Simple example of Ethereum Dapp! Without central server. All with Javascript and MetaMask

English – https://elconsejosimpatico.github.io ElConsejoSimpatico.org is something like a totally decentralized Twitter, to test any kind of CENSORSHIP and DDoS attack (Denial of Service), based on smart contracts in the blockchain of Ethereum using only HTML5 pages and javascript type Web3 to work. Remember that you must use MetaMask in your browser, or use Brave as…

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Ties.DB a database in Ethereum with Smart-Contracts

Imagine a way to create a Database over Ethereum using Smart-Contracts. Imagine a mix with Ethereum Blockchain and NoSQL Apache Cassandra technologies. Imagine searching using CQL over your Database over Ethereum. That’s Ties.DB!! We can make a try in this web. (You must use MetaMask in your Browser connected to Rinkeby Ethereum test-network and some Ether…

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Web3.js Documentation and examples

The web3.js library is a collection of modules which contain specific functionality for the ethereum ecosystem. The web3-eth is for the ethereum blockchain and smart contracts The web3-shh is for the whisper protocol to communicate p2p and broadcast The web3-bzz is for the swarm protocol, the decentralized file storage The web3-utils contains useful helper functions for Dapp developers. Here the full documentation. Here…

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Using IOTA with Javascript

IOTA is a transaction system for the Internet of Things. It isn’t another Blockchain, it’s a new generation system, it uses Tangle (a revolutionary network of transaction strings). Bosch and Cisco are supporting this project. Value transfer without any fees (like the project Raiblocks, another big one). We can start developing Javascript Dapps using these…

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Smart-Contracts with Qtum

Qtum is another Chinese Ethereum like NEO ( we talked about NEO in the previous post: NeoLink: The MetaMask for NEO ) Qtum specifications are: Anonymity and robust security like Z-Cash Smart-Contracts development like Ethereum Integrates Segwit and Decentralized Governance Protocol. Uses UTXO model like Bitcoin, more efficient than Ethereum…. Staking Qtum in your wallet for a time…

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How to call methods of Ethereum Smart-Contracts from WordPress with MetaMask, Web3 and Javascript

First you must create and deploy a SMART-CONTRACT in the Ethereum Test Net, you can follow these instructions: Creating my first Ethereum Smart-Contract in Test net Creating MrAddon token in Ethereum This post is based in the information of the previous post: Javascript development to interact with Ethereum Smart-Contracts To start, we have hosted a…

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Confluence trick to create pages from blueprint templates

You can easily create a HTML Link or ACTION BUTTON to create faster a page from Blueprint Template. PUT THIS URL in the LINK: https://jira.XXX.XXX/wiki/pages/createpage-entervariables.action?templateId=XXXXXX&spaceKey=YYYYY&title&newSpaceKey=YYYYYY&fromPageId=ZZZZ Replace the XXXXX variable by the ID of the Blueprint Template Replace the YYYYY variable by the ID of the Space Replace the ZZZZZ variable by the ID of the…

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