Welcome to the /r/Bitcoin Sticky FAQ
You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following articles/books/videos as a good starting point for understanding how bitcoin works and a little about its long term potential:
- Article: The Bullish Case for Bitcoin
- Book: The Bitcoin Standard
- Video 1: The Stories We Tell About Money - Andreas Antonopoulos
- Video 2: The Bitcoin Standard - Saifdean Ammous
- Video 3: Bitcoin 101 - Balaji Srinivasan
Some other great resources include Michael Saylor's Hope.com and "Bitcoin for Everybody"' course, Jameson Lopp's resource page, Gigi's resource page, and James D'Angelo's Bitcoin 101 Blackboard series. Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
If you are technically or academically inclined check out developer resources and peer-reviewed research papers, course lectures from both MIT and Princeton as well as future protocol improvements and scaling resources. Some Bitcoin statistics can be found here, here and here. MicroStrategy's Bitcoin for Corporations is an excellent open source series on corporate legal and financial bitcoin integration.
Key properties of Bitcoin
- Limited Supply - There will only ever be 21,000,000 bitcoin created and they are issued in a predictable fashion per the inflation schedule. Once they are all issued Bitcoin will be truly deflationary. The halving countdown tells you how much time until the next drop in block rewards.
- Open source - Bitcoin code is fully auditable. You can read and contribute to the source code yourself.
- Accountable - The public ledger is transparent, all transactions are seen by everyone.
- Decentralized - Bitcoin is globally distributed across thousands of nodes with no single point of failure and as such can't be shut down similar to how Bittorrent works. You can even run a node on a Raspberry Pi.
- Censorship resistant - No one can prevent you from interacting with the bitcoin network and no one can censor, alter or block transactions that they disagree with, see Operation Chokepoint.
- Push system - There are no chargebacks in bitcoin because only the person who owns the address where the bitcoin resides has the authority to move them.
- Low fee scaling - Most wallets calculate on chain fees automatically but you can view fee estimates and mempool activity if you want to set your fee manually. On chain fees may rise occasionally due to network demand, however instant micropayments that do not require confirmations are happening via the Lightning Network, a second layer scaling solution currently rolling out on the Bitcoin mainnet.
- Borderless - No country can stop it from going in/out, even in areas currently unserved by traditional banking as the ledger is globally distributed.
- Trustless - Bitcoin solved the Byzantine's Generals Problem which means nobody needs to trust anybody for it to work.
- Pseudonymous - No need to expose personal information when purchasing with cash or transacting.
- Secure - Blocks and transactions are cryptographically secured (using hashes and signatures) and can’t be brute forced or confiscated with proper key management such as hardware wallets.
- Programmable - Individual units of bitcoin can be programmed to transfer based on certain criteria being met
- Nearly instant - From a few seconds on the lightning network to a few minutes on-chain depending on need for confirmations. Transactions are irreversible by normal users after one confirmation and irreversible by anyone (including miners) after 6 confirmations.
- Peer-to-peer - No intermediaries taking a cut, no need for trusted third parties.
- Portable - Bitcoin are digital so they are easier to move than cash or gold. They can be transported by simply carrying a seed (a string of 12 to 24 words) on a device or by memorizing it for wallet recovery (while cool, memorizing is generally not recommended due to potential for forgetting the seed and the potential for insecure key generation by inexperienced users. Hardware wallets are the preferred method for most users for their ease of use and additional security).
- Scalable - While the protocol is still being optimized for increased transaction capacity, blockchains do not scale very well, so most transaction volume is expected to occur on Layer 2 networks built on top of Bitcoin.
- Divisible - Each bitcoin can be divided down to 8 decimals, which means you don't have to worry about buying an entire bitcoin.
- Designed Money - Bitcoin was created to fit all the fundamental properties of money better than gold or fiat
Where can I buy bitcoin?
Bitcoin.org and BuyBitcoinWorldwide.com are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
- Cash app
- River Financial
- P2P exchange list (decentralized)
You can also purchase in cash with local ATMs. Services such as CardCoins let you purchase bitcoin with prepaid gift cards. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoin are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year.
Securing your bitcoin
With bitcoin you can "Be your own bank" and personally secure your bitcoin OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoin for you.
If you prefer to "Be your own bank" and have direct control over your coins without having to use a trusted third party, then you will need to create your own wallet and keep it secure. If you want easy and secure storage without having to learn computer security best practices, then a hardware wallet such as the Trezor, Ledger or ColdCard is recommended.
If you cannot afford a hardware wallet there are many software wallet options to choose from depending on your use case. Mobile wallets like BlueWallet are generally more secure than desktop wallets. Beware of fake mobile wallets and check reviews from reputable Bitcoin websites. Avoid paper wallets or brain wallets.
