devised to serve as the nerve-center of bitcoin, blockchain
programming has come a long way. The brainchild of Satoshi Nakamoto
(the pseudonym used for the person or people who developed
bitcoin), the technology has today expanded into something bigger,
accomplished enough to be put to use in a gamut of potential
But before we dig into varied
applications of the blockchain, let’s understand what it exactly
What is blockchain
technology and how does it work?
A blockchain is an advancing chain
of records termed as ‘blocks,’ linked using cryptography. Each block
is constituted of transaction data, a timestamp, and a
cryptographic hash of the previous block. To understand it better,
you may consider it an open, distributed ledger that keeps stock of
transactions between two parties efficiently and in a verifiable
View blockchain as a spreadsheet
cloned numerous times across a network of computers. The concept
envisages a spreadsheet that can be updated on any of these
computers by anyone with access. Understand this, and you have a
basic idea of blockchain programming.
Having a network that can be
reconciled continually has obvious advantages. As the database
isn’t stored in a single location, the records are really public
and easily verifiable. Thanks to the absence of a centralized
version, it’s practically impossible for a hacker to corrupt. Yet,
data is available with ease, as the data is hosted by a legion of
The conventional way of sharing
documents has a demerit – two people cannot work on the same record
simultaneously. Even banks block account access briefly when
executing money balances and transfers. Compare it to Google Docs
that gives access to all parties to the same documents at the same
time. Banking blockchain and other systems work like a shared
Suppose there’re several legal documents that various parties
are working on. Passing them to each other after every modification
will make keeping track of version even harder. Blockchain
programming provides a solution by providing simultaneous access to
everyone involved, thus seamlessly streamlining the workflow.
Companies are taking additional steps to ensure robustness,
security, and auditability in their code when writing blockchain
protocols. Cardano Foundation, a
Switzerland-based blockchain and cryptocurrency organization,
worked with FP
Complete to have an independent audit of Cardano blockchain
protocol. The objective of this collaboration is to standardize,
protect and promote the Cardano Protocol technology.
Several programming languages are used in the making of
blockchain – Haskell, C++, Java, Python, Ruby, and more. Haskell is
considered the hottest language these days for building blockchain
applications. Designed for safety, Haskell provides for mandatory
automated checks, ensuring the elimination of certain kind of
mistakes in the code. You get an entire programming toolchain that
enables you to create easy-to-maintain and safe code.
Prominent features of Haskell
include memory safety, ease of understanding code, and absence of
unwanted side-effects. The language facilitates code creation that
is explicit and covers all corner cases.
FP Complete is the world's top supplier of commercial-grade
tools and engineering for Haskell.
Blockchain and Cybersecurity
Blockchain technology has two prominent features –
- absence of control by any single entity
- no single point of failure
These features provide it with a built-in robustness regarding
cybersecurity. Like a self-auditing ecosystem, the network stays in
a state of consensus, automatically checking in with itself after a
set interval, thus making it impossible for anyone to sneak in.
Companies have embarked on innovative measures to enhance
cybersecurity. Here's some of these:
Keyless signature infrastructure
Blockchains are used to create a Keyless Signature
Infrastructure (KSI), replacing the traditional Public Key
Infrastructure (PKI) that uses asymmetric encryption and a
repository of public keys maintained by a centralized Certificate
REMME’s blockchain eliminates human factor from authentication,
enabling businesses to validate users and devices without a
password. This is achieved by decentralizing the system and
leveraging a distributed public key infrastructure for verification
Scattering of communication metadata throughout the
distributed ledger reduces the risk of surveillance. Users
aren’t required to link to their email addresses or telephone
numbers, which enhances privacy.
Blockchain Programming Applications Beyond
Blockchain powers digital currencies to keep an ongoing and
continually growing record of monetary transactions, and does
Here’re five blockchain programming applications used for
purposes other than cryptocurrency:
Secure medical records
Incompatible back-end systems and fragmented data trails have
been the norm in Electronic Medical Records (EMRs). Blockchain
facilitates smart contracts that lead to a decentralized content
management system (CMS) for your healthcare data. Convenient and
adaptable decentralized systems conceives an authentication log to
govern medical record access and provides auditability. The
system can be seamlessly integrated with a healthcare service
providers’ existing solution, enabling interoperability.
Make smart contracts
In smart contracts, the code is recorded on the
blockchain. When a triggering event occurs, such as the start date
of a clause, the contract automatically executes the
obligations according to the coded terms. Smart contracts,
powered by decentralized blockchain, can be a major
disruption in various industries.
Fraud prevention in elections
Blockchain can be effectively used for allaying fears
regarding voting machine fraud. This technology combines with
elliptic curve cryptography to create an open-source, secure
platform that is verifiable from end to end.
Aid of refugees
Being a refugee can be a scary experience. They can rejoice now
as blockchain has been successfully employed for a
charitable cause for refugees. The United Nation's World Food
Programme (WFP) ran a project designed to direct resources to about
10,000 individuals when redeemable cryptocurrency-based vouchers
were issued to them. Refugees used the funds for purchasing
necessities like olive oil, pasta, and lentils.
Implementation of IoT
Blockchain can help build a new standard for the emerging
Internet of Things (IoT). The platform can register the identities
of Bluetooth low energy (BLE) and near-field communication (NFC)
chips, two core components of IoT that enable smartphones to
interact with other devices.
Use of blockchain extends cryptocurrency. The technology carries
a lot of promise for an array of useful applications that can
transform the world for the better. It’ll be interesting to watch
how the technology evolves in the future. Why not explore FP Complete’s
experience with Blockchain?
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