Tag Archives: blockchain

Is Blockchain a Database?

is blockchain a database

This video represents a comparison/difference between Blockchain and a traditional database form. Some of the following aspects of Blockchain is highlighted in the comparison: Blockchain copy maintained by the different member organizations Decentralized ownership Data immutability Consensus algorithm Transaction anonymity Users anonymity

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Blockchain – Opportunities & Risks for Financial Institutions

blockchain lessons for MBA students

Here is a good white paper/research report published by European Banking Authority (EBA) detailing out the opportunities and risks associated with the adoption of Blockchain in relation to financial institutions. Report on risks and opportunities arising for financial institutions due to FinTech Use cases related to some of the following are described: Usage of distributed ledger technology (DLT) and smart contracts for trade finance Use of DLT to streamline customer due diligence (CDD) processes In this use case, the “digital identity” concept is explored and described.  

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Blockchain – How to Store Documents or Files

Store Documents or Files in Blockchain Network

This post represents best practices in relation to storing documents or files in the Blockchain. The need to determine best practices arises from the fact that business between two or more parties ends up exchanging documents consisting of data related to the agreement, business details etc. One often questions whether one store’s document or file in the blockchain or the hash of the document/file in the Blockchain. Store documents in Blockchain – Best Practice/Recommendation As a best practice, it is not recommended to store the document (PDF format or otherwise) or file in the Blockchain. Different blockchain frameworks limit the size of the block which can be added to the blockchain. Although in blockchain network …

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Bitcoin Blockchain – What is Proof of Work?

Proof of Work in Bitcoin Blockchain

In this post, you will learn about what is proof of work in a Bitcoin Blockchain.  Simply speaking, the proof of work in computing is used to validate whether the user has put enough effort (such as computing power) or done some work for solving a mathematical problem of a given complexity, before sending the request. For example, Go to any online SHA 256 calculator tool and try using a random number with the text “Hello World” as shown in the below screenshot. If the difficulty target is set as the hash value starting with one zero, you could see that the random number 10 results in hash value starting with zero. The number 10 …

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Is Blockchain a Linked List like Data Structure?

Blockchain represented as Linked List Data Structure

In this post, you will learn about similarity and differences between linked list and Blockchain. The most trivial way to understand What is Blockchain is to visualize Blockchain as a crude form of the Linked List data structure that we read in one of our engineering classes. Simply speaking, a Blockchain can be defined as a linked list of a group of transactions (block) which is connected with each other using hash pointers rather than pointers as in the case of the linked list. The following diagram represents the Linked List data structure: The following diagram represents the Blockchain. Note some of the following characteristics of a block: Each block …

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Learning Blockchain – Free Online Courses & Training – 1

learning blockchain technology

This is the first blog representing a series of posts on enabling you to learn Blockchain online. Such posts would also represent some interesting projects for you to learn the different aspects of Blockchain implementation. This post is aimed to represent some links in relation to learning Blockchain concepts vis-a-vis free online courses, training. (Learning) Center for Blockchain Research (CBR) by Stanford: The following are free textbook and Coursera course on Cryptography: Free online Cryptography course on Coursera Free online textbook on applied cryptography (Case Study) Distributed Contracting Blockchain Network by Microsoft & EY: The diagram below demonstrates the following different aspects of blockchain: Permissioned blockchain registering entertainment, gaming industry …

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Kerala to lead Blockchain Training in India

kerala blockchain training India

Kerala becomes the first Indian state to set up a goal of providing Blockchain training creating to IT community stakeholders (primarily students) and create 25000 Blockchain professionals in 3 years time frame. They have designed a program called ABCD (Accelerated Blockchain Competency Development) Programme which comprise of courses such as following: Foundation training programme aimed to provide training in skills such as HTML, MEAN stack, GoLang etc. This programme comprises of 82 Hrs of classroom training and around 42 Hrs on self-learning activities (total of 124 hrs over a period of 6 months for students, 1 month for graduates and 6 weeks for working professionals). The course fee is Rs. …

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Blockchain & Smart Contract for Quick Insurance Payouts?

insurance payouts and blockchain

In this post, you will learn about how Blockchain and Smart Contracts could benefit Insurance Claims Payout processes resulting in faster and smoother payouts. Blockchain is already having a positive impact on insurers and reinsurers by removing frictional costs by reducing the need for manual data inputting and multiple checks and data accounting between parties. Why delay in Insurance Claim Payouts? One of the painful aspects of insurance claims is delayed payouts. There are several reasons including some of the following which results in delayed claim processing and hence, delayed payouts: Type of insurance product/program: Different types of insurances result in the different duration of payouts on an average. Structure of the insurance program Level of cover …

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Lessons on Blockchain & Cryptocurrency for MBA Students

blockchain lessons for MBA students

Given that both, financial and non-financial businesses are trying to figure out how they could use Blockchain to impact their business in a positive manner, it is becoming imperative for MBA students to learn the basics of Blockchain & related technologies. The following are some of the topics which could be included in the course-curriculum for MBA courses related to Blockchain and cryptocurrency. Blockchain fundamentals Distributed ledger technology (DLT) Types of Blockchains (public, private/permissioned) Terminologies such as a unit of value, transaction, a block of transaction Consensus algorithms Authentication mechanisms for permissioned blockchain Blockchain platforms such as Ethereum, Hyperledger, Corda, EOS, Multichain etc. Smart Contracts Cryptocurrency – Bitcoin, Ether & Others Hard forks such as Bitcoin Cash Cryptocurrency exchanges Initial …

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Why create Performance Appraisal System on Blockchain?


