Expresso Cotação do dinheiro virtual, gerado por 'mineradores' na internet e que circula sem barreiras subiu 245% em 11 meses_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 6 I know and understand the concept of proof-of-stake.Instead of requiring users to do a certain amount of power-intensive hashing "work", it requires you to own a certain stake of the currency in order for you to mine new coins.But how does the actual mining process work?In PoW mining, people "find" blocks by generating a hash that fulfills a certain condition.How can one mine a PoS block?Is a miner required?Or does just anyone holding coins get their share after a certain amount of time?In Peercoin specifically, is PoW and PoS mining done independently or do they interfere or influence one another?mining-theory proof-of-work proof-of-stake ppcoin up vote down vote In Nextcoin, proof of stake is used.

So the "mining" process there is just about holding coins and leaving your computer on.It doesn't involve powerful CPUs.Each block (every 60 seconds), a random Nextcoin is selected to be the next "miner".There are 1 billion coins so the odds of a single wallet being selected is the number of Nxt in that wallet divided by 1 billion.(Also, it's possible to calculate and agree on who that node is so the transactions need only be sent to that particular wallet.)If a node with the selected wallet is running, it will collect the transactions, make a block, and send it to the rest of the network and collect the fees.If the computer is turned off, however, then the entire network will have to select a different nextcoin to make the transaction.This time, the unresponsive wallet will be ignored.The network would suffer in that the time to make a block is decreased, but the thought is that people wouldn't leave their computers off if they have a lot of NXT because they're missing out on all the fees that they could have collected.

If you only have a few NXT, you can leave your computer off: You probably wouldn't have collected much fees anyway.But, your odds of being selected were low so it probably won't decrease transaction times much.up vote 3 down vote For Peercoin specifically, PoW and PoS blocks are independent.Just as you're betting your consumed electricity and CPU-time vs.the possible PoW-blok's reward, in the PoS blocks you're betting your coin-age: the amount oF PPC you own multiplied by the number of days they've sitted idly at your wallet.It must be a minimum of 30 and a maximum of 90 days for your coins to start generating tickets for the PoS raffle.Should your ticket win, you earn 1% interest and lose all your coin-age, so your coins are, from the network POV, as though you had just received them.you'll need to wait another 30 days for them to be able to pay you interest again.Over time, though, you're just supposed to earn about 1% annually.Since code for PoS and PoW are independent of each other and the concept of PoS so new, there have been a couple bugs to be fixed plus a kind of attack was found that allowed users to generate a lot of PoS raffle-tickets for "free" - fortunately Sunny King has been able to fix such problems quickly.

Browse other questions tagged mining-theory proof-of-work proof-of-stake ppcoin or ask your own question.bitcoin japan scandalHave you purchased a USB Bitcoin miner and need to learn how to set it up?paul singer bitcoinAntMiner U2 2 Gh/s 1.0 W/Gh 0.8 ounces $49.66 0.0002 BPMC Red Fury USB 2.5 Gh/s 0.96 W/Gh 1.6 ounces $44.99 0.00021 GekkoScience 9.5 Gh/s 0.33 W/Gh 0.8 ounces $49.97 0.0003 What’s going on every one?bitcoin value in indian rupeesThis is Fred and today we’re going to build a Bitcoin miner.jordan lee bitcoinSo, if you’re unfamiliar with Bitcoin I do have another video that has all the 10 things that you need to know about Bitcoin.bitcoin surat

So, give that a watch, get caught up, come back and we’ll get started.So, here’s all the pieces that you need to start building your own Bitcoin miner.caida bitcoin 2015I will place some links to all the parts down below so that you can get started on your project.berita bitcoin hari iniNow, the first item that you want to pick up is called a Raspberry Pi.berita bitcoin hari iniNow, this is basically just a credit card sized computer.bitcoin runescapeNow, the nice thing about having one of these is that this is a completely separate unit from your personal computer, which means you can mine for Bitcoins 24x7 without affecting your daily computer usage.Now, when you’re picking up one of these you want to make sure that you get the version B. Now, due to its size it’s very efficient on power consumption.