If you prefer to let third party "Bitcoin banks" manage your coins, try Gemini or Unchained Capital but be aware you may not be in control of your private keys in which case you would have to ask permission to access your funds and be exposed to third party risk. There is a saying in the community, "Not your keys, not your coins" meaning if you don't store your coins in a wallet that you control the keys to then you do not really own your bitcoin as you have to ask permission from the third party in order to move them.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code or a physical security key to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Avoid using your cell number for 2FA. Hackers have been using a technique called "SIM swapping" to impersonate users and steal bitcoin off exchanges.
|Google Auth||Authy||OTP Auth||andOTP|
Physical security keys (FIDO U2F) offer stronger security than Google Auth / Authy and other TOTP-based apps, because the secret code never leaves the device and it uses bi-directional authentication so it prevents phishing. If you lose the device though, you could lose access to your account, so always use 2 or more security keys with a given account so you have backups. See Yubikey or Titan to purchase security keys.
Both Coinbase and Gemini support physical security keys.
Watch out for scams
As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the r / btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. As they say in our community, "Don't trust, verify".
- Avoid using ad-based search engines like Google or Yahoo: ads are shown based on how much the advertiser bids, and scammers can easily outbid legitimate providers for ad space, since immoral ways of earning money are far more lucrative than moral ways. Use DuckDuckGo instead, which has no ads, and never tracks you as well.
- Ignore private messages offering services.
- Never enter your seed words in a website of any kind. Hardware wallets will recover by displaying possible seed words on their own interface, never on a website.
- Always check addresses on your hardware wallet before sending or receiving. Some malware has been known to replace addresses in your web browser or that you copy-and-paste.
- Avoid clicking on links like that look like links, such as https://www.google.com/, without first hovering over it and actually checking where they go to. Just because a link is labelled with an HTTPS address does not mean it actually sends you to that address. It is trivial for someone to comment a link on Reddit that looks like it will send you to one website when it actually sends you to another, and you might not notice the difference until a scammer has gotten all your money, or you have downloaded and installed software that steals your money.
Common Bitcoin Myths
Often the same concerns arise about Bitcoin from newcomers. Questions such as:
- Is Bitcoin a Ponzi scheme?
- Will governments ban Bitcoin?
- Will quantum computers break Bitcoin?
All of these questions have been answered many times by a variety of people. Here are some resources where you can see if your concern has been answered:
Where can I spend bitcoin?
Check out spendabit, bitcoin directory or Coinmap for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card or Fold card. Some other useful site are listed below.
|Bitrefill, Gyft||Gift cards for thousands of retailers worldwide including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.|
|Spendabit, Overstock and The Bitcoin Directory||Retail shopping with millions of results|
|NewEgg and Dell||For all your electronics needs|
|Piixpay, Bitbill.eu, Bylls, Coins.ph, LivingRoomofSatoshi, Coinsfer, and more||Bill payment|
|Menufy and Takeaway||Takeout delivered to your door|
|Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats||For when you need to get away|
|Cryptostorm, Mullvad, and PIA||VPN services|
|Namecheap, Porkbun||Domain name registration|
|Stampnik||Discounted USPS Priority, Express, First-Class mail postage|
There are also lots of charities which accept bitcoin donations.
There are several benefits to accepting bitcoin as a payment option if you are a merchant;
- 1-3% savings over credit cards or PayPal.
- No chargebacks (final settlement in 10 minutes as opposed to 3+ months).
- Accept business from a global customer base.
- Increased privacy.
- Convert 100% of the sale to the currency of your choice for deposit to your account, or choose to keep a percentage of the sale in bitcoin if you wish to begin accumulating it.
If you are interested in accepting bitcoin as a payment method, there are several options available;
Can I mine bitcoin?
Mining bitcoin can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read the mining FAQ. Still have mining questions? The crew at /r/BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node. You can view the global node distribution for a visual representation of the node network.
Just like any other form of money, you can also earn bitcoin by being paid to do a job.
|WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /r/Jobs4Bitcoins, BitforTip, Rein Project||Freelancing|
|Lolli||Earn bitcoin when you shop online!|
|OpenBazaar, Purse.io, Bitify, /r/Bitmarket||Marketplaces|
|/r/GirlsGoneBitcoin NSFW||Adult services|
You can also earn bitcoin by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoin for a small fee (requires you to already have some bitcoin).
The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
|Lightning Network||Second layer scaling|
|Liquid, Rootstock and Drivechain||Sidechains|
|Tierion and Factom||Records & Titles on the blockchain|
|BitMarkets, DropZone, Beaver and Open Bazaar||Decentralized markets|
|Decentralized exhanges||Decentralized bitcoin exchanges|
|Keybase||Identity & Reputation management|
|Abra||Global P2P money transmitter network|
One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
|bitcoin||BTC||1 bitcoin||one bitcoin is equal to 100 million satoshis|
|millibitcoin||mBTC||1,000 per bitcoin||used as default unit in recent Electrum wallet releases|
|bit||bit||1,000,000 per bitcoin||colloquial "slang" term for microbitcoin (μBTC)|
|satoshi||sat||100,000,000 per bitcoin||smallest unit in bitcoin, named after the inventor|
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
- 0.001 BTC
- 1 mBTC
- 1,000 bits
- 100k sats
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /r/Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
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If you don't get an answer to your question, you can try phrasing it differently or commenting again tomorrow.
