To request bitcoin from someone else you need to provide them with a "Bitcoin address". Anyone that you give this address to will be able to send you bitcoin from that moment on.
Remember that they may keep this address for a long time so you should never abandon a wallet by throwing away the wallet words. It's very unlikely you'll ever have to type a Bitcoin address by hand so don't worry about having to memorise them. Bitcoin addresses are intended to be used just once since for technical reasons see later they become a little less secure after you have spent the bitcoin received by them.
QR codes are a convenient way to transfer information from one machine to another. This makes it easy for you to request payment from smartphones with Bitcoin wallets installed. Once you have requested a payment it appears in the Payments screen with the status 'You requested'.
At this point you are waiting to get paid, the general process is as follows:. The other person sends you bitcoin and the status moves to "Unconfirmed" to indicate that the Bitcoin network is processing it. You will also get a green alert bar with a message indicating that bitcoin is incoming. You cannot spend unconfirmed transactions in MultiBit HD since they could fail to confirm for many reasons.
When your request has been paid and before it is confirmed the status of the transaction moves to "Receiving". If the other person only sends you part of the bitcoin you requested, the status is "Part paid" until they send you all that you requested. Bitcoin miners process all the unconfirmed transactions and put them into blocks.
Once this happens your transaction is confirmed and you can spend it. This normally takes between 10 minutes and an hour. Once your transaction is confirmed in a block its status changes to "Received". Use the Payments screen. You can undo this if you select the wrong one.
This requires a technical explanation of how Bitcoin addresses are created. This process makes the address short so it doesn't take up much space in the block chain, and also makes it very hard to work back from the address through two different hashing algorithms to arrive at the original public key.
During the Bitcoin spending process the public key is exposed in the block chain for all to see. This is necessary to allow everyone to verify that the address matches the public key and that the private key was used to sign the transaction, but removes the hash of a hash protection.
This weakens the security from that of an address to simply the mathematical relationship between a public and private key within elliptic curve cryptography. While this is immensely strong, it is still weaker than the additional hash of a hash which is why addresses should not be re-used. Back to Table of Contents Request payment To request bitcoin from someone else you need to provide them with a "Bitcoin address". Enter an amount denominated in whatever bitcoin unit you have chosen in the left entry field or the amount in your chosen national currency in the right entry field.
MultiBit HD will perform a currency conversion using your choice of exchange. Click the "Copy" icon next to the Recipient box to copy the address to your clipboard for easy pasting into an email, instant message etc You may want to add some private notes to the this payment request.
These are held encrypted within your wallet and are not revealed to anyone else including the payer. Tracking your payment request's progress Once you have requested a payment it appears in the Payments screen with the status 'You requested'.
At this point you are waiting to get paid, the general process is as follows: The other person sends you bitcoin and the status moves to "Unconfirmed" to indicate that the Bitcoin network is processing it. How can I find out more about a transaction? You can view many details of a particular transaction as follows: Select a transaction in the Payments screen and click the "Details" button or double click the transaction to open the "Transaction wizard".
In the transaction wizard, navigate to the screen titled "Transaction details". Click the "View in blockchain. MultiBit HD supports several block explorers. You can change which block explorer is used to view a transaction as described in Payment settings How can I remove a payment request made by mistake?
Why should Bitcoin addresses only be used once?
Bitcoin’s Key Features
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Installation on Windows
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Bitcoin is a distributed peer-to-peer digital currency that can be transferred instantly and securely between any two people in the world. It's like electronic cash that you can use to pay friends or merchants. Bitcoins are the unit of currency of the Bitcoin.
There are such things as physical bitcoinsbut ultimately, a bitcoin is just a number associated with a Bitcoin Address. A physical bitcoin is simply an object, such as a coin, with the number carefully embedded inside.
See also an easy intro to Bitcoin. Since Bitcoin is a new technology, what it is and how it works may be initially unclear. Bitcoin is sometimes presented as being one of three things:. While it is possible to find an individual who wishes to sell Bitcoin to you via Paypal, perhaps via bitcoin-otc most exchanges do not allow funding through PayPal.
