Botcoin: Bitcoin Mining by Botnet — Krebs on Security
The next XVG? Microcap 100x potential actually supported by fundamentals!
What’s up team? I have a hot one for you. XVG returned 12 million percent in 2017 and this one reminds me a lot of it. Here’s why: Mimblewimble is like Blu-Ray compared to CD-ROM in terms of its ability to compress data on a blockchain. The current BTC chain is 277gb and its capacity is limited because every time you spend a coin, each node needs to validate its history back to when it was mined (this is how double spending is prevented). Mimblewimble is different - all transactions in a block are aggregated and netted out in one giant CoinJoin, and only the current spending needs to be verified. This means that dramatically more transactions can fit into a smaller space, increasing throughput and lowering fees while still retaining the full proof of work game theory of Bitcoin. These blockchains are small enough to run a full node on a cheap smartphone, which enhances the decentralization and censorship resistance of the network. The biggest benefit, though, is that all transactions are private - the blockchain doesn’t reveal amounts or addresses except to the actual wallet owner. Unlike earlier decoy-based approaches that bloat the chain and can still be data mined (XMR), Mimblewimble leaves no trace in the blockchain, instead storing only the present state of coin ownership. The first two Mimblewimble coins, Grin and Beam, launched to great fanfare in 2019, quickly reaching over $100m in market cap (since settled down to $22m and $26m respectively). They are good projects but grin has infinite supply and huge never-decreasing emission, and Beam is a corporate moneygrab whose founding investors are counting on you buying for their ROI. ZEC is valued at $568m today, despite the facts that only 1% of transactions are actually shielded, it has a trusted setup, and generating a confidential transaction takes ~60 seconds on a powerful PC. XMR is a great project but it’s valued at $1.2b (so no 100x) and it uses CryptoNote, which is 2014 tech that relies on a decoy-based approach that could be vulnerable to more powerful computers in the future. Mimblewimble is just a better way to approach privacy because there is simply no data recorded in the blockchain for companies to surveil. Privacy is not just for darknet markets, porn, money launderers and terrorists. In many countries it’s dangerous to be wealthy, and there are all kinds of problems with having your spending data be out there publicly and permanently for all to see. Namely, companies like Amazon are patenting approaches to identify people with their crypto addresses, “for law enforcement” but also so that, just like credit cards, your spending data can be used to target ads. (A) Coinbase is selling user data to the DEA, IRS, FBI, Secret Service, and who knows who else? (B) What about insurance companies raising your premiums or canceling your policy because they see you buying (legal) cannabis? If your business operates using transparent cryptocurrency, competitors can data mine your customer and supply chain data, and employees can see how much everyone else gets paid. I could go on, but the idea of “I have nothing to hide, so what do I care about privacy?” will increasingly ring hollow as people realize that this money printing will have to be paid by massive tax increases AND that those taxes will be directly debited from their “Central Bank Digital Currency” wallets. 100% privacy for all transactions also eliminates one HUGE problem that people aren’t aware of yet, but they will be: fungibility. Fungibility means that each coin is indistinguishable from any other, just like paper cash. Why is this important? Because of the ever-expanding reach of AML/KYC/KYT (Anti-Money Laundering / Know Your Customer / Know Your Transaction) as regulators cramp down on crypto and banks take over, increasingly coins become “tainted” in various ways. For example, if you withdraw coins to a mixing service like Wasabi or Samourai, you may find your account blocked. (C) The next obvious step is that if you receive coins that these chainalysis services don’t like for whatever reason, you will be completely innocent yet forced to prove that you didn’t know that the coins you bought were up to no good in a past life. 3 days ago, $100k of USDC was frozen. (D) Even smaller coins like LTC now have this problem, because “Chinese Drug Kingpins” used them. (E) I believe that censorable money that can be blocked/frozen isn’t really “your money”. Epic Cash is a 100% volunteer community project (like XVG and XMR) that had a fair launch in September last year with no ICO and no premine. There are very few projects like this, and it’s a key ingredient in Verge’s success (still at $110m market cap today despite being down 97% since the bubble peak) and why it’s still around. It has a small but super passionate community of “Freemen” who are united by a belief in the sound money economics of Bitcoin Standard emission (21m supply limit and ever-decreasing inflation) and the importance of privacy. I am super bullish on this coin for the following reasons:
Only $400k market cap
Supply started at zero, so there are no VC’s and team to dump on you into the pumps - all coins are mined into existence, just like Bitcoin.
It just had its first halving, reducing emission from 16 to 8 per block. Between now and 2028 there are FOUR (!) more halvings, from 4 to 2 to 1 and then finally 0.15 (I guess that would be an 85%-ing :p) and at this point the supply is the same as BTC and stays in sync forever until the last coin is mined in 2140. This simple supply curve is already accepted by the market as a winner, so why mess with success? (I)
Meets Andreas Antonopolous’ 5 pillars of open blockchains test: Public, Open, Borderless, Neutral, and Censorship Resistant. (How many coins can say this?)
Unlike Bitcoin, Epic created a multi-algorithm approach that enables people to mine on ordinary computers - 60% for CPU on RandomX, 38% for GPU on ProgPow, and 2% for ASIC’s on Cuckoo31+. The algorithms don’t compete with one another. This is essential for leveling the playing field and preventing massive farms from dominating. These percentages can change over time and new algorithms can be easily dropped in. You can mine today using an old laptop and in 5 years you will still be able to. Incidentally, there is nothing standing in the way of adding mobile phone-based mining, which ETN showed there’s a huge demand for.
