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4
votes
2answers
214 views

Must a Block contain a coinbase transaction?

Must a block contain a coinbase transaction? If so, how is this enforced?
-1
votes
2answers
31 views

The number of Bitcoins in existence will never exceed 21 million

Many questions say so. I do not understand anything what you say there about the blocks. Just tell me how do you make it a currency of the future if most of the people (there is 7.5 billion of them on ...
0
votes
2answers
26 views

Which pooled mining scheme is better in terms of constant mining?

I'm comparing gash.io with slush scheme. Say I mine 24x7 without pool hopping at 5GH/s. Will the BTC amount be the same if I mine at slush or gash.io. And what if I get disconnected from either of ...
1
vote
1answer
38 views

Premining documentation?

I'm looking for more information on how to actually premine a coin. I would be grateful if someone can show me an example. What I've tried so far does and not work, I'm basically mining the first ...
-1
votes
1answer
42 views

How can I limit the mining to specifics miners authentified by private key or something like that?

I know how to code in C++, but I don't know really how all mining system works. I have my altcoin, and I would like to block reward blocks to miners which are not authentified (something by private ...
1
vote
1answer
93 views

Is there a way of rewarding users who confirm others' transactions?

Users who confirm or validate others' transactions are performing a public service on the Bitcoin network. Is there any way to reward such users, perhaps by giving them priority for confirmation of ...
0
votes
0answers
40 views

How can I split the block reward to multiple addresses?

According to this page: https://en.bitcoin.it/wiki/Protocol_specification#Transaction_Verification It's possible to specify multiple addresses for the coinbase transaction so that a mined block gets ...
1
vote
0answers
35 views

Non LuckyCoin descendant alt-coins with fair “lucky blocks”?

Dogecoin just dropped the "lucky block" stuff after it was found out the "luckiness" wasn't entirely random - multiminers were waiting for the lucky blocks to appear and dropping their hashing power ...
2
votes
1answer
67 views

Verification of transaction once trasaction is broadcasted

I have few doubts regarding verification of transaction and am trying to find answers from last few days. I agree similar post exist in this portal but I am not getting satisfactory answer for my ...
0
votes
1answer
229 views

Coinbase maturity of 100 transactions [duplicate]

The protocol rules state that For each input, if the referenced output transaction is coinbase (i.e. only 1 input, with hash=0, n=-1), it must have at least COINBASE_MATURITY (100) ...
3
votes
2answers
124 views

Transaction fees when a block chain is discarded

I'm a bit new to the bitcoin system, so I apologize if this is a "noob" question. A user attempts to take all the unverified transactions it knows about and aggregate them in a chain block. The same ...
2
votes
3answers
127 views

Any need for coinbase field in coinbase transaction?

My understanding is that every block in the bitcoin blockchain has a coinbase transaction which contains a coinbase field. It is essentially an orphan field (placeholder) for use in claiming existing ...
1
vote
1answer
63 views

What is short pseudocode for determining the total number of bitcoins mined?

Here's what I have so far: total_epochs = current_block_height % 210000 total_coins = 0; for(i = 1; i <= total_epochs; i++) { reward = 100 / 2^(i * 210000 / 210000); total_coins += 210000 * ...
2
votes
1answer
343 views

How is block reward set in time?

Many coins have dynamic block reward over the time, for example Bitcoin was 50BTC/block years ago and now 25BTC. My question is how is it defined in the source code ? I searched in Litecoin's source ...
0
votes
0answers
75 views

createrawtransaction for coinbase transaction

I am trying to use createrawtransaction to create a basic coinbase transaction. However, I can't find a way to do it - createrawtransaction always expects txid and vout, which do not exist for ...
3
votes
3answers
231 views

Why is the reward decreasing while the difficulty of mining is increasing?

I was wondering why Bitcoin has been designed in a way that rewards are decreasing while the difficulty of mining is increasing. To me this is counter-intuitive and leads to the situation when miners ...
3
votes
3answers
258 views

Why Reward Size 50 (21 Million Coins)?

