Every thing bitcoin in baby language

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EVERYTHING
BITCOIN
IN BABY LANGUAGE
Bytheadministratorfigurehowto.com

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What Is Bitcoin
Most Bit-coiners suck a lot when it comes to explaining bitcoin; they start with “Bitcoin is a cryptographic”, “Bitcoin is a
decentralized” WTF!! Is that what the layman wants to hear?
Bitcoin is a new kind of currency that isn't regulated by any government.
Bitcoin is gold that resides on the internet. The value of 1bitcoin will depend on how much people need bitcoins. So just as the
scarcity of gold and the difficulty involved in mining gold makes it very valuable, the scarcity of bitcoin and the difficulty to mine
bitcoin it also makes it very valuable.
I describe bitcoin as “a digital version of gold.” eGold.
BITCOIN AS A CURRENCY
Currency is a medium of exchange for goods and services, and nothing more .When something is scarce and people want it, it can
automatically be used as money. In the past, before Paper Money was born gold was cut into flat chips and used as money (Again
scarcity of gold).
Bitcoin is an electronic currency (eCurrency) as people have begun to accept it as a form of exchange for goods and services.
Unlike any other normal modern day currency; USD, EUR, GBP etc. where there is a central authority that controls the printing of
these currencies and inflation rate bitcoin is de-centralized (there is no central authority/bank/server) Again, just like gold. There is a
fixed amount of gold in this world (Planet earth) we just keep mining maybe we can find all. Also there is a fixed amount of bitcoins
that can exist. We just keep mining maybe we can reach the limit.
What has really made bitcoin attractive is the fact that there is no server, there is no central bank you have full control over your
funds. The question many people ask now is how the bitcoins are generated or created. How are they are minted since there is no
central bank.

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HOW DOES BITCOIN MINING WORK AS THERE IS NO SOIL TO DIG ON THE INTERNET.
Bitcoin Miners are like the Central Bank of bitcoins. BITCOINS are mined with software called Bitcoin Miners, it sounds
funny right? One of the most common points of confusion for new Bitcoiners is the concept of mining. Well there are a lot
of technical terms you need to understand before you can understand bitcoin mining but i will try to make this explanation
as simple as possible.
BITCOIN MINING is the process by which some users put their computers to work verifying transactions in the bitcoin
network. These users are rewarded with new bitcoins when they successfully complete the work of verification. These
miners are like the Central Bank of bitcoins because they are the one who release more bitcoins into the economy by
distributing the coins they mined by spending it.
The miner’s computer solves very very complex calculations that have the ability to overheat your computer
processor. The result of this calculation is called HASH. A hash cannot be reversed. These calculations to confirm
transactions that happen on the network is called mining because it slowly makes new currency available at a rate that
resembles the rate at which commodities like gold are mined from the ground.
Some Computer Processing Units or external processing unit can perform these computer calculations (HASHING) faster
than others and this speed is rated in HASHRATES e.g. 1H/s means the processor performs one hash in one second
1KH/s means the processor performs 1000 hashes in one second, 1 MH/s means that the processor performs 1,000,000
hashes in one second.
Once again is the hashing term is beginning to cloud your brain and make you feel dizzy?. A hash is the solution
to a complex mathematical puzzle solved by a processor to verify transactions that happened on the bitcoin
network. Some processors are faster than other processors when it comes to solving the math and this is
measured in hash-rates. A higher hash-rate means the processor computes more hashes in less time. These types
of processors are better for mining as you will be rewarded with more bitcoins.

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How Bitcoin Mining works to Mint new coins
People are sending coins to each other over the bitcoin network every second, but someone keeps a record of all these
transactions right? Yes, this happens so that we know who had paid what? The bitcoin network handles this by bundling all of the
transactions made during a short period (10 minutes) into a chunk of data, called a BLOCK
These blocks (or grouped transactions) are linked such that each new block proves that older blocks were valid. Linked blocks are
called BLOCK-CHAIN
The Bitcoin network was designed in a way that only 6 blocks will be solved in 60 minutes(1hr) Which means that in every 10
minute interval a new block is created for processors to HASH(verify transactions contained in the block)
The first transaction in a block is a special transaction that produces new bitcoins (25) owned by the creator of the block.
The creator of the block is the miner or the computer that bundled the transactions together, verified them and put them in the block
chain (where older blocks were kept.)
THIS SPACE WAS INTENTIONALLY LEFT BLANK

