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Questions tagged [altcoin]

This tag should be used for questions that are relevant to most or all blockchain based cryptocurrencies. If your question is specific to one altcoin, please use/create the tag for that altcoin.

3
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1answer
2k views

Forking PIVX - ERROR: CheckBlockHeader() : proof of work failed

I have forked PIVX and generated new genesis block hash, merkle root and nonce, and changed the rewards parameters. It compiles fine and the daemon starts, I have even got 2 nodes connected, but ...
3
votes
1answer
358 views

Do multi-PoW currencies open up additional attack vectors on a blockchain?

I'm curious if there have been any technical evaluations of the vulnerabilities of cryptocurrencies that utilize more than one proof of work algorithm - for instance, myriadcoin or huntercoin. ...
4
votes
0answers
2k views

Complete list of merged mineable coins? SHA256 + Scrypt

mmpool.org mines these SHA256 PoW coins: Bitcoin Namecoin Ixcoin Devcoin I0coin Groupcoin https://en.bitcoin.it/wiki/Merged_mining_specification claims that it is only used by Namecoin Is there a ...
3
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0answers
109 views

Any Innovations in altcoin tech for Bitcoin’s Script language?

Bitcoin’s Script is the forth-like, non-Turing complete language used for transactions. However, in practice, a very limited number of kinds of scripts are allowed, a number of opcodes have been ...
2
votes
0answers
2k views

Bitconnect transactions show in block explorer, but one transaction is missing from wallet

My Bitconnect address 8Y7D6YfD7htnQ7uYaDHZzQSHtjiXRZfsZ9 has received 2 transactions according to this Bitconnect block explorer tool but only the smaller one for 0.01 is showing up in my Bitconnect ...
2
votes
0answers
353 views

How can we mine first block on bitcoin fork?

We have created our altcoin and genesis block for educational purposes, but we couldn't start the mining process. Because of internal miner has been removed from bitcoin source, we can't mine. We have ...
2
votes
0answers
349 views

How can I evaluate the prospects of mining vs investing?

I have a few thousand dollars that I want to invest in cryptocurrencies now or soon, and was wondering how the current prospects look for ROI of setting up my own 6 gpu mining rig (ether/Zcash/Monero/...
2
votes
0answers
33 views

mining pcie 16x and 1x together caused rejects

I have 5 msi radeon R9 290 cards and this board https://www.asus.com/Motherboards/Z87PLUS/specifications/ . With 3 pcie 16x everything runs smooth but, as soon as I add the first 1x into the equation, ...
2
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0answers
67 views

Does Amit Sahai's indistinguishability obfuscator enable Autonomous Virtual Corporations or “Agents”?

Given that an "Agent" is described as Agents are autonomous programs that maintain their own wallet, which they use to buy server time. Money is obtained by the agent selling services. If demand ...
1
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0answers
19 views

Are there any other balance management systems other than UTXOs and Account Based used by blockchains today?

To know how much balance a user has on the bitcoin blockchain you just need to look at their UTXOs. To do the same in Ethereum you just look at their accounts. Are there any other systems used by ...
1
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0answers
25 views

Failing to create a new address to be used for receiving staking rewards whenever a generated block is accepted

Our problem is that we need to get a new address on each stake. What I've tried so far is: Generating a new address right before a block is accepted and try using it to receive the stakes, but that ...
1
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0answers
41 views

Does PPS reward depend on specific block difficulty?

How is reward per share calculated on PPS payments system? Does it depend on specific block difficulty or average difficulty per day/week/month used? If I have mined two successive blocks with ...
1
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0answers
150 views

Atlcoin: Peers don't sync after one creating new block

I have made an altcoin flowing these steps: 1. Generate genesis block and modify in source code genesis = CreateGenesisBlock(1525404232, 5226643, 0x1e0ffff0, 1, 50 * COIN); consensus....
1
vote
0answers
243 views

How does one create a blockchain snapshot (vs a bootstrap)?

I have read How to create a blockchain snapshot for a hardfork? but it does not answer this question. I understand the bootstrap.dat file is basically a concatenation of the blk000x.dat files, but ...
1
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0answers
68 views

Why for creating a new test coin is suggested to use Litecoin code?