Based off the excellent Grin codebase, which means they continue to pull in ongoing core code enhancements and focus on ease of use and market penetration instead. (Smart!)
Litecoin’s Charlie Lee is out there daily talking about their move to Mimblewimble, which provides free publicity. What people don’t realize is that you can’t just bolt on Mimblewimble to a legacy blockchain, that’s like putting a Ferrari engine into a school bus - it’s still a school bus, not a race car! LTC is doing it as an optional soft fork via “extension blocks” which will not be supported by all wallets and exchanges. Also, anyone using “optional” privacy features is declaring themselves to be suspicious, which kind of defeats the point for people who care about privacy.
The community is friendly and welcoming to new people coming in, with lots of helpful (independently created) tutorials and guides. (F)
It’s already a global phenomenon, with the whitepaper in 20+ languages (G) and (not bot-infested) active local-language communities on not only Telegram but also Wechat, LINE, QQ and other messenger platforms.
It’s only on two random little exchanges currently, Citex and Vitex. Vitex is actually a pretty good DEX with no KYC and a great mobile wallet.
They are very creative - since centralized exchanges want huge money to list, they created a non-inflationary ERC20 tracker token that’s exchangeable 1:1 for coins so that Uniswap trading is possible (H)
Because it doesn’t have a huge marketing budget in a sea of VC-funded shitcoins, it is as-yet undiscovered, which is why it’s so cheap. There are only 4 Mimblewimble-based currencies on the market: MWC at $162m, BEAM at $26m, GRIN at $22m, and EPIC at $0.4m. This is not financial advice and as always, do your own research, but I’ve been buying this gem for months and will continue to. This one ticks all the boxes for me, the only real problem is that it’s hard to buy much without causing a huge green candle. Alt season is coming, and coins like this are how your neighbor Chad got his Lambo back in 2017. For 2021, McLaren is a better choice and be sure to pay cash so that it doesn’t get repossessed like Chad!
About SUNWebsite | Explorer SUN is a social experiment, which focuses on the DeFi potential of TRON. Designed as the quintessential Bitcoin equivalent on the TRON network, SUN features zero VC investments, with zero PE investments, no pre-mining or reserves for the team, and is wholly operated by the community through its open-source smart contracts. Details
As a global and professional cryptocurrency exchange service provider, CoinEx was founded in December 2017 with Bitmain-led investment and has obtained a legal license in Estonia. It is a subsidiary brand of the ViaBTC Group, which owns the fifth largest BTC mining pool, which is also the largest of BCH mining, in the world. CoinEx supports perpetual contract, spot, margin trading, and other derivatives trading, and its service reaches global users in nearly 100 countries/regions with various languages available, such as Chinese, English, Korean and Russian. Click hereto register on CoinEx Reach CoinEx on TELEGRAM | TWITTER | FACEBOOK | WEBSITE | API| DOWNLOAD APP|
The importance of being mindful of security at all times - nearly everyone is one breach away from total disaster
This is a long one - TL;DR at the end!
If you haven't heard yet: BlankMediaGames, makers of Town of Salem, have been breached which resulted in almost 8 million accounts being leaked. For most people, the first reaction is "lol so what it's just a game, why should I really care?" and that is the wrong way to look at it. I'd like to explain why everyone should always care whenever they are part of a breach. I'd also like to talk about some ways game developers - whether they work solo or on a team - can take easy steps to help protect themselves and their customers/players. First I'd like to state that there is no practical way to achieve 100% solid security to guarantee you'll never be breached or part of a breach. The goal here will be to get as close as possible, or comfortable, so that you can rest easy knowing you can deal with problems when they occur (not if, when).
Why You Should Care About Breaches
The sad reality is most people re-use the same password everywhere. Your email account, your bank account, your steam account, your reddit account, random forums and game websites - you get the idea. If you haven't pieced it together yet the implication is that if anyone gets your one password you use everywhere, it's game over for you - they now own all of your accounts (whether or not they know it yet). Keep in mind that your email account is basically the holy grail of passwords to have. Most websites handle password changes/resets through your email; thus anyone who can login to your email account can get access to pretty much any of your accounts anywhere. Game over, you lose.
But wait, why would anyone want to use my password? I'm nobody!
It doesn't matter, the bad guys sell this information to other bad guys. Bots are used to make as much use of these passwords as possible. If they can get into your bank they might try money transfers. If they get into your Amazon account they might spin up $80,000 worth of servers to mine Bitcoin (or whatever coin is popular at the time). They don't care who you are; it's all automated. By the way, according to this post (which looks believable enough to be real) this is pretty much how they got into the BMG servers initially. They checked for usernames/emails of admins on the BMG website(s) in previous breach dumps (of which there are many) and found at least one that used the same password on other sites - for their admin account! If you want to see how many of your accounts are already breached check out Have I Been Pwned - I recommend registering all of your email addresses as well so you get notified of future breaches. This is how I found out about the Town of Salem breach, myself.
How You Can Protect Yourself
Before I go into all the steps you can (and should) take to protect yourself I should note that security is in a constant tug of war with convenience. What this means is that the more security measures you apply the more inconvenienced you become for many tasks. It's up to you to decide how much is too much either way. First of all I strongly recommend registering your email(s) on https://haveibeenpwned.com/ - this is especially important if your email address is associated to important things like AWS, Steam developer account, bank accounts, social media, etc. You want to know ASAP when an account of yours is compromised so you can take steps to prevent or undo damage. Note that the bad guys have a head start on this!