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Block Chain
The block chain is simply a database where records of all the transactions that ever happened on the bitcoin network are kept.
Since there is no central server on the bitcoin system, where exactly is this block chain stored. Every user on the bitcoin network is
a server and a client. The bitcoin network is a peer-to-peer network.
PEER-TO-PEER NETWORK
When bitcoins are sent from one address to another the transaction is broadcasted (sent out) to all other nodes directly connected to
the node that performed the transaction those other nodes still broadcast what they receive and in no time everybody on the network
hears about the transaction.
Because of the blockchain that everybody on the network has a copy of, now everybody knows about every transaction that has
ever happened on the network so everybody will know what every other persons account balance should be by simple plus and
minus. Example bitcoin account 1FdPFc6bWdPiz2UP18jorvbuP6sZZ31LU2 has received only 3 bitcoins in his entire history and has
sent out 1 bitcoin in his entire history so his balance must be 2 bitcoins. Everyone on the bitcoin network knows this. So your
bitcoins are not stored on your PC as per say but on the network.
So the basic concept on mining is once a transaction (true or false) happens on bitcoin network, the terminal that performed that
transaction broadcasts that transaction is to all other nodes (computers) on the bitcoin network connected to him. Each Miner node
or computer involved in bitcoin mining bundles these transactions into a block. Each block will contain some meaningless data and
false transactions like double-spend attempts. The mining computers now put this block through a hash (complex math) and an
output will be gotten normally it’s just a sequence of numbers and alphabets.
Example of a hash b666f26b0f364886b8fe9127920fd9202315e9fe but what makes the bitcoin network unique and difficult is that
the bitcoin network will not just accept any hash value the network demands that a block’s hash has to look a certain way; it must
have a certain number of zeroes at the start so the processors involved in mining bitcoins have to work that out. When a miner

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finds out correct hash value, it immediately broadcasts the new block. Also every computer on the network has its own copy of the
block chain (record of transactions) so he simply adds the newly found block to the block chain.
The first transaction in a block is a special transaction that produces new bitcoins (25) owned by miner that discovered the block by
solving it. The owner of these new coins distributes his new coins into the bitcoin economy by spending.
If a Mining pool was used the members of the pool share the new bitcoins in ratio of the hash power he/she donated to the pool. If
you are a solo-miner you keep all 25 bitcoins to yourself.
In other words a block is a list of transactions written on an A4 sheet; the BlockChain is these A4 Sheets arranged in a file folder
according to the order in which they were received.
Mining Pool
With a lot of powerful processors on the bitcoin network having the ability to perform millions of hashes in one second, it will mean
that blocks will get resolved before 10 min and this will go against the Bitcoin network design that specifies that a block is released
every 10 min. If more than one block is released in 10 minute period it means more than 25 bitcoins are minted in 10 minutes. If
this continues there will be excess bitcoins in circulation and as a result the value of bitcoin will decline because it is no longer
scarce.
Any way the bitcoin network automatically addresses this issue by increasing the network difficulty as more powerful devices begin
to hash. This is achieved in such a way that the processors are made to perform more hashes to verify a single transaction.

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Say for example normally 4096 hashes verifies a 1 block of transactions as the devices on the network become more powerful, in
order to ensure that only 6 blocks are calculated in an hour the network then adjusts the difficultyto ensure that 12288 hashes verify 1
block of transactions.
Common software’s that can help you begin mining are BFG miner, CG Miner. and a host of others.
If you wish to begin mining it is usually advised that you start with a mining Pool
What is a Mining Pool.
As the network difficulty continues to increase it becomes impossible for you to use your CPU to mine because it may take your
months of none stop hashing to find a block. People came together, formed a team and used the collective computing power of their
CPU for mining.
We can simply say a mining pool is a group of people who decide to bring their processors together (they form a team) so they use
the combined HASHING POWER (calculating power) of their CPU, GPU, ASIC to mine new BITCOINS.
The new bitcoins are shared according to the HashPower you contributed to the pool (Pool members with greater hash-rates get
more Bitcoin when bitcoins are minted)
To rephrase, the newly generated 25 bitcoins are shared among pool members based on their contribution to solving a block. The
larger your contribution, the more returns you’ll receive.
When all the bitcoins are mined, miner rewards will come from transaction fees.

