Adobe InDesign CC – QR Codes
QR codes are square blocks of graphical code that contain embedded information. QR codes are being increasingly used to condense all information into a single image. The QR code can contain…
Blockchain – Payment Verification
Consider a case whereby as a vendor you may like to verify a certain payment made in the past. As the blockchain you are holding on your machine contains only…
Android – Hello World Example
Let us start actual programming with Android Framework. Before you start writing your first example using Android SDK, you have to make sure that you have set-up your Android development…
Blockchain – Merkle Tree
The issue of disk space in a node is easily overcome because all transactions in a block are hashed in a Merkle Tree as shown in image − The block…
Adobe InDesign CC – Image Transparency
Image transparency or if you are an image editor, the alpha channel, is very important to ensure that the image you are inserting into the document blends with it instead…
Blockchain – Incentives to Miners
As we saw in the chapter Bitcoin - Mining, a miner may be flooded with many transactions at any given period of time. The maximum size for a block is…
Blockchain – Network & Mining
I will now summarize the steps described above; this is what happens in the network − Anybody who wants to obtain services from the third party who has advertised on…
Adobe InDesign CC – Image Fitting
Often, the images that we want to place in the document are larger and don’t fit completely in the frame we want. InDesign offers tools to ensure that you are…
HSQLDB – Alter Command
Whenever there is a need to change the name of a table or a field, change the order of fields, change the data type of fields, or any table structure,…
Blockchain – Proof of Work
As all transactions are time stamped, we need to implement a distributed timestamp server on a peer-to-peer network. This requires some additional implementation and that is the Proof-of-Work that I…
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