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Questions tagged [alternatives]

Non-Bitcoin "alternative" blockchains, cryptocurrencies or methods of storing and exchanging value

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26 views

Can an account prefix in a NXT clone blockchain be longer than three characters?

I'm getting errors setting up the account prefix after cloning NXT with the Nxt Blockchain Creation Kit. Are there restrictions on how many characters?
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2answers
56 views

Can the coin symbol prefix in a cloned NXT blockchain start with a digit? [closed]

Creating a new blockchain with the Nxt Blockchain Creation Kit, is it possible to use a coin symbol prefix beginning with a digit in the wallet address? I get an error that the address is malformed ...
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1answer
122 views

Is PBFT a consensus algorithm?

Can we consider PBFT (Practical Byzantine Fault Tolerance) as a consensus algorithm ? And if yes, How does it work? And is it similar to other consensuses such as PoW, PoS or PoA ? Or it is totally ...
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1answer
37 views

Delegated Proof of Stake (DPOS) vs. Proof of stake?

What is the main difference between Delegated Proof of Stake (DPOS) vs. Proof of Stake? Is there any significant advantage for security? (since PoS in general suffers security problems.) And which ...
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1answer
18 views

What would happen to bitcoin in a world with no electricity/internet?

Many people discuss gold as an 'apocalyptic' currency because it will be what's used (supposedly) if the world ends, or there is some cataclysmic event that wipes out the power grid and internet ...
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1answer
213 views

Template of a DAO?

Where can I find a simple smart contract template of a DAO? not The DAO, but a Decentralized Autonomous Organization, rules, codes, bylaws, responsibilities, etc.
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2answers
89 views

Does it make sense to design a mutable blockchain?

I work in a large consulting firm which is marketing a mutable blockchain solution to its clients. But I personally fail to grasp any advantage of using a blockchain design if you are discarding ...
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2answers
37 views

Why does the blockchain keep transaction history rather than balance?

The blockchain is very large and takes a lot of time to download to a client. Apparently, the only thing we need from the blockchain is the balance of each "user" (- public key). So, instead of ...
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1answer
88 views

I am looking for a list of all the public repositories for as many different cryptocurrencies as possible

I am interested in reviewing github repositories of many different cryptocurrencies to enhance my understanding and know the differences between them. Does anyone know of an online list of the links ...
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1answer
61 views

How are gridcoin transactions validated?

Bitcoin uses it's calculations to validate transactions but apperently gridcoin doesn't take any transaction data into the calculation of BOINC projects. On the wikipedia page of Gridcoin the ...
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2answers
148 views

How difficult is it to invent a new cryptocurrency? (In regards to time, money, technical knowledge, etc.)

Although I initially believed there were only a couple cryptocurrencies available on the market, after some research, I've discovered that there are well over a thousand different cryptocurrencies!......
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1answer
2k views

Where does Bittrex/Binance (alternative cryptocurrency markets) get their coins?

There are several cryptocurrency platforms like Bittrex, Binance where you can transfer your BTCs (or other mainstream coin types such as ETH, LTC) to and buy alternative coins (IOTA, XRP or thousand ...
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Consensual miner reward subsidy height (amount of new coins)

Has someone tried to implement consensual miner reward subsidy height? I mean a cryptocurrency where miners would use some kind of consensus on what the height of next block reward subsidy should be (...
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2answers
229 views

How is IOTA's Tangle different than classical blockchains?

How is IOTA's Tangle different than classical blockchains? What are the main differences and how do they translate to real world usage? What are the strengths and weaknesses of the Tangle?
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1answer
424 views

Minimum and maximum values of “all” cryptocurrencies?

I can't find a "cryptocurrency" stack exchange, and I have a question that spans all cryptocurrencies, in particular, how to handle them programatically - one database column to rule them "all"! I ...
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1answer
207 views

I withdrew my BTC coins to a NEO wallet Did i lose my coins? How can i recover them?

After a long corrospondance with Bittrex support staff i was given the following information. "If you have sent BTC to a NEO address, these wallets have addresses that validate to each other, but ...
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2answers
6k views

electrum, jaxx, and exodus

I am interested in storing some bitcoin, etheruim, altcoins a year or some years. I know hardware or paper wallets are the best choice, but as an absolute newbie, I decided to use a software offline ...
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2answers
851 views

Why can't timestamps be a substitute for blockchain?

I'm super fascinated by the entire concept of proof of work and how it allows for a trustless, decentralized system. Despite knowing that proof of work (or proof of stake) can be an inevitable ...
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2answers
824 views

Is it possible to use the same BIP39 list of seed words to create addresses for different crypto assets?

Currently, as a matter of convenience, I'm holding small about of crypto assets on various exchanges. It's not ideal - I'd much rather store them locally, have access to the private keys, be in full ...
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1answer
975 views

How scalable is a Blockchain-based system?

This question as stated above is a bit vague, but let me make it a bit more clear: Recently, I have seen many services pop up that state that they are secure, fault-tolerant, trustless and scalable ...
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0answers
108 views

Zero-knowledge/Arthur-Merlin Proof-of-Work for NP-like problems with coin flips hashes of recent transactions

On a previous answer to a question about making proof-of-work more useful, two challenges were provided: "1. The work must be much, much easier to verify than to do, and 2. The work must in fact ...
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1answer
341 views

What other decentralized bitcoin / altcoin exchanges are there besides Bitsquare?

I recently found out about Bitsquare's decentralized exchange that lets you trade altcoin or fiat. But are there other decentralized altcoin exchanges out there like bitsquare?
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1answer
6k views

NXT, Ignis, and Ardor Confusion. Purpose of NXT when there is Ignis / Ardor?

