Questions tagged [scrypt]

Alternative Proof-of-Work function employed by Cryptocurrencies such as e.g. Litecoin and Dogecoin.

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18
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3answers
1k views

Looking for nonces of even numbers

Each one of bitcoin and its derived crypto-currencies has a nonce value in the block, no matter what the algorithm is. Every miner tries to search for a luck nonce which can make the hash value ...
11
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1answer
2k views

How does the CPU hashing algorithm used in Yacoin differ from scrypt?

Alt-coins are now a dime a dozen and with only minor changes to generation rates, difficulty, and algorithms, they all tend to use the SHA-256 (bitcoin) or the scrypt (litecoin/tenebrix) hashing ...
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5answers
6k views

What features of scrypt() make Tenebrix GPU-resistant?

There's a fork of Bitcoin called Tenebrix that is claiming to be CPU-friendly and GPU-resistant (with regard to mining). They say that this is because they're using scrypt instead of SHA256. From what ...
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3answers
30k views

Litecoin - Is better use a good CPU or good GPU?

I heard in some forums that mining Litecoin is better using a good CPU (Processor), different from Bitcoin that's better mine using a good GPU (Videoboard). I want know, this is true? For litecoin, ...
6
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3answers
9k views

Full example data for scrypt Stratum-client

I'm trying to write a Mining client for Scrypt-based mining using Stratum Communication. As of now, I have some trouble verifying all my bit orders and sequences. Hashes I'm generating get always ...
5
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1answer
657 views

How does scrypt pow work?

Bitcoin's pow is sha256, the hash of header is taken and check against a given target to see whether it is smaller than the target, this can be easy seen as block hash starts with zeros. But how does ...
5
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1answer
645 views

Does CPU mining become efficient as memory requirements increase?

I am focusing on an anti scrypt coin called Vertcoin which increases it's N-factor at a set interval. On their main page on bitcointalk it states that CPU computation will make gains as N-factor (...
4
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3answers
49k views

5 GH/s Bitcoin Miner from Butterfly Labs can mine Litecoin?

I was wondering buy this ASIC miner of 5GH/s to mine Litecoin. I want know, can I mine Litecoin with this powerful tool? If not, there any ASIC miner's that can mine Litecoin?
4
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1answer
7k views

How to setup a DNS Seeds node and a Seed Node (for Litecoin clone)

I'm doing this for study purposes (creating a Litecoin clone). I read somewhere that for SCRYPT clones, the DNS Seeds nodes aren't necessary? If I do need them, how to I setup these nodes. I know a ...
4
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2answers
2k views

how does Scrypt use memory?

I saw in some places that Scrypt uses a lot of memory, therefore a good supply of system RAM is needed to hash with it. however, I saw in other places stating that is ONLY uses L2 Memory. which one ...
4
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2answers
5k views

Is Vertcoin really ASIC resistant?

Vertcoin comes with Adaptive-N-factor, which means the scrypt algorithm PBKDF parameter N will be changed according to the announced time table. Litecoin has N=10, while Vertcoin starts with N=11. And ...
4
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1answer
1k views

Why did Litecoin choose the scrypt factors that they did?

Litecoin uses the scrypt factors (N=1024, r=1, p=1) This means that each hashing thread takes 128kB of memory. The scrypt paper recommends r=8. Colin Percival, the creator of scrypt, has said: Q: are ...
4
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1answer
1k views

Why GPU (cgminer) scrypt mining generates so many false-positive nonces?

I understand that GPU might have less accurate results of real numbers because speed/performance is the target. But I don't understand why it also occurred in integer numbers. Taking mining algorithm,...
4
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3answers
6k views

Litecoin mining 10 times slower than a couple of days ago

I have a 5850, and have been mining with it for about a week. With GuiMiner I can mine bitcoins at about 275Mhash/s. This has not changed. A couple of days ago I setup Litecoin mining and it was ...
4
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2answers
910 views

Is equihash/scrypt suitable for pooled mining?

A "sequential memory-hard" PoW scheme cannot be parallelized effectively thus I imagine you also can't distribute solving the puzzle between participants in a pool? How does that work with scrypt then ...
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6answers
7k views

Scrypt based merged mining pools

Does anyone know why there are no Scrypt based merged mining pools out their yet? I would imagine that if it was possible it would have been done already. There is no problem to do it with SHA-256 ...
3
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1answer
19k views

most profitable scrypt mining machine per dollar with unlimited budget and free power?

