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Setting up a old Windows XP Machine as a bitcoin miner. Here's what i want it to do, and i need step by step instructions.

Hey guys.
So i dug out my old PC, and decided to set it up as a bitcoin miner. I don't have a spare monitor, so for now i've rigged it up to my TV, where it's not going to live forever. Here's what i want it to do ;
1) Turn on and automatically open a bitcoin miner and mine for bitcoins without having to move a mouse or use a monitor.
2) When it reaches a certain heat, auto shut itself down (Should be easy in the bios)
I've looked online with little help..using WinXP SP3.
submitted by TehZexxus to techsupport [link] [comments]

I had like 3 friends ask me how to build a PC in the past week so I made this to help them.

(Reddit Edit: Help my improve the document with productive constructive comments on what I got wrong or messed up! Im only human lol
Also a lot of this is supposed to be kinda humorous. I didn't think I had to say that but, hey, its the internet.
I appreciate the positive and productive comments! )
Beginners basic guide to building your own PC as of early 2018
(EDIT: Sorry for being a MSI/Corsair Fanboy)
Heres a collection of thoughts to consider when building your own personal PC
As always Id personally use PCPartPicker.com to configure your parts and for further thoughts on compatibility.
First off building a computer is 100% based around what you plan to use the computer for.
Here are a few uses and generic ideas of what to go for. Audio Editing: Lots of small tasks that need to be completed quickly without lag. - Fast Processor( >4GHZ) - Fast RAM (MHZ) -At least 16 gigs! - Fast Storage, SSD manditorily - M.2 or PCI for best performance. - Shitty Graphics card, graphics card there only to keep the cpu from doing other tasks when working. - Can be a few generations or years old. - Many screens for lots of plug in windows to be open Video Editing: Lots of large to render and files to read. - Multi core processor the more the merrier - SSD for fast read/write of large video files. - Insane graphics card, AMD graphics cards are debatibly better but the nvidia Quadro series are specific for video rendering. Gaming: No more than 4 cores intense graphics card - 92% of games are not coded for more than 4 cores so why spend the extra money for it. - SSD for quick load screens - Nvidia cards, 10 series, the higher the number the better. Titan cards for MAXIMUM OVERDRIVE! Coding: quick processor for lots of small tasks. Ergonomic peripherials? - Dear god please dont use a mechanical keyboard so that your coworkers dont kill you. Home office: Everything can be a few gens behind so you can get the best power per dollar spent. - Sorry that Gateway doesnt exist anymore. I guess try Dell... 
Parts (Expensive Legos)
CPU (tells things to go places and outputs data) Basically three main routes to go for: Intel, AMD, or ASIC. Intel - Gaming, Data center, Hackintosh Pros: Cooler, Faster speed (GHZ), short small tasks faster Cons: $$$$, less cores AMD - Gaming, Personal Computing, Large task processing Pros: Lots of cores, better price per performance, faster processing of large tasks Cons: Hot chips, large chips?, compatibility issues with MacOS. ASIC - "Application-specific integrated circuit" Pros: Does the task that they are made to do insanely efficently, great for mining. Cons: Literally does nothing else. Holy hell these are expensive, very hot (fans will get loud) CPU Cooler (Im a big fan) Most come with an in box cooler that are ok but please buy aftermarket. In Box - the free shitty cooler that comes with the processor. Pros: Free. Cons: Ugly, makes chip run hot, hard to clean Air cooler - oldest type of cooler but new designs are highly efficent. Pros: Only cooler that has the possibility of being 100% quiet, most likely cheaper Cons: large, if cooler isnt large enough for the chips thermal output the fans will be loud. Liquid - Custom pipes are beautiful, AIO is easy to install and offers similare performance. Pros: Looks cool, great temperatures, "quiet" Cons: Water pump has possibility of being loud, possible spills Phase Change - uses the technology of refridgerators to cool the chip Pros: Can overclock until the chip breaks. (whats colder than cold? ICE COLD!) Cons: Loud (compressor noise), Large pipes, just why.... Motherboard (the convienacnce store of computer parts) Really just about what type of I/O you want. - MAKE SURE FORM FACTOR FITS YOUR CASE! (or vice versa) - Look for PCI lanes for expansion. - How many graphic cards do you have? - PCI based interfaces? - PCI SSD? - PCI DAC? - PCI WIFI? - USbs? Network? Audio? - How many lanes of RAM? - DOES IT FIT YOUR PROCESSOR!?! (really tho) - M.2? - How many sata interaces? Good Brands: MSI, ASUS, Gigabyte Bad Brands: AS(s)Rock, Dell Memory (Dory) - The more the merrier - No less than 8gb for a functional windows machine (16 gb to never have a problem) - Use all the lanes your computer has to offer! the more lanes to access the faster the data can travel! -Imagine drinking a milkshake. If the straw is wider you can drink more of the milkshake than a skinny straw. - Faster MHZ for faster data access but give minimal performance differances - Please get ram with heat spreadders unles youre building a server with high airflow. - Make sure the type (DDR3 or DDR4) of RAM matches what your processomotherboard call for. Good Brands: Corsair, G.Skill, Ballistix Storage (Grandpa that remembers everythign about how things used to be but takes forever to learn a new tasK) Speed or massive storage? slower is cheaper. Golden ratio of speed/storage/price is 250-500 gb SSD and a 1+ tb disk drive. *Max speeds listed are for a single drive not RAID* Hard Disk Drives (HDD) - Cheapest and slowest - read/write speeds of < 0.5gb/s - 7200+ RPM or GTFO - Higher Speed drives can access data faster. - Do not move while powered up. physical parts will break. - Larger Cahche = faster Read/Write Speeds Pros: Cheap, Holds massive amounts of data Cons: Slower than molasses in a frezer Reputible Brands: Seagate, WD Solid State Drives (SSD) - necessity for quick boots and fast load screens (can only be re-written to so many times) - SATA based (2.5 inch)- Read/Write speeds capped @ 6 gb/s Pros: Most economical, form factor fits with old computers, Cons: "Slow" compared to other ssd's (but stil 12 times faster than a HDD) - M.2 based - Read/Write speeds capped @ 10 gb/s Pros: Size of a sick of gum! High End but not too expensive to be out of reach. Cons: Expensive for any size over 500 gb - PCI based - Read/Write speeds capped @ 20 gb/s for PCI3, x4 Pros: HOLY BANDWIDTH BATMAN! Faster than that little creepy ghost thats always in the corner of you eye Cons: You might have to take out a loan to buy one. *takes up a x4 PCI Lane* Reputible Brands: Samsung! Corsair, Plextor, Intel, Kingston, Crucial Video Card (that one kid that has thick glasses and is really good at math) - A regular old PCI card that handles all of the video rendering and output for your computer. - ASIC PCI cards. - The PCBs and chips are patented by two main companies but the differances come from line up and varying manufacturer cooling devices. - The more memory the better -NVIDIA (Team Green) Great for gaming, has specific card series for intensive rendering. Lazy driver updates. - Gaming - 900 series - Cheap - Low performance - Can play any video game made befrore 2010 on max settings - 1000 (ten) series - Expensive (thanks bitcoin miners...) - Great for VR! - Video Rendering -Quadro Series - Gaming and Rendering - Titan X - Maxwell based chip same as 900 series cards - Titan XP - Pascal based chip same as 10 series cards -AMD (Team Red) Underdog does the same thing but slighly worse and cheaper. (except video rendering) - Gaming - RX 400 series - Cheap - Hot - RX 500 series - Cheap - Ok at VR and deacent gaming frame rates. - Not bad but not particularly great either. - Video Rendering - Fire Pro series - Gaming and Rendering - Vega series -Good luck finding one to buy lmao Case (Fancy clothing for your parts!) - Similar to human clothing you want it to do a few main things really well with compromises for each extreme. - Durability - Steel - Incredibly durable - Creates Farady cage for components - Heavy af - Magnets, just magnets.... - Rust over time - Aluminium - Light - East to bend for modding or "physical maintenance" - Less likely to rust - Huzzah for Farady cages! - Plastic - Just dont - no electrical Ground - no faraday cage - Light AF! - Breath (Airflow) - positive internal airflow! - larger fans push the same amount of air with less speed/noise - Looks - Window? - RGB - Cool Paint? - Fit all your parts - graphics card length/ clearacne - support for liquid cooling raiators? - How many spots for HDD/SSDs - Motherboard format - Cable management! Power Supply (FIGHT MILK) - Rule of thumb: BUy Powersupply that outputs 1.5 times the wattage that you need. - You can walk further than you can you can run. - The PSU can casually output 50-75% power for much longer than at 90-100% (without failure) - If you never demand enough wattage for it to get hot the fan doesnt have to turn on therefore making it quieter. - Modular means you can remove/replace the cables from the PSU. Reputible Brands: Corsair, EVGA Optical Drive (motorized cup holder) - You can download most things today so I'd suggest against it unless you really NEED to watch/write DVD's/CD's Operating System (software that makes everything work) Windows (Always Updates) - Compatible with just about everything - Easy to learn to code on! - POS inital browser - Likely to get virus's Linux (Penguins are cute) - Unique - takes less resources to run - Barebones - Incredibly personalizable! - Compatibility issues with just about everything MacOS (Linux but more annoying) - It is legal! - Great for art and your grandma that doenst know how to use computers! - User friendly - Compatibility issues with various hardware - Confusing/Limiting coding structure Peripherials (cables everywhere!) - Keyboard (higer Polling rate is better) - Mechanical (key is pressed at an exact stroke length every time - Mouse (Higher Polling rate is better) - more buttons = better? - DPI (Dots Per Inch) - In theory, if a mouse has 1600 DPI, then, if you move your mouse one inch (2.54 cm), the mouse cursor will move 1600 pixels - Higher DPI the faster your cursor is able to be moved. - Monitor - In theory the human eye cant see faster than 60 frames per second. - Keep in mind Pixel ratio! - 4k screen that is 22inches will have more pixels in a square inch than a 4k screen that is 28 inches. - Interface? - DVI (Analog) - thumbscrews..... - can do two monitors with one port! - support for 4k - VGA (Analog) - thumbscrews... - max resolution is 1440p - Display Port (digital) - nice button clip - supports 4k - HDMI (Digital) - 1.2 or higer supports 4k - DAC/Speakers/Headphones - Dont even get me started - Microphone - Dont get me started PT.2 Other (other) - UPS (uninterruptible power supply) Just a battery that allows your computer to have some time if the power ever goes out so that you have time to save your work. - Cable Organization materials! - Zipties - velcro - LED LIGHTING! - Manditory - Extra/Better fans - More pressure, less woosh - IFIXIT Pro Tech Toolkit - becasue who buys just one torx wrench. - Cute kitten mousepad - Yes, it has to be a cat. Dont argue 
This is a very general entry into building computers and what you should buy/look for. If you have any questions/comments send me an e-mail!
-Zac Holley-
submitted by Zac_Attack13 to pcmasterrace [link] [comments]