This entire computer can be powered by USB cable.The next item on the list is just a plastic case for your Raspberry Pi.Now this is an optional item but I highly recommend it because it will protect your Raspberry Pi in case anything falls on top of it.Plus, it’s very inexpensive.This one was about $10.So, you’ll also have to get an SD card.Now this SD card basically acts as the hard drive for your Raspberry Pi.Now you want to get a 4 gigabyte minimum on this card.Now I have an 8 gigabyte just because it was on sale and easier to find at the time.The thing that you want to focus on is getting a class 10 SD class.And to power your Raspberry Pi you will need a micro USB to USB cable.So, all the parts that I just listed basically creates a separate computer.Now this computer will run the mining software.All the parts that I list next will be the actual mining hardware that will mine for Bitcoins.Okay, so this is the actual hardware that mines for Bitcoins.This is called an ASIC miner or a Block Erupter.

Now this is basically just a chip that has one job and that is to mine for Bitcoins.It could be powered by USB so you could plug a bunch of these into a USB port.Now this specific one mines at a rate of 335 megahashes per second.So, what I have is I have six of them so these will give me over 2 gigahashes of mining power.And to power all those Block Erupters you need to get a good quality powered USB hub.Now the keyword here is powered meaning that there is an eternal adapter that you plug into the wall outlet.Now this will give it an even power across all of the USB ports.Now you don’t want to cheap out on this you definitely want to get a good quality hub.Now because your Bitcoin miner will be running 24x7, those Block Erupters tend to get pretty warm.Now what you can do is just get one of these USB fans, plug it into the USB port and this is a very good inexpensive way to keep things cool.Lastly, all you need is an Ethernet cable.Now this is what’s going to get your Bitcoin miner connected to the internet.

Okay, so that’s all the hardware that you will need for this project.Let’s start putting everything together starting with the Raspberry Pi.Okay, so the first thing you do is take apart the case and place your Raspberry Pi on the bottom piece.Now just go ahead and line everything up and it should snap together, like so.Then just go ahead and put the cover over just like that.Okay, so as you can see your Raspberry Pi will have two USB ports.A spot for your Ethernet connection it’s going to have some audio and video outputs.This slot is for the SD card.Here is a micro USB to power the unit.And then finally you’ll also have an HDMI output so that you could connect this to a screen.The next step is to insert your SD card into your Raspberry Pi.Now this SD card is already loaded with my mining software.Right now I’m using an operating system called MinePeon.Now if you’re not familiar with how to load up the software onto your SD card, I will be making another video going through the step by step instructions on how to do that.

But until then just take your Raspberry Pi and insert the card into its SD slot, like so.Okay, now let’s take a look at the USB hub.Now this is not plugged in yet.I just want to get everything installed prior to powering it up.The first thing that I’m going to do is install the power cord for the Raspberry Pi.I’m going to put it in the first slot right here and then move this off to the side for later use.Next I’m going to start plugging in the Block Erupters one by one.I have a total of six.Make sure they’re in there nice and firm evenly seeded.Like I mentioned before, each one of these Block Erupters are able to mine at roughly 335 megahashes per second.So with six of them I am getting roughly 2 gigahashes.All right, so I have six of them plugged in right here.And finally take your USB fan and just direct it above the Block Erupters.Now this USB hub has a USB 2.0 connection right here on the end.Now this is going to connect to the USB ports on the Raspberry Pi.So the Raspberry Pi has two USB ports we are just going to need one of them, like so.

Next, take your Ethernet cable, connect it to the Ethernet spot on your Raspberry Pi and connect the other end to your modem.Once you have everything plugged in just go ahead and power it up.Okay, so as you can see by these green LED indicators it’s just telling you that these Block Erupters are properly installed or in standby.All you need to do now is go into your mining software, set up your mining pools and start mining.It’s just easy as that guys.All right, so that’s all the hardware that you will need to start mining for Bitcoins.Now this mining rig is mining at over two gigahashes, which is not too bad considering the costs and simplicity of the entire project.Now I’m going to show you a quick screen shot of the performance that I am getting with this mining rig using the MinePeon software.Now if you need help setting up the mining software I will be uploading another video soon showing you the step by step instructions of how to get everything set up.But this video should give you a good head start.