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Common Bitcoin Terminologies
There are a lot of terms you hear when you get into bitcoin. I mean a whole lot of terms. We will start with the most common terms.
1) Hash: - is the output of a hash function. A hash function is simply defined as complex math performed by processors but that
definition will be misleading so a hash function is a mathematical function that takes an input of any possible length of characters
and transforms it into an output of a fixed length of characters. A hash output is normally it’s just a sequence of numbers and
alphabets like this b666f26b0f364886b8fe9127920fd9202315e9fe . The bitcoin network demands that the hash output of a block
must resemble 00000febfe912ca920 because it increases the network difficulty by increasing or reducing the number of zeros it
demands at the start there by increasing or decreasing the number of times a processor will have to solve the complex math.
2) Address: - A bitcoin address is similar to bank account number. It is the only information you need to provide if you wish to
receive bitcoins. It is like the reference number to the container where your bitcoins are stored which makes it your bank account
number inside the bitcoin economy.
It is not a wallet. Every bitcoin address is directly linked to a private key. You can calculate the bitcoin address if you have the
private key. You can transfer money from an address if you have the private key.
Example of a bitcoin address: 1FdPFc6bWdPiz2UP18jorvbuP6sZZ31LU2.
3) Wallet: - A bitcoin wallet can contain one or more bitcoin addresses. When you download the bitcoin client for your PC or
Android then your PC or Android device it becomes a wallet. A wallet holds your private key. Simply the wallet is a program which
stores the private keys.
Websites like blockchain.info provides a free and very secure wallet service (An Online Wallet.) which makes it easy to send and
receive Bitcoins without needing to download a Bitcoin client.
4) Private Keys: - Every Bitcoin address (account) has a unique private key attached to it. This key is what allows you to maintain
control of those bitcoins inside the Bitcoin address. A private key must always be kept secret. Anyone with your private keys can
spend your Bitcoins!!! . The private key is a secret code which allows the user to prove his ownership of his bitcoins. It is like your
ATM CARD PIN or Online Banking account Password.
E.g. of a private key: 5JZB4ewYsbJhej6Psb5gL1h5BL26EoA49EzwoLSSXB8rtEDX8su
5) Bitcoin (BTC): - Simply put is a new kind of currency that is not regulated by any government. A difference exists between the
terms 'Bitcoin' and 'bitcoin'. Bitcoin written with capital ‘B’ refers to the entire system; the bitcoin economy while Bitcoin written with
small ‘b’ is used to describe the unit of account, the currency itself. eg: 0.001, 0.01, 1.00. As at Feb 6th 2015 a person will give
you $223 for 1.0BTC.
6) Block & BlockChain: - All of the transactions that happen on the bitcoin network at the same time span are bundled into one
chunk of data, called a block. These blocks are linked such that each new block proves that older blocks were valid; they have
reference to the previous block. These linked blocks are called BLOCK-CHAIN.