Check out Part 2 of our first Skycoin Official AMA with Synth

Enjoy Part 2 of 2 of the Skycoin Official AMA with Synth for March, 2018. Part 1 is posted here.
 
How will skywire stop centralization such as massive skywire node forwarding servers, like with the current internet?
There will be more competition between pools in Skycoin than there is in Bitcoin. If that problem occurs, then we will deal with it, we have strategies and models in place to handle this potential scenario.
 
How will it stop whales building humongous skyminer pools in massive cities such as New York that will forward all the nodes in that city?
If a whale wants to come in and invest 1 billion dollars, to take control of the internet service for a whole city, then it will only make Skycoin grow faster. If it becomes a problem like what is happening for Bitcoin right now, then we have plans in place to handle the issue.
The miner pools can only be so abusive in Skycoin, because if the pools are too abusive, then other people will switch to smaller pools that give them a better deal.
 
How do you solve mining for bandwidth? What is to stop an attacker putting two routers next to each other to print money?
This is of the reasons why Skycoin will work and we do not think we have any viable competitors. We know how to solve this problem.
The short answer is that we are not paying users for bandwidth. Users are paying each other. So if you put two routers next to each other in a loop, then you are paying yourself for your own bandwidth! So you are not printing money. It is the same as moving money from one of your wallets, to the other wallet.
Skycoin does not “print money”. There is zero inflation. It is a closed loop economy.
Our mathematical models show that if the network is not running in closed loop, that you can always game the system and eventually botnets will take over all of the rewards.
There is another way we found, which uses a bandwidth credit system and later we can build futures and derivatives markets. Since bandwidth is scarce, but is wasted if not used our algorithm allows a certain amount of fraud (acceptable loss ratio) to be factored in but mathematically guarantees that the fraud stays below a certain threshold. There is a maximum amount or upper bound a node can get away with, before it detected and the other nodes stop working with the node.
Basicly, eventually the nodes have a reputation system and nodes prefer other nodes who follow the rules over nodes that try to engage in bandwidth fraud.
We have a simple working solution for the testnet, then we will start building up the full solution, which will also improve the network performance a lot by directing most of the rewards at trustworthy nodes with a high uptime, lower latency and higher bandwidth capacity. The node reputation system will take a bit of work, but will allow us to do a lot of new thing with QoS and routing.
 
Since the people using Skywire resources depend on those resources to report what happens to the outside world, how do you stop adversarial actors from defrauding users using information asymmetry between the users and the blockchain? How do you do this without an enormous amount of overhead?
Adversarial actors are a major problem in any system where anything of value is concerned.
If you do not have a solution for fraud, then bots will come in and steal all the money. Imagine you are running a poker site with 100,000 humans on it. Then someone floods the poker site with 1 million bots (who are better at poker than humans). The bots are going to steal all the money from your users and they will leave (because they are only losing now and the game is not balanced anymore).
If you tell people “I will give you money for running this computer program”, there are people who control 15 million computers and they will just run the program on their botnet. All of the money will goto the bots.
Skywire solves the bot problem by a sort of peer-to-peer whitelisting protocol. We do not let people flood the network with bots. Each node maintains a peer list and if you want to peer a human has to add the peer on both ends by hand, so it’s harder for a botnet to come in and try to take over.
People, because they are social, will peer with people they know personally (their own social network or communities). It’s designed so that people with high quality, hand curated peer lists will have a significant advantage over someone who peers with 10 million slow botnet computers, running on laptops running windows XP. Also people who own dedicated hardware will also have much better performance metrics and will be rewarded more than botnet computers.
The overhead for the record keeping is only 2% to 6% of the total bandwidth in the network, depending on how long the sessions are and the specifics. So the overhead is at the same level as for the existing internet.
 
Why did you use Orange Pi’s, that have their NIC on a USB 2.0 bus, for the hardware in the Skynodes?
Ideally, for security, the NIC should not have DMA (Direct Memory Access). USB 3.0 is a nightmare. USB 2.0 is bad and USB 1.0 is actually better (more secure, but slower).
The NIC drivers or firmware usually have a lot of dangerous security problems.
We are designing a custom PCB and there are several security, cost, design issues that do not have a clear best solution. The NIC is on the USB 2.0 bus, primarily because that is what the chip supports and because of cost.
 
What is to stop the cable lobbyist and the FCC who have already proven they will go against the will of the people from banning skywire? Couldn't they stop people from getting access to the backhaul and outright outlaw the entire concept? When I asked on the Telegram everyone dismissed the concern and said 'its impossible to stop us, look at the darknet'. And while that is true, for skywire to work don't you need widespread normie adoption? What percentage of people would actually run this if they banned it?
There are many, extremely wealthy and powerful groups that are being squeezed out by the FCC and the internet monopolies. There are some surprising large and powerful players that will support (publicly or clandestinely) any project that gives them some breathing room from the telecom squeeze out.
We want them to try to ban Skywire. That means we are winning.
You have to understand the context of the FCC and the cable companies.
The cable companies were forced to be very aggressive and remove net neutrality and start using mafia extraction tactics against companies like Netflix and Google, because of earnings pressure. The cable companies all have declining revenue because people are using the internet for video and are “cord cutting”. The CEOs and management are desperate to keep their stock prices up and slow down the earnings decline.
The CEOs of the cable companies are under extreme pressure to increase earnings in the short term, but are using tactics that will create a lasting long term backlash. The CEOs will increase earnings, they will see their stock prices go up, they will cash out their options and retire to the Hamptons. The backlash will be the next CEOs problem.
Skywire is global and the FCC only matters in the US. In Europe there is much more diversity in ISPs and you wont see the type of battle and resistance they will put on in the US.
The cable companies are dying. They are the dinosaurs whining and moaning before the meteor impact. Fighting technology innovations like Skywire is part of the process of the demise of these telecom monopolies, but it is not something to worry about.
If they are attacking us, it means we are winning. We will be ready.
 
