Plus de 350 000 tokens circulent aujourd’hui sur Ethereum. Le standard ERC-20 proposé par Fabian Vogelsteller et Vitalik Buterin en 2015 est une des grandes promesses d’Ethereum : chacun peut frapper sa propre monnaie en quelques lignes de code.

My Stupid Token (MyStupidToken.sol) est un template d’ERC-20 très basique qui utilise un set de smart contracts proposé par OpenZeppelin (le contrat est disponible ici)

C’est une des façons les plus sécurisées qui existent pour créer un actif numérique. Ces unités ne peuvent pas être copiées. Une fois que le contrat est déployé, toutes les unités sont transférées vers votre wallet. Dans ce tuto, nous allons utiliser le réseau de test Goerli, c’est un des réseaux de test qui réplique le comportement d’Ethereum.

Pour commencer :


As of now, you can find more than 350,000 tokens circulating on Ethereum. The ERC-20 standard was created by Fabian Vogelsteller and Vitalik Buterin in 2015. It allows you to create your own currency in a few lines of code.

My Stupid Token (MyStupidToken.sol) is a template of a basic ERC-20 token. It uses the set of Solidity contracts provided by OpenZeppelin (here).

It’s one of the safest existing way to create a digital asset that can’t be counterfeited. Once the contract is deployed, all the supply is sent to your own address. We will deploy this contract on the Goerli network, which is an Ethereum testnet.

MyStupidToken.sol:

// SPDX-License-Identifier: GPL-3.0pragma solidity >=0.6.0 <0.8.0;import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";contract MyStupidToken is ERC20
{
constructor() ERC20("My Stupid Token", "MST")…

Metamask est un wallet qui permet de recevoir et envoyer des cryptos et d’intéragir avec avec les applications décentralisées sur Ethereum.

Installer Metamask

Metamask reste un des wallets les plus utilisés aujourd’hui. Ce n’est pas le seul, cette liste en compte 65. Chacun a ses spécificités, Metamask permet notamment d’intéragir avec les applis décentralisées (les dapps).

  1. Allez sur https://metamask.io et installez Metamask sur votre ordi et/ou sur votre téléphone.

iExec recently mentored teams during three separate hackathons, where devs built using the iExec stack. This month also saw the conclusion of the second round of iExec developer training bounties. Of the submissions, successful implementations included applications such as a Bank Card Payment Validator, a Package Tracker, an Ethereum Weather Station, and the Ethereum Anemometer.

iExec mentored three successful hackathons:

Diffusion 2019 — A hackathon by Outlier Ventures,
iExec was a technical partner for the Diffusion 2019 hackathon in Berlin, held by Outlier Ventures. There was a 2000 DAI reward offered for teams delivering an application built with the iExec stack.

Decentralify — overall…


***UPDATE***

iExec V4 is here!

Easier — User/Dev Experience Upgrades

Faster — Sidechain Integration

Cheaper — No Fees

More Powerful — GPU Support

Coming December.

iExec V4 will be released in December 2019. This upcoming version is key in the scaling and adoption of iExec, being faster, cheaper, and easier to use. Integrating features such Bag-of-Tasks, sidechain, GPU integration, TEE, UX improvements and more. Let’s have a look in detail what to expect for this upcoming release.


A few weeks ago, we launched a series of developer training bounties for decentralized oracles. Developers contributed to the four Gitcoin issues funded by iExec. Three of them already claimed their bounties, by successfully completing the training and delivering the application. So congratulations to @erazhu33, @j48 and @pengiundev!

If you like the sound of earning RLC while learning how to develop off-chain computing for Ethereum, then you will be interested in the following announcements (more chances to be rewarded in RLC tokens):

  1. Four winners have been selected for their contributions to the oracle project Idea Box


iExec offers one of the most complete and simple to use decentralized oracle solutions: being live on Ethereum mainnet, Trusted Execution Environment ready, and extremely easy and fast for developers to set up a custom API. We gave an introduction to decentralized oracles and the iExec approach in this blog post:

We believe that spending time acquiring new blockchain skills by building on iExec should be a rewarding experience, not only from a development perspective but also, financially.

We’ve funded 4 Gitcoin issues covering 4 different projects. Each one of them is rewarded $100 in RLC. Here is the step-by-step…


iExec offers one of the most complete and simple to use decentralized oracle solutions: being live on Ethereum mainnet, Trusted Execution Environment ready, and extremely easy and fast for developers to set up a custom API. We gave an introduction to decentralized oracles and the iExec approach in this blog post:

We believe that spending time acquiring new blockchain skills by building on iExec should be a rewarding experience, not only from a development perspective but also, financially.

We’ve funded 4 Gitcoin issues covering 4 different projects. Each one of them is rewarded $100 in RLC. …


***Update***

Unfortunately, it is not currently possible to join a public worker pool as an individual worker. This will be changing soon, and we’ve got some exciting plans to get individuals to connect their machines and earn RLC. You’ll be the first to know when that is!

On June 5 2019, 10:00am UTC, iExec will run a special community event for iExec Workers. For 24 hours, the number of tasks for the public worker pool will be increased, with over 7,000 RLC worth of orders placed on the iExec Marketplace. Using the virtual machine (VM) option, all you need to is connect and get ready to compute!

You’ll also need about 0.1 ETH (to hold in your account) and also 5 RLC to stake as a worker.

Since iExec V3 went mainnet, many machines have connected to the iExec Public Worker Pool and hundreds of RLC have…


Not Safe For Work is a commonly used app that filters out pictures that can’t be used for work. It can be used in situations such as when a user loads a new picture onto a web service, so the service can automatically validate whether it is appropriate to be shown to other users.

Screenshot of iExec NSFW app

The application can use several machine learning models. For example, “Not safe for school” or even “Not safe for anyone” trained models enable the app to identify these kinds of pictures.

For the iExec NSFW dapp, the requester (end-user) can actually choose which model he wants to use to filter his/her image. The default model is this standard model, historically maintained by Yahoo. The end-user workflow is pretty straight forward: you choose the dataset you’re going to use, you select a picture to be analyzed and run the app.

Julien Béranger

Co-founder of Interlude

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store