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14 votes

How many bitcoins are there currently in circulation?

If you are running Bitcoin Core, you can see the total amount in circulation using the RPC call gettxoutsetinfo (in the Bitcoin-Qt debug console, or using bitcoin-cli if you run bitcoind). At the ...
Pieter Wuille's user avatar
9 votes

Who added the 21 million limit to Bitcoin?

This is the announcement of Bitcoin: http://www.metzdowd.com/pipermail/cryptography/2009-January/014994.html Total circulation will be 21,000,000 coins. It'll be distributed to network nodes ...
Nick ODell's user avatar
  • 29.4k
8 votes
Accepted

Why bitcoin cash supply is currently 100k more than bitcoin on coinmarketcap (as of Oct 17)

EDA (Emergency Difficulty Adjustment): Median Time Past of the current block and the Median Time Past of 6 blocks before has to be greater than 12 hours. If so, it gets 20% easier to create proof ...
MCCCS's user avatar
  • 10.2k
6 votes
Accepted

Can Bitcoin nodes vote to increase the money supply beyond 21 million?

The reward schedule is a consensus rule in the Bitcoin network. Consensus rules are enforced by each full node independently. Node operators choose which consensus rules they enforce per the Bitcoin ...
Murch's user avatar
  • 76k
5 votes
Accepted

What percentage of newly created bitcoins have never been moved?

As of block 445550 (december 28, 2016, 19:14 UTC), there are 55450 blocks with unspent coinbase outputs, with a combined value of 1854952.32263065 BTC.
Pieter Wuille's user avatar
5 votes
Accepted

How to calculate coin supply at each block height from all transactions?

The first transaction in every block is called the coinbase transaction, it is a special transaction that pays the miner their reward. This transaction adheres to different rules than the rest: it has ...
chytrik's user avatar
  • 18.3k
5 votes

How to calculate coin supply at each block height from all transactions?

If you want the total amount of BTC created, you simply need to iterate through the coinbase transactions (first tx in every block) and add up the output. You will then need to subtract the ...
Raghav Sood's user avatar
  • 17.1k
5 votes
Accepted

Does Bitcoin mining reward halving have documentation? Or is it just in the code?

This is not addressed in Bitcoin's Whitepaper, although Satoshi Nakamoto briefly mentions the decrease of the reward, but never explicitly talks about the amount of the reward. Satoshi speak about ...
leevancleef's user avatar
4 votes
Accepted

What prevents miners from mining more bitcoin after 21million btc?

The Bitcoin protocol allows block authors to create a limited amount of new bitcoins in the outputs of the coinbase-transaction (which also collects the transactions fees) in each block. The amount of ...
Murch's user avatar
  • 76k
4 votes

How can I verify the BTC supply with my own node?

To verify the supply, you have to compute the theoretical maximum issuance based on the block subsidy schedule. Then you can use the gettxoutsetinfo RPC which will output the total amount of Bitcoin ...
Ava Chow's user avatar
  • 70.9k
3 votes

Supply Restriction on Bitcoin & Bitcoin Cash?

Bitcoin Cash is a seperate fork, a seperate entity. There will be (a bit less than) 21 million BTC, and (a bit less than) 21 million BCH. Price differentiation is because of supply / demand for ...
Rutger Versteegden's user avatar
3 votes
Accepted

How can a X-coin market cap go down while its value goes up?

As Nate Eldredge pointed out, the chart you're looking at is denominated in BTC, while the market cap is denominated in USD. If you look at the chart below, you'll see that the price in USD (green) ...
Murch's user avatar
  • 76k
3 votes

Why the total number of bitcoin is limited?

The limitation in the number of bitcoins is by design and determined in the protocol code. It is a desirable feature because it makes the money supply predictable and independent of human decisions ...
Fernando Gutierrez's user avatar
3 votes
Accepted

Number of bitcoins mined algorithm

There is a fixed rate for how many bitcoins are mined each block. The block reward halves every 210,000 blocks, see Controlled Supply. Here is a short term bitcoin distribution projection from the ...
JBaczuk's user avatar
  • 7,418
3 votes
Accepted

Digital hard cap boundaries

There is absolutely no ability in Bitcoin for higher resolution than 1 Satoshi, as all values are internally represented in this unit. You can do this on second layer systems like Lightning which can ...
Claris's user avatar
  • 15.4k
2 votes

How many bitcoins are there currently in circulation?