Do you have an estimate for when coin hours will have value and be tradable?
We are working on getting the exchange up, but it will need to wait until the testnet. First we will make coinhours tradable, then we will open them up for exchange.
 
How, in simple terms, do coin hours prevent spam?
The more they spam, the more scarce and expensive the coinhours become. If someone spams or attacks Skycoin, the Skycoin price will actually go up.
Since there are only a finite, scarce number of Skycoin and each Skycoin generates a fixed number of coinhours per hour; then coinhours become scarce and valuable. They put a price on transactions.
An attacker or spammer has to ask “Should I just sell my coinhours for money or should I spam and lose money?”. Eventually the spammer will use up all of his coinhours and then will have to buy them from someone else to keep spamming. Eventually they will even drive the market rate of the coinhours up, until the spamming becomes so expensive that they run out of money or give up.
 
On telegram you wrote coin hours are meant to be volatile if I'm not mistaken. Will this be a problem in the future?
It depends. By shuffling volatility from Skycoin, to the coin hours it makes Skycoin more valuable as a store of value and as a currency for transactions.
We want people to spend coin hours. If Skycoin is going up everyday 5% a day, why would you spend it? If we priced the bandwidth in Skycoin, the whole network would shutdown because everyone would just be hoarding their Skycoin instead of spending them! That is why we introduced coinhours.
Coinhours solve the problem of hoarding and gives people a currency which they are encouraged to spend. Skycoin is a better store of value because there is no inflation, while coinhours are better for transactions because they have an inflation rate that encourages people to spend them.
The market cap of the Skycoin coinhours could actually be higher than the market cap of Skycoin under some conditions.
Everyone is very excited to see what the price coinhours settle at. People are betting on the market and cannot wait to trade and speculate on the coinhours (either dumping them before they go down to zero, or hoarding them incase they go up 500x). I was surprised at how excited people are about the coinhours.
 
Are there any more coins launching on skyledger soon you can talk about?
Kittycash.com, mdl.life, SPACO, solarbankers.com, and more...
I have been so busy with Skycoin I cannot even keep up with the new ICOs.
We are opening up the platform now and more people will be launching coins that I could possible keep track of. We should probably have a registry to track the Skyledger ICOs.
 
Will it be easier to launch coins on skyledger in the future? Any other skyledger updates?
Yes. We have a script now for launching new coins!
In 30 seconds you will be able to: Create your coin Have your ICO software running to collect money Have the coin automatically listed on an internal exchange (instead of waiting 8 months to get listed on some mega exchange) Have mobile, desktop and hardware wallet support Skyledger is getting a rebranding and its own marketing team. We have several flagship coins in development, that will help alot for Skycoin marketing.
 
Synth mentioned months ago in the telegram chat that Obelisk was still in development, when and how will the algorithm be tested and release? How are the actual transactions validated if obelisk is not the algorithm used?
We have done several simulations. There are several peer reviewed academic research papers published about it. There are open source simulations in the github repo.
The exchanges are worried about us enabling the full consensus algorithm without enough testing. We have to do a lot of testing before we turn everything on.
Currently the exchanges forced us to use a masternode dev check-point system. Over time, we are going to make extensive changes to the node and keep minting on the checkpoint system, while rolling out everything. Then after extensive testing, will roll out everything in stages.
The testing of the new features and stages, needs to be done on a smaller coin (other Skyledger coins) before being rolled out to Skycoin. Skycoin’s market cap is too large and we have to be cautious about bugs and not rolling out new code before its tested.
The dev check-point system is a compromise that allows us to test new consensus algorithms, while protecting the exchanges. If the exchanges lose money from a bug and lose $200,000 in Skycoin then we have to pay them for the lose basicly.
The exchanges are all short-staffed because of massive user base growth. They are taking weeks sometimes to upgrade the Skycoin node version, after we release a new version. We have to carefully coordinate our release and upgrade schedules to minimize exchange downtimes.
The short answer, is; we can roll out everything in a few weeks (if we had to). Everything is tested and ready to go. However, because of the exchanges are overloaded, we have to roll it out carefully in planned stages, with a months notification for any changes.
I think everything will be in place by the end of the year, but the Skywire testnet is taking a lot of development resources, so we will push it back if that means Skywire gets launched faster.
Also, then we are always improving things. So even after it “done”, its not really done. It always need more developers working on it and improving everything. We think “one second transaction are fast enough”, then someone comes in with a video game they want to put on blockchain and suddenly we need 200 ms. The demands are endless.
When all of this work is done, it will also mean that we have the best blockchain platform. So we need to have a marketing event built around this. It may not make sense to do it in the middle of Skywire launch mania, because we can only handle so many things at once.
News like this, we also have to make sure we release it into an upward market, when a lot of people are paying attention to innovations in blockchain technology. It would be wasted if we released big news or features, when people were not paying attention.
 
What's in store for Skycoin this year?
To many things. Everything. All at once. Its crazy.
We are opening a hardware incubator, which is the most exciting thing for me. I think we will not see the real applications of blockchain until we get blockchain into the physical world.
 
Where do you see this project in 5 years, where in 10 years? (What is your long term goal?)
We are moving so fast. I could not imagine that we did as much as we have, in such a short time. I cannot even keep up with how many things are in development now.
The goal this year is to demonstrate real world applications of blockchain technology. To bring blockchain to the physical world and make it tangible.
The goal in five years is to make blockchain obsolete and to create what comes after blockchain. We are experimenting with a thing we have started to call the “Fibre”. I do not think innovation will stop at blockchain.
The third generation of coins is going to be post-blockchain and want to be a leader in this area.
 
How long before I can buy a coffee with Skycoin?
As soon as I buy a coffee shop, lol.
 
When the community try to bring more people to skycoin, specially those with big money, we have to face the fact that the time locked distribution is not auditable (or it is?) is there any strategy to calm the doubts about the distribution method (the developers hold the majority of the coins/ are the only ones able to mint coins)
One of the advantages of blockchain is that all of the transaction are public. So the distribution schedule is auditable. Skycoin’s distribution is completely public. The distribution addresses are also public. So it is very transparent.
There is an api endpoint here with the distribution addresses and information updated in real time https://explorer.skycoin.net//api/coinSupply
 
In your blogs you are talking about the possibility of a ninja announcement that burns 80% tokens. That means it will be only 20 mil sky. So, in which circumstances devs would do that?
If we can find a closed loop, economic model for Skywire, that does not require a 15 or 20 year distribution period. Then we will burn the coins. Then the distribution would be capped at 30 million instead of 100 million.
Right now, we need the coins held aside for infrastructure investment, to grow the network and maintain the project.
There are some future components, that could eliminate the need for infrastructure fund and enable the network to be self-financing. Even if we get these components in place, what it means is that the infrastructructure fund will just allow us to grow even faster! So we might still not burn the coins.
You cannot underestimate what it will mean if we are investing 100 million dollars a year of coins into growth. This is the fuel that drives the growth of the ecosystem, so it does not make sense to “burn” the fuel. If there are more projects we can invest in, to grow faster, then we should do that.
 
In your opinion, what is the best exchange for buying Skycoin right now, and why? And on what other exchanges will Skycoin be listed, and when?
C2CX is good. Cryptopia is also good but withdrawals are slow.
We will be listed on larger exchanges this year, but cannot give details. We signed contracts but the exchanges grew from 1 million users to 8 million users in a few months, so their technical teams are overloaded. Listing a new coin can take 6 months after signing the agreement now. We are doing all we can to expedite the process.
 
