[ANN][XMY] Myriad | Multi-Algo, Fair, Secure

[ahmed_bodi]

whats the p2pool bounty for? id be willing to share

[aakashkumar]

Which algo keeps the GPUs (R9-280x) coolest..Qubit/Groestl/Skein??

Could someone who tested all of them please share.....

Skein

[ivanlabrie]

Which algo keeps the GPUs (R9-280x) coolest..Qubit/Groestl/Skein??

Could someone who tested all of them please share.....

Sure, I did try skein and groestl. Qubit never worked quite right (pool's were rejecting shares).

I'll post screenshots after mining for a minute in a sec.

EDIT: someone should fix the OP...the qubit gpu miner posted there gives me HW only mining myriad. Using sph-sgminer everything works fine, same settings.

Groestl comes first, Qubit second, Skein third and Scrypt is the hottest naturally.
Now, power usage, I have no way to test it but I'd be inclined to think Groestl draws less power (it also runs just as fast on a 5870).

Groestl

Qubit

Skein

Scrypt


(I don't mine scrypt at all btw...not anymore)

[lunswor]

Guys, US Stratum is now live at cryptorus.com Make sure you point your miners at both stratums as a failover.

[Jacques21]

Does anyone else mining on poolerino sometimes get that it shows 0 hashrate 0 share rate and then after a while it shows correctly then goes back to 0 for a while?

try a different pool. im mining SHA256 on there and i get a lot of rejects.. im switching to another pool tonight

Did you try the other pool ?

You can also try our USA or ASIA Stratums if your connection to our EU server isnt good what explains the rejects.

Thanks, i see my miner stops mining every now and then. im gonna upgrade the firmware now and see if that fixes my problem, also getting alot of HW errors today.

Will be back mining at poolerino asap for sure, awesome pool.

[lunswor]

Which algo keeps the GPUs (R9-280x) coolest..Qubit/Groestl/Skein??

Could someone who tested all of them please share.....

Sure, I did try skein and groestl. Qubit never worked quite right (pool's were rejecting shares).

I'll post screenshots after mining for a minute in a sec.

EDIT: someone should fix the OP...the qubit gpu miner posted there gives me HW only mining myriad. Using sph-sgminer everything works fine, same settings.

Groestl comes first, Qubit second, Skein third and Scrypt is the hottest naturally.
Now, power usage, I have no way to test it but I'd be inclined to think Groestl draws less power (it also runs just as fast on a 5870).

Groestl

Qubit

Skein

Scrypt


(I don't mine scrypt at all btw...not anymore)

For skein try lowering the memclock. you might get cooler temperatures. 80 is high for skein.

[ivanlabrie]

I used identical settings for all coins...of course you can downclock mem (300mhz) and it'll help with vrm temps, not sure if it'll affect core though.

[Muzzargh]

I can't connect to either us or eu p2pool.cryptopools.com at present and haven't been able to for the last hour or so.  Anyone else affected?

[ahmed_bodi]

might have gone down. ill tae a look

[CCTrade]

Hey,guys

      New exchange for MYR, Pairs:MYR-Btc,MYR-Ltc,MYR-Doge
     
      https://www.cctrade.cc

      Enjoy trading!

[jelin1984]

how i can mining at skein pool
with ati card can?

[ahmed_bodi]

eu and us is back online. sorry about that

[Muzzargh]

eu and us is back online. sorry about that

Sweet. Best I get bact to mining then 

Cheers

What happened?

[ahmed_bodi]

for some reason the p2pool keeps getting killed. id guess its a ram issue but im paying for the pool out of my own pocket and its exactly covering the server cost

[Muzzargh]

I am currently only showing 5.5mh/s on the website however my cards are reporting 15mh/s each locally, is this a symptom of the ram issue or something else?  An exploit perhaps?

[ahmed_bodi]

most likely it needs time to ramp up

[notsoshifty]

Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power?

since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken.

myr ftw.

With a single blockchain secured by five algos (with independent difficulties), what does it mean for "20% of the blockchains" to be compromised? Surely a blockchain is either compromised or it's not. Can you expand please?

It's only a metaphorical picture. If a malicious attacker would gain leverage over 1 algo (20% of the blockchain) there are 4 other algos that will secure the blockchain, thus the blockchain will remain unaffected. We only use the percentages to give a better idea of what a 51% attack would look like to myr. There was a 51% accident on scrypt last week about the same time it happened on AUR. You know what happened ? Nothing. The pool with 51% of scrypt forked and that's about it, the blockchain had no reaction whatsover to the fork created and ignored it like business as usual. Like it was explained above 51% in one algo is only about 11% of the whole hash power. It's like cutting off a reptile's limb, the rest of the body remains unaffected and it will grow back the said limb imediately.