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The blockchain is a database that has records of all the transactions that ever happened in the bitcoin economy. Every bitcoin client
PC has its own copy of the blockchain.
Genesis Block is the very first block that was created and the beginning of the blockchain.
7)Confirmation:- When bitcoins are sent from one address to another the transaction is broadcasted(sent out) to all other nodes
directly connected to the node that performed the transaction those other nodes still broadcast what they receive and in no time
everybody on the network hears about the transaction. Within each transaction that happens there is a mathematical relationship
between the ID of the coins involved, the ID of the address involved, and the ID of the transaction.
All transactions that occur are bundled into a chunk of data called block and MINERS process each block to verify transactions by
hashing to verify that a mathematical relationship exists between the coins, address and transaction that occurred.
A confirmed transaction, is simply a transaction has been put into a block and validated by the network (By Miners).
8) Miners and Mining: - Miners are people who put their computers or any other processing unit like ASIC and FGPA into work to
verify transactions that happen on the bitcoin network. Mining is the term used to describe what miners do because every 10
minutes a new block is created and difficult calculations are performed to verify transactions. The first transaction in a block is a
special transaction that manufactures 25 bitcoins. This new 25 bitcoins belongs to the people (computers) that created the block.
Anyone on the bitcoin network can opt-in and become a miner by just grouping a set of unordered transactions it received from
other nodes into a block, and broadcast the block to the network as a suggestion for the next block. It also tries to verify the
transactions by verifying that the mathematical relationship that exists between the ID of the coins involved the ID of the address
involved, is consistent with the ID of the previous transactions that the coin has been involved in.
Before a miner broadcast’s a block, he must hash it and make sure that the output of the hash starts with a certain number of
zeros.
9) FPGA: - Field Programmable Gate Array, An FPGA is an integrated circuit whose function can be changed as it can be
reprogrammed. FGPAs used in bitcoin mining are specifically modified to perform hash calculations and produce new bitcoins from
mining.
10) GPU: - Graphical Processing Unit, a GPU (or commonly just referred to as a graphics card) was previously the dominant way of
Bitcoin mining. It’s far more efficient than a CPU. With the increase in the difficulty CPUs became obsolete for mining but it has
recently become inefficient too. FGPAs and ASIC chips are used.
11) Hash (Rate):- is simply the speed at which a processor can perform hashing but as it relates to Bitcoin, the Hash Rate is the
speed at which a processing unit is completing an operation in the Bitcoin code. Example-1H/s means the processor performs
one hash in one second 1KH/s means the processor performs 1000 hashes in one second, 1 MH/s means that the
processor performs 1,000,000 hashes in one second.

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Five Common Bitcoin Questions.
1) How do I get started?
To get started in the bitcoin economy what you need is an account number (Wallet Address). To get a bitcoin wallet address you
need to download and install bitcoin client software on your PC or install Android wallet on your phone.
In order to operate a bitcoin wallet yourself you must have a significant knowledge of computers and internet however for ease and
convenience, coinbase.com offers a very secure online wallet where you can just register and get a bitcoin wallet.
Registering on coinbase.com as easy as opening a Facebook account. Just register on coinbase.com and you be given a bitcoin
address immediately. Think of coinbase.com as PayPal.com.
2) How do I acquire bitcoins?
You can accept Bitcoins for goods and services or seek them out via Bitcoin Exchanges; you can start mining bitcoins yourself.
Accepting bitcoins for goods and services
Do you have an existing business; well the world is now going bitcoins so your business needs to start accepting bitcoins and
fortunately it is not as difficult as accepting PayPal. You can also use coinbase.com to start accepting bitcoin payments on your
website. Bitpay.com as also a perfect alternative.
Buying Bitcoins on exchanges
Well if you live in the USA, coinbase is your best option although you can buy bitcoins from many other websites like CoinMama
they accept Western Union and Credit Card. People in the UK can buy bitcoins from bitbargain.co.uk. BitCoin is really popular and
you can buy them from anywhere really. Just make sure to trust who you are dealing with before you give your cash to get the
coins transferred to your bank account.
Mining bitcoins
If you have the hardware you can acquire bitcoins by mining. You cannot mine Bitcoins with your normal PC because the network
difficulty is very high, you need to use special processing units like ASIC, FPGA and High End GPU,s . There are lots of reliable
mining pools out there. You can also decide to be a solominer if you have powerful enough hardware.
Some reliable mining platforms include ghash.io, bitminter.com. Some other websites like hashop.io will lend you their powerful
hardware for a fee.