The number of bitcoins currently in circulation can be found at BlockChain.info or BitcoinCharts.com Background The rate at which new bitcoins are mined follows a predefined schedule, with a new block ...
user2428118's user avatar
2 votes

Dash Supply Cap?

Might want to examine Section 5.2 of a Dash White Paper. Here is the relevant code concerning Dash's monetary policy. It is difficult to project the exact amount of Dash currency that will come ...
skaht's user avatar
  • 3,077
2 votes

What is MaxBTC and what it represents?

"We can represent any bitcoin account with MaxBTC 251." It appears that MaxBTC is used here as a strict upper bound to refer to maximum number of bitcoins that will ever exist. There will always be ...
Murch's user avatar
  • 76k
2 votes
Accepted

See How Many Bitcoins Existed

Yes. This chart from blockchain.info is one. There are probably many more.
Jimmy Song's user avatar
  • 7,759
2 votes

Why is Bitcoin defined as having 8 decimal places?

The world GDP is $74 trillion footnote: a according to the World Bank in 2017. The max supply of Bitcoin with 108 base units is 2,100 trillion Satoshis. If Bitcoin is to back the world's money, ...
Travis Cross's user avatar
2 votes
Accepted

Why bitcoin is not inflationary?

If one could simply "print more" Bitcoins, then it would quickly lose its value (this is the definition of inflation btw) because of increased supply. This is the main reason why, for instance, the ...
Martin Wickman's user avatar
2 votes
Accepted

Is there really a limited supply of bitcoin?

You can't go into an "infinite" amount of decimal places. The smallest unit of Bitcoin is the satoshi, which is 0.00000001 bitcoin. There will be a total of 2100000000000000 satoshi.
Greg Hewgill's user avatar
  • 3,421
2 votes

Mining = Printing money

Is mining gold creating money? It's called mining because work goes into it. The money that comes out of it is remuneration. When the FED increases (er, eases) money into our system it's done by ...
Brannon's user avatar
  • 189
2 votes

Does the fact that bitcoins are limited prove that the system is a scam?

There are some good answers here. I'd just like to point out that the thing with scams is that there's a lie or deception involved in it. With bitcoin there is no such thing. Everyone knows about the ...
Abdussamad's user avatar
  • 2,699
2 votes

Does the fact that bitcoins are limited prove that the system is a scam?

Nobody who has even the smallest understanding of economy would spend bitcoin to buy things with because it is guaranteed that it will be, sooner or later more valuable over time. If you assume this ...
Dan Mandel's user avatar
2 votes

Bitcoin Controlled Supply

The formula above shows the total supply to be created. The block rewards will halve 32 times before 2140. While the reward halves, Bitcoin has 8 digits (in the mantissa) after the decimal point, so ...
MCCCS's user avatar
  • 10.2k
2 votes

Bitcoin Controlled Supply

It is still unclear how Satoshi chose all the constants present in the Bitcoin protocol (10 mins blocks, 21 million coins, 2016 blocks intervals, etc...). While we'll never know for sure the full ...
alcio's user avatar
  • 1,274
2 votes

Where exactly is the scarcity?

Units are arbitrary, as your illustrated with the gold example. Scarcity is not about how much there is of something. It's about how much there won't be of something. Let me paint another example. ...
Paul's user avatar
  • 301
2 votes
Accepted

Understanding "Bitcoin Inflation vs. Time" chart

The blue line on the graph represents the total supply of BTC in existence at that point in time (right axis). The red line represents the instantaneous annualized inflation of the BTC supply (left ...
chytrik's user avatar
  • 18.3k
2 votes
Accepted

How will Bitcoin be inflation free?

Inflation is newly mined coins added to circulating supply. When block rewards become zero and transaction fees are the only incentives for miners, there won't be any new coins added to circulating ...
user119042's user avatar

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