I know The 7950 is the most efficient in (MH/s)/$/watt... but I have contractual access to unlimited free power. I'm already using the power anyway so the marginal cost of the power is actually zero. ...
3
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1answer
1k views

What is the fastest way of litecoin mining?

I have searched whole the Internet but it looks like that there isn't any fast way of mining litecoin. Most powerful CPUs just mine about 200 Kh/s and the most powerful GPUs mine around 900 Kh/s. ...
3
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1answer
4k views

What are the most popular CPU/GPU miners with scrypt-jane support

There are a few github projects, but it doesn't look as though there's a 'mainstream' option with good support for varying protocol. Is there any one most popular?
3
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1answer
4k views

How much does system RAM matter for Litecoin mining?

I know your system RAM cannot be smaller than your GPU RAM for LTC mining, but other than that, is it a problem if you have like only 2GB of RAM?
3
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0answers
363 views

Scrypt CPU miner supporting segregated witness (for Litecoin testnet4) [closed]

I am interested in CPU mining on the Litecoin testnet (testnet4); the difficulty level is currently low enough to make this feasible. The standard Litecoin client no longer supports CPU mining. The ...
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2answers
4k views

How is Scrypt ASIC-resistant?

I just started reading about Litecoin's Scrypt algorithm and all the explanations are quite complex. I have understood that Scrypt uses more memory than Bitcoin's SHA-256 which makes it ASIC-resistant ...
2
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2answers
734 views

Butterfly Jalapeño for Dogecoin? [duplicate]

Can a Butterfly Jalapeño be used to mine dogecoin? If so, is it cost effective, compared to it's bitcoin mining cost effectiveness?
2
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1answer
604 views

Are received BTCs really mine?

when somebody send me BTCs I recognize that by seeing a transaction output is equal to my address. But how can I be sure that it's really me and only me who can spend the output? I can check, I can ...
2
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1answer
552 views

What is the benchmark that mining ASICs are measured with to determine the hash rates?

When a mining ASIC claims to run at 1 MH/s or 10/MH/s or even 1000 GH/s, at what difficulty and with what algorithm is that measured against?
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3answers
2k views

Scrypt (Litecoin) memory / performance tradeoff

For Litecoin, if memory size is increased in processing the Scrypt algorithm, for example to 384 kB instead of 128 kB (and assuming likewise an L2 cache size of 384 kB), would the typical CPU ...
2
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1answer
443 views

Litecoin miner crash with no apparent reason

I have a machine with 1 R9 X280 running on Intensity 13. It ran for 2 weeks with no problems, and now it's been crashing every day, or even up to 4-5 times a day. (Crashing as in rebooting with no ...
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2answers
2k views

scrypt mining rig suggestions

i went to configmyrig.com and selected the options to hit something close to 5mh. here is a screenshot: http://s28.postimg.org/uayj19exp/Screen_Shot_2014_01_09_at_11_21_58_PM.png i'll be scrypt ...
2
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0answers
190 views

Help in understanding block header input data for scrypt

I am an computer engineering student trying to understand how the Litecoin scrypt algorithm works. I downloaded the Github cp-uminer. Can someone give me some examples what the input data look like ...
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0answers
4k views

Middlecoin vs Wafflepool vs multipool.us [closed]

Which one actually has a better payoff? As I understand from their websites, their fees are: Middlecoin 3.88% Wafflepool 1% Multipool.us 1.50% So, clearly Wafflepool's the best, but how are ...
2
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1answer
809 views

What are the mining spec differences between Bitcoin and Litecoin?

Obviously, Litecoin mining requires less computational power as it it more CPU friendly, but does this mean that if you switch a GPU Bitcoin miner To Litecoin mining you will be wasting your resources?...
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2answers
393 views

How is 'scrypt' pronounced? [closed]

Please help me end this argument. How is 'scrypt' pronounced? Could it be pronounced "script"? "Es Crypt"? "skriped"? Thank you.
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3answers
1k views

Is difficult hashing algorithm necessary?