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Earning bitcoins
There are a lot of websites that pay you in bitcoins for carrying out small tasks but seriously, a lot of them are crap. The best I can
recommend for now is cointasker.com.
3) What are bitcoins worth
Bitcoins are like any other currency: they fluctuate in value relative to other currencies. The value of a bitcoin is constantly changes.
There is no 'fixed' price. Usually what determines the value of bitcoins is how many people need bitcoins to how many bitcoins are
available. The value of bitcoin fluctuates through supply and demand. The present worth of bitcoins can be found on Preev.com
4) How do I transfer bitcoins to my bank account?
Typically you can transfer bitcoins to your bank account with the help of an exchanger. There are exchangers in every country just
do a search on Google like this “bitcoin exchangers in “your-country-name” To avoid been defrauded its best to use exchange
companies not individuals.
It works like this - Transfer your bitcoins to the address (bitcoin account) of the exchanger and the exchanger will pay in the
equivalent value into your bank account. Example- As at 06 Feb 2015 the value in 1.00BTC equals $223 so if you transfer 1btc to
the exchanger he will transfer $223 to your bank account.
5) How difficult is it to use bitcoin
Using bitcoins is easier than using credit or debit cards and PayPal. To open an account just go to coinbase.com, blockchain.info
or download the Android or windows app. You can make payment by simply entering the recipient's address, the payment amount,
and pressing send.
You can prove that a payment was sent or received by checking http://blockchain.info/address/YOURADDRESS you will be able to
see the records of the coins that were sent to or from your address.
There are Over 9,000 Places to Spend Your Bitcoins go to http://www.spendbitcoins.com

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How to set-up BFGminer to begin mining bitcoins.
Typically 70% of people who mine bitcoins today do so with a mining pool and it is nearly impossible to mine bitcoins with your CPU
no matter how powerful it is so for this tutorial we will assume you have an external mining device.
Before you begin
Download Latest version of BFGminer from this link 64bit here http://uploaded.net/file/vhhhezr6
Download Latest version of BFGminer from this link 32bit here http://uploaded.net/file/8p4vc4wj
It is assumed that you should have the drivers of your external mining hardware

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READY TO BEGIN
1. Plug in your USB miners to your USB port
RED FURY
2. Find the folder where you save BFGMiner and unzip the file
3. Right-click bfgminer.exe and Create Shortcut
4. Right click the shortcut to bfgminer-shortcut and click on Properties

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6. Find the “target” box, and add the following information:
 -o YOUR POOL MINING ADDRESS
 -u YOUR USERNAME
 -p YOUR PASSWORD
 -G (if not using a graphics card on the same machine)
 -S all
 –icarus-options 115200:1:1 –icarus-timing 3.0=100

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The actual values you put in should look like this
-o http://stratum.btcguild.com:3333 -u username_workername -p 123 -G -S all –icarus
options 115200:1:1 --icarus-timing 3.0=100
You can then move the shortcut to your desktop for easier access. To access your BFGMiner, double click on the shortcut you
made and your miner should start.
You should read though the README.TXT file that came with the BFGMiner zip file to get to know how the miner works and it’s
functions if you’re not familiar with BFGMiner program.
PLEASE NOTE
The bitcoins are not actually stored in the address; they are still on the web. In fact, the address is just the bank account number
and the private key is the bank login.
The bitcoins are not stored on your computer’s hard disk or on your phone storage; the private key is stored on your computer hard
disk so if your PC crashes and you know your private key maybe because you have copied it out, you have no problem you can still
access your coins.
Your Bitcoins are stored on the internet inside the blockchain and every computer on the bitcoin network has a copy of the
blockchain or database of records.
PrivateKeys(bank logins) are tied to every address(Bank Account Number) and the private keys now help you prove that you are the
owner if the bitcoins tied to an address.
All bitcoins in the system are stored in the blockchain and a copy of the blockchain is stored on every PC on the bitcoin network.
If you install the Bitcoin PC application [Windows or Mac] your private keys are saved inside the wallet.dat file.

