Connect with us

Ethereum

How to write an Ethereum Smart contract from scratch? : Expert take

Published

on

How to write an Ethereum Smart contract from scratch?

How to write an Ethereum Smart contract from scratch? : Expert take

If you have gone through the basics of Ethereum and how the whole things work, you would of course be interested in knowing how the smart contracts are built. One of the most sought after feature of Ethereum is a smart contract and more and more people are looking to build and work with these decentralized applications or dApps. Of course this is a whole another new dimension that people are being introduced to and without any preparation beforehand, plunging yourself straight into the technical depths of this space can be quite daunting.

To help you with getting started on how to simply write an Ethereum smart contract from scratch, here is a little guide to help you by. Since it is always wise to take baby steps while learning something new, we would not be focussing much on deploying the app and testing it but simply how to get started with writing one.

Before we get started, let us have a quick recap and remember what a smart contract exactly is. It is simply a computer protocol that has been codified to enforce the negotiation of a contract on the Ethereum platform.

If you have absolutely no experience with programming, you might face a little difficulty getting on board with writing a smart contract. We first recommend gaining some basic knowledge about coding so that you can ease into your journey of writing a smart contract.

 

Decide on the business logic

Since a smart contract is used to basically implement a business logic, decide on what you want your smart contract to be doing. A vague idea would not help you. You need to know and identify exactly what you want your smart contract to do for you. Do you want to use it in a casino? Do you want to build it for a marketplace? It could be about anything and everything but you need to have a very clear picture in mind. A solid idea.

 

Learn Solidity for ethereum smart contract

Once the business logic or creative thinking part of this endeavor is done and decided, all you are left with is the technical part. The very first step for you to walk upon is to learn Solidity. The Ethereum Virtual Machine works on this programming language. Its structure is very similar to Javascript and C++ and once you have carefully gone through its documentation and learnt the syntax of this language and understood how to write a code in Solidity, you should proceed ahead to get your hands at the required toolkit to completely work your smart contract on. You could learn Solidity from several books like Solidity Programming Essentials: A beginner’s guide to build smart contracts for Ethereum and blockchain, Introducing Ethereum and Solidity: Foundations of Cryptocurrency and Blockchain Programming for Beginners, Ethereum Smart Contract Development: Build blockchain-based decentralized applications using Solidity. You could also access the official Solidity guide by Ethereum at this link.

 

Some basic tools for ethereum smart contract

Now which of all the given tools you would require for your smart contract depends on the business logic you wish to build however these are the tools which almost all of them need.

The very first thing you would need is a tool named Truffle. You can access it on Github at this link. Truffle is basically a development framework for Ethereum in which you would code your business logic using the programming language Solidity. Next you would need to get your hands on Node.js, a runtime environment to write your tests and deploy them. Now for greater efficiency you would need something that would manage your accounts and tokens and that is just what Parity does which is a fast and much more secure Ethereum client than any other available out there. The last must have tool on this list would be Web3.js. You would of course require something that would bridge the gap between your laptop and the Ethereum network. Web3.js does just that by making a communication protocol with the Ethereum network using a Javascript API.

 

Write the ethereum smart contract

Retract a step back from starting to write your smart contract and first write an applicable automated unit test of your business logic in Javascript or even Solidity itself. This would be used to test your smart contract against and see if it actually works correctly or not.

Once you have good practical and working knowledge of how to code in Solidity and you have set up all the others tools on your laptop like Truffle, Node.js, Parity and Web3.js, you can now begin to code your own smart contract, finally. Since you had already set out the business logic you would want your smart contract to work on, you need not brainstorm now. All you have to do is use your knowledge and understanding of Solidity and code your business logic by implementing it in Truffle using the Solidity language.

 

Testing and deploying

Once your business contract is codified and ready, test it against the automated unit test. I fit throws an error, fix it, if it does not, move onto the next step of deployment. Compile your tested smart contract in Truffle and deploy your smart contract on the original Ethereum network or on the Ropsten testnet. Both these options would require some sort of gas to pay for the processing.

 

Follow these simple steps, and although this might take a little more time than you would like, remember, patience is virtuous and in the long run it would provide you great outputs.

#Exchange

What is NEO? Is it a good investment? How is it different from Ethereum?

Published

on

NEO can be considered as the Chinese version of Ethereum, It has a lot of similarities with Ethereum but not exactly the same as Ethereum. NEO vs Ethereum.

Attributes which render NEO, to become a potential competitor to Ethereum.