I think I'd prefer to use Bitcoin code. Is there a reason that LiteCoin is preferred? As far as I know, for creating a different coin from BTC source I need to create a genesis block and remove the ...
1
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0answers
55 views

Reduce Confirmations in the block coins to mature

I have created a alternative coin by using the fork of litecoin, and succeeded. But i need to change the Confirmations of first mining transaction How can i reduce the Default Confirmation '101' for ...
1
vote
0answers
757 views

Why is my altcoin node not syncing new blocks?

I setup a new node for my custom altcoin. I cloned and compiled altcoin in my ubuntu server machine. I have generated genesis block and added checkpoints for first two blocks.. I am able to connect ...
1
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0answers
2k views

How do I send my coins from my Verge paper wallet?

I have created a paper wallet and send some coins from my account on binance.com to it ... How can I send them back to binance from the wallet?
1
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0answers
215 views

Altcoin based on Litecoin

I've compiled the Litecoin source using a custom genesis block to create a simple Altcoin for fun. I just have some questions about Bitcoin/Litecoin Qt. When I mine a block using the generate ...
1
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0answers
324 views

How important is Graphics Ram for hashing

Some altcoins are designed to be "memory intensive" to avoid use of ASICs to mine them. Does the RAM refered to here, mean the RAM of the computer or the RAM on the GFX card itself. When looking at ...
1
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0answers
64 views

Problem with NEON wallet

I just started using the neon wallet and everything was going fine. But after I closed it and tried to open it and login again with my key and passphrase it will go on to decrypt my key forever. What ...
1
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0answers
66 views

Are there any properties of cryptocurrency that can help prevent accumulation of wealth by a few individuals?

Over time there seems to be a trend towards consolidation of wealth to a small number of individuals in human society. Are there cryptocurrencies with any properties that could help prevent that ...
1
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0answers
18 views

Framework for handling transactions/wallets in multiple altcoins generically

I'm wondering the framework Poloniex, C-CEX and other bigger exchanges use to handle accounts and transactions for such a high number of cryptocurrencies. What could I use to generically be able to ...
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0answers
394 views

Why do prices of different cryptocurrencies on exchanges often go up/down in synchrony?

This might be a dumb question, but it's been puzzling me for a while. I have noticed that oftentimes, prices for various cryptocurrencies go up/down almost simultaneously. I do understand that ...
1
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0answers
82 views

Why do different currencies use different units of difficulty?

I'm trying to understand the relationship between difficulty and network hash rate. I feel like I understand it for Etherium, where the difficulty is the same as the total number of hashes the network ...
1
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0answers
102 views

Cannot quickly move Tether out of the exchanges into my wallet compared to other pairs (why)?

Getting my feet wet trading on a few exchanges (takes forever to get verified BTW) and have persistent problems over the past few months getting Tether out of the exchanges. My wallet is fine, the ...
1
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0answers
29 views

Sending encryped messages using INSaNe. Messages not sending

I forked INSaNe https://github.com/CryptoCoderz/INSN from github, changed genesis hashes, mined, and sended some coins between two localhost wallets. When i tried to send message from first address to ...
1
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0answers
570 views

Reddcoin Paper Wallet

I am new with crypto and need your help! I create a Reddcoin Paper Wallet with a generator from walletgenerator.net I already deposited an amount there! Now I have another reddcoin address where I ...
1
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0answers
183 views

Why do people mod the bios of his RX 480 card?

I have a single RX 480 card that I use to mine ethash at miningpoolhub. On factory settings, I did 24Mhash/s If I overclock the memory to 2250 MHz, I got 27.5 Mhash/s Some people say that moding ...
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0answers
88 views

Historical price of various cryptocurrencies

I am currently in need of the historical prices of bitcoin and various altcoins for a project I am working on, but I am only able to find historical prices back to around December 2015 using http://...
1
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0answers
273 views

Linux gitian-builder “dpkg: error processing package sudo”

I am using Ubuntu. I cannot compile the Virtual Machine. If i direct to gitian-builder and type into the Terminal: sudo bin/make-base-vm -a i386. It compiles for approximately 3 minutes and than it ...
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0answers
159 views

Problem occurred in running the abe explorer for public blockchain running locally

i have my own blockchain working locally i need to run an abe explorer for the same but i encountered with the problem while running the last command where saiyan is my blockchain name python -m ...
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0answers
260 views

Bitcoin Widgets & API

can anyone recommend the best api/widget for getting Bitcoin, Crypto Currency Charts, Currency Convert and tickers?
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0answers
43 views

Multibit + WooCommerce

I would like to incorporate MultiBit into a wordpress(woocommerce) based site I am designing as a checkout/payment option. Is this at all possible and if so how do I go about it? I cannot find any ...
1
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0answers
83 views

Table of coin parameters

What are the P2P network magic bytes P2PKH version byte P2SH version byte Private key version byte P2P Port RPC Port Atomic units per coin (100,000,000 for bitcoin) for Bitcoin, Bitcoin testnet, ...
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0answers
567 views

How do I transfer altcoins from cryptsy to bittrex?