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Creating a secure bitcoin wallet
While some people will tell you that the best place to store your bitcoins is with yourself, they say instead of using online wallets like
blockhain.info and coinbase.com is best you download the bitcoin client for your PC and store your bitcoins yourself. They stated
that what if one day blockcchain.info website goes down with all your coins inside your online wallet stored in their system you lose
all your bitcoins.
Well, installing the PC bitcoin client and storing your bitcoins yourself is not also safer you could also loose all your bitcoins in one
day.
HOW?
When you install the bitcoin client, a wallet.dat file is created and that file contains some information about your wallet; the
information the wallet.dat file contains includes your private keys and remember that anyone with your private keys can steal all your
bitcoins. What if your PC is hacked and the hacker gets access to your wallet.dat file and extracts your private key from it, what if a
close friend or family whom you trust accesses your PC and steals your wallet.dat file. What if your hard disk crashes, what if your
PC is lost or stolen. Here some people recommend copying your wallet.dat file into a flash/thumb drive and keeping the flash/thumb
drive in a safe location in case your PC gets lost or stolen. You never know what if the flash/thumb drive gets damaged or missing.
There is a popular way most people recommend creating a secure bitcoin wallet that method involves installing a Linux operating
system on a usb drive or hard disk to eliminate the risk of viruses and now they boot into the Linux OS and install the bitcoin client
app for Linux. Any time they need to access their wallet they plug in the usb drive or hard drive into their PC, boot into linux and
use it. When they are through they disconnect the flash/thumb drive and take it back to their safe secure and undisclosed location.
Some even keep backups of their wallet.dat file in 3 – 4 different drives the length you go to secure your wallet depends on how
much bitcoins you have to protect. This method explained above is really safe but what if there is a fire? Okay i am being ridiculous.
I recommend brain wallets. Wallets that is stored in your head. As at the time I wrote this article 75% of the bitcoin world is against
using brain wallets to store large amounts of bitcoins because brain wallets is about thinking of a set of words and these words are
run through a certain algorithm to generate your private key and wallet address. They say that if someone can guess the exact
words that you used, he can generate your private key and seal all your bitcoins.
This is true and this highlights the a very big danger with brainwallets which in turn highlights’ the importance of not using
simple words to generate brain wallets
 Don’t use words like “fuck you”
 Don’t use Keyword generators as they always repeat phrases for example “correct horse battery staple”
 Think up your own words but make sure that it is a sentence.
 Don’t use sentences’ like “This is my secret brain wallet”
 You can write the names of your children together and spice It up with something at the end example -----
“AshleyTomPeytonBradley%%%China” people don’t easily guess this.

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How to create a Secure Bitcoin Wallet using brain wallets
1) Choose your keywords or passphrase(Use a sentence) in your mind, for example, I chose correct horse battery staple
a. Go to brainwallet.github.io, https://www.bitaddress.org
2) Put in your keywords and it will calculate your PrivateKey and bitcoin address for you.
3) Give out your bitcoin address or mine into it and copy your private key and keep it safe or better still copy your keywords
and keep it safe in different locations ;it will mean nothing to someone else unless you tell them that it is your brainwallet
keyword.
4) Anytime you need to retrieve the private key you can simply go back to http://brainwallet.github.io and put in those
keywords again.

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How to create a Secure Bitcoin Wallet using blockchain
1) Go to blockchain.info/wallet
2) Click “start a new wallet”; then register is as easy as opening a Facebook account.
3) After you register, login and click import/export
4) After clicking that, you will be taken to a kind of warning page where they tell you that you are about to enter some
advanced shit, click I understand.
5) On the next page, click paper wallet. You will be given your private key. Copy it out and keep it safe and delete the pdf
file that contains your Private key.

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How to retrieve coins from your Secure Bitcoin Wallet using blockchain
1) Login to your wallet
2) Click Import / Export

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3) On the Advanced Warning Page, Click OK
4) Put In the PRIVATE KEY of the address that you want to collect money from.

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5) Now Sweep key
How to see the private key of your block chain wallet
When you login to your wallet and click the import / export; click the option that says paper wallet and save the
pdf document that opens up. You can now copy out your private key, keep it in a safe place and delete the pdf
document.
How to import your wallet.dat file into blockchain.info
For those who are using the Windows or Linux bitcoin application
Where is my wallet.dat file?
 Windows Go to Start -> Run (or press WinKey+R) and run this: explorer %APPDATA%Bitcoin
 Mac OSX Open Finder -> Press [shift] + [cmd] + [g] and enter ~/Library/Application Support/Bitcoin/
 Linux The file will be located in ~/.bitcoin/

