What is halving bitcoin

[Genius Einstein]

Same as the question

[jdmorgan]

In the Bitcoin network, user transactions are grouped in blocks and recorded to a digital public ledger called a blockchain. Miners are in charge of this task, and receive a mining reward in the form of bitcoins for each block recorded.
The amount of bitcoins rewarded for each block decreases with time: it is halved every 4 years. This event, the moment when the mining reward is divided by 2, is commonly called "Bitcoin halving". Other denominations are used: "reward drop", "reward halving", or simply "the halving" or "the Halvening" which is a popular meme among bitcoiners.
When Bitcoin was created in 2009, the initial reward was 50 bitcoins. In november 2012, it dropped to 25btc after the first halving. The second halving will take place in July 2016, decreasing the reward to 12.5btc.

[coins101]

Same as the question

http://blockchain2020.com/block-420000/

[quintiilieo]

For me the bitcoin halving is the best happening in many bitcoin user. Its is the time of earning to others so they earn bitcoin, buy bitcoin as much as they can, And this the time that all traders waiting because in bitcoin halving theres a chance that the price will go down, this is good in traders to buy more bitcoin, And a chance that will rise the price of bitcoin, this is good also because they can sell their bitcoin at high price so for Me bitcoin halving is the time of earning.

[Cyaren]

Every 210000 there is a halving in the block reward in the bitcoin network. So right now the block reward is 25 BTC, it's going to be 12.5 when the block figure hits 420000 which is in a couple of months time.

And block 630000 will be the next halving after that, 840000 the next, etc. etc.

[yenxz]

Same as the question

bitcoin halving is time when bitcoin price will rise up so high that simple answer for us,but also not sure.
i found this article,and give us easy explanation,i can understand with it.

This event, the moment when the mining reward is divided by 2, is commonly called "Bitcoin halving". Other denominations are used: "reward drop", "reward halving", or simply "the halving" or "the Halvening" which is a popular meme among bitcoiners. When Bitcoin was created in 2009, the initial reward was 50 bitcoins.

www.thehalvening.com

[Rizky Aditya]

Bitcoin halving occurs every 210,000 blocks. What it does is halves the block reward. Right now the block reward is 25 Bitcoin, that will be halved to 12.5 Bitcoin when we reach 420,000 blocks.

[davinchi]

There's probably no point in me posting a reply in this thread as the users before me have already answered the question and the users after me will probably have the same answers, more or less. I'm surprised however that you're here in this forum for roughly 84 days and you have no idea what the halving is.

[nanonymousx]

Halving means supply of fresh bitcoin is going down.
Bitcoin fed is fighting inflation with tighter money supply, this will drive up the price of bitcoin, probably.

[justspare]

There's probably no point in me posting a reply in this thread as the users before me have already answered the question and the users after me will probably have the same answers, more or less. I'm surprised however that you're here in this forum for roughly 84 days and you have no idea what the halving is.

Well maybe he has just started Bitcoin in general and hasn't really researched much about it so he came to this forum and asked for help. Cut him some slack, you have been on this forum for much longer than him.

[Enotche]

A special feature is the limited issue of Bitcoin. Number of bitcoins, which can namaynit, has a limit. The emission is performed at a pre-fixed plan. The next important milestone in this respect will come in the summer 2016: halving the award for the block, or simply "Halving".

Therefore, the question on the forum a lot of those created, just use the search.

[vero]

please for correct me if i'm wrong halving is reduce your block reward from mining it will affect to miner farm if price not increase after halving.

[Denker]

please for correct me if i'm wrong halving is reduce your block reward from mining it will affect to miner farm if price not increase after halving.

Yes this is right.The reward will get cut in half for each block.From 25 btc to 12,5 btc.
It's also correct that miners who already run at the edge of cost efficiency without any reserve assets might have to quit mining if price shouldn't increase in the future.

[Lauda]

Bitcoin fed is fighting inflation with tighter money supply, this will drive up the price of bitcoin, probably.

"Bitcoin fed", "fighting"? No. This halving is part of the initial 'rules' set up by Satoshi.

It's also correct that miners who already run at the edge of cost efficiency without any reserve assets might have to quit mining if price shouldn't increase in the future.

Indeed. Small miners will get pushed out of the 'mining race' once again, nothing new about this though.