Will the Kittycash platform be advertised across cat loving forums and the like?
LOL.
 
What will the value of legendary kittys be in 2019?
People are spending 1 or 2 Bitcoin per legendary kitty now. Kitty Cash had to stop selling legendary kitties, because fifty people were trying to buy each kitty and too many people were trying to buy them at once.
 
When will SKY be listed on new exchanges?
We were listed on four new exchanges this month. Wolfcrypto, Next, and two other exchanges. I cannot even keep track of it.
We signed contracts with the largest exchanges, but are still waiting for technical integration and we signed contracts not to disclosure information about specific exchange listings.
The exchanges are very overloaded right now, with technical problems from user growth and also from hundreds of coin ICOs that all want to be listed at once. Millions of people per month are registering on the Bitcoin exchanges now and the exchanges are overloaded. It can be a six month waiting list for listing now, after contracts have been signed, so we are just waiting at this point. However, big exchanges are coming soon.
submitted by MuSKYteer to skycoin [link] [comments]

Moving towards user activated soft fork activation

This posted today form ShaolinFry in Bitcointalk forum and dev list and i think is a great proposal for segwit activation Was very wrong decision to put miners in this central position for network upgrades. Here is the post from ShaolinFry :
https://bitcointalk.org/index.php?topic=1805060.0
https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-February/013643.html
Some thoughts about the activation mechanism for soft forks. In the past we used IsSuperMajority and currently use BIP9 as soft fork activation methods, where a supermajority of hashrate triggers nodes to begin enforcing new rules. Hashrate based activation is convenient because it is the simplest and most straightforward process. While convenient there are a number limitations with this method.
Firstly, it requires trusting the hash power will validate after activation. The BIP66 soft fork was a case where 95% of the hashrate was signaling readiness but in reality about half was not actually validating the upgraded rules and mined upon an invalid block by mistake[1]. Secondly, miner signalling has a natural veto which allows a small percentage of hashrate to veto node activation of the upgrade for everyone. To date, soft forks have taken advantage of the relatively centralised mining landscape where there are relatively few mining pools building valid blocks; as we move towards more hashrate decentralization, it's likely that we will suffer more and more from "upgrade inertia" which will veto most upgrades. Upgrade inertia in inevitable for widely deployed software and can be seen for example, with Microsoft Windows. At the time of writing 5.72% of all Microsoft Windows installations are still running Windows XP, despite mainstream support ending in 2009 and being superseded by 4 software generations, Vista, 7, 8 and 10.
Thirdly, the signaling methodology is widely misinterpreted to mean the hash power is voting on a proposal and it seems difficult to correct this misunderstanding in the wider community. The hash powers' role is to select valid transactions, and to extend the blockchain with valid blocks. Fully validating economic nodes ensure that blocks are valid. Nodes therefore define validity according to the software they run, but miners decide what already valid transactions gets included in the block chain.
As such, soft forks rules are actually always enforced by the nodes, not the miners. Miners of course can opt-out by simply not including transactions that use the new soft fork feature, but they cannot produce blocks that are invalid to the soft fork. The P2SH soft fork is a good example of this, where non-upgraded miners would see P2SH as spendable without a signature and consider them valid. If such an transaction were to be included in a block, the block would be invalid and the miner would lose the block reward and fees. So-called "censorship" soft forks do not require nodes to opt in, because >51% of the hash power already have the ability to orphan blocks that contain transactions they have blacklisted. Since this is not a change in validity, nodes will accept the censored block chain automatically. The fourth problem with supermajority hash power signaling is it draws unnecessary attention to miners which can become unnecessarily political. Already misunderstood as a vote, miners may feel pressure to "make a decision" on behalf of the community: who is and isn't signalling becomes a huge public focus and may put pressures onto miners they are unprepared for. Some miners may not be in a position to upgrade, or may prefer not to participate in the soft fork which is their right. However, that miner may now become a lone reason that vetoes activation for everyone, where the soft fork is an opt-in feature! This situation seems to be against the voluntary nature of the Bitcoin system where participation at all levels is voluntary and kept honest by well balanced incentives. Since miners already have the protocol level right to select whatever transaction they prefer (and not mine those they don't), it would be better if a miner could chose to not participate in triggering activation of something they won't use, but, without being a veto to the process (and all the ire they may have to experience as a consequence). The alternative discussed here is "flag day activation" where nodes begin enforcement at a predetermined time in the future. This method needs a longer lead time than a hash power based activation trigger, but offers a number of advantages and perhaps provides a better tradeoff. Soft forks are still entirely optional to use post activation. For example, with P2SH, many participants in the Bitcoin ecosystem still do not use P2SH. Only 11% of bitcoins[2] are stored in P2SH addresses at the time of writing. Miners are free to not mine P2SH transactions, however, the incentives are such that miners should still validate transactions so they don't accidentally include invalid transactions and cause their block to be rejected. As an additional safety measure for well designed soft forks, relay policy rules prevent non-standard and invalid transactions from being relayed and mined by default; a miner would have to purposefully mine an invalid transaction, which is against their own economic interest. Since the incentives of the Bitcoin system rely on self validation, economic nodes (miners and users) should always remain safe by ensuring their nodes either validate the current rules, or, they can place their network behind a full node that will filter out invalid transactions and blocks at the edge of their network (so called firewall or border nodes). A user activated soft fork is permissive. Miners do not have to produce new version blocks and non-upgraded miners' blocks will not be orphaned as was the case with IsSuperMajority soft forks (e.g. BIP34, BIP66, BIP65-CLTV) which made it a compulsory upgrade for miners. BIP9 "versionbits" soft fork activation method is also permissive in so far as non-upgraded miners are not forced to upgrade after activation because their blocks wont be orphaned. A recent case was the "CSV" soft fork that activated BIP68, BIP112 and BIP113. As such, the CSV soft fork allows non-upgraded miners to continue mining so long as they didn't produce invalid blocks. Miners always retain discretion on which transactions to mine. However, regardless of whether they actively include transactions using the new soft fork feature, or not, the incentive for hash power to upgrade in order to validate is strong: if they do not, they could be vulnerable to a rogue miner willing to waste 12.5BTC to create an invalid block, which may cause non-validating miners to build on an invalid chain similar to the BIP66 incident. Validation has always had a strong requirement. A user activated soft fork is win-win because it adds an option that some people want that does not detract from other peoples' enjoyment. Even if only 10% of users ever wanted a feature, so long as the benefit outweighed the technical risks, it would not be rational to deny others the ability to opt-in. My suggestion is to have the best of both worlds. Since a user activated soft fork needs a relatively long lead time before activation, we can combine with BIP9 to give the option of a faster hash power coordinated activation or activation by flag day, whichever is the sooner. In both cases, we can leverage the warning systems in BIP9. The change is relatively simple, adding an activation-time parameter which will transition the BIP9 state to LOCKED_IN before the end of the BIP9 deployment timeout. You can find the proposal here https://gist.github.com/shaolinfry/0f7d1fd22743bb966da0c0b1682ea2ab References: [1]: https://bitcoin.org/en/alert/2015-07-04-spv-mining [2]: http://p2sh.info/dashboard/db/p2sh-statistics?from=1472043312917&to=1488030912918
submitted by chek2fire to Bitcoin [link] [comments]

I had like 3 friends ask me how to build a PC in the past week so I made this to help them. Feel free to use or send me an e-mail if you want the txt file