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1. Go to this address https://blockchain.info/wallet/import-wallet
2. Drag and drop your wallet.dat file into the dotted box on the web page.
3. If you encrypted your wallet.dat file you will have to put in your password.
Please tips would be highly appreciated as I am in dire need of coins.
BITCOIN : 1FdPFc6bWdPiz2UP18jorvbuP6sZZ31LU2
LITECOIN : LSWjWJPEYEGEL9QVvRtV2V8f3p5BGo6ZAe
DOGECOIN : D878Bv5pUsbLf1ZNQUiS64QV2sDozJ6F9d

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TECHNICAL OVERVIEW OF BITCOIN AND HOW IT WORKS
What "difficult mathematical problem" is being computed?
After writing this article I gave it to a friend of mine to read and he asked this question after reading. What "difficult mathematical
problem" is being computed and why is it been computed?
The answer below will not be in baby language as per say but I will try to explain it in an understandable way for a non-technical
person.
A FIRST COURSE ON CRYPTOGRAPHY-101
Encryption - is the conversion of data (readable plain text) into random, non-understandable data (unreadable ciphered text). Its
meaningless form ensures that it looks useless to everyone for whom it is not intended.
The only way to transform ++the data back into understandable form is to reverse the encryption (known as decryption). Public Key
Cryptography encryption and decryption is performed with Public and Private Keys
Public/Private Key Pair - The Public and Private key pair comprises of two uniquely mathematically related, cryptographic keys (it
is basically long random numbers)
Anything the public key signs (encrypts) can be decrypted only with the private key; anything a private key signs can only be verified
by its matching public key.
A string - in computer science a string is of a set of characters (any letter, number, space, punctuation mark, or symbol that can be
typed on a computer).
A hash function - is a mathematical function that takes a string of any possible length of characters as input and transforms it into
an output of a fixed length of characters.
Note that
1. The same input will always produce the same output.
2. Multiple separate inputs should not produce the same output.
3. It is not possible to go from the output to the input.
4. The slightest modification to a given input results in drastic change to the hash output value.
5. Computer sees data as 0 and 1 only which means that data can also be hashed.
Hashing acts as a kind of "signature" for the data provided, because a person knowing the "hash value" is unable to know the
original message, but only the person who knows the original message can prove the "hash value" is created from that message.

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Bitcoin address is actually a public-private key pair. The private key is known only to you or your bitcoin wallet app and it is used
to digitally sign transactions. The public key (your bitcoin address) is shared with the network and is used by its members to verify
the authenticity of a transaction . Bitcoin addresses are created by first picking a random number (for the all-important key) and
creating a public/private key pair with them using the Elliptic Curve Digital Signature Algorithm. This operation alone generates the
private key
Bitcoins - Remember that the coins are not stored inside your address they only have kind of tags indicating that they are owned
by a particular address and all that info is stored inside the blockchain. The blockchain has made it possible for everybody to know
about every transaction that has ever happened on the bitcoin network so everybody will know what every other persons account
balance should be by simple plus and minus. Example bitcoin account 1FdPFc6bWdPiz2UP18jorvbuP6sZZ31LU2 has received only
3 bitcoins in its entire history and has sent out 1 bitcoin in his entire history so his balance must be 2 bitcoins. Everyone on the
bitcoin network knows this.
Bitcoin Transaction - To send bitcoins to an address, a message is broadcast from the sending address to the network that ***
amount of coins from that address now belong to the new address. The senders private key signs this message before the public
key (bitcoin address) broadcasts this message that *** amount bitcoins now belongs to the new address. TECHNICALLY, a bitcoin
transaction is a broadcast message that comprise of two columns, an input column and an output column. The input column
contains information about the origins and current owner of the bitcoins, while the output column contains information about where
to send the bitcoins of a transaction.
If you don’t have enough bitcoins tied to your bitcoin address (account number) the entire network doesn’t honor your message
because the entire network knows how many bitcoins are tied to your address
Now it is clear that a transaction message must contain the origin of the bitcoins that wants to change ownership in the
input column. This origin message is an entire history of every one who has ever owned the coins involved in the transaction. The
ultimate origin of every coin is the address of the miner rewarded for mining it.
Transaction Order and Double Spend Attempts- As we explain earlier a transaction is a network broadcast message announcing
that some coins have changed ownership and this gets to the whole network by travelling from node to node on the peer to peer
network until it gets to everyone.
Every second, transactions are happening on the bitcoin network on different nodes and due to factors like poor internet on some
nodes, many nodes that reside far away from the node that sent a transaction message will not receive the transaction message in
the order that they happened.
This is where double spending fraud comes in. Imagine A has 1 bitcoin. He sends a transaction to B, paying him that 1 bitcoin.
Immediately, he sends a second transaction to C, He pays C with the same 1 Bitcoin. Due to different network capacities, that some
nodes would receive the "double-spend transaction” to C before they receive the one to B.
There is no way for the network to prove which transaction was issued first so the network would reach disagreement on whether its
B or C that rightfully owns the 1 bitcoin.

