I am going to work on a project in which we want to build a bitcoin wallet, like for example mycelium, coinbase etc, but I have no knowledge of which apis we sh
use anchor_lang::prelude::*; declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS"); #[program] pub mod myepicproject { use super::*; pub fn start_st
I am not able to get transaction id from AWS managed blockchain using chaincode's stub.getState(key) method. Please suggest..
I am very new to blockchain programming and programming in general. I want to generate my SOL address using the mnemonic seed phrase with the derivation path "m
I am new to truffle and I work on blockchain project so when I "migrate" in truffle develop, this error occurs. Why ? I change the version of my compiler by 4.2
I want to build an NFT that I can paid with an ERC-20 token to mint it. I'm using currently the Mumbai testnet on polygon, and I'm using the Dummy ERC20 token t
I am very new to web3 etc but as far as I know, every account is represented by a public/private key. The public key can be accessed anytime and the private key
I'm trying to learn how to create NFTs on the Ethereum block chain. In terminal (Ubuntu 20.04.3 LTS) Aki-Zeta:~/my-nft$ node scripts/mint-nft.js I keep getting
so yea I tried to get all the transactions of a wallet address on a certain token contract. But it keeps on returning null. const Web3 = require('web3') const
type Product struct { ID string `json:"id"` Name string `json:"name"` Area string `json:"area"` OwnerName string `json:"own
Smart contract execution needs gas fee. So all data can't be stored in blockchain. Images could be stored on ipfs like Pinata. Do I have to develop extra backen
I would like to airdrop sols into a specific account to get my smart contract to fire an anchor test. Whenever I run my test I come across the error Error: Acco
Trying to deploy a program to solana devnet. I was using solana program deploy ./path/xxxx.so -u devnet And I got multiple lines of msg 21AbKBwMcsDR4DciR6Z69X6v
If a smart contract has the compiled bytecode for a contract can the first deploy a subsequent contract? According to Ethereum.org: "To deploy a smart contract,
I am trying to set up a Hyperledger Fabric Network with Hyperledger Explorer. I spin up a VM on the digital ocean cloud with ubuntu OS. From there, I spin up 3
As per the Corda coding guidelines, I have seperated out modules into contracts and workflows-common. There are workflows modules like workflows-party1, workflo
RocksDb: Multiple values per key (c++) what i am trying to do I am trying to adapt my simple blockchain implementation to save the blockchain to the hard drive
In Solana you can get your own balance with the CLI $ spl-token accounts But how do I get the token balance of a foreign account if I have the account ID or hi
I'm using node version 12.20.2 and npm version 6.14.11 and installed truffle with cmd as administrator, the truffle framework version 5.5.12 has been installed
I have installed cardano-wallet using this documentation. Everything is OK, Just I don't know how to run it so I can have interaction with it via node js: const