Bitcoin halving occurs every 210,000 blocks. What it does is halves the block reward. Right now the block reward is 25 Bitcoin, that will be halved to 12.5 Bitcoin when we reach 420,000 blocks.

For those that are not familiar with it, there's a very nice website that keep track of the ETA: Bitcoin Clock.

[Nowl1935]

The approaching halving of Bitcoin’s block reward is the subject of much optimism among Bitcoin enthusiasts and price speculators. Hardcore believers, uncaring about its exchange rate, look forward to the “halvening” as a milestone in Bitcoin’s history. Each block reward halving represents a triumph for Bitcoin, for they signify that Bitcoin has remained relevant enough for mining to continue. Speculators, on the other hand, look to the halving as a source of hope. Since the block reward will be cut in half, supply will not grow as rapidly. This fact leads many to believe that the Bitcoin price will skyrocket upon the halving, securing them handsome profits.

[BTCLovingDude]

please for correct me if i'm wrong halving is reduce your block reward from mining it will affect to miner farm if price not increase after halving.

i doubt that halving has any effect on mining farms at all. especially with the current price. those farms are earning a lot of money from mining bitcoin and also some merge mining.

[Kprawn]

How can you say that.... Let's say, you were used to a income of +/- $10 000 per day {just a amount sucked from thin air} and your expenses are $ 7000 per day. If the reward is halved by 50%,

you should in theory earn 50% less income.. now your income is +/- $ 5000 per day... BUT your expenses are still $ 7000 per day.... suddenly the mining is operating at a loss... So you will either

have to sack some people and work harder or you will have to find cheaper electricity to survive... We do not know what the outcome will be, until it happens. If the price do not increase, with the

halving... then the miners will suffer... or at least some of them operating on thin margins. 

[BTCLovingDude]

How can you say that.... Let's say, you were used to a income of +/- $10 000 per day {just a amount sucked from thin air} and your expenses are $ 7000 per day. If the reward is halved by 50%,

you should in theory earn 50% less income.. now your income is +/- $ 5000 per day... BUT your expenses are still $ 7000 per day.... suddenly the mining is operating at a loss... So you will either

have to sack some people and work harder or you will have to find cheaper electricity to survive... We do not know what the outcome will be, until it happens. If the price do not increase, with the

halving... then the miners will suffer... or at least some of them operating on thin margins. 

the real question is that are the miners earning $10,000 with the cost of $7000 really? or generally earning x and spending y while y > x/2?

without knowing this all these numbers are pointless ramble. and i can't find any evidence on how much they earn and how much they spend.

[The_prodigy]

How can you say that.... Let's say, you were used to a income of +/- $10 000 per day {just a amount sucked from thin air} and your expenses are $ 7000 per day. If the reward is halved by 50%,

you should in theory earn 50% less income.. now your income is +/- $ 5000 per day... BUT your expenses are still $ 7000 per day.... suddenly the mining is operating at a loss... So you will either

have to sack some people and work harder or you will have to find cheaper electricity to survive... We do not know what the outcome will be, until it happens. If the price do not increase, with the

halving... then the miners will suffer... or at least some of them operating on thin margins. 

the real question is that are the miners earning $10,000 with the cost of $7000 really? or generally earning x and spending y while y > x/2?

without knowing this all these numbers are pointless ramble. and i can't find any evidence on how much they earn and how much they spend.

I think its just an sample and i think you are still make a profit after block halving because if the expenses is 7k and your earnings before is 10k i think after block halving we will see the same result as the miner.. no changes because the value of bitcoin will be high but the difficulty is the same
Only changes is block rewards and the value of bitcoin.. if we are lucky that the price hits 1k value or more minings still profitable,,

[Cuidler]

It's also correct that miners who already run at the edge of cost efficiency without any reserve assets might have to quit mining if price shouldn't increase in the future.

Indeed. Small miners will get pushed out of the 'mining race' once again, nothing new about this though.

Not necessary small miners, just the miners with high electricity prices. And some of small miners can mine with free electricity (there are cases when you can run one or few mining rigs for free if you happen to have flat electricity rates or when you must use electricity for space heating anyway).

So while in many world places the mining is already not profitable, there cant be guarantee everyone who want to mine can be profitable because of big differences in electricity prices worldwide.