You probably need to have better password hygiene. If you don't already, you need to make sure every account you have uses a different, unique, secure password. You should change these passwords at least once a year. Depending on how many accounts you have and how good your memory is, this is your first big security vs convenience trade-off battle. That's easily solved, though, by using a password manager. You can find a list of password managers on Wikipedia here or you can search around for some comparison articles. Some notable choices to consider:
1Password - recommend by Troy Hunt, creator of Have I Been Pwned
LastPass - I use this at work and it's generally good
BitWarden - free and open source! I use this at home and in some ways it's better than LastPass
KeePass (and forks) - free, open source, and totally offline; if you don't trust "the cloud" you can trade away some more convenience in exchange for taking full responsibility of your password security (and backups)
Regardless of which one you choose, any of them is 100x better than not using one at all.
The problem with all these passwords is that someone can still use them if they are found in a breach. Your passwords are only as strong as the website you use them on. In the case of the BMG breach mentioned above - all passwords were stored in an ancient format which has been insecure for years. It's likely that every single password in the breach can be reversed/cracked, or already have been. The next step you need to take is to make it harder for someone else to login with your password. This is done using Multi-Factor Authentication (or Two-Factor Authentication). Unfortunately not every website/service supports MFA/2FA, but you should still use it on every single one that does support it. You can check which sites support MFA/2FA here or dig around in account options on any particular site. You should setup MFA/2FA on your email account ASAP! If it's not supported, you need to switch to a provider that does support it. This is more important than your bank account! All of the big email providers support it: GMail, Outlook.com, Yahoo Mail, etc. The type of MFA/2FA you use depends on what is supported by each site/service, but there is a common approach that is compatible on many of them. Most of them involve phone apps because a phone is the most common and convenient "thing you have" that bad guys (or anyone, really) can't access easily. Time-based One-time Password or TOTP is probably the most commonly used method because it's easy to implement and can be used with many different apps. Google Authenticator was the first popular one, but it has some limitations which continue the security vs convenience battle - namely that getting a new phone is a super huge chore (no backup/restore option - you have to disable and setup each site all over again). Many alternatives support cloud backup which is really convenient, though obviously less secure by some measure. Notable choices to consider:
Authy - probably the first big/popular one after Google Authenticator came out (I think) - NOTE: They let you use it on your desktop/browser, too, but this is TOO much convenience! Don't fall for that trap.
LastPass Authenticator - conveniently links up with a LastPass account, some sites support extra features (like not needing to type a code, just answer a phone notification)
Yubikey - A real physical MFA device! Some models are compatible with phones, too.
Duo - this one is more geared towards enterprise, but they have a free option
Some sites/services use their own app, like Blizzard (battle.net) and Steam, and don't allow you to use other ones. You will probably have a few apps on your phone when all your accounts are setup, but it's worth it. You'll definitely want to enable it on your password manager as well if you chose a cloud-based one. Don't forget to save backup codes in an actual secure location! If you lose your backup codes and your auth app/physical key you will be locked out of accounts. It's really not fun recovering in that situation. Most recommendations are to print them and put in a fireproof safe, but using some other secure encrypted storage is fine. There is such a thing as bad MFA/2FA! However, anything is at least better than nothing. A lot of places still use SMS (text messaging) or e-mail for their MFA/2FA implementation. The e-mail one has the most obvious flaw: If someone gets into your email account they have defeated that security measure. The SMS flaws are less obvious and much less likely to affect you, but still a risk: SMS is trivial to intercept (capture data over the air (literally), clone your SIM card data, and some other methods). Still, if you're not a person of interest already, it's still better than nothing.
What Does This Have To Do With GameDev?
Yeah, I do know which subreddit I'm posting in! Here's the section that gets more into things specific to game development (or software development in general).
Secure Your Code
Securing your code actually has multiple meanings here: Securing access to your code, and ensuring your code itself is secure against exploitation. Let's start with access since that's the easier topic to cover! If you're not already using some form of Source Control Management (SCM) you really need to get on board! I'm not going to go in depth on that as it's a whole other topic to itself, but I'll assume you are using Git or Mercurial (hg) already and hosting it on one of these sites (or a similar one):
First, ensure that you have locked down who can access this code already. If you are using private repositories you need to make sure that the only people who have access are the people who need access (i.e. yourself and your team). Second, everyone should have strong passwords and MFA/2FA enabled on their accounts. If 1 person on the team does not follow good security practices it puts your whole project at risk! So make sure everyone on the team is following along. You can also look into tools to do some auditing and even automate it so that if anyone's account becomes less secure over time (say they turned off MFA one day) they would automatically lose their access. Additionally you should never commit secrets (passwords, API keys, tokens, social security numbers, etc) to your code repository. Probably 90% of cases where people have their AWS/Google Cloud/Azure accounts compromised and racking up huge bills for bitcoin mining is due to having their passwords/keys stored in their git repo. They either accidentally made it public or someone got access to the private repo through a compromised account. Never store sensitive information in your code repository! Next topic: Securing your code from vulnerabilities. This one is harder to talk about for game dev as most engines/frameworks are not as susceptible (for lack of a better word) to these situations as others. In a nutshell, you need to keep track of the following:
Is my code doing anything "dangerous"? (system-level stuff, memory access, saving passwords anywhere)
Could someone get the keys to the kingdom (API key, server password, etc) by just opening Cheat Engine and looking at memory values? Or doing a strings/hex edit/decompile/etc on my game executable?
Am I using outdated libraries/framework/engine? Do they have any known security bugs?