Introduction

Ethereum is one of the most famous cryptocurrency after Bitcoin. Ranking second, according to Coinmarketcap, the crypto protocol provides a standard template in order to facilitate anyone to create decentralized applications in their own customized manner. In those decentralized applications, the virtual commodities which are traded are confirmed on the Ethereum network. Scalability has always been an issue with respect to the Ethereum network due to an adamant usage of these decentralized applications. Crypto kitties were the most trending decentralized app, which had even once caused a clog in the Ethereum network. Let us see both while comparing Neo vs Ethereum.

 

NEO

NEO can be considered as the Chinese version of Ethereum. It is evident, in this world, that the people of China can be considered a bit arrogant in nature or patriotic towards their country, as they restrict themselves from using the Western products and services. They are known to have their own version of Facebook, WhatsApp, Amazon, also one of the most famous cryptocurrency platform, Ethereum which they use extensively. The cryptocurrency network is nothing but a distributed network for the improvement of the smart economy.

Further insights into NEO

NEO protocol basically comprises two kinds of coins, one is the native coin, NEO and the other one being, NeoGas. The concept here is very similar to that of Ethereum. NEO is used for all the transactions which take place under the NEO Network, and the NeoGas is used to used as a fuel for the transactions. All the native tokens were pre-mined and hence no mining process is available but this is not the case for NeoGas, as it is used to reward the nodes of the network to incentivize them, to help in maintenance and verification of the blocks.

 

The practical use case seems to be very simple. If two users need to undergo an agreement and have a transaction, then they can opt for the NEO smart contract where their assets are first converted into the digital cryptocurrency Neo. Followed by which, according to the rules and regulations, predefined on a smart contract the transaction is undertaken.

NEO vs Ethereum

The cryptocurrency has a lot of similarities with Ethereum. Although it is not exactly the same as Ethereum. Let us see Neo vs Ethereum Analysis.

In the Ethereum Network, an exclusive programming language is incorporated in order to develop the smart contracts, but in case of NEO, smart contracts can effectively be developed by using some of the already existing and popular programming languages like as C# and Java. Also in Neo vs Ethereum, Further developments are being done with respect to the NEO Blockchain, where the creation of smart contracts is to be made available in Python as well as Go too. This feature can be acclaimed as a reason for an advantage of NEO over Ethereum.

Another key difference in Neo vs Ethereum is that can be marked between the two prominent Blockchain’s is that NEO envisages Digital Identity concept whereas Ethereum doesn’t. This feature is highly appreciated in the international market as one needs to trust the other person and somewhat transparency is obtained through this paradigm.

Is NEO worth investing in?

As the token’s total supply is fixed at 100 million, the value of the coin, over time, is bound to experience a bullish trend. The process of the release of the cryptocurrency coin is vested with a Smart Contract, where only 15 million coins are released every year. Half of the total supply was already released earlier itself. This consistent release of coins is what offers stability to it. The platform even provides high scalability and controls the latency with 10,000 transactions per second. Being developed in China the cryptocurrency coin is somehow restricted, for its unconditional adoption by the Asian countries, as China is not a Crypto friendly nation. This could mark a potential risk to the coin.

 

Conclusion

Although NEO is regarded as the ‘Ethereum of the East,’ restrictions on the cryptocurrencies in the Asian countries can resist the growth of the network. Otherwise, it possesses the potential to leave Ethereum behind. As the cryptocurrency market is highly volatile an extensive background homework is mandatory, before an understanding any investment in the crypto field. One must bet only the amount of funds, that he/she is OK to lose.

Continue Reading

Altcoins

Top ERC20 Tokens. The list of Top 100 ERC Tokens.

Published

on

ERC20 Tokens are based on the ethereum platform and most of the ICO tokens are erc20. Here is top ERC20 Tokens list based on their structural use case.

Some of the most valuable ERC20 tokens.

Below is Top 100 ERC20 Tokens list based on their structural use case.

BNB

The native token of the cryptocurrency exchange, Binance. Number 1 on the top erc20 tokens list.

 

OMG

Omisego is an open payment platform. Number 2 on the top erc20 tokens list.

 

VEN

veChain is a platform focusing on various fields. Number 3 on the top erc20 tokens list.

 

ZRX

A Token of 0x protocol, for the decentralised exchanges. Number 4 on the top erc20 tokens list.

 

ZIL

Zilliqa is deemed to be the next gen blockchain platform. Number 5 on the top erc20 tokens list.

 

AE

Aeternity Blockchain offers a lightning fast smart contracts. Number 6 on the top erc20 tokens list.

 

MKR

Maker platform makes some of the most stable coins. Number 7 on the top erc20 tokens list.

