendary
Activity: 1386
Merit: 1009
This is the attacker's address.
Code:
1PAnMKuTs9R4U9FF7xdQSmQc655d2r9zeB
And here you can see it's current balance: http://trc.cryptocoinexplorer.com/chain/Terracoin/q/addressbalance/1PAnMKuTs9R4U9FF7xdQSmQc655d2r9zeB
It's 131119.8705 currently.

As an attacker seems to have enough hashrate for 51% he can continue manipulating difficulty even after halving is removed.
The easiest way to lower difficulty is creating a specific chain of blocks. As actual spacing is limited to 1.5 * 2min = 3 minutes when calculating EMA, an attacker needs to make every second block 3 min in the future from previous, and the make next block in the past. By creating such a chain of blocks where even blocks are in th future and uneven are in the past he can manupulate the difficulty down.

This is because when actual spacing between blocks is negative, terracoin assumes it to be 2 min so it doesn't affect retargeting.
Look here if you want:
https://github.com/terracoin/terracoin/blob/master/src/main.cpp#L1160

PS. It's what I got from sources, if I am mistaken please let me know.
sr. member
Activity: 434
Merit: 250
I would agree if he wouldn't do 51%(80% in his case) attack and timewarp attack...

I don't trust the network hash figures from the explorer at the moment given the way he can mine blocks at a different difficulty than the rest of us. A 51% attack on bitcoin, for instance, still has to obey the difficulty rules.
sr. member
Activity: 434
Merit: 250
you guys realise chain hopping has been happening since before NMC was merge mined with BTC? I am sure some of you have done it yourselves (actually people in this thread have admitted to it)- so this guy has lots more hashpower than you? ....bummer

TRC had some problems early in the year with an ASIC coming in and out of the chain and it was dealt with. This has nothing to do with that, and how you cannot see "evidence of an attack" when there are hundreds of blocks introduced on the blockchain simultaneously with invalid difficulties because of the timestamp/timewarp attack boggles my mind.
hero member
Activity: 826
Merit: 1000
you guys realise chain hopping has been happening since before NMC was merge mined with BTC? I am sure some of you have done it yourselves (actually people in this thread have admitted to it)- so this guy has lots more hashpower than you? ....bummer
ASIC were always going to screw up sha-256 alt coins - this is no surprise.Miners were working out which alt coins would be viable to mine ASICs on before deliveries even started.

I don't see evidence of an attack, just a miner doing what many others have been for years, what makes him unusual is the size of the hashrate - don't worry there will be more and more like him as more ASIC devices get delivered.
I would agree if he wouldn't do 51%(80% in his case) attack and timewarp attack...
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