Ethereum questions and answers

This question is somewhat related to this (https://ethereum.stackexchange.com/questions/3277/how-to-connect-attach-to-a-remote-node) one. Following the suggestion in the comments from this (https://ethereum.stackexchange.com/questions/7497/geth-bug-when-working-with-address-arrays) one, I upgraded geth to v1.4.10 and launched it and launched it on a private net: geth --datadir "data_dir" --mine --minerthreads 3 --networkid 13 --rpcapi eth,web3,personal --rpc --maxpeers 0 which outputs: I0728 ....

I'm looking for a light IFPS library that I can include on the front-end. I only need to save files and retrieve the hash. Using Browserify on https://github.com/ipfs/js-ipfs-api is about 2.2mb, which seems high. https://www.npmjs.com/package/browser-ipfs Looks good but hasn't been updated in two years. ....

I have my dapp in progress using PrivateNet, Metamask, HTML, CSS, JAVASCRIPT & Solidity in Ethereum. After the finishing of my application I just wanted to host my application on cloud. As of now when I searched for the deployment, I didn't get such blockchain environment like Heroku . Can ....

I often see the following figure. That figure explains to me that every contract account has four parameters for computing the global state root. But I can't understand what parameters the externally owned account has for calculating the global state root. I think the user's account should have two parabeters(nonce ....

Please explain complete procedure/journey how transaction in block-chain get validated by miners, From broadcast of transaction to become part of new block. ....

I would like to know who pays the gas when a transaction is refunded by the smart contract. Suppose if a sender sends some amount of money to a smart contract, and it finds out that there is some issue with the transaction and wants to refund the sender. Who ....

Is it possible to get the current price of Ethereum to Dai within a smart contract? Can this be done without a transaction, using a read operation by the nodes on some kind of existing decentralized exchange or the dai contract itself? ....

I am following a truffle tutorial where the individual users web3.eth.accounts to retrieve all the accounts from Ganash. However that seemed depreciated and to duplicate his results I used web3.eth.getAccounts() as you can see below. However a next command is ran in truffle console web3.eth.accounts which presents account at position ....

I know how to instantiate web3 to work with a local test network: var web3Instance = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); How do I change this code to connect to the real network? ....

I'm trying to install pyethapp on Raspberry PI B+ sudo pip install pyethapp getting error Complete output from command python setup.py egg_info: Couldn't find index page for 'pytest-runner' (maybe misspelled?) No local packages or download links found for pytest-runner>2.0,<3 Traceback (most recent call last): File "<string>", line 1, in <module> ....