This is due to repeated cases where someone pays for bitcoins with Paypal, receives their bitcoins, and then fraudulently complains to Paypal that they never received their purchase. PayPal often sides with the fraudulent buyer in this case, which means any seller needs to cover that risk with higher fees or refuse to accept PayPal altogether. Buying Bitcoins from individuals this way is still possible, but requires the seller to have some trust that the buyer will not file a claim with PayPal to reverse the payment.
You may find other exchanges and individuals willing to accept Paypal for Bitcoins at ExchangeRates. Proprice comparison of cryptocurrency exchanges and p2p market. Please visit the Community Portal for links to Bitcoin-related forums. New bitcoins are generated by the network through the process of " mining ".
In a process that is similar to a continuous raffle draw, mining nodes on the network are awarded bitcoins each time they find the solution to a certain mathematical problem and thereby create a new block. Creating a block is a proof of work with a difficulty that varies with the overall strength of the network. The reward for solving a block is automatically adjusted so that, ideally, every four years of operation of the Bitcoin network, half the amount of bitcoins created in the prior 4 years are created.
A maximum of 10, Every four years thereafter this amount halves, so it should be 5, over years2, over yearsand so on. Thus the total number of bitcoins in existence can never exceed 20, See Controlled Currency Supply. Blocks are mined every 10 minutes, on average and for the first four yearsblocks each block included 50 new bitcoins.
As the amount of processing power directed at mining changes, the difficulty of creating new bitcoins changes. This difficulty factor is calculated every blocks and is based upon the time taken to generate the previous blocks.
See Mining. Current count. Also see Total bitcoins in circulation chart. The number of blocks times the coin value of a block is the number of coins in existence. The coin value of a block is 50 BTC for each of the firstblocks, 25 BTC for the nextblocks, then A bitcoin can be divided down to 8 decimal places.
Therefore, 0. If necessary, the protocol and related software can be modified to handle even smaller amounts. Unlike most currencies, Exchanges united cryptocurrency states best amounts are highly divisible. This has led to a desire to create names for smaller denominations of bitcoin amounts, especially since transactions involving whole bitcoins are no longer quite so common.
Bitcoin is decentralized, so there is no organization that can set official names for units. Therefore, there are many different units with varying degrees of popularity.
There is nothing particularly special about this unit, but it is by far the most common unit due to tradition. The smallest value that the Bitcoin network supports sending is the satoshi sometimes abbreviated satone hundred-millionth 0.
In other words, the network does not support sending fractions of a satoshi. Since it is a hard limit, it seems natural to use it as a unit, though it currently has very little value. The unit was named in honor of Bitcoin's creator after he left -- he was not so vain as to name a unit after. The plural of satoshi is satoshi: "Send me satoshi".
Another common unit is the bitone millionth 0. Bits are seen by some as especially logical because they have two-decimal precision like most fiat currencies. You can send 1. For an overview of all proposed units of Bitcoin including less common and niche unitssee Units. The block reward calculation is done as a right bitwise shift of a bit signed integer, which means it is divided by two and rounded.
With an initial block reward of 50 BTC, it will take many 4-year periods for the block reward to reach zero. The last block that will generate coins will be block 6, which should be generated at or near the year The total number of coins in circulation will then remain static at 20, Even if the allowed precision is expanded from the current 8 decimals, the total BTC in circulation will always be slightly below 21 million assuming everything else stays the.
For example, with 16 decimals of precision, the end total would be 20, Even before the creation of coins ends, the use of transaction fees will likely make creating new blocks more valuable from the fees than the new coins being created. When coin generation ends, these fees will sustain the ability to use bitcoins and the Bitcoin network. There is no practical limit on the number of blocks that will be mined in the future. Because of the what is my bitcoin address multibit of supply and demand, when fewer bitcoins are available the ones that are left will be in higher demand, and therefore will have a higher value.
So, as Bitcoins are lost, the remaining bitcoins will eventually increase in value to compensate. As the value of a bitcoin increases, the number of bitcoins required to purchase an item de creases. This is a deflationary economic model. As the average transaction size reduces, transactions will probably be denominated in sub-units of a bitcoin such as millibitcoins "Millies" or microbitcoins "Mikes".