25 | P a g e
Blocks and Blockchain – Nodes that are participating in the mining operation bundle all the transactions that they receive around
the same time span into a block and they now broadcast this block to the network as a suggestion for it to be the next block to be
included into the block chain. There is usually a lot of suggestions from a lot of other of other miners so the entire network agrees
on a way to decide which block will be the next on the block chain.
The almighty MATHEMATICAL PROBLEM – When we said that, bitcoin mining is the process by which some users put their
computers to work and make them do mathematical calculations for the Bitcoin network to confirm transactions.
This is where that context comes to play. The network will ask the miners to find the answer to a special mathematical problem and
one of the blocks contains the answer to the mathematical problem. That block that contains the answer is chosen as the next block
to be put into the block chain. Solving this problem is like rolling a dice so processors involved in mining try random values (Hash
Values) until the answer is found
This is the reason processors with higher hash rates are more efficient in mining because they can guess more values in less time.
The bitcoin network was design to reach a consensus to accept the first solved block as the next block to be put into the blockchain
and award 25 bitcoins to the address of the miner that found the block.
Finally, the answer to the question - What "difficult mathematical problem" is being computed?
I previously explained that hashing involves taking a string of any possible length of characters as input and transforming it into an
output of a fixed length of characters. I also stated that; data can also be hashed because basically what your computer sees data
as is 0 and 1. I will like to add that; the method your computer uses to transform this data is known as Algorithm and there are
two very popular algorithms namely md5 and sha-256.
I will also like to introduce the word nonce – A nonce is a randomly generated letter or number added to the input data when it’s
about to be hashed to make the output result unpredictable. Bitcoin uses the sha-256 cryptographic hash function as its
hashing method.
Remember - The same input will always produce the same output but the slightest modification of a given input results in drastic
change to the hash output value
The Difficult Mathematical Problem that the network poses to miners simply put is this. I have added an unknown nonce to the
input so what is the output result of the hash?
Technically –>
Input = Hash Value of previous block + Current Block + nonce
Perform A SHA-256 Hash twice in my input and give me an output that starts with *** number of zeros in front.

26 | P a g e
The processors solve this problem by simply guessing. Hashing thousands of times per second with different nonce until they get
the output that the network requested.
They output hash of a block looks like this-00000000000000001419c4b20fbb7b7df8607356c0b31bd1bc0cbd8925c1a5ca
Hashing is complex math for humans but easy for processors but when they are made to perform sha-256 twice and continuously
you need specialized processors. You can hash blocks with pen and paper.
Network Difficulty - The required computational power to solve the problem increases greatly as the number of leading zeros is set
higher and decreases greatly also as the number of leading zeros is set lower. The network always tries to set the network difficulty
in such a way that the entire network takes exactly 10 minutes to solve the problem
Please tips would be highly appreciated as I am in dire need of coins.
BITCOIN : 1FdPFc6bWdPiz2UP18jorvbuP6sZZ31LU2
LITECOIN : LSWjWJPEYEGEL9QVvRtV2V8f3p5BGo6ZAe
DOGECOIN : D878Bv5pUsbLf1ZNQUiS64QV2sDozJ6F9d
THANK YOU
RODNEY OSSAI

Every thing bitcoin in baby language

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