Secure Your Computer
I'm not going to go in depth on this one because at this point everyone should have a handle on this; if not there are limitless articles, blogs, and videos about the how/what/why. In summary: Keep everything updated, and don't open suspicious links.
Lock your computer when idle - use a password (or PIN or face unlock or whatever your OS uses) - no one should ever be able to walk up to your computer and use it if you're not looking, nor should they be able to get in if they grabbed your closed laptop off the table at starbucks (thanks u/3tt07kjt for reminding me of this one)
Use full disk encryption (especially on laptops)
Update your OS for security updates ASAP
Use anti-virus (yes, Windows Defender is fine) and keep it updated
Update your web browser ALWAYS (this is your 99% chance attack vector, so don't postpone it!)
Don't install browser extensions that you don't need - a LOT of extensions are either malware from the start or become malware later (my favorite emoji extension started mining bitcoins, FFS!) - check reviews regularly after extensions update
DO use adblock and privacy extensions - ads are a common attack vector - I recommend uBlock Origin and Privacy Badger at a minimum (note that some legit sites can break and so you'll have to fiddle with settings or whitelist)
Don't open suspicious or unknown links on e-mail, social media, discord, etc (be sure to hover over the links in this post before clicking them)
Don't open attachments, ever - unless you were expecting it from that person at that time
Don't fill out ANY forms (comments, login, registration, etc) on websites that don't have HTTPS (secure) connection - your browser will show this in the address bar, usually
In general, be suspicious of everything that comes from people you don't know - and even from people you do know if it was unexpected
E-Mail is (probably) the least secure form of communications ever invented - so try not to use it for sensitive things
Secure Your Website
I will have to add more to this later probably, but again there are tons of good articles, blogs, and videos on these topics. Hopefully the information in this section is enough to get you on the right track - if not feel free to ask for more info. Lots of guides can be found on Digital Ocean's site and they are relevant even if you don't use DO for your servers.
Use HTTPS (SSL/TLS) secure connections - it's FREE and EASY thanks to Let's Encrypt
KEEP EVERYTHING UPDATED - automate as much as you can
If you have control over the server, you MUST update the OS, the web server, and any backend application servers/languages/frameworks involved. Equifax breach was due to having out of date server software. BMG breach was worsened by having out of date server software. YOU MUST STAY UPDATED, ALWAYS
Don't store sensitive personal information - it's a huge pain to be PCI compliant, it's a huge fine if you mess it up - avoid storing any customer information that you don't actually need (see also: GDPR )
Do not allow access to SSH/Remote desktop/Database services from the whole world; the general public should only ever be able to reach ports 80 and 443 on your web server (and 80 should permanently redirect to HTTPS)
Use SSH keys instead of passwords on Linux servers
Don't run your own email server - it's just not worth it; use google apps for business, office 365, zoho, or something else for business email
Secure your domain registrar account! Don't lose your domain to a bad password or lack of MFA/2FA or an old email address! If your registrar doesn't support actual security then transfer to one that does. (namecheap, namesilo, google domains, amazon aws route53, even godaddy, the absolutely worst web company, has good security options)
A lot of this will apply to your game servers as well - really any kind of server you expect to setup.
That's it, for now
I ran out of steam while typing this all up after a couple hours, but I may revisit it later to add more info. Feel free to ask any questions about any of these topics and I'll do my best to answer them all.
TL;DR (y u words so much??)
Use a password manager so you can have different, random, secure passwords on every account on every website/service/game
Use MFA/2FA on every account, if possible
Lock your computer when idle/away
Use full disk encryption on laptops
Update your operating system (we all hate Windows Update, but it really is for our own good)
Use anti-virus (Windows Defender is fine)
Update your browser
Use good adblockeprivacy blocker browsers extensions
Don't use browser extensions that you don't really need (they could be a trojan horse of bitcoin mining later)
Don't trust anything sent by anyone, unless you were expecting it and know it's safe
E-mail is the least secure form of communications in use these days; don't trust it for sensitive things
Use source control for your game code (git, mercurial, etc)
Lock down access to your source code
Don't put secrets (passwords, API keys/tokens, social security numbers, credit card numbers) in your code repository
Don't do dumb things like store your AWS keys in your game for players to just find with simple tools
Check your code dependencies for security bugs, update them when needed
Use HTTPS on your website
Update your web server OS and software
Use secure password storage (don't reinvent this wheel, it's been solved by way smarter people)
Use SSH keys instead of passwords for Linux servers
Use a firewall to block the world from getting in with SSH/Remote desktop/database direct connections
Only allow your own IP address (which can change!) into the server for admin tasks
Don't run your own email server, let someone who knows what they are doing handle that for you
Secure your domain registrar account, keep email address up to date
... in general... in general... in general... I sure wrote those 2 words a lot.
Why Should I Trust This Post?