The Bitcoin protocol uses a base unit of one hundred-millionth of a Bitcoin "a Satoshi"but unused bits are available in the protocol fields that could be used to denote even smaller subdivisions. The blockchain base layer is not very scalable but layer-2 technologies can be used to greatly increase bitcoin's scale. Lightning Network is one example which uses smart contracts to build a network where payments are routed along a path instead of flooded to every peer.
These payments can just click for source nearly as secure and irreversible as blockchain transactions but have much better scalability as well support instant payments which what is my bitcoin address multibit much more private. Other possible layer-2 scalability technologies are sidechains or a bitcoin ecash chaumian bank. Bitcoins have value because they are useful and because they are scarce.
As they are accepted by more merchants, their value will stabilize. See the list of Bitcoin-accepting sites. When we say that a currency is backed up by gold, we mean that there's a promise in place that you can exchange the currency for gold. Bitcoins, like dollars and euros, are not backed up by anything except the variety of merchants that accept. It's a common misconception that Bitcoins gain their value from the cost of electricity required to generate. Cost doesn't equal value — hiring 1, men to shovel a big hole in the ground may be costly, but not valuable.
Also, even though scarcity is a critical requirement for a useful currency, it alone doesn't make anything valuable. For example, your fingerprints are scarce, but that doesn't mean they have any exchange value.
Alternatively it needs to be added that while the law of supply and demand applies it does not guarantee value of Bitcoins in the future. If confidence in Bitcoins is lost then it will not matter that the supply can no longer be increased, the demand will fall off with all holders trying to get rid of their coins.
An example of this can be seen in cases of state currencies, in cases when the state in question dissolves and so no new supply of the currency is available the central authority managing the supply is gonehowever the demand for the currency falls sharply because confidence in its purchasing power disappears.
Of-course Bitcoins do not have such central authority managing the supply of the coins, but it does not prevent confidence from eroding due to other situations that are not necessarily predictable. Yes, in the same way as the euro and dollar are. They only have value in exchange and have no inherent value.
If everyone suddenly stopped accepting your dollars, euros or bitcoins, the "bubble" would burst and their value would drop to zero. But that is unlikely to happen: even in Somalia, where the government collapsed 20 years ago, Somali shillings are still accepted as payment. Bitcoin does not make such a guarantee.
There is no central entity, just individuals building an economy. A ponzi scheme is a zero sum game. Early adopters can only profit at the expense of late adopters. Bitcoin has possible win-win outcomes. Early adopters profit from the rise in value.
Late adopters, and indeed, society as a whole, benefit from the usefulness of a stable, fast, inexpensive, and widely accepted p2p currency. The fact that early adopters benefit more doesn't alone make anything a Ponzi scheme. All good investments in successful companies have this quality. Early adopters in Bitcoin are taking a risk and invested resources in an unproven technology. By so doing, they help Bitcoin become what it is now and what it will be in the future hopefully, a ubiquitous decentralized digital currency.
It is only fair they will reap the benefits of their successful investment. In any case, any bitcoin generated will probably change hands dozens of time as a medium of exchange, so the profit made from the initial distribution will be insignificant compared to the total commerce enabled by Bitcoin. Worries about Bitcoin being destroyed by deflation are not entirely unfounded.
Unlike most currencies, which experience inflation as their founding institutions create more and more units, Bitcoin will likely experience gradual deflation with the passage of time.
First Things First
What can I do? Once your transaction is confirmed in a block its status changes to "Received". You should now password protect your wallet. Glidera operates in particular countries. At this point if you click send MultiBit Classic will show a confirmation screen giving you the chance to back. If you followed the instructions in the getting started guide then you created a cloud backup service that continuously uploaded your encrypted wallet files to a server somewhere in the cloud. Only two fields are required to make a payment: an address and an amount to send. Sign up or log in Sign up using Google. You must keep your adrress words safe, because anyone who knows your wallet words can steal your bitcoin.