Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [altcoin-development]

The tag has no usage guidance.

0
votes
1answer
201 views

How to start Proof-of-stake phase after pre-mining the coin in Proof-of-work phase?

I am learning to develop a new cryptocurrency on my own, for the same i decided to develop a Proof-Of-Stake coin, I forked the Okcash for this purpose. And was able to change the coin according to my ...
0
votes
1answer
326 views

Understanding the iquidus API settings

I am trying to understand what values I am being asked for in the settings.json to install the block explorer for Iquidus. I know how to get the genesis block as I have hard coded it when I did a fork ...
0
votes
3answers
681 views

How can I mine the first block of my custom litecoin fork?

I'm on the newest version of Litecoin, and I modified it for a little project, but now I'm stuck at "Connecting to peers" with 0 blocks known. The command "setgenerate" has been removed, and I cannot ...
0
votes
2answers
272 views

How to create a simple lightweight wallet (without mining) for an Altcoin

I am trying to create a wallet using electrum for an altcoin that uses the Scrypt algorithm. I am looking around for tutorials that can show a step by step process on how to create a simple wallet for ...
1
vote
1answer
268 views

Altcoin - genesis block - TypeError: __init__() takes exactly 2 arguments (3 given)

I'm trying to use the genesis script from innova to generate a genesis block of Xevan_hash https://github.com/innovacoin/GenesisH0/blob/master/genesis.py I'm using these parameters: python genesis....
3
votes
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
53 views

Reset or backup from a blockchain possible? [closed]

i have a coin for my own interests. With this i will learn how works all. So i have install the daemon on a vps All works fine. Mining works. And the first 300 blocks i have created. Now i will ...
1
vote
1answer
286 views

How can I simulate ProofOfStake (PoS) for a testnet (clone of Pivx)?

After the end of PoW blocks, I am unable to mine using PoS. Here is my setup. 1) Server with the following config file. server=1 daemon=1 listen=1 rpcuser=user rpcpassword=password 2) Two clients ...
1
vote
1answer
415 views

Premine coins from genesis block are gone after one transaction from account/wallet

Please check the whole question once before giving negative marking or Mark as duplicate of Why can’t the genesis block coinbase be spent? Why I cannot get transaction from genesis block [duplicate]...
-1
votes
2answers
375 views

How to mine your own Bitcoin fork?

I have my own Bitcoin fork. I have the src and I have the Linux, Mac and Windows clients. The Windows client is using Bitcoin Core for the wallet. How do I go about mining the fork I created? I have ...
-1
votes
1answer
36 views

Adding C library to Makefile

I am developing an altcoin using a new PoW algorithm which is written in C to test the algorithm. I get compilation errors related to compiling the C code when trying to compile. How can I properly ...
0
votes
1answer
273 views

How mine cloned altcoin new algorithm?

Hi there i will created new clone for practice. Changed algo at cloned one For example nist5 to skein. I created genensis block. Created daemon and qt and nodes are connected. Everything is well to ...
1
vote
1answer
358 views

Remove Orphan blocks from “personal” blockchain

Alright, so I've been trying to learn a little more about the blockchain and blockchain-development lately. For every other altcoin, I've noticed that there's such a thing as a bootstrap.dat-file ...
1
vote
1answer
2k views

How to create a new POS altcoin?

I am looking to download a POS (Proof Of Stake) files to create my new altcoin, but all the instructions I found online is for the POW (Proof Of Work) and without any instructions for the blockchain. ...
1
vote
2answers
1k views

Tezos vs Decred

What are the main differences between Decred and Tezos ? Both integrate a governance mechanism so they don't seem very different to me.
0
votes
1answer
4k views

Build a wallet for Android and iOS for a self-made cryptocurrency

I've built a cryptocurrency of my own using this video guide. I did the first 4 steps out of 6, as the 5th level is about building a wallet for Windows platform. I have started creating this ...
-1
votes
1answer
368 views

ERROR: AcceptBlock: high-hash, proof of work failed (code 16)

I followed this medium link to create a coin just like bitcoin . https://medium.com/@jordan.baczuk/how-to-fork-bitcoin-c39139506443 Based on this tutorial i update DEFAULT_MAX_TIP_AGE to int64_t ...
3
votes
1answer
447 views

Is Bitcoin network an Asynchronous network or a synchronous network?