 

BTM

Bytom is a Blockchain platform for financial and digital asset institutions. Number 8 on the top erc20 tokens list.

 

BDT

It is the native token of one of the most prominent decentralized crypto exchange, Blockonix. Number 9 on the top erc20 tokens list.

 

BAT

The Basic attention token is a decentralized ad Exchange platform. Number 10 on the top erc20 tokens list.

 

REP

Augur is a decentralized prediction market protocol.

 

GNT

Golem is the first global market for computer power.

 

NPXS

Pundi X is a Blockchain service for developers and Investors.

 

WTC

Waltonchain Blockchain collaborates with IOT for better supply chain management.

 

KCS

The token is nothing but the exchange KuCoin’s shares.

 

RHOC

Rchain is a Turing complete and byzantine fault tolerant Blockchain.

 

SNT

Status token aims to build iOS and Android interface to access Ethereum.

 

PPT

Populous is an intelligence and invoice discounting platform.

 

XIN

Mixin is a mobile Blockchain connecting various Blockchains.

 

MITH

Mithril is a Decentralized platform for social network.

 

IOST

IOST provides a decentralized platform for Internet of service.

 

DGD

DigixDAO is a Decentralized Autonomous Organisation.

 

AION

AION is a multi tier system for solving scalability and interoperability.

 

ELF

Aelf is a customizable system for Blockchain.

 

LRC

Loopring is a brand new crypto trading standard where the users have complete control over their assets.

 

FUN

Funfair is aimed to improve casino gambling using Blockchain Technology.

 

KYB

Kyber network aims for an easy transfer between different platforms.

 

POWR

Power Ledger aims for a sustainable development through solar energy and Blockchain Technology.

 

LOOM

Loom network allows for a platform to run decentralized apps.

 

KIN

Kin provides a Blockchain platform for chat apps and social media.

 

WAX

Worldwide Asset eXchange allows virtual Marketplaces to run on them.

 

DCN

Dentacoin aims to imotice the dental Industry through Blockchain.

 

PAY

TenX is built on Comit network for frictionless transactions throughout the world.

 

MANA

A decentralized platform for the virtual reality.

 

MCO

Monaco is a Visa Debit card funded by cryptocurrencies used for daily transactions.

 

BNT

Bancor protocol is a standard  used for the future smart tokens.

 

POLY

Polymath network connects the developers, KYC providers, legal experts, etc.

 

CMT

Cybermiles is a smart contract template for e-commerce companies.

 

DROP

Dropil is an intuitive platform for the exposure of cryptocurrency domain to the newbies.

 

QASH

It is deemed to act like a fuel to the LIQUID platform.

 

ENG

Enigma is a platform for running end to end decentralized apps.

 

PAYX

Paypex aims to improve payment systems by using the Ethereum network.

 

ETHOS

Ethos provides for a portfolio manager along with universal crypto wallet.

 

NULS

Nuls is open source and aims to provide developmental tools to its members.

 

VERI

Veritaseum drives a peer to peer marketplace which is software driven.

 

SUB

Substratum is a network allowing for content sharing through internet without VPN.

 

GTO

Gifto is an amazing decentralized platform for gifting content creators.

 

THETA

An open source project to improve the decentralized streaming network.

 

CTCX

Cortex provides for a suite of state of the art machine learning models.

 

DRGN

Dragonchain is a Blockchain platform by Disney.

 

SALT

Salt is a Blockchain backed loan lending system.

 

STORM

The Storm network aims to improve the lives of workers around the globe.

 

LINK

Chainlink is used for helping the smart contracts access resources.  

 

HPB

High Performance Blockchain provides for an accelerated Blockchain performance.

 

TUSD

TrueUSD is a USD backed stable coin.

 

GTC

Gamecoin is used to tease digital assets of a game through this network.

 

NOAH

Noahcoin supports economic development through Blockchain.

 

BIX

Bibox is an encrypted exchange with powers of AI.

 

CENNZ

Centrality helps startups with their decentralized apps.

 

FSN

Fusion provides architecture and infrastructure to the financial institutions.

 

DDD

Scry.info arranges the upstream, midstream, and downstream datas.

 

SAN

Santiment Network Token believes that Tokens have three dimensions.

 

CVT

Cybervein is a decentralized platform for data management.

 

CVC

Civic platforms helps in the protection of identity.

 

MAN

Matrix AI Network is also regarded as the intelligent Blockchain.

 

STORJ

Storj provides decentralized cloud storage solutions.

 

ICN

Iconomi is an asset management platform for digital assets.

 

ODE

Odem is one of the first Decentralised education Blockchain platform.

