Now Trending: Are the RX570 and RX580 ... AntMiner S9 Review Updat... Genesis Mining Added Mon... Best BIOS ROM for Sapphi...Is Verium the New Best AltCoin to Mine?Updated Review | | Altcoin, CPU Mining, How to, Reviews, VeriCoin, Verium | Copyright © 2017 1st Mining Rig.Solar Powered Node connected to ROKAS OS on Raspberry Pi 2 – Completed Project has begun at Solcrypto in February 2016.Funded by Sunpulse K.K./Solcrypto Scope of Work: The small DC datalogger connects to a small Solar Home System (SHS), which are prevalent in developing countries, and records the kWh produced.This is then sent as PHP script to the Solcrypto login platform.Then the kWh is associated with a user account, this information is then collated and sent to the SolarCoin Foundation API in batches to claim the SolarCoin for the users.Skill level: Blockchain/Dev (low), Solar (medium), Monitoring Hardware (High but led by Solcrypto expertise).Goals: We need more SolarCoin nodes globally that are easy to setup.

This problem is solved with ROKAS.These people have written a wallet OS system that runs on any Raspberry Pi 2.Background: ElectriCChain is a Blockchain As a Service (BAaS) and we are using the SolarCoin blockchain but are actually open and technology agnostic for collaboration and development with other blockchains such as Ethereum, lisk etc.The main aim of ElectriCChain is to build the largest open scientific solar monitoring system by connecting solar monitoring devices (data loggers, inverters, Raspberry Pi nodes) with the SolarCoin blockchain.We are always on the search for talented developers who can help us with this mission.The “new-language-layer” project is also important as it aims to facilitate building a cross- blockchain language for synchronization between blockchains.As JFK said when he gave a speech about sending a man to the moon,  “We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.” JFK and also a good philosophy that some of us like is “There is no success, no failure, only make.

Keep making.” Unknown Estimated Budget: Undisclosed or SolarCoin Equivalent plus 120 hours testing and debugging work.Currently we have burnt through 2BTC and 15 hours of engineer time.End Dream: Decentralized where small remote solar powered communities are self-funded by the sun.They can then generate supplemental income in SolarCoin and trade this for other goods and services.bitcoin china wiredSmart contracts for insurance, micro-financing and micro-banking Dapps could also be built for these currently estimated 1 billion people.fedora 20 bitcoin clientTimeline: Before June 2016 target – Project completed Luke (Project Co-ordinator and co-originator) Corather (SolarCoin community) (Project idea and co-originator) Scalextrix (SolarCoin community) (Project idea and co-originator) Solar Owners interested in using the technology and being granted SolarCoins to the SolarCoin Blockchain on a live basis, hence contributing as a Node to the SolarCoin Network can do so with the following Instruction Manual and connect their Pi3: Current research is now being done over other inverter manufacturers and with pruning the Blockchain for Pi0 (5USD piece of equipment) application.cia invented bitcoin

Electrum is one of the oldest and remains a favorite light client for Bitcoin.It works with a network of servers that feed the clients with block data.But with the growth of the Blockchain, starting a new server has become nearly impossible, so that the creation of new servers has ultimately come to a halt; until Neil Booth’s ElectrumX fastened the synchronization by around a factor of 100.bitcoin how to become a minerWe talked with Neil about Electrum, the disadvantages of light clients and his project.ethereum gift cardsI live and work in Tokyo, where I have lived for over 17 years now.bitcoin mining usb driveI worked in the financial industry for about 20 years until early 2014, when I decided I'd had enough, took a break of 18 months, and joined a Japanese software company writing financial software.

I've been passionate about Bitcoin since I first heard of it several years ago.The idea is like all light-weight clients that you should just be able to install and get started with Bitcoin immediately without having to run a heavy server or download a large and ever growing blockchain.I believe Electrum was one of the first, if not the first, to pioneer HD (hierarchical deterministic) wallets, where you only need to store a seed securely, usually expressed as a mnemonic of 12 or more words, to regenerate your whole wallet history.No other backups are ever needed.Your seed is stored encrypted and not held in memory for longer than necessary.By way of contrast, for many years bitcoind wallets were stored unencrypted on your hard drive and required constant backing up because the private keys in the wallet were unrelated and continuously refreshed as transactions happened.This led to many steep losses for early users of that software.Electrum is also very flexible if you are a power user who knows how bitcoin works.

For example, it has good coin control, which is important to preserve your privacy from third parties watching and analyzing blockchain transactions.I am not aware of other lightweight wallets that offer such a feature, but I am not familiar with all wallets.Electrum also supports a range of hardware wallets and has other features available as plugins.For the convenience of using a lightweight wallet, you necessarily sacrifice something.With all lightweight wallets you sacrifice privacy: for the wallet to get the information it needs to show the user’s transactions and balance, without processing the whole blockchain itself, it must rely on a server or service to index the blockchain and provide that information to it.For the Electrum server to provide the information, the client software necessarily needs to provide the server with all its user’s addresses, so that the server can notify the client when it receives money or give it the address history.An unscrupulous server operator could collect information about IP addresses and requests made to the server, and, making various assumptions that may or may not be valid, correlate addresses and wallets over time to build profiles of users.

Although I'm not aware of anyone doing this at present, for anyone with basic software knowledge it is easy to do.So if you value your privacy yet like to enjoy the convenience of an instant-on HD wallet with hardware wallet support, then running an Electrum server yourself becomes an attractive proposition.If you connect to your server, you know that nobody spies you.And of course, the more people that run Electrum servers, the more users we can support without overloading the existing servers.DragonFlyBSD is an excellent operating system that forked from FreeBSD.It is mainly designed and developed by Matthew Dillon who is an incredibly talented individual, and very modest to boot.Why did I fail to run a server?Unfortunately, the original Electrum server software was very resource intensive.What it does is that it indexes the blockchain in a special kind so that it can deliver information to the clients.This indexing needed a lot of resources, both in time, disk space and memory consumption.

No one knows for sure how much time it takes today because I could not find anyone who has indexed an Electrum server from scratch for over a year.As the blockchain has grown to more than 100 GB, it takes so long no one will do it.An educated guess from volunteers letting it run for a while is that with recent good hardware it would take around one month.With ElectrumX I would say that syncing an Electrum server is not more work than syncing a bitcoin node.I wrote the server software in Python3 instead of Python2 and made several improvements and changes in the structure of the blockchain indexer.The result is that syncing the server from the Genesis Block is around 100 times faster.It needs probably around eight hours.And I am still finding ways to improve the sync times.I hope to encourage as many people as possible to feel easily able to run their server without high-end machines.One enthusiast has ElectrumX running on a Raspberry Pi serving several hundred sessions at a time.I guesstimate that the Pi running current ElectrumX software could just about keep up with the network if blocks averaged 3MB each; I have some ideas I think could raise that to about 8MB.