Questions tagged [alternatives]

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

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Can a blockchain have duplicate block hashes?

I am writing an indexer that will work with various blockchains and not just Bitcoin. I am wondering if it is safe to assume that block hashes will be unique for a given blockchain, across reorgs. Is ...
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1 answer
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What is the alternative for an exchange which doesnt want to run a node of a coin traded?

It seems to be best practice for an exchange to run a node itself for a coin traded there. But, is there an alternative? A third party service? If yes, which are recommended and why?
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1 answer
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how to make own coin with soft fork? [closed]

What I am looking to do is soft fork on litecoin and create my own coin! I know that I need to make a node but I can't find any process that shows me how to create my own coin.
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1 vote
0 answers
24 views

Is there actually such a thing as "blockchains" being used right now for actual things? [closed]

In the last few years, I've heard "blockchain" and "blockchain 2.0" and many other such buzzwords repeated so many times that I'm beginning to wonder if I've missed out on ...
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1 vote
1 answer
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Can you have a cryptocurrency with a single source of truth?

Can you have a cryptocurrency that's based on TRUST? (how dare I use this dirty word haha) Everyone who participates in the system agrees to trust this 1 party only, because they find them trustworthy....
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1 answer
57 views

Chat online using Bitcoin addresses?

I was surfing on the web and trying to find a chat app that uses Bitcoin address instead of phone numbers or any other identifier. Do you know about any project in this field?
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1 answer
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Trying CashApp to add funds and purchase Bitcoin immediately but not working, Have done all banking requirements, IS THERE ALTERNATIVE [closed]

Details: I was successful in entering in my bank information on Cash App however, keeps saying transfer failed even in the process of adding cash into the app from my bank, so I can use that to buy ...
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0 votes
2 answers
363 views

block.io alternative? [closed]

Hi is there a alternative service to block.io Unfortunately they are not allowing mainet wallet on developer api and their monthly cost is too high. So looking for an alternative? I want to use ...
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1 vote
1 answer
156 views

A Blockchain that merges mining forks and could be more power-efficient? [closed]

I'm new to blockchain technology so I'm sorry if I'm using wrong terminology. This is not a Bitcoin question, but a general blockchain question. Imagine a theoretical blockchain that uses gradual ...
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1 answer
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IoT to Hyperledger Fabric, and Tracing / Certifying data

I'm thinking about IoT and Blockchain to certifying data. My blockchain is not public, and it has 3 nodes. I use Hyperledger So, I have a sensor, that is a light blockchain client, not powerful ...
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1 vote
1 answer
54 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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5 votes
2 answers
125 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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1 vote
1 answer
497 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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1 vote
1 answer
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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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0 votes
1 answer
140 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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0 votes
1 answer
2k 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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2 votes
3 answers
534 views

Does it make sense to design a mutable blockchain? [closed]

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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0 votes
2 answers
65 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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0 votes
1 answer
182 views

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

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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0 votes
1 answer
143 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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3 votes
2 answers
181 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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2 votes
1 answer
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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6 votes
2 answers
277 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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0 votes
1 answer
781 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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1 vote
1 answer
225 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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1 vote
2 answers
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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3 votes
3 answers
1k 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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2 votes
2 answers
1k 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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4 votes
1 answer
1k 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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2 votes
0 answers
125 views

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

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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3 votes
1 answer
365 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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4 votes
1 answer
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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1 vote
1 answer
92 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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2 votes
1 answer
509 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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0 votes
2 answers
185 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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0 votes
1 answer
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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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1 vote
1 answer
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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9 votes
2 answers
508 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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2 votes
3 answers
152 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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2 votes
1 answer
311 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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1 vote
1 answer
174 views

Projects built on the Tendermint platform? [closed]

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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10 votes
2 answers
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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0 votes
1 answer
204 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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4 votes
1 answer
492 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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  • 1,034
1 vote
2 answers
790 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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1 vote
4 answers
215 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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1 vote
2 answers
149 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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  • 1,967
0 votes
2 answers
645 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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4 votes
2 answers
2k 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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1 vote
2 answers
164 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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