Questions tagged [alternatives]

Questions about alternative blockchains are off topic unless they are applicable to Bitcoin.

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2
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1answer
95 views

Cryptographic “Central Bank” [duplicate]

Is it possible to create a bitcoin-like system that has a central authority? I know that the reason that many people like bitcoin is that it is completely unregulated, but I was thinking that a "...
4
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2answers
147 views

Which cryptocurrencies deviate significantly from Bitcoin?

There's been dozens of alternate cryptocurrencies but I don't believe many of them did much other than find/replace some strings. We see Bitcoin as made up of the blockchain and proof-of-work via ...
4
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1answer
978 views

Ripple Distributed Consensus Algorithm

What kind of a Consensus Algorithms does ripple use? Is that a leader or leaderless distributed consensus algorithm? Then what?
4
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1answer
393 views

Mini-Blockchain proposal: How is the proof-chain secured against injections?

I have just finished reading the paper Purely P2P Crypto-Currency With Finite Mini-Blockchain by J.D. Bruce. While I got the impression, that the rolling blockchain as an idea might work, I was left ...
0
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1answer
641 views

Creating An Altcoin: How to Lower or Increase Confirmation Times?

When Creating an Altcoin for fun, what variable/attribute do I change in main.cpp file to increase/lower the time it takes for confirmations to take place? Also can the confirmation times be changed ...
3
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1answer
208 views

Why do some mining algorithms run “cooler” than others?

So, there are some altcoin mining algorithms now that run cool, such as X11 and groestl. By cool, I mean even when mining at full GPU capacity, the card still remains at 60C or cooler with little to ...
-2
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1answer
175 views

Bitcoin related research areas [closed]

I have a one year research project in my MSc curriculum. So i was suppose to address a existing issue in bitcoin protocol. Highly appreciate if someone can advise me and give me some ideas. Thank you....
7
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1answer
3k views

Fastest cryptocurrency

What cryptocurrency is the fastest in terms of reaching 100% transaction confirmation? I've found sites like this that show that Fastcoin is the fastest at 48 seconds. I think David Schwartz said ...
2
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3answers
1k views

How many bitcoin clones are out there? [duplicate]

How many bitcoin clones are out there? I mean people changing the name, the hashing algorithm and a few more parameters and creating a new coin that just keeps on copying bitcoin's source code in ...
2
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1answer
57 views

Is it possible to create a system for 'shared wallets' on top of bitcoin?

Is it possible to build a system on top of bitcoin, where: Random people will deposit money in a wallet X. Nobody has access to that wallet. After a few months, those users will vote in other wallets ...
1
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3answers
845 views

Is it theoretically possible to limit the hash rate?

I am thinking of developing an altcoin that is truly asic/pool proof. I haven't tried yet (or even downloaded the source code), but I was wondering if it is possible for the network to behave in such ...
1
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1answer
852 views

How to calculate velocity of Bitcoin?

So determining the value of bitcoin is not the question at stake here. Suppose there's a new bitcoin with a production algorithm that's tied to the feedback rule proposed by McCallum and adjusts ...
13
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2answers
3k views

What is Proof of Burn?

Can someone explain me: What is Proof of Burn What is the difference between Proof of Burn and Proof of Work How Proof of burn works Which virtual currency uses Proof of burn technology instead of ...
2
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1answer
292 views

If more than one coin did the “mini-blockchain” proposal, would that make the weaker coin vulnerable?

So, I was reading this paper as a proposal to the ever growing blockchain problem. In summary, it's security is provided without a full blockchain by having a proof chain with these fields: Previous ...
6
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1answer
178 views

What happens in an extreme case if Ripple fails to make a consensus? Will that part of the network be segmented off?

What if the Ripple trust network becomes many trust hubs and spokes, and the hubs don't trust each other? In this extreme case, that could exist due to extreme network segregation, massive trust-...
6
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1answer
235 views

Have network DDoS attacks ever been successful on any coin?

Has a cryptocurrency network ever been fully DDoSed so that the blockchain did not advance during the attack? If so, which one and how?
1
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1answer
683 views

How does estimated coins calculated on Coinotron?