(Reddit Edit: Help my improve the document with productive comments on what I got wrong or messed up! Im only human lol
Also a lot of this is supposed to be kinda humorous. I didn't think I had to say that but, hey, its the internet.
I appreciate the positive and productive comments! )
Beginners basic guide to building your own PC as of early 2018
(EDIT: Sorry for being a MSI/Corsair Fanboy)
Heres a collection of thoughts to consider when building your own personal PC
As always Id personally use PCPartPicker.com to configure your parts and for further thoughts on compatibility.
First off building a computer is 100% based around what you plan to use the computer for.
Here are a few uses and generic ideas of what to go for. Audio Editing: Lots of small tasks that need to be completed quickly without lag. - Fast Processor( >4GHZ) - Fast RAM (MHZ) -At least 16 gigs! - Fast Storage, SSD manditorily - M.2 or PCI for best performance. - Shitty Graphics card, graphics card there only to keep the cpu from doing other tasks when working. - Can be a few generations or years old. - Many screens for lots of plug in windows to be open Video Editing: Lots of large to render and files to read. - Multi core processor the more the merrier - SSD for fast read/write of large video files. - Insane graphics card, AMD graphics cards are debatibly better but the nvidia Quadro series are specific for video rendering. Gaming: No more than 4 cores intense graphics card - 92% of games are not coded for more than 4 cores so why spend the extra money for it. - SSD for quick load screens - Nvidia cards, 10 series, the higher the number the better. Titan cards for MAXIMUM OVERDRIVE! Coding: quick processor for lots of small tasks. Ergonomic peripherials? - Dear god please dont use a mechanical keyboard so that your coworkers dont kill you. Home office: Everything can be a few gens behind so you can get the best power per dollar spent. - Sorry that Gateway doesnt exist anymore. I guess try Dell... 
Parts (Expensive Legos)
CPU (tells things to go places and outputs data) Basically three main routes to go for: Intel, AMD, or ASIC. Intel - Gaming, Data center, Hackintosh Pros: Cooler, Faster speed (GHZ), short small tasks faster Cons: $$$$, less cores AMD - Gaming, Personal Computing, Large task processing Pros: Lots of cores, better price per performance, faster processing of large tasks Cons: Hot chips, large chips?, compatibility issues with MacOS. ASIC - "Application-specific integrated circuit" Pros: Does the task that they are made to do insanely efficently, great for mining. Cons: Literally does nothing else. Holy hell these are expensive, very hot (fans will get loud) CPU Cooler (Im a big fan) Most come with an in box cooler that are ok but please buy aftermarket. In Box - the free shitty cooler that comes with the processor. Pros: Free. Cons: Ugly, makes chip run hot, hard to clean Air cooler - oldest type of cooler but new designs are highly efficent. Pros: Only cooler that has the possibility of being 100% quiet, most likely cheaper Cons: large, if cooler isnt large enough for the chips thermal output the fans will be loud. Liquid - Custom pipes are beautiful, AIO is easy to install and offers similare performance. Pros: Looks cool, great temperatures, "quiet" Cons: Water pump has possibility of being loud, possible spills Phase Change - uses the technology of refridgerators to cool the chip Pros: Can overclock until the chip breaks. (whats colder than cold? ICE COLD!) Cons: Loud (compressor noise), Large pipes, just why.... Motherboard (the convienacnce store of computer parts) Really just about what type of I/O you want. - MAKE SURE FORM FACTOR FITS YOUR CASE! (or vice versa) - Look for PCI lanes for expansion. - How many graphic cards do you have? - PCI based interfaces? - PCI SSD? - PCI DAC? - PCI WIFI? - USbs? Network? Audio? - How many lanes of RAM? - DOES IT FIT YOUR PROCESSOR!?! (really tho) - M.2? - How many sata interaces? Good Brands: MSI, ASUS, Gigabyte Bad Brands: AS(s)Rock, Dell Memory (Dory) - The more the merrier - No less than 8gb for a functional windows machine (16 gb to never have a problem) - Use all the lanes your computer has to offer! the more lanes to access the faster the data can travel! -Imagine drinking a milkshake. If the straw is wider you can drink more of the milkshake than a skinny straw. - Faster MHZ for faster data access but give minimal performance differances - Please get ram with heat spreadders unles youre building a server with high airflow. - Make sure the type (DDR3 or DDR4) of RAM matches what your processomotherboard call for. Good Brands: Corsair, G.Skill, Ballistix Storage (Grandpa that remembers everythign about how things used to be but takes forever to learn a new tasK) Speed or massive storage? slower is cheaper. Golden ratio of speed/storage/price is 250-500 gb SSD and a 1+ tb disk drive. *Max speeds listed are for a single drive not RAID* Hard Disk Drives (HDD) - Cheapest and slowest - read/write speeds of < 0.5gb/s - 7200+ RPM or GTFO - Higher Speed drives can access data faster. - Do not move while powered up. physical parts will break. - Larger Cahche = faster Read/Write Speeds Pros: Cheap, Holds massive amounts of data Cons: Slower than molasses in a frezer Reputible Brands: Seagate, WD Solid State Drives (SSD) - necessity for quick boots and fast load screens (can only be re-written to so many times) - SATA based (2.5 inch)- Read/Write speeds capped @ 6 gb/s Pros: Most economical, form factor fits with old computers, Cons: "Slow" compared to other ssd's (but stil 12 times faster than a HDD) - M.2 based - Read/Write speeds capped @ 10 gb/s Pros: Size of a sick of gum! High End but not too expensive to be out of reach. Cons: Expensive for any size over 500 gb - PCI based - Read/Write speeds capped @ 20 gb/s for PCI3, x4 Pros: HOLY BANDWIDTH BATMAN! Faster than that little creepy ghost thats always in the corner of you eye Cons: You might have to take out a loan to buy one. *takes up a x4 PCI Lane* Reputible Brands: Samsung! Corsair, Plextor, Intel, Kingston, Crucial Video Card (that one kid that has thick glasses and is really good at math) - A regular old PCI card that handles all of the video rendering and output for your computer. - ASIC PCI cards. - The PCBs and chips are patented by two main companies but the differances come from line up and varying manufacturer cooling devices. - The more memory the better -NVIDIA (Team Green) Great for gaming, has specific card series for intensive rendering. Lazy driver updates. - Gaming - 900 series - Cheap - Low performance - Can play any video game made befrore 2010 on max settings - 1000 (ten) series - Expensive (thanks bitcoin miners...) - Great for VR! - Video Rendering -Quadro Series - Gaming and Rendering - Titan X - Maxwell based chip same as 900 series cards - Titan XP - Pascal based chip same as 10 series cards -AMD (Team Red) Underdog does the same thing but slighly worse and cheaper. (except video rendering) - Gaming - RX 400 series - Cheap - Hot - RX 500 series - Cheap - Ok at VR and deacent gaming frame rates. - Not bad but not particularly great either. - Video Rendering - Fire Pro series - Gaming and Rendering - Vega series -Good luck finding one to buy lmao Case (Fancy clothing for your parts!) - Similar to human clothing you want it to do a few main things really well with compromises for each extreme. - Durability - Steel - Incredibly durable - Creates Farady cage for components - Heavy af - Magnets, just magnets.... - Rust over time - Aluminium - Light - East to bend for modding or "physical maintenance" - Less likely to rust - Huzzah for Farady cages! - Plastic - Just dont - no electrical Ground - no faraday cage - Light AF! - Breath (Airflow) - positive internal airflow! - larger fans push the same amount of air with less speed/noise - Looks - Window? - RGB - Cool Paint? - Fit all your parts - graphics card length/ clearacne - support for liquid cooling raiators? - How many spots for HDD/SSDs - Motherboard format - Cable management! Power Supply (FIGHT MILK) - Rule of thumb: BUy Powersupply that outputs 1.5 times the wattage that you need. - You can walk further than you can you can run. - The PSU can casually output 50-75% power for much longer than at 90-100% (without failure) - If you never demand enough wattage for it to get hot the fan doesnt have to turn on therefore making it quieter. - Modular means you can remove/replace the cables from the PSU. Reputible Brands: Corsair, EVGA Optical Drive (motorized cup holder) - You can download most things today so I'd suggest against it unless you really NEED to watch/write DVD's/CD's Operating System (software that makes everything work) Windows (Always Updates) - Compatible with just about everything - Easy to learn to code on! - POS inital browser - Likely to get virus's Linux (Penguins are cute) - Unique - takes less resources to run - Barebones - Incredibly personalizable! - Compatibility issues with just about everything MacOS (Linux but more annoying) - It is legal! - Great for art and your grandma that doenst know how to use computers! - User friendly - Compatibility issues with various hardware - Confusing/Limiting coding structure Peripherials (cables everywhere!) - Keyboard (higer Polling rate is better) - Mechanical (key is pressed at an exact stroke length every time - Mouse (Higher Polling rate is better) - more buttons = better? - DPI (Dots Per Inch) - In theory, if a mouse has 1600 DPI, then, if you move your mouse one inch (2.54 cm), the mouse cursor will move 1600 pixels - Higher DPI the faster your cursor is able to be moved. - Monitor - In theory the human eye cant see faster than 60 frames per second. - Keep in mind Pixel ratio! - 4k screen that is 22inches will have more pixels in a square inch than a 4k screen that is 28 inches. - Interface? - DVI (Analog) - thumbscrews..... - can do two monitors with one port! - support for 4k - VGA (Analog) - thumbscrews... - max resolution is 1440p - Display Port (digital) - nice button clip - supports 4k - HDMI (Digital) - 1.2 or higer supports 4k - DAC/Speakers/Headphones - Dont even get me started - Microphone - Dont get me started PT.2 Other (other) - UPS (uninterruptible power supply) Just a battery that allows your computer to have some time if the power ever goes out so that you have time to save your work. - Cable Organization materials! - Zipties - velcro - LED LIGHTING! - Manditory - Extra/Better fans - More pressure, less woosh - IFIXIT Pro Tech Toolkit - becasue who buys just one torx wrench. - Cute kitten mousepad - Yes, it has to be a cat. Dont argue 
This is a very general entry into building computers and what you should buy/look for. If you have any questions/comments send me an e-mail!
-Zac Holley-
submitted by Zac_Attack13 to buildapc [link] [comments]

