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So bitcoin uses sha256, litecoin scrypt, dash x11.
Where is revision location(source code filename, approx line position) of this algorithm?
Is it widespread and hard to revise? or easy to change?
How change to x11 algorithm? Some site says x11 is best algorithm.
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I know 21,000,000 is maximum bitcoin number.
Now its remaining 4,000,000 approx.
So its over at 2140 year?
What happen then? If all mined, all current many miner hardwares (ASIC) all become trash?
Or they can continue finding new block, but reward is only bitcoin transaction fee?
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I concerned because I think I will launch new coin.
Then for block this, I should delay upload source to github?
Relax, mate. No one will attack your coin. There is no point, really. Lots of POW altcoins are launched daily and no one attacks them because there's really no point to. Why would anyone waste hashpower they'd rather use to mine a profitable coin to attack a new and unknown coin? haha you are right. But what if that coin passed successful ICO and start like 1$ per coin, and if enlisted to some exchanges? |
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More specific, the part "Remote Procedure Calls (RPCs)"... There are also other options, like running bitcore: https://bitcore.io/guides/wallet-service/This being said: i never recommand anybody to start using a web wallet, starting a wallet service as a novice user without any trust is a bad idear (IMHO) Thx. If I maintain most bitcoin source as-is, other developer can make my coin's wallet with using that bitcore API? If you clone bitcoin, your developer *should* be able to clone bitcore, changing the same parameters that were changed when cloning bitcoin... I success cloning litecoin v0.8, but it is 4 years ago version. Now I want to clone newest bitcoin source, 0.15.1. But when I see it, source code position/structure changed a lot. For example, base58.h 's "PUBKEY_ADDRESS = 35" is changed to chainparams.cpp 's "base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111); What this means and how to change key address's prefix? |
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Where is "PUBKEY_ADDRESS", "PUBKEY_ADDRESS_TEST" value moved to? originally at src/base58.h AND what is " std::vector<unsigned char>(1.0) " ? originally this was just number based on https://en.bitcoin.it/wiki/List_of_address_prefixesWhy they changed this part more hard? Why it is problem just use "PUBKEY_ADDRESS = 44"? |
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Those files were split into validation.{cpp, h} and net_processing.{cpp, h}.
For lines that you have to change, many of them still exist just in different places. So you can use grep to search for them.
Thanks much! I saw this series, https://www.youtube.com/watch?v=mDGxGYvkDEEbut this is based on litecoin source version 0.8 (4 years ago version) So there are many places to revise to make altcoin, are there no video or documents covering all the places needed to revise based on newest version? |
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More specific, the part "Remote Procedure Calls (RPCs)"... There are also other options, like running bitcore: https://bitcore.io/guides/wallet-service/This being said: i never recommand anybody to start using a web wallet, starting a wallet service as a novice user without any trust is a bad idear (IMHO) Thx. If I maintain most bitcoin source as-is, other developer can make my coin's wallet with using that bitcore API? |
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So there are many web-wallet services providing sites.
How they program it?
Are there bitcoin's opened API to generate wallet and address to receive coin?
How about other alt-coin's cases?
If that coin is based on bitcoin sources and copied, then they also automatically provide API?
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Most articles, datas got googled based on very older version, even 4 years ago.
At that time's version, there is file of src/Main.cpp, src/Main.h where some key parameters existed.
But recent source (Bitcoin, 0.15.1) does not have above files (Main.cpp, Main.h).
Maybe source code there was moved?
To where and how to locate them all to make alt-coin?
Are there no tutorial or documents about source code location changing guide?
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What do you mean by "What happen if someone revise bitcoin source and launch it as like bitcoin"? That somebody may launch a "bitcoin wallet" on another website or through social media, and it's rigged to steal coins? Sure this can be done and has already happened, but it's just a matter of trusting the wallet and the page you got it from - it's just like a banking trojan, not really a danger for Bitcoin, just for people who are not careful about the software they use.