 

RLC

iExecRLC aims at decentralisation of the cloud service through Ethereum environment.

 

HOT

The Holo community aims to build a decentralized cloud system.

 

BLZ

Bluzelle provides for a Decentralised and shared storage environment.

 

NCASH

Nucleus Vision transforms offline retail through IoT and Blockchain.

 

AGI

SingularityNET is a Decentralised platform for AI algorithms.

 

GNO

Gnosis supports an amazing forecasting tech which is market dependent.

 

MDS

Medishares is the first mutual insurance marketplace which is globalised in nature.

 

REQ

The Request network allows for customers to initiate a payment request globally.

 

R

Revain is a pioneer in the unbiased Blockchain review platform.

 

TNB

The Time New Bank provides a time value transition network.

 

DAI

Dai is a stable coin based on decentralisation.

 

SMT

Smartmesh is the fuel behind a distributed application platform, Spectrum

 

BFT

BnkToTheFuture is specialised in providing alternative financial product.

 

TTU

Ta Ta Tu is a Blockchain based social media platform.

 

CND

Cindicator is a market analysis platform based on Blockchain and hybrid intelligence.  

 

QSP

Quantstamp aims for mainstream Blockchain adoption through the increased smart contract security.

 

NEXO

Nexo is a pioneer in the loans backed by crypto.

 

ENJ

Enjin Coin is a cryptocurrency for the virtual community.

 

ANT

Aragon is a decentralised application employed to create Decentralised organisations.

 

DATA

Streamr DATAcoin is a censorship free currency restricted within a Blockchain.

 

RUFF

Ruffchain is a Decentralised open chain platform for improvement of IoT.

 

AMB

Ambrosus is supply chain based on the Blockchain network.

 

SNM

SONM is an universal supercomputer and SNM is an internal token.

 

KICK

KickCoin provides a payment system which uses KICK Tokens.

 

BTO

Bottos is a public chain with integration with AI along with data and model markets.

 

C20

CRYPTO20 is the first tokenised index based on the cryptocurrencies around the world.

 

POE

Po.et is a shared ledger for tracking the ownership of creative digital assets.

 

MTC

Docademic is the Blockchain initiative for improvement of the healthcare Services throughout the world.

 

GNX

Genaro Network is the world’s first decentralised storage network.

 

RDN

Raiden network provides an of chain scaling Solution for increased scalability and faster transactions.

 

DTR

Dynamic Trading Rights was introduced to bring in a trustless and transparent trading if the ERC20 Tokens.

 

ABT

The Arcblock Blockchain provides for a secure and fast payment system.

Continue Reading

#Blockchain

Blockonix Decentralized Exchange Launched!

Published

on

Blockonix DEX is a purely decentralized exchange with not even a single third party involved in your transactions with no chances of fraud.

Blockonix DEX that the world was awaiting is now live. Confirmed by the following tweet on Official Blockonix twitter account.

Here is everything you need to know about the exchange before you starting trading on Blockonix:

 

1. Purely Decentralized

Blockonix DEX is a purely decentralized exchange with not even a single third party involved in your transactions. This means that while trading only the buyer and the seller shall be involved in the trade. Being a completely Decentralized Exchange, all the transactions shall occur on the Ethereum Blockchain which makes it entirely hack proof which is the best quality of Blockchain.
Blockonix is spreading the word of decentralization which was meant to be the essential reason for the launch of the growth of cryptocurrencies. Blockonix believes that centralized exchanges eradicate the real value of cryptocurrencies and due to centralized exchanges Cryptocurrencies will never be able to become mainstream.

 

2. No Third Party Ownership

On Blockonix DEX, There will be no single/ third party or group of persons who own the Blockonix Exchange Ecosystem which means there can be no chances of fraud as all the transaction processing shall be automated on the Blockchain in a highly secured decentralized environment.

 

3. Trading Fee- Huge 70% Discount

Blockonix has implemented 0.1% trading fee which is the same for both: Market takers and Market makers. This is not yet seen on any other exchanges may it be centralized or decentralized. Usually every exchange charges a higher amount of trading fee from the Market Takers. The fee shall be charged in ETH.
70% Discount: Traders can also pay the fee through BDT Tokens which is the core token of the Blockonix Exchange. While paying the Fee through BDT, Users will automatically receive a discount of 70% on the transaction fee which makes it the trading fee just 0.03% which is the least amount of fee that any other exchange charges.
Apart from the trading fee the normal amount of Gas shall be paid by the user on each transaction which is the fee for the miners.

