Bitcoin Hash Functions: A Quick Cryptographic Hash Rundown

To the moon! Dogemining with BFGMiner, Debian, and ATI.

Visitor from the future! Hello. I'm a newbie digger and recently setup my first dedicated mining box in Debian. I'm not the most experienced Linux user, but the machine had started with Debian Squeeze and I couldn't find its old Windows key. (Also please forgive formatting errors, I'm new to this whole "Reddit" thing as well.)
I found a number of guides to misdirect me on my way, so I decided to write up a sort-of (or at least hopefully up-to-date) guide to create a Dogecoin miner on Debian with AMD cards, using BFGMiner to mine coins.
Expert digging shibes: I would certainly appreciate feedback to improve this guide.
This is not a headless mining guide. I have not reached that level of mastery yet, though I believe it is well within reach.
HOWTO
You can refer to this wiki source to understand the output from BFGMiner 3.10.0. The one gotcha I've observed is that BFGMiner will happily start off showing hash rates in KHash/sec, and after the first accepted block it will jump to MHashes/sec. When I first saw my hash speed appear to drop from "250" to "0.2", I panicked a little before seeing it had changed its orders of magnitude.
If you think you're still mining slowly, you might need to bump up the intensity for BFGMiner. Higher intensity means more work, and it's possible to create hardware failures if you set it too high. For my HD 5870s, I use an intensity of 12. You can either set the intensity by adding "-I 12" to the ./bfgminer line of doge_dig.sh, or you can adjust the value by pressing M in BFGMiner and working through the menu system from there.
Bonus: Multiple cards
What happens if I have multiple ATI cards on one rig, you ask? I had the same problem, and OpenCL would only recognize one of them! It turns out that there's an easy solution, but it costs $1.25 in resistors from your local radio shack: http://www.overclock.net/t/384733/the-30-second-dummy-plug
Plug the finished product from there into your second card. If you have more than two cards, you'll need to make one for every card you want to recognize without a monitor attached to it. Reboot and restart your mining, BFGMiner should recognize all of your cards now.
In theory, the above technique should allow you to run completely headless, as long as you also install SSH and be sure to have your script export DISPLAY=:0 before running BFGMiner. I haven't tried this, though.
Happy mining and welcome to the Moon! I hope this is helpful to someone.
submitted by indigodarkwolf to dogeducation [link] [comments]

Couple of questions..

I'm new so I want to know a few things.
  1. Why is dogecoin better than bitcoin?
  2. Why is every water bowl 'To the moon'?
  3. How does tipping on reddit work?
  4. How much is $1 USD to dogecoin.
  5. Why do I get khash in dogecoin but Mhash in bitcoin?
submitted by Lol_muncher to dogecoin [link] [comments]

I think I'm way off on the hashrate.

I ordered this graphics card and I saw the saphire alternative on this site to see that it has a 27.0 Mhash/s rating.
Assuming the conversion from Mhash to Khash is the same from megabytes to kilobytes, I could easily see that got.... 27,000 Khash??? that doesn't see right because that means according to this calculator that would mean I was making over 15 litecoin per day. I seriously doubt it is this easy to produce these. I'm sorry for sounding like an idiot. It's late and I probably am off by a couple zeros.
submitted by theguywithacomputer to litecoinmining [link] [comments]

Questions about mining

Hello everyone. I have been doing a bit of research on hardware that does well with this type of thing and I came across this site when reading through forums on configs and hardware setups: https://products.butterflylabs.com/
To my understanding most of the GPU setups are in kHash which is (1 mHash / .1 gHash). Am I correct on this or off on my reading? Also, are those ASIC's set up specifically for Bitcoin mining ONLY and not Litecoin mining (as of right now)? Just seems like those will make any GPU setup completely obsolete. I was looking at some hardware setups to build some towers that would get about 500 kHash a piece (assuming I set them up right) according to this site: https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-Nvidia_GPUs
So first off I will be testing this out with my normal PC to see if I can get it working and then if it goes smoothly look into getting some dedicated rigs. So my question is, where should I put my money in terms of hardware? Will GPU mining be the most efficient for the time being with Litecoin mining or will holding out to get one of the ASIC setups?
Sorry if I have a lot of noobie questions, just trying to make sure I understand this correctly before making any decisions.
Thanks!
submitted by VR4Gazm to litecoinmining [link] [comments]

Bitcoin Graph with Bitcoin Hash Ribbons Bitcoin Hash Rate Hits Record Average High Defying BTC Price Bears Bitcoin Hash Ribbon Signal Confirms ‘Great Bull Run’ Says Analyst $1K and 15 Mhash Worth of Bitcoin Mining Rigs - IS GPU MINING STILL PROFITABLE? - Mining Adventure3 bitcoin mining CPU AMD A8-5600 max mining speed 4 Mhash/s

A Hash or also called hash function is any algorithm that maps data of arbitrary length to data of a fixed length. The values returned by a hash function are called hash values, hash codes, hash sums, checksums or simply hashes. Recent development of internet payment networks and digital money, such as Bitcoin, also uses a form of 'hashing' for checksums, and has brought additional attention BitCoin uses the SHA-256 hash algorithm to generate verifiably "random" numbers in a way that requires a predictable amount of CPU effort. Generating a SHA-256 hash with a value less than the current target solves a block and wins you some coins. Your hash-rate: 1579000000 hashes/second : Difficulty: 13732352106018 times difficult than difficulty 1: Exchange Rate:-0,00000000/BTC Block time: A miner may search the Bitcoin mempool, where unconfirmed transactions are stored, verify the transactions, add them to a new block, and then find the proof string that will go to the Bitcoin networks blockchain. The blockchain will confirm whether or not the proof is correct. If it is, the block can be added to the blockchain and the miner In bitcoin mining, the inputs for the function are all of the most recent, not-yet-confirmed transactions (along with some additional inputs relating to the timestamp and a reference to the

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Bitcoin Graph with Bitcoin Hash Ribbons

mining, bitcoin, crypto, bitcoin cash, nvidia, amd, server, graphics cards, gpus, ethereum, nicehash, dash, bitmain, asic, currency, altcoin, cryptocurrency. Inspired by the bitcoin Hash ribbons Indicator on the Bitcoin graph, I published this video to have a more indepth look into this exquisite Bitcoin Indicator. How does it work in relation to the ... If you are feeling Generous. 1HtszptLXskCrwoVSLUeEugLB2P8S43vUL Just set this up out of boredom and wanted to see how it all works as Asic miners make this easy to do ... An essential Bitcoin ( BTC ) metric has hit a new all-time high as miners pledge ever more computing power to securing the network. Data from various resources including Blockchain confirms that ... Here is just a brief overview of what goes into building these monstrosities. I am no expert at Crypto Currency Mining but these machines do fascinate me and...

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