I have already read the following answer which is not really meaningful: 21 Million Calculation Here's a mathematical explanation: Calculate the number of blocks per 4 year cycle: 6 blocks ...
1
vote
2answers
189 views

Popularity based mining (variable block reward)

I am thinking of an alternative mining scheme where block reward would grow (or decrease) with popularity of the coin. The rationale behind this idea is to make an exchange rate more stable since ...
1
vote
1answer
68 views

Does mining activity only exist if there are bitcoin transactions? [duplicate]

Bitcoin's mining only exists, if there are some transactions, right? If nobody trades bitcoins, the miners don't have any transactions to validate, and so the number of bitcoins in circulation doesn't ...
1
vote
1answer
3k views

How To Get Copy of Bitcoin Source Code

Does anyone have an idea of where can I find a copy of the bitcoin source code. I mean doesn't it supposed to be open source, where is the open source project for bitcoin so I can read the code.
3
votes
2answers
238 views

How do Bitcoin clients know how many new bitcoins to mint when creating a block?

I understand that lucky clients that create blocks get some transaction fees and are allowed to mint a few new bitcoins to keep for themselves. How do clients know how many new bitcoins to mint for ...
1
vote
1answer
166 views

if a coinbase reward isn't fully spent, can the coins ever be recovered? [duplicate]

If a pool mines a block and is mistakenly rewarding miners with less coins than they should be given, is it possible for others to recover those coins somehow? Or are they lost forever? For example, ...
1
vote
1answer
234 views

What was the design decision behind that the coinbase field can have arbitrary data?

From what I learned, the coinbase field in the block reward transaction can carry any data (As long as smaller than 100b). Why that actually? Was it easier to implement in the beginning? I would just ...
5
votes
2answers
105 views

Can a block ever be empty?

The standard response is "no, the reward is at least one transaction." What about after there is no more reward?
4
votes
4answers
9k views

Litecoin difficulty and reward

How can I know difficulty value and reward for Litecoin network ? I'm looking for website such as http://blockexplorer.com/q/bcperblock http://blockexplorer.com/q/getdifficulty to get ...
2
votes
1answer
6k views

How many Bitcoin are mined per day?

A block is generated every ten minutes. The reward changes periodically, and will halve 32 more times. What is the approximately daily reward across the entire network?
1
vote
1answer
239 views

What ultimately happens to mining if blocks contain mostly non-Bitcoin data?

I'm trying to understand what can happen if A block consists entirely of 3rd party (xCoin) data like Namecoin There are no Tx fees to collect since they are on alternate chains. Assume that the ...
3
votes
1answer
100 views

What percent of recently mined coins being actively traded vs saved?

I'm trying to understand the recent increase in BTC value in relation to mining. I am trying to answer the question Are miners (with powerful ASIC hardware) saving the BTC, and not selling them, ...
6
votes
2answers
213 views

What is the reason for halving the rewards?

What is the reasons for halving the rewards? Why not, for example, let the reward be always the same and the amount of currency always growing? Are the reasons technical or just purely ideological?
4
votes
1answer
482 views

How many Halving Days will there be?

The first Halving Day was November 28, 2012, when block 210000 was generated. How many more Halving Days will there be?
1
vote
1answer
509 views

Will the transaction fee economy in Bitcoin follow the commission model?

I've been analyzing the long term results of the block chain. In the process I realized the relationship between the distribution of coins over time, transaction fees, and coins being lost. The full ...
5
votes
3answers
351 views

Bitcoin-related bounties

What is the most common way for one to announce new Bitcoin-related bounties in the community? Is there some website that mediates in the process, or is everything done through the Bitcoin forum?
4
votes
9answers
825 views

Which notable Bitcoin-related sites offer referral rewards? [closed]

TradeHill used to offer a referral bonus when you got other people to sign up with your link, and there are a couple other sites that offer similar rewards for referrals. Which notable Bitcoin-related ...