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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Ethereum or Hyperledger? IOTA or Hashgraph?

Here some useful comparatives between Ethereum, Hyperledger Fabric and R3 Corda blockchain frameworks from the fantastic article of Philipp Sandner (see here). Enterprise Ethereum Alliance (EEA) is an organization to make the Ethereum blockchain useful for Business cases (like the Hyperledger frameworks) Why Enterprise models if you can use a public blockchain like Ethereum? We want…

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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 (PART II)

This post is the continuation of the previous post: How to call methods of Ethereum Smart-Contracts from WordPress with MetaMask, Web3 and Javascript Now we want to call the method “buy” and send some Ether in the transaction to buy tokens from our Ethereum Smart-contract (for MAAT tokens). Then we must change the javascript code…

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