To avoid GPU/ASIC mining, difficult hashing functions, such as scrypt and scrypt-jane, are proposed as PoW algorithm (However, GPU and ASIC are also suitable for basic scrypt operation). Is it good ...
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2answers
3k views

ASICs and large memory requirements [duplicate]

People keep saying that proof of work functions like scrypt prevent ASICs from working because of large memory requirements. What's stopping ASIC designers from simply building ones that have lots of ...
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3answers
17k views

CGMiner litecoin mining generates invalid nonce errors

It seems that litecoin/scrypt support in cgminer is unstable as I've found a lot of mentions of this error in various forums and no real solutions. Some seem to be able to resolve the problem by ...
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1answer
3k views

Most important spec to look for on a GPU for scrypt mining (e.g. Litecoin)

By taking a look at all the current AMD cards comparison: http://en.wikipedia.org/w/index.php?title=Comparison_of_AMD_graphics_processing_units I was wondering if GFLOPS would be the best way to ...
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1answer
21k views

How to work out my hardware's hashrate power

Using my existing hardware, I want to work out which altcoin is still profitable to mine. I have found this link: http://dustcoin.com/mining But don't know which values to enter into the boxes at ...
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3answers
1k views

Is there a working Open source implementation of litecoin mining application for Linux without GUI

Is there a working Open source implementation of litecoin mining application for Linux flavours without GUIs (think debian, ubuntu server etc.) I found a couple of implementations by developers but ...
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1answer
2k views

How to make a CryptoCurrency (preferably using Scrypt) in depth [closed]

I'm looking for a proper guide to creating a CryptoCurrency. I know this probably won't be easy, but I'm really determined, and do know how to code in some languages. (C++ Beginner). I've heard a ...
1
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1answer
511 views

what is the difference between eatch coins wallet address,what is the coin public id/salt?

i looked at the link: http://brainwallet.org/ witch generate offline wallets for all major coins, i noticed that the same Passphrase generate different [Private Key&Address] pairs for eatch coin ...
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2answers
1k views

For maximum mining performance, is it better to minimize latency from the mining rigs to the p2pool server, or from the p2pool server to the Internet?

I'm setting up a p2pool server to mine Scrypt-based coins on. Mostly just for myself, but occasionally some friends will jump in. I'll mostly be mining newer coins with very low difficulties. I'm ...
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3answers
4k views

cgminer freezes at random intervals

I have just recently built a mining rig. The problem I am running into is that cgminer will randomly "freeze" while mining. When I say freeze cgminer will just stop accepting shares and the GPU data ...
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1answer
1k views

Is there a reliable and accurate profitability calculator?

I've looked at the various profitably calculator sites and honestly I'm not sure how up to date they are. They don't seem very accurate. Is there one that's better than the others?
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3answers
2k views

5gpu 2psu scrypt mining rig shuts down 1hour later [closed]

I built the following rig: 5x SAPPHIRE TRI-X R9 280X 3GB GDDR5 OC (UEFI) 1x AeroCool Templarius Imperator 1150W 80 Plus Gold 1x HighPower Tech 1200w Gold Plus (HP-1200-G14C-GOLD) 1x Gigabyte GA-...
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1answer
407 views

CPU bottleneck and Scrypt mining?

Im planing to set up a small energy efficient mining rig, im planing to use a low power CPU/MOBO bundle, this is my favorite: Biostar A68I-350 (with 1 DIMM DDR3 4Gb) It takes only 18W TDP and has one ...
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1answer
5k views

Is my cgminer (scrypt) working / Mining on middlecoin pool

I'm trying to mine on the middlecoin pool using the following command: cgminer --scrypt -o stratum+tcp://middlecoin.com:3333 -u 1C7Ubg5VxvJyXYBT6neNVFgUVdgq1Kiy72 -p asdf and I do get the screen ...
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1answer
345 views

AltCoins based on Scrypt - How to do transactions with PHP?

Im interested in other scrypt based coins other than Litecoin. I have noticed that most of these coins have no documentation. So is it safe to assume that I can follow the Litecoin documentation if ...
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1answer
2k views

When launching cgminer with scrypt parameters, Windows gives an error message. Why does this occur?

Cgminer opens up, stays for like a second or two and then Windows gives me an error message. Mining (bitcoins?) without --scrypt works fine but with the scrypt parameter, I get the message seen in the ...
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3answers
6k views

Litecoin mining hardware

Does readily available hardware exist which is capable of at least 25MH/s for litecoin mining? So basically, I am after hardware which can mine scrypt type coins which can do at least 25MH/s.
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1answer
3k views

litecoin mining very slow

I recently heard about litecoin and thought it would be a good alternative of bitcoin as it is "faster" with less requirement. however, I noticed that any attempt to mine litecoins is significantly ...