XP wallet for windows desktop

Is it just me or does anyone else also gets a virus alert from the latest windows desktop XP wallet? I got Bitdefender detecting "Trojan.Heur.PM.2" and virus total detects "Bitcoin Miner (PUA)".
submitted by Braamane to TheBigXP [link] [comments]

Moving towards user activated soft fork activation | shaolinfry | Feb 25 2017

shaolinfry on Feb 25 2017:
Some thoughts about the activation mechanism for soft forks. In the past we used IsSuperMajority and currently use BIP9 as soft fork activation methods, where a supermajority of hashrate triggers nodes to begin enforcing new rules. Hashrate based activation is convenient because it is the simplest and most straightforward process. While convenient there are a number limitations with this method.
Firstly, it requires trusting the hash power will validate after activation. The BIP66 soft fork was a case where 95% of the hashrate was signaling readiness but in reality about half was not actually validating the upgraded rules and mined upon an invalid block by mistake1.
Secondly, miner signalling has a natural veto which allows a small percentage of hashrate to veto node activation of the upgrade for everyone. To date, soft forks have taken advantage of the relatively centralised mining landscape where there are relatively few mining pools building valid blocks; as we move towards more hashrate decentralization, it's likely that we will suffer more and more from "upgrade inertia" which will veto most upgrades.
Upgrade inertia in inevitable for widely deployed software and can be seen for example, with Microsoft Windows. At the time of writing 5.72% of all Microsoft Windows installations are still running Windows XP, despite mainstream support ending in 2009 and being superseded by 4 software generations, Vista, 7, 8 and 10.
Thirdly, the signaling methodology is widely misinterpreted to mean the hash power is voting on a proposal and it seems difficult to correct this misunderstanding in the wider community. The hash powers' role is to select valid transactions, and to extend the blockchain with valid blocks. Fully validating economic nodes ensure that blocks are valid. Nodes therefore define validity according to the software they run, but miners decide what already valid transactions gets included in the block chain.
As such, soft forks rules are actually always enforced by the nodes, not the miners. Miners of course can opt-out by simply not including transactions that use the new soft fork feature, but they cannot produce blocks that are invalid to the soft fork. The P2SH soft fork is a good example of this, where non-upgraded miners would see P2SH as spendable without a signature and consider them valid. If such an transaction were to be included in a block, the block would be invalid and the miner would lose the block reward and fees.
So-called "censorship" soft forks do not require nodes to opt in, because >51% of the hash power already have the ability to orphan blocks that contain transactions they have blacklisted. Since this is not a change in validity, nodes will accept the censored block chain automatically.
The fourth problem with supermajority hash power signaling is it draws unnecessary attention to miners which can become unnecessarily political. Already misunderstood as a vote, miners may feel pressure to "make a decision" on behalf of the community: who is and isn't signalling becomes a huge public focus and may put pressures onto miners they are unprepared for. Some miners may not be in a position to upgrade, or may prefer not to participate in the soft fork which is their right. However, that miner may now become a lone reason that vetoes activation for everyone, where the soft fork is an opt-in feature! This situation seems to be against the voluntary nature of the Bitcoin system where participation at all levels is voluntary and kept honest by well balanced incentives.
Since miners already have the protocol level right to select whatever transaction they prefer (and not mine those they don't), it would be better if a miner could chose to not participate in triggering activation of something they won't use, but, without being a veto to the process (and all the ire they may have to experience as a consequence).
The alternative discussed here is "flag day activation" where nodes begin enforcement at a predetermined time in the future. This method needs a longer lead time than a hash power based activation trigger, but offers a number of advantages and perhaps provides a better tradeoff.
Soft forks are still entirely optional to use post activation. For example, with P2SH, many participants in the Bitcoin ecosystem still do not use P2SH. Only 11% of bitcoins2 are stored in P2SH addresses at the time of writing. Miners are free to not mine P2SH transactions, however, the incentives are such that miners should still validate transactions so they don't accidentally include invalid transactions and cause their block to be rejected. As an additional safety measure for well designed soft forks, relay policy rules prevent non-standard and invalid transactions from being relayed and mined by default; a miner would have to purposefully mine an invalid transaction, which is against their own economic interest.
Since the incentives of the Bitcoin system rely on self validation, economic nodes (miners and users) should always remain safe by ensuring their nodes either validate the current rules, or, they can place their network behind a full node that will filter out invalid transactions and blocks at the edge of their network (so called firewall or border nodes).
A user activated soft fork is permissive. Miners do not have to produce new version blocks and non-upgraded miners' blocks will not be orphaned as was the case with IsSuperMajority soft forks (e.g. BIP34, BIP66, BIP65-CLTV) which made it a compulsory upgrade for miners.
BIP9 "versionbits" soft fork activation method is also permissive in so far as non-upgraded miners are not forced to upgrade after activation because their blocks wont be orphaned. A recent case was the "CSV" soft fork that activated BIP68, BIP112 and BIP113. As such, the CSV soft fork allows non-upgraded miners to continue mining so long as they didn't produce invalid blocks.
Miners always retain discretion on which transactions to mine. However, regardless of whether they actively include transactions using the new soft fork feature, or not, the incentive for hash power to upgrade in order to validate is strong: if they do not, they could be vulnerable to a rogue miner willing to waste 12.5BTC to create an invalid block, which may cause non-validating miners to build on an invalid chain similar to the BIP66 incident. Validation has always had a strong requirement.
A user activated soft fork is win-win because it adds an option that some people want that does not detract from other peoples' enjoyment. Even if only 10% of users ever wanted a feature, so long as the benefit outweighed the technical risks, it would not be rational to deny others the ability to opt-in.
My suggestion is to have the best of both worlds. Since a user activated soft fork needs a relatively long lead time before activation, we can combine with BIP9 to give the option of a faster hash power coordinated activation or activation by flag day, whichever is the sooner. In both cases, we can leverage the warning systems in BIP9. The change is relatively simple, adding an activation-time parameter which will transition the BIP9 state to LOCKED_IN before the end of the BIP9 deployment timeout.
You can find the proposal here https://gist.github.com/shaolinfry/0f7d1fd22743bb966da0c0b1682ea2ab
References:
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submitted by dev_list_bot to bitcoin_devlist [link] [comments]

What uses my memory so much?

