Saturday, July 13, 2019

Blockchain-Based Scalable and Tamper-Evident Solution for Registering Energy Data.

Here's another great use of blockchain technology, which creates secure data that is highly resistant to human tampering and error.

Blockchain-Based Scalable and Tamper-Evident Solution for Registering Energy Data.:

Blockchain-Based Scalable and Tamper-Evident Solution for Registering Energy Data.

Sensors (Basel). 2019 Jul 10;19(14):

Authors: Pop C, Antal M, Cioara T, Anghel I, Sera D, Salomie I, Raveduto G, Ziu D, Croce V, Bertoncini M


Nowadays, it has been recognized that blockchain can provide the technological infrastructure for developing decentralized, secure, and reliable smart energy grid management systems. However, an open issue that slows the adoption of blockchain technology in the energy sector is the low scalability and high processing overhead when dealing with the real-time energy data collected by smart energy meters. Thus, in this paper, we propose a scalable second tier solution which combines the blockchain ledger with distributed queuing systems and NoSQL (Not Only SQL database) databases to allow the registration of energy transactions less frequently on the chain without losing the tamper-evident benefits brought by the blockchain technology. At the same time, we propose a technique for tamper-evident registration of smart meters' energy data and associated energy transactions using digital fingerprinting which allows the energy transaction to be linked hashed-back on-chain, while the sensors data is stored off-chain. A prototype was implemented using Ethereum and smart contracts for the on-chain components while for the off-chain components we used Cassandra database and RabbitMQ messaging broker. The prototype proved to be effective in managing a settlement of energy imbalances use-case and during the evaluation conducted in simulated environment shows promising results in terms of scalability, throughput, and tampering of energy data sampled by smart energy meters.

PMID: 31295826 [PubMed - in process]

Wednesday, January 16, 2019

Calibrate Blockchain 2019

Do you want to know more about what is going on in the Blockchain and cryptocurrency world? Then you must join in the conversation at #calibrate2019 If you can't be there in person you can still register for a virtual pass. Use the code HESTON50 for a discount.  January 24 and 25. If you just missed it still email us at BackyardBitcoin [at] to get info how to access the video from the conference. But really you won't want to miss this one!  Follow us on twitter @backyardbitcoin using the hashtag #calibrate2019 for live tweets from the event.


This is the first blockchain event in the Inland Northwest, and the first opportunity for Inland Empire investors, innovators, and entrepreneurs to learn about emerging technology and how the blockchain’s innovations can impact them. You’ll have the opportunity to learn about cryptocurrency and see top executives from blockchain and crypto companies present.


Meet with fund managers, company creators and company executives to discuss the cryptocurrency space, implications of the blockchain, investment strategies, and make deals. This is an excellent learning opportunity from world-class speakers at a premier event and will help shape your understanding of the market and investment fundamentals.


Executives, Managers, Developers and Project Leaders have the opportunity to meet with pioneers in the blockchain space, identify the technologies that make sense, and execute their project visions using emergent, cutting edge innovation. Connections made at this event will build long term relationships for the blockchain revolution underway.

Friday, June 8, 2018

New Way to use your Bitcoin: Buy Fine Art

If you have some spare Bitcoin or Ethereum lying around and you are tired of Hodling you could pick up some nice pieces of art by Andy Warhol.

On June 20 in London Dadiani Syndicate and in partnership with blockchain platform Maecenas Fine Art will be hosting an auction of this famous artist's work.


Maecenas Fine Art is doing some very interesting things in the Blockchain space. Read more from Marcela Garcia Casil HERE explaining how A-R-T and the Blockchain world work together.

This use of Bitcoin and the Blockchain is definitely going to impact the art world and I kind of think Andy Warhol would have loved it - or he would have hated it - one or the other. Either way he would have created some wild art based on this technology.

Saturday, May 26, 2018

Why so many cryptocurrencies?

If you are new to the world of cryptocurrency you have most likely heard about Bitcoin but that is only the beginning of the conversation. This list of cryptocurrencies is growing. But why? How many cryptocurrencies do we need?