Conventional BFT protocols work on weak timing assumptions, and if a faulty primary does not respond or forward a client's request a view change message is initiated by the backup nodes. Therefore, if ...
-1
votes
1answer
185 views

How to go PoS once PoW ends?

I cloned a test coin from another altcoin for learning purpose. This had lastPoWBlock as 400 and i was able to premine using cpu miner but my chain stops at 400 blocks. It should be a PoS after 400 ...
1
vote
3answers
2k views

Mining new litecoin based altcoin. Internal Server Error 500

I apologise if I put this question in wrong place. I created new altcoin based on litecoin source code. All looks ok, wallet and wallet-qt are compiled and running. However when I trying to mine ...
1
vote
1answer
104 views

No .altcoin directory being generated

I am trying to create a genesis block for a personal play coin. I get the correct output of assertion failed. However when compiling I noticed the ./altcoin folder is not created at all.
3
votes
1answer
3k views

Problem In Creating Genesis Block Twister-Core using Ubuntu and (Qt Creator IDE)

I am trying to create a genesis block in twister-core using Ubuntu and IDE Qt Creator. I have compiled the twister-core successfully, I have changed the these parameters for creating the genesis block ...
1
vote
1answer
68 views

Blockchain gets stucked if no blocks are mined

Yesterday I decided to fork a project, just for fun and to learn more about it. So, I forked a project, I generated my own genesis block, changed timestamps, nounce, keys, reset the min chain work. ...
3
votes
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?
1
vote
1answer
893 views

New altcoin. Cpuminer gives me “booo”

I made a new altcoin based on "INSaNe" https://github.com/CryptoCoderz/INSN I changed genesis hashes using this code: if (true && (genesis.GetHash() != hashGenesisBlock)) { ...
0
votes
0answers
316 views

How to mine a masternode altcoin fork without “setgenerate”-feature in wallet?

I´m doing some educational altcoin development (for fun, NOT for money) and I have a similar problem like the guy in this thread: New altcoin. Cpuminer gives me "booo" I forked this coin: ...
0
votes
1answer
78 views

Unwanted peers connecting to Altcoin

I am building an altcoin using the litecoin source code. I have removed all of the Emplace Seed calls in chainparams.cpp for DNS seeding, changed my default node communication port to port 421 and ...
0
votes
2answers
220 views

Determining the genesis transaction value or genesis_tx

Is there a way to determine the genesis transaction (genesis_tx) hash? I know the genesis block number but how do you determine genesis_tx? I am looking for this hash for an altcoin which was forked ...
0
votes
1answer
188 views

Need Help with Gitian-Builder - Missing Signer Error

I'm having a hard time finishing this project. I'm very frustrated and I really need your help. I'm trying to create the QT wallet for Windows & Linux. I have already cloned a masternode and I'...
0
votes
1answer
97 views

Altcoin: Send/receive transactions between nodes have high failure rate

I've noticed that an unusually high number of my attempted send transactions between my nodes (which is currently only 6 at most, but never less than 4) will not broadcast regardless of the amount of ...
-1
votes
2answers
546 views

hash dosent match nbits

Im trying to clone a coin and I created a genesis block but when I run the wallet, it dosent start.. When I go to the log file, I see this error and I honestly dont know how to solve the problem. How ...
1
vote
0answers
37 views

How can a miner know how many blocks mined by him?

I am working on an altcoin based on bitcoin-core, version 0.12.1 (this version including setgenerate). Is their an option for a miner to know (using bitcoin-cli) how many blocks mined by him (after ...
2
votes
1answer
409 views

Why cant my Altcoin Regnet create first 100 blocks?