Hopefully I have provided enough information and good links in this post that you can trust the contents to be accurate (or mostly accurate). There is certainly enough information to do some searches on your own to find out how right or wrong I might be about these things. If you want my appeal to authority answer: I've been working at a major (network/computer) security company for almost 7 years as a software developer, and I've had to put up with pretty much every inconvenience brought on by security. I've also witnessed the aftermath of nearly every type of security failure covered in this post, via customers and the industry at large. None of the links I used are related to my employer or its products. Edit: Fixed some typos and added some more links More edit: added a few more points and links
Hey everyone, I wanted to take the time to keep the newcomers informed on the project and where we stand. For a more detailed look into our statistics, you can inquire here: ( https://btcsovstats.github.io/BSOV-Stats/?page=stats ). Our achievements and progress are noted as follows: - Since joining Telegram and creating the BitcoinSoV Community, we have amassed over 220+ users in very little time. There are several administrators who are tasked with helping moderating this Sub-Reddit, along with moderating Telegram. - The mining pool @ https://bsov-pool.hashtables.net:8443 has been extremely successful with over 30+ miners contributing to the pool! - We are running promotional airdrops which include tasks to complete for community members. We are giving away 30 drops worth 50 BSOV each for community members who post on our bitcointalk thread, our Facebook page, and follow/like/retweet our tweets on twitter. I have posted a screenshot of the contest rules, but you can see the contest details in our Telegram as well! - We have rolled out a tutorial listed here on this sub-Reddit, which is also available here: https://www.reddit.com/BitcoinSoV/comments/ce2he0/bitcoinsov_google_cloud_instance_mining_tutorial/ - As of 11pm 7/16/19, a TIP-BOT was implemented in Telegram and it is currently in working order. Details are available in Telegram chat. - There is also a Burn-bot, which displays the burn amount of every transaction that takes place to help the community visualize the frequency and overall quantity of the burn. (Might be my favorite feature thus far!) - While this coin is not available for purchase on a centralized exchange, we have buy sell orders listed on ForkDelta. While we are mining the coin and achieving mass distribution to the miners who join the pool, we are strategically planning when and where we may potentially list our coin. - As a community that believes in teamwork, we are always listening and inquiring about our communities ideas and potential contributions. I cannot stress this enough, if you feel as though you have something to offer or you have an idea that you want to pitch, please ask away or volunteer to help. We understand that a strong, interactive and innovative community will be integral in the growth of the project. Teamwork makes the dream-work! Thank you for reading. Hopefully this was informative to those inquiring about the project. There's a lot more where this came from and we will be updating this thread along with our other forms of media with important updates, news, and more. We look forward to hearing from any and all of those interested in the project. All are welcome and respected!!!!!!!!
how to shibecoin v rich in minutes much instruct so simple any doge can do
UPDATE 1/21/14: I'm not updating this guide anymore. Most of the steps should still work though. See the wiki or check the sidebar for updated instructions. Before you do anything else, you need to get a wallet. Until there's a secure online wallet, this means you need to download the dogecoin client. Now open the client you just downloaded. You'll be given a default address automatically, and it should connect to peers and start downloading the dogechain (aka blockchain in formal speak). You'll know because there will be a progress bar at the bottom and at the lower right there should be a signal strength icon (TODO: add screenshots). If you've waited 2 or 3 minutes and nothing is happening, copy this:
And paste it into a new text file called dogecoin.conf, which you then place into the dogecoin app directory.
On Windows this is C:\Users\[YOUR_USER]\AppData\Roaming\DogeCoin
On Macs it's ~/Library/Application Support/DogeCoin
Now restart your qt client and the blockchain should start downloading in about 1-2 minutes. Once it finished downloading, you're ready to send and receive Dogecoins!
Decide how you want to get Dogecoin. Your options are:
I'll go into detail about each of these. I'm currently writing this out. I'll make edits as I add sections. Suggestions are welcome.
Mining is how new dogecoins are created. If you're new to crypto currencies, read this. To mine (also called "digging"), a computer with a decent GPU (graphics card) is recommended. You can also mine with your CPU, but it's not as efficient.
These instructions cover only Windows for now. To mine, you'll need to figure out what GPU you have. It'll be either AMD/ATI or Nvidia. The setup for both is approximately the same.
Step One: Choose a pool
There's a list of pools on the wiki. For now it doesn't really matter which one you choose. You can easily switch later. NOTE: Youcanmineintwoways.Solominingiswhereyouminebyyourself.Whenyoufindablockyougetallthereward.Poolminingiswhenyouteamupwithotherminerstoworkonthesameblocktogether.Thismakesitmorelikelythatyou'llfindablock,butyouwon'tgetallofit,you'llhavetosplititupwithothersaccordingtoyourshareofthework.Poolminingisrecommendedbecauseitgivesyoufrequentpayouts,becauseyoufindmoreblocks.Thelargerthepoolyoujoin,themorefrequentthepayouts,butthesmallertherewardyouget. Overalongperiodoftimethedifferencebetweenpoolandsolomininggoesaway,butifyousolomineitmightbemonthsbeforeyougetanycoins.
Step two: Set up pool account
The pool you chose should have a getting started page. Read it and follow the instructions. Instructions vary but the general idea is:
Create an account
Create a worker under the account
Grab the mining URL (usually on the getting started page)
Setup your cash out options in your account settings by entering one of your wallet's receiving addresses
When you're done with this, you'll need to know:
Your account, worker name, and worker password
The mining (stratum) URL (usually the pool's URL followed by a port)
Step three: Download mining software
For best performance you'll need the right mining software.
Create a text file in the same folder as your miner application. Inside, put the command you'll be running (remove brackets). For AMD it's cgminer.exe --scrypt -o stratum+tcp://: -u -p For Nvidia it's cudaminer.exe -o stratum+tcp://: -O : Substitute the right stuff in for the placeholders. Then on the next line of the text file type pause. This will let you see any errors that you get. Then save the file with any name you want, as long as the file extension is .bat. For example mine_serverName.bat.
Step five: Launch your miner
Just open the .bat file and a command line window should pop up, letting you know that the miner is starting. Once it starts, it should print out your hash rate. If you now go to the pool website, the dashboard should start showing your hashrate. At first it'll be lower than what it says in the miner, but that's because the dashboard is taking a 5 minute average. It'll catch up soon enough. NOTE: Anormalhashrateisbetween50Kh/suptoeven1Mh/sdependingonyourGPU.