On 'Cointron' their is wallet table after logged in into the site, how they calculate estimated coins per day, estimated rewards, confirmed rewards and unconfirmed rewards? How does Coinotron derive ...
1
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0answers
616 views

CreateNewBlock : ConnectBlock Fail [closed]

Error Message at server 2 / 3 (peers trying to connect to main server) root@ubuntu:~/dogequark/src# cat ~/.dogequark/dogequark.cterminate called after throwing an instance of 'std::runtime_error' ...
4
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3answers
2k views

Are there any cryptocurrencies with no mining beyond participation?

I mean something where just participation in the decentralized network gives you coins somehow and you cannot do anything beyond (excluding more participation, of course, by having multiple PCs and ...
1
vote
1answer
76 views

In a perfect world, should RIPE160 be used as the block ID or transaction ID?

Edit: In this question I'm looking at storage advantages, and network bandwidth savings. Given that the TxID and BlockID uses SHA256 to uniquely identify a transaction (and block) is there any ...
2
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1answer
2k views

Ripple node compensation

How does Ripple charge fees for XRP-only transactions to compensate nodes? I've heard of what I can only describe as a "network fee", that some XRP are burned per transaction. What is the motivation ...
4
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1answer
153 views

Is there a website that compares the features of different cryptocoins?

Is there any website where I can find a comparison of different altcoins by features? I'm not interested in hashrate, price, difficulty, but rather in implemented features such as: Used difficulty ...
2
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1answer
245 views

Ripple network overhead

I like the way Ripple provides effectively instantaneous transaction verification. When building consensus how much traffic and their equivalent of orphan blocks are accumulated? Is communication ...
2
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1answer
574 views

Is Ripple's UNL list maintained by the network?

Who maintains the Ripple UNL list? This says We periodically poll our sources. If they mention a new node with a score over an amount, we add the node to our trusted core set. Who is "we"? Are "...
7
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5answers
6k views

Are there any resources for creating your own coin?

I have some experiments I want to do for creating my own coin. I've seen stuff like coingen.io but I want to do it myself. I also will be messing with other things like the hashing algorithm. Are ...
3
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1answer
78 views

Are there any _severe_ drawbacks of bitcoin justifying all the alternatives?

There exist quite some alternatives to bitcoin that are partially based on it, and I'm sure their creators all are convinced they improve upon something. But are there any serious drawbacks in bitcoin ...
2
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3answers
2k views

What are the most popular crypto currencies after Bitcoin?

I am trying to determine which crypto currencies are the most popular with the assumption that Bitcoin is the most popular one. This question is up to different interpretations because "most popular" ...
5
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2answers
558 views

How does Nextcoin convert 256-bit Curve25519 public keys into ~20 arabic numerals?

Nextcoin seems to convert 256-bit Curve25519 256-bit public keys into "account numbers" that have only arabic numbers and seem to only have a length of 20. How is that done? Examples In the ...
3
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3answers
13k views

Where do these coins gain their value?

I have been mining coins for a long time (started with BTC/LTC years ago, moved to altcoins recently) and have realized I am not clear on the actual source of the value. Do the exchanges deem the ...
0
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1answer
718 views

Can two crypto currencies have the same name?

I noted today that coingen.io makes it easy to make crypto currencies. I was wondering if it makes sense to register currencies named after countries, gods and companies to hoard them. AFAIK there is ...
1
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3answers
122 views

Making change in a timely manner

If using Bitcoins in a real world brick and mortar store, a customer presents a paper with a QR code, merchant scans QR code and deducts purchase cost from Bitcoin total presented. How can merchant ...
9
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3answers
5k views

How to determine what type of coins a wallet.dat contains?

I have a number of wallets. Is it possible to detect the type of (alternative) coin it contains?
1
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1answer
158 views

Why aren't blocks “zipped”?

Considering how large the total blockchain is relative to average download speeds, why were the blocks never data compressed before being sent? Why could this not be implemented on a new alt?
3
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4answers
1k views

Are There Examples of Asset Backed Virtual Currencies?