I have modified bitcoin source code for my altcoin. I have successfully created genesis block, merkel root, noonce and daemon is working well. I have tweaked number of coins per day, total coins etc.. ...
1
vote
1answer
340 views

Solo mining on created altcoin: not able to create block

I have forked the code of an altcoin to play with the param and understand the process Source here. Now I want to solo mine to create the blocks. The miner is on my PC and the server on a Ubuntu 16....
0
votes
1answer
218 views

QT-Wallet not sync properly for altcoin

I tried to create altcoin using litecoin source code. I am able to generate genesis block for same. After setup on ubuntu VPS qt wallet connect to server and disconnect within seconds. Please help me ...
0
votes
1answer
382 views

Fork Dash - New coin problems

Currently I am doing my final year project by forking the Dash code and generate a new coin from that. I had read lots of tutorial online and follow the steps as well. First, I had generate the ...
1
vote
0answers
165 views

Failed to Build Bitcoin-Qt

The error relate to UPnP as show below. Please kindly help solve the issue. Thank you! C:\Coin>mingw32-make -f Makefile.Release c:\Qt\4.8.6\bin\rcc.exe -name bitcoin src\qt\bitcoin.qrc -o ...
0
votes
0answers
129 views

Base58 mismatch error

I am trying to run some tests on my altcoin, it says base58 mismatch. What is this error? $ ./src/test/test_altcoin Running 262 test cases... test/base58_tests.cpp:164: error: in "base58_tests/...
0
votes
0answers
85 views

LitecoinJ fork to altcoinJ Could not resolve dependencies

I am trying to fork litecoinJ for an altcoin because they are both using a similar algorithm (scrypt) using Ubuntu 16.04. This is so I may build and android wallet for it. To build the project, I use ...
0
votes
1answer
1k views

How to enable mining on daemon?

I forked bitocin and created a altcoin. Now I am running a node of it. There are currently 0 blocks because there are no miners. How can I enable mining on bitcoind? I tried adding gen=1 with config,...
1
vote
1answer
304 views

how to insert new checkpoints in a bitcoin clone

I know Checkpoints are old blocks hardcoded into the source: What are checkpoints? {11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")}, {33333, uint256S("...
2
votes
1answer
923 views

Why doesn't changing MAX_MONEY change the maximum number of coins?

I've changed MAX_MONEY to decrease the number of coins issued in my altcoin, but it's not working. Why?
0
votes
2answers
399 views

Segmentation fault when loading checkpoints - altcoin dev

I was trying to clone the bitcoin's source code and run a completely new blockchain. I was successful in changing the initial parameters such as pszTimestamp nTime nNounce Generated a genesis block ...
3
votes
2answers
5k views

How to setup seed node?

I have compiled and build my own coin using cryptonote fork. After that i have printed genesis block. Then I pasted this genesis block hash and rebuild the binaries. But, my question is:- What to do ...
0
votes
1answer
123 views

cloning bitcoin MAX_MONEY not working [duplicate]

I have changed the amount of coins to be mined, to be 1000 but looks did not work, I have already 8000 coins mined, can someone explain why it is not working? main.h static const int64 MAX_MONEY = ...
15
votes
2answers
9k views

What's a Sybil attack?

Can anyone please provide a clear definition for what a Sybil attack is? I was asked how the cryptocurrency I am developing would prevent Sybil attacks.
0
votes
1answer
75 views

cloning bitcoin how bitcoin find new nodes

I am studying blockchain, cpp and crypto so I cloned bitcoin and created a new altcoin. everything it is working fine as I expected, but i have some questions which i could not find a answer. the ...
0
votes
1answer
1k views

Iquidus JSON settings for Blockchain Explorer

I did a fork from litecoin into my own altcoin and I am trying to get it on a blockchain explorer to run realtime on a website. I chose an open source blockchain explorer called Iquidus which was ...
0
votes
1answer
311 views

How to set up a private chain/local testnet : reverse engineering the blockchain code

Long story short, I want to set up a private chain/a testnet blockchain that can run locally just to fiddle and play with it just to learn how it works. So I have a general understanding of how things ...
5
votes
3answers
2k views

What are the pros and cons of premined altcoins?

When starting an altcoin from scratch, how would distributing premined coins to a certain community affect the currency?