If NXT is switching to Ardor, what is the purpose of holding NXT? There is another snapshot that's happening with NXT for the coin Ignis, but how what's the purpose of Ardor then? So is Ignis the new ...
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1answer
79 views

Will the increasing difficulty in Bitcoin mining push miners to a different currency?

I've been reading all of the "Is mining still profitable?" questions, and the consensus appears to be the following: Yes, difficulty is increasing, but profitability is uncertain due to the ...
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1answer
496 views

Non bitcoin like blockchains

I have been going through a lot of articles lately which stress on the fact that blockchain technology is going to revolutionize a lot of industries like finance, supply-chain, health care, etc. On ...
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2answers
166 views

Blockchain implementation in banks

Implementation of Blockchain in banks is said to be the new trend now. My question is: Would the private blockchain be kept private in a bank or will it be shared among a group of banks (or even ...
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1answer
235 views

can I use elements of the blockchain to protect the integrity of a leaderboard without central servers?

For a World of Warcraft community feature conception contest I've come up with something that involves a leaderboard. However, World of Warcraft addons are purely individual, so a centralize platform ...
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1answer
4k views

What's difference between Multichain, Chain, Hyperledger, Ethereum etc [closed]

I stumbled upon multiple Blockchain protocols framework. For example Multichain http://www.multichain.com/ What's difference between this one and the others ?
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2answers
487 views

What are the differences (and value adds) among all the different Crypto Currencies?

This website lists hundreds of crypto currencies. Some whimsical, others with a unique value. Is there a catalog, or diff between all the implementations that highlights innovation, or a unique use ...
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3answers
137 views

Is there any bitcoin fork which goal is storing arbitrary information?

I know that there is Namecoin, which saves key:value pair. Is thete other similar solutions? Maybe for arbitrary textblocks? Update: how they do it? Delaware Blockchain Initiative to Streamline ...
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1answer
269 views

How to make cryptocurrency easier for law enforcement?

I am researching the topic of cryptocurrency and its impact on society. It's often said that cryptocurrency is equivalent to cash, but that is clearly not true since cash is very difficult to ...
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1answer
156 views

Projects built on the Tendermint platform?

The Tendermint project sounds like a very promising proof-of-stake implementation. What public projects are being built on this platform?
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2answers
2k views

Digital currencies pegged to dollar value

Some digital currencies, like NuBits, declare that they peg their value to dollar or other fiat currency. How does this work? Under what conditions this can work? Can this be distributed, or does ...
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1answer
175 views

Can bitcoin and altcoin co-exist in sidechain? If Yes, strategy

I have private block chain - tweaked bitcoin blockchain with a private coin by creating a Genesis block. Lets call it "PrivateCoin" I also have a sidechain elements/alpha instance, I effectively ...
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1answer
411 views

Why is a short blocktime considered to be unsafe?

I've heard a couple of times "a shorter blocktime is unsafe," (first about Litecoin and now Ethereum) but never understood why. Is it the higher probability of a fork? Why do some people consider a ...
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2answers
703 views

What is the most lightweight proof-of-work algorithm?

I know litecoin was created back in the day using Scrypt as to make it more lightweight but also harder to build ASIC hardware from - so everyday computers could mine. Are there other algorithms one ...
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4answers
194 views

Is There a Safe Way to Decentralize or Spread Ownership of a Company Using Bitcoin or Altcoins?

We are starting a social enterprise that is focusing on home oriented products and services - starting with real estate brokerage services. The profits from this organization will be used to battle ...
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2answers
114 views

Does anyone have a formula for dynamic block durations?

I want to implement this, so does anyone have a formula for dynamic block durations instead of a fixed target of 10 minutes?
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624 views

Create alternative blockchain with proof-of-work

For learning purposes, I want to create an alternative special-purpose blockchain. It would use a proof-of-work function that is different than the one in Bitcoin. Short of forking bitcoin and going ...
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1answer
1k views

Which cryptocurrency has the smallest block time?

What is the lowest block time of any cryptocurrency? I don't mean the time of an individual block, but the target time per block. What is the shortest reasonable block interval?
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145 views

Are there any stochastically dependent proof of work algorithms?

In bitcoin, the probability of discovering a block on the X-th hash is the same1 as it is on the Y-th hash. As such, the probability of discovery is stochastically independent. Are there proof of ...
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1answer
78 views

Is it possible for corporate interests to incentivize securing alternate Blockchains instead of Bitcoin's Blockchain?

Is it possible for corporate interests to incentivize securing POW of alternate blockchains instead of Bitcoin's blockchain? Given the large amount of funding and/or "partnerships" announced the last ...
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1answer
381 views

Calculating the mining profitability of Novacoin

I've been researching altcoins and keep coming across some staggering figures. I think it's just too early to do math, but if I were to farm novacoins for example calculator here and I have pretty ...
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2answers
200 views

WeaveCoin - Extremely High-Speed AltCoin - Is this Possible? [closed]

I've written a proposal for an extremely extremely high-speed transaction verification algorithm: http://kenthagerman.blogspot.ca/2014/08/weavecoin-high-speed-crypto-currency.html Is this possible? ...
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1answer
77 views

Where can new cryptocurrency features be found?

I was wondering what new cryptocurrency features may be introduced. How can I find published new cryptocurrency features?
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1answer
2k views

How can I find out which wallet belongs to which cryptocoin? [duplicate]

I have multiple decrypted wallets in the same folder. How can I find out which wallet belongs to which cryptocoin? All wallets are named wallet_x.dat, so the name gives no hint. UPDATE: I have no ...
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2answers
405 views

Decentralized democratic voting [duplicate]

Has the fundamental problem in cryptovoting, one person, one vote, in a completely decentralized or blockchain centric manner been solved? In other words, how can votes be allocated in a ...
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1answer
94 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 "...
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2answers
145 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 ...
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1answer
954 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?