You're now mining Dogecoins
That's it, nothing more to it.
CPU mining isn't really recommended, because you'll be spending a lot on more on power than you'd make from mining Dogecoin. You could better spend that money on buying Dogecoin by trading. But if you have free electricity and want to try it out, check out this informative forum post.
Trading has been difficult so far, but Dogecoin just got added to a few new exchanges. If you don't have a giant mining rig, this is probably the best way to get 100k or more dogecoins at the moment. I'll write up a more complete guide, but for now check out these sites:
Faucets are sites that give out free coins. Usually a site will give out somewhere between 1 and 100 Dogecoin. Every site has its own time limits, but usually you can only receive coins once every few hours, or in some cases, days. It's a great way to get started. All you do is copy your address from the receive section of your wallet and enter it on some faucet sites. Check out /dogecoinfaucets for more. If you go to each site on there you might end up with a couple hundred Dogecoin!
This method is pretty straightforward. Post your receiving address, and ask for some coins. Such poor shibe. The only catch is, don't do it here! Please go to /dogecoinbeg.
Other redditors can give you Dogecoin by summoning the tip bot, something like this: +dogetipbot 5 doge This might happen if you make a good post, or someone just wants to give out some coins. Once you receive a tip you have to accept it in a few days or else it'll get returned. Do this by following the instructions on the message you receive in your inbox. You reply to the bot with "+accept". Commands go in the message body. Once you do that, the bot will create a tipping address for you, and you can use the links in the message you receive to see your info, withdraw coins to your dogecoin-qt wallet, see your history, and a bunch of other stuff. As a bonus, so_doge_tip has a feature where you can get some Dogecoins to start with in exchange for how much karma you have. To do this, send the message "+redeem DOGE" to so_doge_tip. You'll need to create a tipping account if you don't have one. If you want to create a tipping account without ever being tipped first, message either of the bots with "+register" and an address will be created for you.
1/21/14 - Added note about this thread no longer being updated
1/21/14 - Changed wallet links to official site
12/27/13 - Added 1.3 wallet-qt links
12/21/13 - Added new windows 1.2 wallet link
12/20/13 - Fixed +redeem text
12/18/13 - Added short blurb on trading.
12/18/13 - Updated cudaminer to new version (cudaminer-2013-12-18.zip).
ArcaneWharf and I have put this post together quickly so that we have a resource which we can point newcomers towards in order to answer their frequently answered questions. This should serve as more of an overview or quick-start guide which is a jumping off point for beginners, rather than a comprehensive or complete guide. This is a work-in-progress (i.e., definitely not perfect) which, as a community, we could expand and improve upon over time. If you have something to contribute (either to this or something more detailed), do comment in this thread or contact the mods (by sending a message to /BitcoinUK).
How can I learn more about bitcoin?
There are already some links in /BitcoinUK’s sidebar which should help you get started. If that’s not enough, check out:
We'd encourage you to at least understand the basics before making your first bitcoin purchase. There are tons of fantastic resources out there, so there’s no excuse for ignorance.
How do I buy bitcoin?
The answer depends on your priorities, as there tends to be a trade-off between more convenient, quicker options (which are more expensive) and less convenient, slower options (which are cheaper).
Purchasing with a credit or debit card on Coinbase is the best starting point for beginners, as it offers a great user experience. There's a quick guide here, but you probably won't need it as the sign-up and purchase process is quite intuitive. If you're having issues with verification on Coinbase (or it's just taking too long), then you might want to check out the options described in the ‘high fees, but faster’ section below. For subsequent purchases, check out the options described in the next two sections. Although the ‘no fees, but slower’ purchase route is popular and well recommended on /BitcoinUK, you shouldn’t automatically rule out the options described in the ‘high fees, but faster’ section.
No fees, but slower
The Revolut to GDAX route is frequently recommended in the /BitcoinUK community, as it eliminates fees and allows you to purchase bitcoin at the best possible price. Keep in mind that this route won’t work on weekends, as SEPA transfers only get pushed through during normal working hours (i.e., Monday AM till Friday PM). If you’re looking to purchase on weekends, then you’ll have to use the options described in the following section. You can finds details about this purchase route in this text guide and this video guide Summary of this process:
Sign up for Coinbase and Revolut.
Transfer GBP into your Revolut GBP account.
Activate your EUR wallet
Convert GBP to EUR in Revolut (FREE)
Send EUR to Coinbase (FREE)
Transfer EUR from Coinbase to GDAX (FREE)
Buy bitcoin on the BTC/EUR market.
High fees, but faster
If you’re willing to pay a premium (i.e., pay above market-rate), then you can buy bitcoin quickly and conveniently with GBP UK bank transfers and debit/credit card purchases. The premium charged by these options is usually under 5%, but can extend beyond that during times of high demand and (positive) price volatility. Unlike the Revolut to GDAX route, these options also allow you to complete purchases on weekends. Popular, frequently recommended options which are quick and convenient include:
Prices offered across these services vary day-to-day. For an overview of your options (and their relative competitiveness), you should check out BittyBot.co. This provides a full list of merchants and marketplaces available, ordered by price (cheapest first). You can also filter the output by payment method by typing it into the 'Search' box. Some users may prefer to take this faster route if they are convinced the price of bitcoin will increase during the time it would take for a transfer to process from Revolut to GDAX (using the method detailed in the previous section). This can pay off, but be cautious. The volatility of bitcoin makes it a double-edged sword and its price could just as easily go down (drastically) as it could go up.