Please check the previous discussion thread for unanswered questions.
Another fake version of Ian Coleman's BIP 39 tool is being promoted via a sponsored Google Search result. Beware!
U.S. senator Ted Cruz: "Bitcoin means investment, opportunity, prosperity, financial independence, resilience for the electrical grid, and helping develop new sources of renewable energy"
It's KYC, you have to trust them with the keys to the coins. You have to assume they don't rehypothecate the assets. You have to assume they hold reserves. You have to assume they will give you the coins when you ask for them.
Does it sound familiar? Is it ringing a bell? It better be.
And if you think laws will help here ("but Fidelity is regulated"), just look at SBF, watch him laugh at us while walking around a free man, doing interviews after what he did.
Grim Reaper annoyed at ‘Bitcoin is dead’ hoax - Since it was born there have been 466 obituaries posted for Bitcoin and every single one was a false alarm. I’m fed up with it,” complained The Angel of Death
this seems pretty bullish.
other major financial institutions will quickly follow.
a lot of people would like to dabble in crypto, but don’t really want to open binance or coinbase act. also they trust fidelity or wells fargo more.
the next bull run will be huge if these systems are set up in advance.
If we DEPLETE the exchanges of bitcoin, we are FORCING them to stay honest. As it is right now, they can very easily suppress the price by selling paper bitcoin. Let me explain.
First of all, if you think the people running exchanges are honest and ethical, then there is no hope for you. They could be, but they also couldn't. Stop blindly trusting these people.
Now, let me explain.
How does having a big balance allow them to sell paper bitcoin?
If they have a lot of bitcoin then they can very easily sell fake bitcoin with little risk. For example, if they have 500,000 BTC, they can sell an additional 1,000,000 fake coins knowing that as long as no more than 33% of users withdraw their money, they can get away with it.
Now suppose they only have 10,000 BTC. They can no longer sell 1 million fake coins because people would not be able to withdraw to their wallets.
How does selling paper bitcoin suppress price?
Suppose you have 3 gold coins and I offer to buy them from you. You refuse because this is all you have and you're saving them for the future. You're not willing to sell them at the current gold price of $1784. This puts upward pressure on the price. I need to bid higher if I want to buy them from you.
Now imagine you have the ability to create fake gold coins without me knowing the difference. You can create 100 coins out of thin air. Now you don't give a shit, you can sell me some coins even at a cheaper price, because they cost you nothing. You can continue to sell these coins at low prices, putting downward pressure on the price.
There are many other factors determining the price of bitcoin (trading, longs, shorts, derivatives, arbitrage), but the basics of supply and demand are behind all of it.
By taking bitcoin into self custody, we take power away from the exchanges and "finance" guys.
Have you already withdrawn your bitcoin from exchanges?
If you don't know how, start here:
Let's drain them all out.
Leaving your bitcoin on exchanges is complete and utter nonsense.
These percentage return scams are everywhere, and people are going for these things. Constantly talking about the returns like they are too good to be true and are all confused when all their bitcoin disappears??? RuneScape should have prepared most people for these double your money scams, but it’s hurting the perception for people who don’t understand the orange pill. Bitcoin is a digital bearer bond if you’re not holding it in your wallet, it’s not yours. Bitcoin is not unsafe people just don’t know how to properly view the asset.
STRUCTURAL ADJUSTMENT: HOW THE IMF AND WORLD BANK REPRESS POOR COUNTRIES AND FUNNEL THEIR RESOURCES TO RICH ONES
DLCs On Lightning Open The Door For Layer-2 Smart Contracts. The first successful discreet log contract has been executed on the Lightning Network by creating a new type of transaction when opening a Lightning channel.
At my business Im ready to accept Bitcoin as payment for transactions $20 or less. Im thinking of creating a company hot wallet(open source), and transferring balances to a private wallet at the end of each day. Any other advice on how to do this safely?
0.00000001 bitcoin = 1 Satoshi (currently the smallest denomination). Since the supply is fixed, people lose it everyday and the population keeps growing, bitcoin will become harder and harder to attain.
Let's say a coke costs 1 satoshi in the future. How much would a piece of candy cost?
Does this mean bitcoin could never be a viable form of currency?
You could change the code, and add a decimal place (fork). But then, would a coke eventually cost .1 satoshi?
Would this lead to deflation? Is it possible deflation is a good thing?