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How to Serve Up Web Content from Ethereum – Part 4 – Ethereum Mining on TestNet

By |July 21st, 2017|

This tutorial is part of a series of blog posts on getting a web page on your web server to communicate via web3 with your Ethereum test network on localhost.

In our previous post, we created the first block in our testnet using a CustomGenesis.json. In the CustomGenesis.json, we set the difficulty attribute to a very low […]

How to Serve Up Web Content from Ethereum – Part 3 – Setting Up Your Own Private Testnet with a Genesis Block

By |July 20th, 2017|

This tutorial is part of a series of blog posts on getting a web page on your web server to communicate via web3 with your Ethereum test network on localhost.

In our previous post, we installed Geth on Mac OS X. When Geth is initially started on a Mac, Geth will start to synch with the production blockchain. […]

How to Serve Up Web Content from Ethereum – Part 2 – Download Geth on Mac OS X

By |July 13th, 2017|

This tutorial is part of a series of blog posts on getting a web page on your web server to communicate via web3 with your Ethereum on localhost.

In our previous post, we installed the Ethereum Wallet. The Ethereum Wallet is a nice way to visualize what’s going on with Ethereum, but for our purposes initially we don’t […]

How to Serve Up Web Content from Ethereum – Part 1 – Install Ethereum Wallet

By |July 13th, 2017|

This tutorial is part of a series of blog posts on getting a web page on your web server to communicate via web3 with your Ethereum Wallet on localhost.

In the process of trying to build a simple distributed app, Dapp, I encountered a ton of examples that do not work.

The first step in most of the examples that […]

Setting up your Ethereum Eth Environment on a Mac OS X

By |June 27th, 2017|

Setting up your Ethereum Eth Development Environment on a Mac OS X
Firstly, to install Ethereum Eth download the latest stable binary of cpp-ethereum, and install on your chosen operating system.

I’m running on Mac so I’ll install via Homebrew
brew update
brew upgrade
brew tap ethereum/ethereum
brew install cpp-ethereum

In the installation of cpp-ethereum, I ran into a compilation error

[…]

“How Do I Raise Investment?” Advice for Healthcare Startups

By |June 16th, 2017|

Hi Healthcare Startup Innovators!
We are scheduling our next Meetup for June 22nd in Arent Fox LLP, Downtown SF. The evening will kick-off at 6pm with snacks […]

Migrate PostgreSQL AWS Database Instances Quickly

By |April 15th, 2017|

Learn how to migrate PostgreSQL AWS database instances like an expert.

We had the need to migrate a Postgres AWS database from a Production to Staging EC2 yesterday, so we decided to write it up for posterity.

Navigate out to the production instance via ssh. I will typically write a shell script that executes the following command. You […]

Building a Successful Digital Health Apps, Part 1: Security

By |February 22nd, 2017|

In recent years, there has been an explosion of Digital Healthcare Startups launching a vast array of both hardware and software into the health and wellness market. These companies offer everything from simple consumer-focused monitoring devices and apps such as Fitbit, to complex interactive health management apps aimed at both Clinicians and patients with Chronic […]

Preview 2017: Top Programming Languages

By |January 31st, 2017|

Preview 2017: Top Programming Languages
Whether you are a seasoned Developer or new to the game, you will be aware of the many programming languages available to you as you start work on a new web or mobile app. Sometimes the decision about which language to use is straightforward, but other times you may have a variety […]

Top Web & Mobile App Design Trends 2017

By |January 10th, 2017|

App Design Trends for 2017
The field of digital design is developing at breakneck speed with terms such as User Experience Design (UX), User Interface Design (UI) and Interaction Design (IxD) becoming increasingly common. These fields of study and are getting better and better at finding the ‘sweet spot’ between technological capacity and human behaviour to […]