What's the best way to sell bitcoin?
You can sell bitcoins back to the majority of sites which you buy them from. As before, there's a trade-off between the quicker and slower options. If you're looking to get a price which is closest to the market rate (and pay as few fees as possible), then you'll want to sell through an exchange like GDAX, exchanging your bitcoin for euros. GDAX is preferable when you're selling, as the price you'll get per bitcoin is higher. Essentially, just reverse the process detailed earlier in the FAQ (see this text guide or this video guide). Alternatively, check out this quick 3-minute video which walks you through the process. Summary of this process:
On GDAX, click ‘Withdraw Funds’ while in the EUBTC market
Transfer to your Coinbase Account (FREE)
Go to Coinbase > Accounts > Euro Wallet > Withdraw
On Revolut, go into your Euro wallet > Top Up > Bank Transfer > EUR
Note down the IBAN and BIC from Revolut, and enter them into Coinbase. Also include the amount you wish to withdraw.
Withdraw funds into Revolut (15p charge)
Once funds are in your Revolut EUR account, exchange from EUR to GBP (FREE)
Go to GBP wallet > send funds. Add yourself as a beneficiary.
Send the funds! (free)
If you sell bitcoin on Localbitcoins, Solidi, etc., you can get it sorted same-day (usually in less than an hour) with a transfer directly to your UK bank account in GBP. For that convenience, you'll usually get offered an exchange rate which is below the market-rate (usually up to 5%, but sometimes more). You are able to set your own sell orders on Localbitcoins or BitBargain (so you’ll be able to sell above market rate). However, we would not advise doing this as a newcomer. Of course, you could always just withdraw directly from an exchange to your UK bank account. Again, you'll lose a percentage of your funds (>1%) in the foreign exchange conversion (from EUR to GBP) which your bank processes. Depending on the exchange rate charged by your bank, you might be better off selling through services which allow you to cash out in GBP instead.
How should I store bitcoin?
To simplify quite a broad topic, you essentially have two options: hot or cold.
A hot wallet is any wallet that is connected to the internet. Typically this will be in the form of a desktop program or a mobile app. Hot wallets rank high in convenience, but are not suitable for large holdings. They are extremely vulnerable to malware and backdoors, with hackers having strong financial incentives to target desktop wallets. Nevertheless, they are perfectly reasonable for storing small amounts of cryptocurrency. Some popular options:
Electrum: Open source, available on desktop and mobile, but more complicated.
Breadwallet: Simple and beginner friendly mobile wallet.
Exodus: Supports multiple cryptocurrencies, great user interface, and is suitable for beginners.
A cold wallet is a wallet that does not connect to the internet, and therefore cannot be affected by malware. There are multiple forms of cold storage, but beginners should first consider a hardware wallet. A hardware wallet is a small, USB device where you can keep your cryptocurrency. They are secure since all of the information is stored on the device, so you could plug it in to a computer riddled with malware, and the malware would have no way of interacting with your wallet. These generally aren’t considered as secure as cold-storage wallets, but are much better than a hot-wallet. Usage just requires plugging the hardware wallet into your computer. One drawback of a hardware wallet is the cost (£70-100). Although not a mandatory purchase, it is strongly recommended that you purchase a hardware wallet if you've accumulated (or plan to accumulate) coins which are worth more than between £500 - £1000. Popular, well-recommended options include the:
Both are reputable and will serve you well. At the time of writing this, the Ledger is slightly cheaper and offers support for more cryptocurrencies. Unless you need the greater cryptocurrency support, the choice between them doesn’t really matter. For an overview of the Ledger Nano S (with security recommendations and a small FAQ) see this post. For a tutorial on setting it up, check out this video.
For a more information on different wallets, check out:
When setting up a wallet, it’s advisable to not record your mnemonic seed (which allows you to restore the wallet) on a digital device. Instead, it’s recommended to record it (clearly) on paper or card.
Why can't I just leave my bitcoin in the exchange?
When you buy bitcoin on an exchange (such as GDAX), the bitcoin is in your account but still belongs to the company who runs the exchange. Until you withdraw to your own wallet (as described above), the bitcoin is not truly yours. The bitcoin does not belong to you unless you own the private key. This is very important. Do not leave large amounts of cryptocurrency in an exchange. Even if you trust that the company won’t run off with your bitcoin, an exchange is much more prone to getting hacked. Think about it from the perspective of a hacker: would you rather target a million individual users who only own a small amount of bitcoin each? Or would you target one exchange that you know is holding unfathomably large amounts of bitcoin? Don’t believe me? If you're purchasing through Coinbase, you can withdraw cryptocurrencies through GDAX (same company) to your own wallet for free. Check out this how-to post for details.
Revolut is a mobile banking app that has recently announced support for cryptocurrencies. Note this section only refers to their service that allows you to buy cryptocurrencies within their application - not the process detailed above. While more mainstream adoption is good, Revolut’s in-app cryptocurrency exchange - in its current state - does not allow you to withdraw your cryptocurrency from their application. This has all the same issues as leaving in exchange, as you don’t have the cryptocurrency in your own wallet. Revolut’s in-app cryptocurrency exchange should be rolled out to all customers, if their FAQ is still accurate, by the 21st or 22nd December. Early access is available if you have premium or invite 3 friends who subsequently sign up and use their app. See here for more details.
How do UK taxes work with bitcoin?