It is a fascinating time to be watching the development of cryptocurrencies because there is so much development happening right now.

Here are a couple good resources to find out about all these coins: ranks all of the cryptocurrencies (at the time of this post there were 1810 ranked). The great thing about this site is the navigation. It is easy to click on any individual coin for more information including links to each individual website for more information. So if I am looking for information on any particular coin I start here. put together a list of Top 50 Cryptocurrencies with just one sentence descriptions of each one. It is an interesting list and a fun way to look at these various coins.

Twitter is a good resource to go to for information on any coin by just using the Twitter search feature. If you aren't sure where to start you can always search #bitcoin or #cryptocurrency and go down the rabbit hole from there.

 But why so many coins?

The answer is almost simple. Each coin represents something different. Bitcoin is of course the grandaddy of all cryptocurrencies and where this all started. (Following the emergence of Bitcoin is how this site got started.) From there other cryptocurrencies were developed each with their unique twist on the theme of digital currency.


The backbone of Bitcoin cryptocurrency is called Blockchain.

The technology that made Bitcoin possible also makes it possible for us to exchange all kinds of information in a way that has never been possible before. It is a longer discussion about what Blockchain is and why it is so important but the important factor to this conversation is that it has allowed for a breakthrough in innovation and solutions to problems we have been trying to solve for decades. 

How do we have accurate voting processes? BLOCKCHAIN
How do we have secure medical records that are owned by the patient / not the healthcare facility / and can be accessible when we need them? BLOCKCHAIN
How do we secure our electrical grid making it safe from hacking while also opening up opportunities for individuals to participate in energy conservation projects? BLOCKCHAIN
How do we ensure accurate ownership / title of land to people around the world? BLOCKCHAIN
How do we ensure that the food we are purchasing is actually organic and locally sourced? BLOCKCHAIN
How do we improve gun safety without adding more ineffective gun laws? BLOCKCHAIN

There are a so many activities that can be tracked and managed via Blockchain technology. Right now all around the world there are amazing teams of people coming up with solutions to problems that have been out of reach in the past in part because the cost and logistics were too impractical.

Each one of these new solutions or platforms has a Token that is used to exchange value and verify the information being tracked.

We have to think of "Coins" in a new way. Many of the "coins" on the world coin index are actually "Tokens". These Tokens represent some transaction of value but may not have anything to do with money.

There is a difference between cryptocurrency and these Blockchain Tokens / Coins. Throughout the next few months we will break these down one by one as we feature some of the most interesting Tokens and Blockchain solutions.

In the meantime, we will continue to support the use of Bitcoin as a currency to be used in our local shops.

We would love to hear your questions about Bitcoin / Blockchain / Tokens / Cryptocurrency  / ETC. Join the conversation over on

Sunday, January 21, 2018

Back to the Basics: Where can I spend my Bitcoin

In the beginning there was Bitcoin. And then came the question: Where can I spend my Bitcoin? The first answer to this question came in the answer of a pizza. It was a little bit of a round about purchase as someone in England accepted the bitcoin from someone in Florida USA and then ordered a pizza for them using regular cash.

We have come a long way since then. But as one person online noted the various places that offer items for sale using Bitcoin still list the items for sale in US dollars. They argue that Bitcoin will never be a valid form of currency until items for sale are listed in absolute Bitcoin value instead of absolute US dollars with the option to use Bitcoin.

Here at Backyard Bitcoin we are happy to have items listed in US dollars with the option to use Bitcoin as the means to finalize a purchase. That works just fine for us.

So in the meantime here is an article from listing 13 places to use your Bitcoin for purchases. We can confirm four of them.

LIFEWIRE 13 Major Retailers and Services that Accept Bitcoin

One that was not mentioned on this list that we have found interesting is Craigslist. In a recent search for cars on the popular Craigslist site there was an option in the filters list to search by those sellers that accept cryptocurrency. We have not tested this out but find it to be an exciting development.

Where are you spending your Bitcoin? Let us know