How do i transfer altcoins from cryptsy to bittrex? Bittrex says this if i open generate the deposit address - When depositing, please send your message unencrypted. If the message is not included ...
1
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0answers
73 views

Is there an easier way to run multiple altcoins in one service than operating each daemon?

I am interested how to operate multiple currencies in one service like modern trading platforms do: Cryptsy(496 trading pairs), Bittrex (328 trading pairs), Poliniex(172 trading pairs). The only way ...
1
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0answers
98 views

How to reduce Proof of Work in bitcoind?

I am trying to create a new genesis block. But it is taking too long to compute (still running). How do I reduce ProofOfWork needed ? Is it this line that I have to modify ? chainparams.cpp#L117 ...
1
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0answers
971 views

How can I mine ALT SHA-256 coins using a Bitmain S4?

The bitmain S4 does 2TH/s out of the box with no overclocking. For many alt SHA-256 coins, this can be 10% - 50% of the entire network hashing power, which would allow us to gain alt coins quickly, ...
1
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0answers
306 views

Qt wallet not compiling - Altcoin

After rewriting litecoin to use the whirlpool algorithm, I'm having issues compiling the qt wallet. Daemon compiles perfectly, yet when I try to compile the qt wallet (linux at this stage) i get this ...
1
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0answers
105 views

Number of transactions and transaction history don't match in XenCoinQt

I am solo mining XenCoin using XenCoin QT v0.6.3.3-g069d718-beta. The number of transactions shown on the overview tab is 9, yet there are 7 transactions listed in the transaction history. Also, ...
1
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0answers
540 views

CreateNewBlock : ConnectBlock Fail

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' ...
0
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0answers
26 views

How many confirmations does a transaction needs to be included in a snapshot?

I bought bitcoin to participate in bitcoin hex. I sent my bitcoin to the electrum wallet and it has over 500 confirmations. Bitcoin Hex will snapshot bitcoin and I want my bitcoin address to be ...
0
votes
0answers
67 views

Generating first block after genesis block in PoS altcoin

I'm currently developing a test altcoin in educational purposes, and can't for some reason generate first pow blocks after generating genesis block. Couple of years ago i successfully made workable ...
0
votes
0answers
11 views

Getting a dollar per KWH estimate for the best crypto currencies for last X months

I'm doing some preliminary research for my company into the viability of cryptocurrency mining, were not planning to mine it ourselves, but it's indirectly relevant; it's kind of a long story. To ...
0
votes
0answers
161 views

CPU Miner return Internal Server Error for getblocktemplate request

I was developing an altcoin using bitcoin v 0.17. I am using CPU miner for mining purposes. I started the miner using this command: ./minerd -a sha256d -o http://localhost:19230 -O adreno:adreno@123 -...
0
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0answers
53 views

What is the best resource to learn and implement z-addresses in ZCash?

I have managed to implement t-addresses, which are a clone of Bitcoin. What is the best resource to understand z-addresses? I want to implement everything myself, including pairings. I have ...
0
votes
0answers
188 views

Are there any Bitcoin alt-coin creation tutorials above version 0.15.0?

There are many How to make an alt-coin tutorials out there, but all the ones I have seen are from 2015 or earlier (most are around 2013-2014). Bitcoin has changed dramatically since then, and I am ...
0
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0answers
65 views

minimum necessary changes to create bitcoin fork- difference between bitcoin and dogecoin

So I'm trying to figure out what are the absolute minimum number of changes one has to make to create an altcoin fork of Bitcoin, towards this end I've created a diff of the current Bitcoin core ...
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0answers
23 views

Unable to refill keypool (Error refreshing keypool - code -4)

I am unable to get wallet account addresses as the keypool seems to be always empty and I cannot refill it: $ bitcoin-cli getaccountaddress myuser error code: -12 error message: Error: Keypool ran ...