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Questions tagged [scrypt]

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

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19 views

Dogecoin Scrypt mining hashes python

I know making a miner in python is inefficient and unprofitable, however I would like to do it as an experiment. What exactly is the code to generate a Scrypt mining hash in python? For example, I ...
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0answers
20 views

Mining block are not accepted if BIP related values changed to 0 or 1

I am creating own alt from LiteCoin source. So I have changed hashGenesisBlock , hashMerkleRoot , nonce , timestamp etc.Things are working fine if i don't make BIP34Height , BIP65Height , BIP66Height &...
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1answer
91 views

Altcoin: Send/receive transactions between nodes have high failure rate

I've noticed that an unusually high number of my attempted send transactions between my nodes (which is currently only 6 at most, but never less than 4) will not broadcast regardless of the amount of ...
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0answers
12 views

Using libblkmaker with Litecoin/Catcoin

Can I use libblkmaker for generating Litecoin and Catcoin blocks? Is another PoW hashing algo an obstacle?
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1answer
527 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 ...
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0answers
21 views

I used to do GPU mining, can I track down my wallet?

Back a few years ago, around 2013, I had access to a network that I would occasionally run bfgminer on. Is there any way the files sitting on my computer will have a reference to my wallet? The ...
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1answer
268 views

Can the Antminer S3 mine Bitcoin using Scrypt algorithm?

Because I can use my PC to mine Bitcoin using the Scrypt algorithm. I use NiceHash. They have an option to select which algorithm we want to use. So I was wondering, once I get my Antminer S3, is it ...
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1answer
309 views

Difference between scrypt and sha-256 mining?

So in detail my question is: are both these two algorithms different from each other?. I read somewhere that this two algorithm is used for the different cryptocurrency. if that's true. then why? ...
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1answer
602 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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0answers
167 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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2answers
756 views

How is the “N” in PPLNS chosen? 2xDiff appears to make no sense - OR - Why are Scrypt share difficulties off by a factor of 65536?

while my example in the following question is using the altcoin "Bitconnect", I believe it is actually a general question which fits here - if not, let me know. I am struggling to understand PPLNS (I ...
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0answers
344 views

Scrypt CPU miner supporting segregated witness (for Litecoin testnet4)

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
862 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 ...
2
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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 ...
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1answer
80 views

A2 Terminator Fan Replacement

I am after a couple of fans for my A2 as the bearings have gone. From what i can see and have measured, they are a uncommon size at 105/106mm. Is this correct? Any suggestions on replacements? ...
2
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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. ...
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2answers
143 views

Bitcoin (and other crypto-coins) nonce loop

I recently started to pay attention to what's going on at crypto-markets and, being developer for a long time, decided to take a look at the software we have out there in public access. So I have a ...
1
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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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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: ...
2
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1answer
527 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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0answers
308 views

Zeusminer Blizzards no longer working with bfgminer 5.0.0

I was mining off a raspberry pi with some zeus blizzards, I've had to format the SD because it got corrupted and so I took the chance to install the latest bfgminer. the raspberry is running raspbian ...
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1answer
46 views

Is the a library for generating signatures and transactions for scrypt coins?

I'm looking for a library similar to this bitcoin one but that works with scrypt based coins.
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0answers
138 views

Splitting hashpower over multiple pools

Is it possible to split the mining hashpower of a rented mining rig over multiple pools simultaneously? Say, I rent a scrypt mining power of 5 Mh/s. What I want to do is point that rig to a stratum ...
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0answers
490 views

Multi GPU mining broken since upgrade to Ubuntu 14.04

This is related to scrypt mining. I upgraded to Ubuntu 14.04 and after a bit of a hassle I have got almost everything working, except my mining. The issue seems to be a mismatch between OpenCL and ...
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1answer
1k views

Besides mining Bitcoin what is another good use for an Antminer S1?

Are there any other SHA-256 coins out there that are worth mining? Also, would I be able to mine scrypt-based coins?
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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 ...
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0answers
91 views

How to monitor hash rate over time to diagnose issues

Running a Scrypt mining rig using GPUs. Want to know if there's a way to monitor your hash rate over time. Pool stats arent that reliable from what I understand. CG Watcher, does a decent job, but ...
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1answer
469 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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3answers
981 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 ...
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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 ...
5
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1answer
629 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 (...
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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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0answers
2k views

Share is above target when switching between stratums

I'm running a pool for some friends and myself, where we mine both dogecoin and litecoin (and occasionaly some other flavor of the day). The farms are pointing to a simple proxy: a C daemon that is ...
5
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3answers
7k 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 ...
2
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2answers
710 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?
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1answer
934 views

Configure CPU Scrypt miner

I've decided to give 42coin a shot with CPU mining but the CPU miner that I've found doesn't specify how to configure it. It DOES give you the parameters though. I'm not sure if I should add a .bat ...
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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 ...
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1answer
223 views

0 accepted out of 460? Will my shares be accepted eventually?

I just started mining on Slush Pool using Macminer with a CPU. I am getting a hashrate of 12.28kH/s with the Scrypt hash algorithm, which I guess is not a big rate at all. I am wondering about the ...
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1answer
394 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
2k views

Low hashrate with cgminer 3.7.2 kalroth edition @ ubuntu 13.10 x64 @ R9 290 MSI GAMING EDITION @ 16 gb ram @ core i7 860

I'm trying with (below my sh file): export DISPLAY=:0 export GPU_MAX_ALLOC_PERCENT=100 export GPU_USE_SYNC_OBJECTS=1 cd /home/x/cgminer-3.7.2-kalroth/ find *.bin -delete sleep 3 cgminer --scrypt -o ...
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3answers
974 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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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,...
3
votes
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?
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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 ...
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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
325 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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0answers
493 views

cgminer not accepting or rejecting

I have a R9 280x Toxic edititon and I've set up cgminer with latest catalyst on ubuntu 12.04.3 the thing is, if I run cg miner like cgminer --scrypt -o stratum+tcp://url:3333 -u a.b -p c -I 13 -g ...
2
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1answer
437 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 ...
2
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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 ...
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1answer
322 views

SCRYPT [Need Help] Radeon 5970 HD [Apparently supposed to get 750-800KH/s) @ 300kh/s

Okay, so I'm on Windows 7 and I'm only getting 300KH/s. Please help. I'm using cgminer, I have the latest AMD drivers (Catalyst). I'm using -T --intensity 18 -v 2 --worksize 256 --failover-only -d 0,...