Here is a very natural idea: an entity creates a new virtual currency with the following properties: Only that entity has the capability to issue new quantities of that currency That entity makes ...
3
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2answers
3k views

Profitability comparisons for Quarkcoin and Primecoin?

I've found sites where you can put your hash rate for scrypt and SHA-256 to check which cryptocurrency would be the most profitable for you to mine, such as: http://dustcoin.com/ http://www.coinwarz....
3
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1answer
721 views

What protocols are built on top of Bitcoin?

Mastercoin is described as: "both a new type of currency (MSC) and a platform. It is a new protocol layer running on top of Bitcoin like HTTP runs on top of TCP/IP. Its purpose is to build upon the ...
2
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1answer
78 views

What exactly would need to be added to Bitcoin to support Zerocoin?

I have read some information about Zerocoin, but not the actual paper. My question is - what exactly would need to be added to Bitcoin full nodes in order to implement it? Just the special "zerocoin ...
2
votes
1answer
145 views

Cryptoissues? (stocks & bonds)

Are there any examples of cryptoequities or cryptoliabilities? I've seen the cryptostocks site, but it doesn't look to be what I'm envisioning. For simplicity's stake, please imagine a corporation ...
2
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1answer
213 views

“Instantaneous” transaction verification?

Jan Moritz Lindemann graciously educated me that difficulty is used not only to regulate the creation rate of a cryptocurrency but also to allow for block propagation thus prevent orphaned blocks. ...
0
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1answer
273 views

Purpose of difficulty?

Is the purpose of difficulty only to manage the rate of a cryptocurrency's creation, or should difficulty also increase over time to compensate for Moore's Law for a consistent level of security? ...
1
vote
1answer
215 views

Possible to temporarily reduce the supply of a cryptocurrency?

Does a cryptocurrency that can have its supply be reduced based on some factor currently exist? If not, is this possible? If so, how?
1
vote
3answers
261 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 ...
0
votes
1answer
125 views

How many currency units in 1xBTC / 1xAltCoin? [duplicate]

Since BitCoin (and AltCoins) are divisible by up to 8 decimal places, does that technically mean that 1xBTC (or 1xAltCoin) is equal to 1 billion individual units of currency?
6
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3answers
543 views

What's stopping an infinite number of altcoins with the same protocol from appearing in the future?

My novice understanding of BTC is that BTC is valuable because it's scarce - mathematically, there can only be 21M BTC, no more. What's stopping another altcoins from starting with the same ...
1
vote
2answers
865 views

How to keep track on new cryptocurrencies

Here is a situation: new cryptocurrencies appears with a huge speed and also most of them are just useless clones, there might be some interesting one with new ideas. I would like be know when they ...
1
vote
1answer
880 views

Quarkcoin's bitcoin-qt fork won't recognise unspent transaction

I've got a problem with my bitcoin wallet client, I got around 10 QRK by mining via a pool, transferred them to my local wallet and then sent them to btc-e, I got a dialogue box saying something about ...
7
votes
2answers
9k views

The value of Quarkcoin knowing that big amount was preminted

Few hours ago I was looking at bitcoin.stackexchange and found a question about quarkcoin. I was curious to know what is this. Reading a little bit I have found that it does not provide anything new ...
3
votes
2answers
7k views

Changing p2p to create a quark coin mining pool?

I've been trying to mine some quarkcoins pretty unsuccessfully. I can only find two pools that are up and neither seem to have returned anything, even after hashing for 24 hours. I thought perhaps ...
2
votes
0answers
246 views

Which program is suitable to server mining of Feathercoin? [closed]

I have web hosting virtualized Windows 2012 Server without GPU and with one core of Intel Xeon 5520. I pay it anyway and I use about 10% CPU. I would like to use the rest for CPU mining feathercoin. ...
2
votes
2answers
5k views

Is ASIC miner worth my money? [closed]

I started to mine BTC recently with my single 7970, and I'm getting 590MH speed on it. Using some BTC profit calculators that I've found on the internet tell me I could earn ~$300-400 worth of BTC ...