I thought if someone (has bad intent) revise bitcoin source and compile, and if he maintain 51% of total computing power, then he wins and his revised source take bitcoin name? A 51% attack doesn't necessarily need 51% of nodes to work. 51% attack needs more hashrate than the rest of the miners combined. Of course this can't be happen now because he can't get 51% of total computers installed bitcoin? Even if you change the bitcoin source code and compile it, you'll still need to get people to install it which would be a very uphill task. Also, if your revised bitcoin node does not follow the bitcoin nodes consensus rules, it will most likely be IP banned by other nodes it attempts to pair (peer) to. Any node software that does not follow the bitcoin consensus rules is NOT a bitcoin node, and it will form its own network. For example, if your revised version attempts to spend more coins than inputs, the transaction will not be rejected by the nodes it relays the transaction to and the transaction will not be relayed to other nodes, therefore any node running your version of the software will form their own network different from the Bitcoin network. After the first block reward halving from 50BTC to 25BTC in 2012, some miners patched their software to keep mining blocks with 50BTC block reward but the other nodes in the network just rejected the transactions and didn't relay it. That is what will happen if your software changes any bitcoin consensus rules without you having majority of the node support. Then, how about early started new coin's case?
Some big guy can take over new coins with over 51% computing power?
It's possible, yes, but what would be the point? Thanks. Situation seems be more cleared in mind. It's possible, yes, but what would be the point?
I concerned because I think I will launch new coin. Then for block this, I should delay upload source to github? |
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So for ICO, website need.
Basically it does ICO automatic coin distribution.
It should provide automatic system with account making, coin adding in exchange of user's deposit of Bitcoin, Ethereum, etc.
And dashboard, web wallet of that ICO coin.
For side feature, FAQ, contact support, calander function with coin buying cap and bonus rate schedule, etc.
Are there solution for this? Or all ICOs doing this job on their own with web developer?
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What do you mean by "What happen if someone revise bitcoin source and launch it as like bitcoin"? That somebody may launch a "bitcoin wallet" on another website or through social media, and it's rigged to steal coins? Sure this can be done and has already happened, but it's just a matter of trusting the wallet and the page you got it from - it's just like a banking trojan, not really a danger for Bitcoin, just for people who are not careful about the software they use.
I thought if someone (has bad intent) revise bitcoin source and compile, and if he maintain 51% of total computing power, then he wins and his revised source take bitcoin name? Of course this can't be happen now because he can't get 51% of total computers installed bitcoin? Then, how about early started new coin's case? Some big guy can take over new coins with over 51% computing power? |
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I heard that most recent icos uses Ethereum platform and make tokens on it.
Is this best option now?
How about cloning Bitcoin or litecoin and start new coin?
What is more good and why?
Thanks.
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Yes already I know bitcoin cash and others.
They are fine because name is different and people see it as different coin.
My question is how can we block bad hacker's revision to bitcoin source itself and pretend that is legitimate source revision?
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I know Bitcoin Diamond give away some portion of their coins to Bitcoin owners for just free and without any acting of owners. One day it just generated even before knowing of that.
Their intent of this act is of course for promoting & advertising their coins?
Then how they perform this? Are there any code example of executing this?
Thanks.
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So now there are many ICOs, new coins.
Where most of them keep some ratio of coins for themselves to use develop, marketing.
1. Then techinically (programming point of view), how to give some coin to some specific wallet address or some user account even before system started and before genesis block started?
2. And sell those coins to make develop, marketing money.
How to give away coins to normal users worldwidely in exchange of their money (USD, BTC)?
3. Are there example code for abvoe 1,2 process?
4. Until all pre-sale, ICO ended, coin system is not started yet, right?
Thanks.
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1. How bitcoin system can block bad intent sources?
What happen if someone revise bitcoin source and launch it as like bitcoin?
If he has intend that he will take some bitcoin?
2. How bitcoin system can adopt legitimate improvement, changes of sources?
There is many volunteers developers to bitcoin sources, continuously updated bitcoin sources.
Who decide adoption of changes and how it can be spread to normal bitcoin system users worldwide?
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I know Bitcoin Cash is almost same with bitcoin. Just few parameters different.
How can I create like that? I got bitcoin source downloaded, forked to my git account, installed vmware workstation and there I installed ubuntu.
Then what? Bitcoin source file revision?
Where is location of specific parameters?
Are there no tutorial or documents, video about this subject? (Bitcoin copied altcoin)
Thanks.
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Correct me if I know wrong.
I know the reason like this,
If some programmer want to revise the bitcoin source and after done, for test, he need to compile revised source to make new running file, -qt.exe
Is this right?
Thanks.
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I want to make alt-coin.
I want to do this without install ubuntu. Can I? Is this possible?
And why compiling process need? Compiling bitcoin source is really hard in windows 10, right?
And there is already compile done -qt.exe file at googling.
But if I change parameters at source code, then I need to recompile and make another version's -qt.exe file?
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