In this post, I would discuss the need for creating a performance appraisal system by making use of Blockchain, Smart Contracts, and Cryptocurrency such as PATB (PAT on the Back) Coin. This article is in continuation to the article I posted on LinkedIn with the title as A Decentralized Performance Appraisal System using Blockchain & Smart Contracts? Performance Appraisal –  Need for Greater Trust, Transparency, and Rewarding Experience In age-old performance appraisal review system, the performance review is done by a couple of guys including the immediate manager/team leads and the reviewer. While some managers (and/or team leads) maintain the record of the all-round contribution of the employee throughout the year, most of …

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InsurWave Blockchain Platform – Technology & Other Details

insurwave blockchain platform used by Maersk

Insurwave is claimed to be world’s first marine insurance blockchain platform launched as a result of a joint venture by Ernst & Young (EY), GuardTime and insurance industry participants. This looks to be a permissioned blockchain platform requiring the member organizations (maritime companies, brokers, insurers, and reinsurers) to be authorized prior to becoming part of the Blockchain consortium. InsurWave Blockchain Platform is used to? The blockchain platform is used to achieve some of the following objectives: Store data related to assets Store data about identities, risk, and exposures Associate date to smart contracts Connects assets, transactions, and payments Integrate this information with insurance contracts. What’s the technology behind InsurWave? The following are some of the key aspects of the technology used …

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Blockchain & Cryptocurrency – Key Concepts to Know

blockchain concepts

The following are some of the most popular Blockchain and Cryptocurrency jargons or terminologies or concepts that are good to know when you are delving into technology landscape of Blockchain. Blockchain (What is Blockchain Technology?) Genesis block: The first block of a blockchain. Merkel’s tree algorithm: It is fundamental to blockchain technology. Simply speaking, a Merkle tree summarizes all the transactions in a block by producing a digital fingerprint of the entire set of transactions, thereby enabling a user to verify whether or not a transaction is included in a block. Cryptocurrency Cryptocurrency exchanges: These are businesses which allow users to trade cryptocurrencies for other assets. Distributed ledger: Blockchain is one type of …

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Blockchain – Bitcoin Explorer Relaunched

bitcoin blockchain explorer relaunched

Here is the newly launched portal, https://explorer.bitcoin.com/bch for getting details on Bitcoin (BTC) and Bitcoin Cash (BCH). Front page displays details on latest blocks and transactions. One could easily analyze transactions, blocks, and addresses on both the Bitcoin Cash (BCH) and Bitcoin Core (BTC) chains. All you need to do is select the type of cryptocurrency (BTC or BCH) in the top right vertical menu and you would be able to see the transactions and related details of that specific blockchain. Currently, bitcoin blockchain explorer is supported in five different languages: English Hindi Svenska Chinese Russian Note that Bitcoin cash (BCH) is a cryptocurrency which is used on the Blockchain …

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What Blockchain can do and What it can’t do?

what blockchain can do and can't do

Blockchain is a continuously growing list of records, called blocks, which are linked and secured using cryptography. Each block typically contains a hash pointer as a link to a previous block, a timestamp and transaction data. By design, a blockchain is inherently resistant to modification of the data. Simply speaking, Blockchain helps in decentralizing the ledger or data or database with the help of cryptography. The blockchain is also called as distributed ledger technology. Some of the famous blockchains are Bitcoin blockchain, Ethereum, Bitcoin Cash, Litecoin etc. In this post, you will learn different aspects related to what Blockchain can do and what it can not do. On the lighter …

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Blockchain Architect – A Sample Job Description

blockchain architect job description

Blockchain application development is going mainstream, and hence, would be requiring professionals with different roles and responsibilities including Blockchain architect, Blockchain developer etc. You may want to check out different Blockchain job designations on this page. The following is a list of points which can be made part of job description for Blockchain architect and related designations such as Blockchain platform architect, Blockchain solution architect, Blockchain lead architect etc. Demonstrate good understanding of Blockchain fundamentals, smart contracts, consensus algorithms Good understanding of different types of Blockchain such as public, private/permissioned, public permissioned etc. Good understanding of Blockchain framework such as Hyperledger Fabric, R3 Corda, Ethereum (Solidity) Good understanding of various …

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Cheat sheet – 1500 Cryptocurrency Tokens / Coins & Details – Part 4

cheatsheet cryptocurrency tokens coins

This post lists down some of the following information related to different cryptocurrency coins/tokens. This could be used as a quick reference/cheat sheet to get quick information about any specific cryptocurrency coin. Token name Ticker Symbol used in cryptocurrency exchanges Company’s Website Explorer where details in relation to coins, tokens can be found Source code (Github) Twitter handle   List of 400 Cryptocurrency Tokens / Coins S.No Token Name Explorer Source Code Twitter 1101 Cannation (CNNC) Explorer 1 GitHub 1102 Dogecoin (DOGE) Explorer 1 GitHub @dogecoin 1103 Delphy (DPY) Explorer 1, Explorer 2 GitHub @delphy_org 1104 MicroMoney (AMM) Explorer 1, Explorer 2 GitHub @micromoneyio 1105 AnarchistsPrime (ACP) Explorer 1 GitHub …

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