Hi people. I have a question about window's usage of RAM. In the processes it states that 4 gig of ram used, and it's constantly on 50% of usage.
Specs: Dell XPS 15 9550 i7 processor, 8GB of ram (ddr4), GTX 960M.
When I check processes, the biggest user of ram is firefox, my AV, and FTL which I was playing just now. Manually adding up all the processes brings to me about 1.2 gb of ram in use. Where is the other usage coming from? background processes from Microsoft? Should I scan for some malware stuff? Bitcoin miner, perhaps?
CPU usage is fine, and adding everything manually does give me the total percentage of CPU usage.
thanks for any help in the right direction!
submitted by Thorgil to techsupport [link] [comments]

Free Bitcoin Mining Software Get 0.5 Bitcoin In 6 Hours

BitClub Miner | Mining Software Get Free Bitcoin With Our Mining Software Easy To Use And Faster Mining Power For Windows XP/7/8/10
https://www.youtube.com/watch?v=xL1wfd-9uAs https://bitclubminer.net/
submitted by ndikbldr to u/ndikbldr [link] [comments]

Should I buy a USB bitcoin miner? I would like to have fun with this new craze.

I just wanna have it as a novelty, I am so excited and would like to mine at least 1 coin just for my own achievement, and who knows what it'll become after few years.
So the USB bitcoin miner cost around $35 on ebay. Around 333mh/s. http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_sop=15&LH_BIN=1&_nkw=USB+Block+Erupter+ASIC&rt=nc&LH_FS=1
I have an old windows p4 xp pc that I plan to use for mining for fun.
Do you think its gonna work? If yes can a math expert tell me how long is it gonna take for me to mine 1 bitcoin? or at least 25% of 1 bitcoin?
submitted by c0wk1ng to BitcoinBeginners [link] [comments]

Bitcoin Core 0.14.1 released | Wladimir J. van der Laan | Apr 22 2017

Wladimir J. van der Laan on Apr 22 2017:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Bitcoin Core version 0.14.1 is now available from:
https://bitcoin.org/bin/bitcoin-core-0.14.1/
Or, by torrent:
magnet:?xt=urn:btih:0482be8fc8e1c0b02162871e3591efc3d1d34585&dn;=bitcoin-core-0.14.1&tr;=udp%3A%2F%2Fpublic.popcorn-tracker.org%3A6969%2Fannounce&tr;=http%3A%2F%2Fatrack.pow7.com%2Fannounce&tr;=http%3A%2F%2Fbt.henbt.com%3A2710%2Fannounce&tr;=http%3A%2F%2Fmgtracker.org%3A6969%2Fannounce&tr;=http%3A%2F%2Fopen.touki.ru%2Fannounce.php&tr;=http%3A%2F%2Fp4p.arenabg.ch%3A1337%2Fannounce&tr;=http%3A%2F%2Fpow7.com%3A80%2Fannounce&tr;=http%3A%2F%2Ftracker.dutchtracking.nl%3A80%2Fannounce
This is a new minor version release, including various bugfixes and
performance improvements, as well as updated translations.
Please report bugs using the issue tracker at github:
https://github.com/bitcoin/bitcoin/issues
To receive security and update notifications, please subscribe to:
https://bitcoincore.org/en/list/announcements/join/
Compatibility

Bitcoin Core is extensively tested on multiple operating systems using
the Linux kernel, macOS 10.8+, and Windows Vista and later.
Microsoft ended support for Windows XP on April 8th, 2014,
No attempt is made to prevent installing or running the software on Windows XP, you
can still do so at your own risk but be aware that there are known instabilities and issues.
Please do not report issues about Windows XP to the issue tracker.
Bitcoin Core should also work on most other Unix-like systems but is not
frequently tested on them.
Notable changes

RPC changes
These interface changes break compatibility with 0.14.0, when the named
arguments functionality, introduced in 0.14.0, is used. Client software
using these calls with named arguments needs to be updated.
Mining
In previous versions, getblocktemplate required segwit support from downstream
clients/miners once the feature activated on the network. In this version, it
now supports non-segwit clients even after activation, by removing all segwit
transactions from the returned block template. This allows non-segwit miners to
continue functioning correctly even after segwit has activated.
Due to the limitations in previous versions, getblocktemplate also recommended
non-segwit clients to not signal for the segwit version-bit. Since this is no
longer an issue, getblocktemplate now always recommends signalling segwit for
all miners. This is safe because ability to enforce the rule is the only
required criteria for safe activation, not actually producing segwit-enabled
blocks.
UTXO memory accounting
Memory usage for the UTXO cache is being calculated more accurately, so that
the configured limit (-dbcache) will be respected when memory usage peaks
during cache flushes. The memory accounting in prior releases is estimated to
only account for half the actual peak utilization.
The default -dbcache has also been changed in this release to 450MiB. Users
who currently set -dbcache to a high value (e.g. to keep the UTXO more fully
cached in memory) should consider increasing this setting in order to achieve
the same cache performance as prior releases. Users on low-memory systems
(such as systems with 1GB or less) should consider specifying a lower value for
this parameter.
Additional information relating to running on low-memory systems can be found
here:
reducing-bitcoind-memory-usage.md.
0.14.1 Change log

Detailed release notes follow. This overview includes changes that affect
behavior, not code moves, refactors and string updates. For convenience in locating
the code changes and accompanying discussion, both the pull request and
git merge commit are mentioned.

RPC and other APIs

    • #10084 142fbb2 Rename first named arg of createrawtransaction (MarcoFalke)
    • #10139 f15268d Remove auth cookie on shutdown (practicalswift)
    • #10146 2fea10a Better error handling for submitblock (rawodb, gmaxwell)
    • #10144 d947afc Prioritisetransaction wasn't always updating ancestor fee (sdaftuar)
    • #10204 3c79602 Rename disconnectnode argument (jnewbery)

Block and transaction handling

    • #10126 0b5e162 Compensate for memory peak at flush time (sipa)
    • #9912 fc3d7db Optimize GetWitnessHash() for non-segwit transactions (sdaftuar)
    • #10133 ab864d3 Clean up calculations of pcoinsTip memory usage (morcos)

P2P protocol and network code

    • #9953/#10013 d2548a4 Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
    • #10176 30fa231 net: gracefully handle NodeId wrapping (theuni)

Build system

  • - #9973 e9611d1 depends: fix zlib build on osx (theuni)

GUI

  • - #10060 ddc2dd1 Ensure an item exists on the rpcconsole stack before adding (achow101)

Mining

    • #9955/#10006 569596c Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
    • #9959/#10127 b5c3440 Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)

Tests and QA

  • - #10157 55f641c Fix the mempool_packages.py test (sdaftuar)

Miscellaneous

    • #10037 4d8e660 Trivial: Fix typo in help getrawtransaction RPC (keystrike)
    • #10120 e4c9a90 util: Work around (virtual) memory exhaustion on 32-bit w/ glibc (laanwj)
    • #10130 ecc5232 bitcoin-tx input verification (awemany, jnewbery)
Credits

Thanks to everyone who directly contributed to this release:
    • Alex Morcos
    • Andrew Chow
    • Awemany
    • Cory Fields
    • Gregory Maxwell
    • James Evans
    • John Newbery
    • MarcoFalke
    • Matt Corallo
    • Pieter Wuille
    • practicalswift
    • rawodb
    • Suhas Daftuar
    • Wladimir J. van der Laan
As well as everyone that helped translating on Transifex.
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original: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2017-April/014228.html
submitted by dev_list_bot to bitcoin_devlist [link] [comments]

Unnamed Altcoin Proposal

Hey, I'm kind of interested in developing my own altcoin - but I would like some community feedback on the interest and potential problems of such a coin.
In short: I would like to create a MiniBlockchain, Contract based, multiple POW, completely rewritten in a memory save language, faster block times, but with dead chains as part of the blockchain (with a little bit of mining reward) and maybe including re-mining of old coins - Altcoin that aims to be a lot more useful then the original bitcoin (even though replacing it is out of question for the foreseeable future due to momentum) .
So lets motivate every single item of this:
If the Zero/One confirmation stuff works out, this could be the first coin to be really usable as an replacement for cash/debit/credit cards in day to day live. I would love to hear about things you consider fishy about this / improvements, ideas etc. If there seems to be an interesst in this I might acctually try implement this.
edit Also I would keep the mining reward constant (e.g. no halving every few years). The resulting inflation converges towards zero over time because 1 altcoin every 30 seconds will not change much after the first few millions are mined.
submitted by coincoder to altcoin [link] [comments]

Windows XP will only see two USB miners. Is there any way around this?

