TRC ZERO CONFIRMATIONS!? What is going on?

nameface

sr. member

Activity: 406

Merit: 250

Quote from: celkaris on April 08, 2013, 12:19:44 PM

if there are no miners (or just a few), whatever the efforts the developers put into their fixes, anyone with a few GPUs can achieve the same ; increase diff then leave, whatever chain you choose.

market & profitability sites also helped getting to this point ; any other chain barely above 100%, with a relatively correct current hashrate is now exposed to the same problem : miners will just switch to the greenest chain on those sites, progressively leaving 'your' chain without any miner, making the thing unminable for others...

So my coins (and I'm sure the coins of many others) are in perpetual limbo? This keeps getting worse.

celkaris

full member

Activity: 148

Merit: 100

if there are no miners (or just a few), whatever the efforts the developers put into their fixes, anyone with a few GPUs can achieve the same ; increase diff then leave, whatever chain you choose.

market & profitability sites also helped getting to this point ; any other chain barely above 100%, with a relatively correct current hashrate is now exposed to the same problem : miners will just switch to the greenest chain on those sites, progressively leaving 'your' chain without any miner, making the thing unminable for others...

spacegoat

member

Activity: 112

Merit: 10

We are connected. you are me I am you.

I was there for the first asic 51% lag,

terracoin was fine, then a guy came on one of the forums and said sorry I put my asic on it for a little while... and it lagged for half a day...

this is the second time. sunny king knows more than me, but I'd never promote inflation, lots of those ideas around ppc goes against my senses.

terracoin is sketch though.

even if they put fixes into the terracoin algorhythm will it actually protect against asics? the problem needs to be fixed and peer reviewed if you want anyone to take this coin seriously

dust

hero member

Activity: 840

Merit: 1000

Quote from: Sunny King on April 07, 2013, 02:58:10 PM

Quote from: tacotime on April 07, 2013, 01:51:43 PM

Did Sunny King's difficulty algorithm not fix the chain? I think he extended it to 12 or 24 hours or something like that, that is, these are the timespans from which to calculate the exponential weight averages from, but that's still a fairly short period of time and you can attack by mining like crazy for a couple hours and then hopping back on a while later.

I did not fix anything in terracoin, I only told the dev about the 51% difficulty collapsing vulnerability.

In an attempt of dealing with the oscillation exploit you proposed the Terracoin dev chose to implement a difficulty adjustment with averaging interval of 720 blocks while keeping the adjustment interval still at 30 blocks. This approach turned out to be a wild amplifier that swings difficulty through 5 orders of magnitude back and forth. The fault lies mainly not with ASIC miners but the faulty adjustment algorithm.

This is what happens when fixes are quickly pushed out without any review.

Vladimir

hero member

Activity: 812

Merit: 1001

-

ASIC bomb

nameface

sr. member

Activity: 406

Merit: 250

My TRC still hasn't been sent, almost 24hrs later...

tacotime

legendary

Activity: 1484

Merit: 1005

shhhhh

CoinHoarder

legendary

Activity: 1484

Merit: 1026

In Cryptocoins I Trust

Quote from: crazy_rabbit on April 07, 2013, 03:20:53 PM

Quote from: Sunny King on April 07, 2013, 02:58:10 PM

Quote from: tacotime on April 07, 2013, 01:51:43 PM

Did Sunny King's difficulty algorithm not fix the chain? I think he extended it to 12 or 24 hours or something like that, that is, these are the timespans from which to calculate the exponential weight averages from, but that's still a fairly short period of time and you can attack by mining like crazy for a couple hours and then hopping back on a while later.

I did not fix anything in terracoin, I only told the dev about the 51% difficulty collapsing vulnerability.

In an attempt of dealing with the oscillation exploit you proposed the Terracoin dev chose to implement a difficulty adjustment with averaging interval of 720 blocks while keeping the adjustment interval still at 30 blocks. This approach turned out to be a wild amplifier that swings difficulty through 5 orders of magnitude back and forth. The fault lies mainly not with ASIC miners but the faulty adjustment algorithm.

Thanks Tacotime! Sheezh.

;-)

It's all your fault Taco Cheesy

superfastkyle

sr. member

Activity: 437

Merit: 250

coinotron is still solving 90% of the blocks if they are on a block for several hours don't expect a confirm until they do

crazy_rabbit

legendary

Activity: 1204

Merit: 1001

RUM AND CARROTS: A PIRATE LIFE FOR ME

Quote from: Sunny King on April 07, 2013, 02:58:10 PM

Quote from: tacotime on April 07, 2013, 01:51:43 PM

Did Sunny King's difficulty algorithm not fix the chain? I think he extended it to 12 or 24 hours or something like that, that is, these are the timespans from which to calculate the exponential weight averages from, but that's still a fairly short period of time and you can attack by mining like crazy for a couple hours and then hopping back on a while later.

I did not fix anything in terracoin, I only told the dev about the 51% difficulty collapsing vulnerability.

In an attempt of dealing with the oscillation exploit you proposed the Terracoin dev chose to implement a difficulty adjustment with averaging interval of 720 blocks while keeping the adjustment interval still at 30 blocks. This approach turned out to be a wild amplifier that swings difficulty through 5 orders of magnitude back and forth. The fault lies mainly not with ASIC miners but the faulty adjustment algorithm.

Thanks Tacotime! Sheezh.

;-)

Sunny King

legendary

Activity: 1205

Merit: 1010

Quote from: tacotime on April 07, 2013, 01:51:43 PM

Did Sunny King's difficulty algorithm not fix the chain? I think he extended it to 12 or 24 hours or something like that, that is, these are the timespans from which to calculate the exponential weight averages from, but that's still a fairly short period of time and you can attack by mining like crazy for a couple hours and then hopping back on a while later.

I did not fix anything in terracoin, I only told the dev about the 51% difficulty collapsing vulnerability.

In an attempt of dealing with the oscillation exploit you proposed the Terracoin dev chose to implement a difficulty adjustment with averaging interval of 720 blocks while keeping the adjustment interval still at 30 blocks. This approach turned out to be a wild amplifier that swings difficulty through 5 orders of magnitude back and forth. The fault lies mainly not with ASIC miners but the faulty adjustment algorithm.

FJBourne

full member

Activity: 138

Merit: 100

Confirming now, albeit slowly. Definitely improving

Tea, Towels, Vogons etc.

newbie

Activity: 20

Merit: 0

GROOOOOAN! I knew I should've converted back to LTC to transfer!

tacotime

legendary

Activity: 1484

Merit: 1005

Quote from: master-P on April 07, 2013, 01:49:25 PM

There's been a lot of threads on this over the past few days. Basically, people with large hashing power are exploiting the quick confirmation times to bring the network to a halt. So no new blocks are being mined and transactions aren't going through.

Did Sunny King's difficulty algorithm not fix the chain? I think he extended it to 12 or 24 hours or something like that, that is, these are the timespans from which to calculate the exponential weight averages from, but that's still a fairly short period of time and you can attack by mining like crazy for a couple hours and then hopping back on a while later.

master-P

hero member

Activity: 868

Merit: 1001

https://keybase.io/masterp FREE Escrow Service

There's been a lot of threads on this over the past few days. Basically, people with large hashing power are exploiting the quick confirmation times to bring the network to a halt. So no new blocks are being mined and transactions aren't going through.

nameface

sr. member

Activity: 406

Merit: 250

I sent some TRC hours ago and have yet to receive my first confirmation. What gives?

Topic: TRC ZERO CONFIRMATIONS!? What is going on? (Read 1487 times)