Well, I still don't get your point, sorry.

If a malicious attacker gains leverage over one algo, what is to stop him launching a double spending attack using that algo, and reversing several transactions from other algos (no matter how much mining power is put onto them)? Done correctly, a double spending attack could potentially net a malicious attacker substantial funds; more than legitimate mining at least.

It also isn't clear to me how a node calculates the best chain. If it is cumulative difficulty, without any normalisation, then what is to stop someone reversing a sequence of low difficulty blocks (e.g. Scrypt or Qubit ones, currently) by means of a single high difficulty block (SHA256D, currently)?

Perhaps these points are just me being dumb. The technical study on 51% attacks that you have put the bounty out for will be most welcome. In the meantime feel fee to point out my mistakes (in technical terms, without harming reptiles, plz).

[halinyo]

I made an mistake yesterday.
Was gonna transfer 50k Myr from one adress to another.
But i mistakenly copied an Mazacoin adress (poloniex account). Usually the clients will complain that the account isnt valid, but for some reason it accepted it without issues!

heres the transaction:
http://myr.theblockexplorer.com:2750/address/MPBwccKVcaRpDpN59njzKVWLCSRr6XpsD2

So basiclly the transaction didnt get rejected. My wallet is empty... this sucks!

Guess those coins are lost forever? or is it possible to use the Mazacoin wallet on an myriad client? (however that depends on poloniex since its their system)

The same mistake, but I was experimental, at present, MAZACOIN wallet can be copied to the MYR and use the MYR client, you can also get a MAZA and the same address, I'm updating client, see time deposits can be received in the MYR client, of course it's all depends on the POLONIEX, because the wallet file in them there.

And complain about, POLONIEX balances the interface is too crowded, I than you miserable, 260K MYR, is really a tragedy.

I love your signature.

The test is successful, now just find the POLONIEX staff on the line!

I had the same problem and CRYPTORUSH.in did not help me to recover my coins. They are not helpful.
I complain maybe a hundred times and beg them to help me recover those coins, but no luck.

My MYR coins are still hanging in a wrong address (a MRY address) of cryptorush.in. Anybody can help? Thank you.

http://myr.theblockexplorer.com:2750/address/MDwr5cQdGx5YmDLWRYAQKhYLvGewmNz2kk

[notsoshifty]

and for the people who havent had a chance to send/receive yet... MYRIAD IS FAASTTT  

and without the problems that coins with very short block times run into. block times are 2.5 mins but confirms equivalent to a coin with 30 sec block time

Blocks are, on average, 30 seconds apart. How does it avoid the problems that other coins with 30 second block times run into?

[ahmed_bodi]

Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power?

since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken.

myr ftw.

With a single blockchain secured by five algos (with independent difficulties), what does it mean for "20% of the blockchains" to be compromised? Surely a blockchain is either compromised or it's not. Can you expand please?

It's only a metaphorical picture. If a malicious attacker would gain leverage over 1 algo (20% of the blockchain) there are 4 other algos that will secure the blockchain, thus the blockchain will remain unaffected. We only use the percentages to give a better idea of what a 51% attack would look like to myr. There was a 51% accident on scrypt last week about the same time it happened on AUR. You know what happened ? Nothing. The pool with 51% of scrypt forked and that's about it, the blockchain had no reaction whatsover to the fork created and ignored it like business as usual. Like it was explained above 51% in one algo is only about 11% of the whole hash power. It's like cutting off a reptile's limb, the rest of the body remains unaffected and it will grow back the said limb imediately.

Well, I still don't get your point, sorry.

If a malicious attacker gains leverage over one algo, what is to stop him launching a double spending attack using that algo, and reversing several transactions from other algos (no matter how much mining power is put onto them)? Done correctly, a double spending attack could potentially net a malicious attacker substantial funds; more than legitimate mining at least.

It also isn't clear to me how a node calculates the best chain. If it is cumulative difficulty, without any normalisation, then what is to stop someone reversing a sequence of low difficulty blocks (e.g. Scrypt or Qubit ones, currently) by means of a single high difficulty block (SHA256D, currently)?

Perhaps these points are just me being dumb. The technical study on 51% attacks that you have put the bounty out for will be most welcome. In the meantime feel fee to point out my mistakes (in technical terms, without harming reptiles, plz).

What you're missing in there is that the speed of the other algo's acts as a rate limiter as far as i know. as the retarget works to ensure there is an even distribution of 30 second blocks per algo.