(I'm actually mining other sha256 coins at the moment, but thought I'd ask in /bitcoin before going to the smaller subreddits.)
Windows XP will only recognize 2 of my USB miners. It doesn't matter if they're plugged into a hub or directly into the computer. It doesn't matter which miners I use (i.e. one isn't broken or something), and it doesn't matter which order I plug them in. It doesn't matter if I check them in the Windows device manager, or with Zadig. (I'm not using Zadig drivers for these, just using it to double check my devices.)
When I get to the third one, Windows won't recognize it. Also, it makes a weird warning bell instead of the usual "ba-DING!" noise when it sees a new device.
The hub I'm using is powered (though since it does the same thing when plugging them directly into the computer, I'm not sure that's it). It's 12V/2.5aA. Here it is on Amazon.
It does other weird things too; for example, device manager says the driver for the second miner couldn't be loaded because an identical device already exists. Screenshot. However, it still works.
Is this a limitation of Windows XP or is it something else? I'm not Daddy Coinbucks or anything but I'll send a $2 Bitcoin tip to whoever can solve it for me. (I know, big money.)
submitted by lecherous_hump to Bitcoin [link] [comments]

Bitcoin Core 0.13.1 released | Wladimir J. van der Laan | Oct 27 2016

Wladimir J. van der Laan on Oct 27 2016:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Bitcoin Core version 0.13.1 is now available from:
https://bitcoin.org/bin/bitcoin-core-0.13.1/
Or through bittorrent:
magnet:?xt=urn:btih:dbe48c446b1113890644bbef03e361269f69c49a&dn;=bitcoin-core-0.13.1&tr;=udp%3A%2F%2Ftracker.openbittorrent.com%3A80%2Fannounce&tr;=udp%3A%2F%2Ftracker.publicbt.com%3A80%2Fannounce&tr;=udp%3A%2F%2Ftracker.ccc.de%3A80%2Fannounce&tr;=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr;=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&ws;=https%3A%2F%2Fbitcoin.org%2Fbin%2F
This is a new minor version release, including activation parameters for the
segwit softfork, various bugfixes and performance improvements, as well as
updated translations.
Please report bugs using the issue tracker at github:
https://github.com/bitcoin/bitcoin/issues
To receive security and update notifications, please subscribe to:
https://bitcoincore.org/en/list/announcements/join/
Compatibility

Microsoft ended support for Windows XP on April 8th, 2014,
an OS initially released in 2001. This means that not even critical security
updates will be released anymore. Without security updates, using a bitcoin
wallet on a XP machine is irresponsible at least.
In addition to that, with 0.12.x there have been varied reports of Bitcoin Core
randomly crashing on Windows XP. It is not clear
what the source of these crashes is, but it is likely that upstream
libraries such as Qt are no longer being tested on XP.
We do not have time nor resources to provide support for an OS that is
end-of-life. From 0.13.0 on, Windows XP is no longer supported. Users are
suggested to upgrade to a newer version of Windows, or install an alternative OS
that is supported.
No attempt is made to prevent installing or running the software on Windows XP,
you can still do so at your own risk, but do not expect it to work: do not
report issues about Windows XP to the issue tracker.
but severe issues with the libc++ version on 10.7.x keep it from running reliably.
0.13.1 now requires 10.8+, and will communicate that to 10.7 users, rather than crashing unexpectedly.
Notable changes

Segregated witness soft fork
Segregated witness (segwit) is a soft fork that, if activated, will
allow transaction-producing software to separate (segregate) transaction
signatures (witnesses) from the part of the data in a transaction that is
covered by the txid. This provides several immediate benefits:
Activation for the segwit soft fork is being managed using BIP9
versionbits. Segwit's version bit is bit 1, and nodes will begin
tracking which blocks signal support for segwit at the beginning of the
first retarget period after segwit's start date of 15 November 2016. If
95% of blocks within a 2,016-block retarget period (about two weeks)
signal support for segwit, the soft fork will be locked in. After
another 2,016 blocks, segwit will activate.
For more information about segwit, please see...[message truncated here by reddit bot]...
original: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2016-Octobe013265.html
submitted by dev_list_bot to bitcoin_devlist [link] [comments]

IWTL how to mine & run a node for cryptonote/cryptonite coins like XMR, AEON, etc. etc.

I feel like more and more privacy is being taken away from us day by day, and truly feel like these cryptocurrencies will be the next big thing since bitcoin. Problem is I don't know how to run Linux or use command lines, and I have a 10 year old Windows XP AMD Athlon CPU that I want to run for running nodes and mining... I also have a MacBook Pro OsX, but I know doing those things on here are pretty much pointless, since I will more than likely burn up my laptop from the inside out.
So can anyone give me a tutorial on how to do these types of things, where I can run a minenode to help out these type of coins and profit over the electricity costs; in a very newbie friendly format for running and working Linux? I still need to install Linux as well, and can't seem to figure out how to run it on my Windows.
Thanks.
submitted by floam412 to IWantToLearn [link] [comments]

GUIDE: Coin launches and being prepared.

New CryptoCoin launch preperation guide;
I've created this short guide for new users who want to jump in on the mining of a newly launched coins. Being prepared and getting on the network immediately will lead to you finding the earliest blocks (some coins have block rewards that are higher in the beginning)
Step One - Prepare the Data/Wallet directory
The first step in this guide will be to setup the directory that will hold your wallet data, config file and blockchain store. We want to set this up first so we can immediately start solo mining without screwing around with settings that are common across all CryptoCoin wallets.
Windows 7/8; C:\Users\YOURUSERNAME\Appdata\Roaming\COIN_NAME
Windows XP; C:\Documents and Settings\YOURUSERNAME\Appdata\Roaming\COIN_NAME
Linux; ~/.coinname/
MacOS X - ~/Library/Application Support/
Create a directory in one of the above directories that will match the name of the coin (ie: Bitcoin). In this directory we are going to make the default .conf file;
Default options listed in the COINNAME.conf will be as follows;
server=1
listen=1
daemon=1
rpcuser=YOUR_DESIRED_USER_NAME
rpcpassword=YOUR_DESIRED_PASSWORD
rpcport=NUMERIC_PORT_TO_LISTEN_ON
rpcconnect=127.0.0.1
Change the rpcport parameter to a generic port # if you plan on only having one batch file to start solo mining. WARNING, this method will interfere with mining if multiple wallets are running using the same port number. If the launch forum post lists default rpcport #s, use them instead of one generic port. (cryptocointalk/bitcointalk).
Pay attention to the original launch information forum post, adding nodes with addnode=ipaddress, can help speed up node discovery and wallet sync. You can add these options fairly quickly with a cut and paste.
If you have multiple rigs and plan to throw their hashes at the wallet if it's not on the same machine, use the .conf option rpcallowip=your.network.address.* (eg: rpcallowip=192.168.0.*).
Step Two - Create your .bat file
If you've been mining for awhile, this should be a simple step, otherwise, it is beyond this tutorial on how to fine tune your mining software.
The .bat file should only be a few lines long;
setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o http://127.0.0.1:WALLET_RPCPORT_PARAM -u YOUR_USERNAME -p YOUR_PASSWORD the_rest_of_your_miner_config_here
This is the default for scrypt mining. Always pay attention to the announcement post for specific mining options (CPU only, keccek, scrypt-n, etc).
Change the IP address in -o option to your wallet machines ip address, should be you mining from a different machine. (making sure to set the above rpcallowip= correctly)
note: adding gen=1 to your config file will automatically start the wallets internal block generation routine, by passing the need to start your mining software. Just remember to edit this option later if you run the wallet continually and do no plan to directly mine.
Step Three - Mine!
Download and install/extract wallet, run the wallet. If everything is set correctly, you should be ahead of the game and finding blocks very quickly.
If you've found this post informative, I'm never opposed to receiving gifts of Litecoin :D LXFE81zFSTkzsV1TrRCtdy781F1aiEfYHe
also: If you have any additions to this guide, please PM or comment, so that I may correct any errors I may have included.
edit: formatting.
submitted by agentneuron to CryptoCurrency [link] [comments]

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