Please note: This is not professional tax advice. Conduct your own research to verify this information and/or contact a professional tax advisor. If you sell bitcoins at a higher price than you bought them for, or exchange them for something else (e.g., another cryptocurrency, and goods or services), you would be liable to pay capital gains tax. However, you have a capital gains allowance of £11,300 per year. If you generate profits from the sale or exchange of bitcoins which fall below this threshold, then no tax would be due. Additionally, no tax is due until you sell or exchange it for something else. You may also be able to reduce your capital gains liability by gifting cryptocurrencies to your partner so that they can take advantage of their capital gains allowance too (more details in this thread). It appears unclear how you would be taxed in the UK in other circumstances: such as mining, working for cryptocurrency, or proof of stake rewards. As these rules develop, it’s advised to document everything you do with cryptocurrencies. When the taxman comes knocking, you’ll be grateful that you did. IndeedHowlandReed has kindly putting together a more detailed guide about Bitcoin and UK tax. You can find part 1 here and part 2 here. If you have any questions not answered by their guide, post them in this thread (or upvote existing questions). Useful Links:
Have a question that’s not here? Search /BitcoinUK first.
If you don’t find the answer to your question here, please search this subreddit before submitting a new post.
Have a contribution or suggestion?
As noted at the start, this is a WIP (i.e., it's definitely not perfect) which, as a community, we could expand and improve upon over time. If you have something to contribute (or even just a suggestion), do comment in this thread or contact the mods.
[GIVEAWAY] Para quem nunca ouviu falar de criptomoedas, ou quer experimentar uma versão mais soft das bitcoins - DOGECOINS!
EDIT: Wow tantos comentários Olá a todos! Este tópico será para enviar dogecoins a todos aqueles que desejarem e também para testar o "bot das gorjetas" no portugal. Acho que fazermos uma pausa da conversa das praxes faz-nos bem a todos. Mas antes, comecemos do início: O QUE SÃO CRIPTOMOEDAS?! As criptomoedas são um meio digital de troca, tendo começado com as Bitcoins em 2009. As informações a reter são:
Existe um número limitado de moedas, simulando a escassez do ouro (por exemplo, o limite de bitcoins são 21 milhões)
As moedas são geradas por um processo chamado mining, onde os computadores da rede (ou seja, de qualquer pessoa) podem receber bitcoins se conseguirem resolver um problema matemático complexo de criptografia.
O valor das criptomoedas em geral (quer seja bitcoins ou outras moedas) é actualmente muito volátil, mas parece que de forma geral o valor vai aumentando à medida que aumenta o número de empresas e serviços que aceitam estas criptomoedas.
Um exemplo desta volatilidade: No início de 2013 um bitcoin valia ~9.5€, e em dezembro um mesmo bitcoin já valia cerca de ~905€. Esta variação de valor pode parecer atractiva, mas também fez da comunidade uma comunidade mais séria, focada apenas no lucro e egoísmo. É aqui que entram as Dogecoins OK, BITCOINS SÃO FIXES, MAS O QUE SÃO DOGECOINS E O QUE TÊM DE ESPECIAL? As Dogecoins são uma variação das Litecoins, que por sua vez são uma variação de Bitcoins. Como o código Bitcoin é open-source na teoria (e práctica) qualquer pessoa pode fazer a sua própria moeda. As Litecoins foram feitas como uma espécie de prata ao "ouro do bitcoin", e têm sido a base da maior parte de criptomoedas alternativas criadas. As Dogecoins, criadas no início de Dezembro de 2013, começaram por ser uma forma de paródia de todas as outras criptomoedas alternativas que têm surgido (sexcoin, bbqcoin, etc), usando o meme Doge como inspiração. Contudo, a paródia começou a tornar-se bem real, porque ao contrário de Bitcoins e Litecoins, que fomentam a acumulação das mesmas criptomoedas com o pensamento de que irão valer mais no futuro, as Dogecoins existem em muito maior quantidade, e têm sido usadas muito mais como moeda de troca do que como investimento (que é, afinal de contas, o objectivo inicial destas criptomoedas!) As dogecoins também tornaram-se a criptomoeda de eleição para enviar gorjetas, através do reddit, twitter, imgur e até SMS. Por último, a comunidade Dogecoin no reddit tem demonstrado ser a mais generosa, tendo doado dinheiro para a equipa da Jamaica poder ir às Olimpíadas, assim como o atleta da Índia e outras variadas doações. E é por isso que estou aqui! Para partilhar com vocês algumas dogecoins de forma generosa! RECEBI DOGECOINS ATRAVÉS DO BOT, O QUE FAÇO AGORA?! Sigam as instrucções aqui. Basicamente: - Quando receberem a gorjeta (através de uma mensagem privada de confirmação), enviem uma mensagem com +accept para o bot - O bot têm andando bastante sobrecarregado por isso pode demorar algum tempo entre eu comentar e vocês receberem uma mensagem de confirmação! (Pode demorar mais de 16h :O ) - Se ainda não receberam nenhuma gorjeta mas já se querem registar com o bot, enviem uma mensagem com +register para o bot - Depois, saquem o cliente oficial dogecoin, esperem que sincronize com a rede, e cliquem em "Much Receive". Podem usar o endereço existente (uma série de números e letras) ou criar um novo. Esse será o vosso endereço público para receber dogecoins. Para enviar as dogecoins que receberam no reddit para esse endereço, enviem uma mensagem com withdraw, colocando o vosso endereço onde diz "ADDRESS". E é tudo! O que podem fazer com dogecoins? Podem comprar produtos e serviços de forma rápida e segura! Alguns websites que listam empresas e serviços que aceitam dogecoins:
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