 

4. Astonishing Strategy to increase the value of BDT Tokens (Blockonix Tokens)

Blockonix has a very long-term plan of increasing the value of its core BDT Token on every transaction. (BDT Tokens have a limited supply of Approx 10 Million. That means only approx 10 Million BDT Tokens exist).

All the fee which will be earned in ETH through Trading shall be used to buy BDT Tokens from the BDT/ETH pair Market. This means that on every transaction, trading will immense in the BDT/ETH Market which gradually increases the value of BDT Tokens. Also, such BDT bought back from the market shall be permanently burnt by automated transfer to an Ethereum Smart Contract (BURN ADDRESS) which will burn all the transferred tokens forever and is irreversible.

How will it happen?

A. Every day at a particular Ethereum Block, an Ethereum Smart Contract shall place a buy order of the entire ETH balance collected during the day as Trading Fee in the ETH/BDT Market above the current best offer in the market. As soon as any part of the buying is successful, the BDT bought through the process shall automatically be transferred to an Ethereum Smart Contract (BURN ADDRESS), which will burn all the transferred tokens forever and is irreversible.

B. All the fee which will be earned in BDT Tokens shall be automatically burnt by en Ethereum Smart Contract (Burn Address) which means on every transaction, the scarcity of the BDT Tokens will keep on increasing and someday only a handful of tokens will be left. This is a great strategy for increasing the value of BDT Tokens as ‘Scarcity leads to a Higher Demand’.

The BURN ADDRESS is set to PUBLIC and can be seen by everyone.

 

5. Listing your Token on Blockonix Exchange

If you wish to list your own token on Blockonix Exchange, it is a straightforward process and such a simple process has never been seen on any other authenticated exchange.
Blockonix has a very nominal amount of Token Listing fee of 5 ETH or 1500 BDT for the New Token Listing. There is a small authenticity test made by the Blockonix team to check if the token is authentic or not. If your token is found out to be inauthentic then your Listing Fee is refunded back into your Ethereum account.

The Best Part:

The best part of Token Listing on Blockonix Exchange is even the token listing increases the value of BDT tokens. Amazing! Isn’t it?

All the Listing Fee that is paid in ETH by the Listing Company shall be automatically transferred to the BDT/ETH Market placing a buy order of the entire ETH balance collected during the day as Listing Fee on a particular Ethereum Block during the day. (The same process as in the case of Trading Fee)

All the Listing Fee that is paid in BDT by the Listing Company shall be automatically burnt by transfer to the Ethereum Contract (BURN ADDRESS). Such Burning of tokens is irreversible.
(The same process as in the case of Trading Fee)

This is a massive strategy to increase the value of BDT Tokens.

 

6. No Revenue Exchange

Blockonix will be the first ever exchange that will run without earning any revenue

How?

As all the Fees earned through Trading as well as Listing shall be either Burnt or Used to buy back BDT Tokens from the exchange. Also, such BDT which is bought from the BDT/ETH Market shall also be burnt forever by automatic transfer to the Ethereum Contract (BURN ADDRESS).

Such Burn Address is kept Public by the Blockonix Team so that everyone is able to see how many tokens are being burnt each day.
That’s Awesome!

This means that Blockonix will earn 0% revenue.

 

7. Most User-Friendly Experience

Blockonix has the most user-friendly interface ever seen in any decentralized exchange yet.
The Exchange is very simple to use and on the same time has the most advanced features for the expert traders.
With such an astonishing user interface, Blockonix is set to become the world’s number 1 decentralized exchange.

8. Launched with more than 200 Trading Pairs!

Blockonix is launched with more than 200 trading pairs including all the top Ethereum Tokens worldwide which is amazing for the communities of such tokens.

 

The Cryptocurrency Community has faced a lot of misfortunes in the recent past including the frauds by crypto exchange and Hacks such as the MT GOX and Coincheck Hack.
Making Blockonix ‘The Future of Cryptocurrency Trading’.

Continue Reading
Advertisement BitcoinAdvertising.com

Live Crypto Prices

  • BTC
  • USD
  • AUD
  • CAD
  • EUR
  • BTC
    Bitcoin(BTC) 7377.36
  • ETH
    Ethereum(ETH) 463.933
  • BCH
    Bitcoin Cash(BCH) 784.495
  • EOS
    EOS(EOS) 8.05267
  • LTC
    Litecoin(LTC) 84.7212
  • ADA
    Cardano(ADA) 0.165781
  • TRX
    TRON(TRX) 0.0357887
  • DASH
    Dash(DASH) 245.567
  • XEM
    NEM(XEM) 0.17088

Trending