Blockchain

772 Videos

How the blockchain will radically transform the economy | Bettina Warburg

Say hello to the decentralized economy — the blockchain is about to change everything. In this lucid explainer of the complex (and confusing) technology, Bettina Warburg describes how the blockchain will eliminate the need for centralized institutions like banks or governments to facilitate trade, evolving age-old models of commerce and finance into something far more […]

Proof-of-Stake (vs proof-of-work)

Cryptocurrencies use a ton of electricity because of mining. In recent years people started working on a different technique called Proof-of-Stake. Not only does it use less energy, it can also be more secure.

Innovando con Blockchain | Gabriela Barrantes | TEDxPuraVidaSalon

Charla: Innovando con Blockchain Dra. Gabriela Barrantes es profesora de grado y posgrado de la UCR en la Escuela de Ciencias de la Computación e Informática. Además es investigadora del Centro de Investigaciones en Tecnologías de la Información y Comunicaciones. Obtuvo su grado de Bachiller en Computación e Informática en la UCR, el M.Sc. en […]

Blockchain Technology Explained (2 Hour Course)

Blockchain Technology Course will cover: – Technology overview – Blockchain evolution – Decentralized web – Distributed organizations – Distributed ledger – Smart contracts – Distributed applications – Internet of value – Token economies

BIT2ME | Exchanges descentralizados | Leif Ferrera | Congreso Blockchain Murcia

Leif Ferreira, CEO de Bit2Me nos habla de los exchanges descentralizados, sus ventajas, capacidades y características frente a las opciones centralizadas. https://amurbit.org/ https://blockchainmurcia.org/ https://bitbcn.org/

Transacciones Multifirma en Bitcoin – Script Language

En este vídeo explico como funcionan las transacciones con firma multiple en Bitcoin y su lenguaje de script para la validación. 🔷 Blog: https://medium.com/@AlbertoLasa 🔷 Twitter: https://twitter.com/LasaAlberto

Chapter – 13 Smart contract using Solidity – ERC20

Smart contract using Solidity (Ethereum) Chapter 13: ERC20 Topics: – What is ERC-20 Token? – Mandatory Methods – Optional Methods – Events – Writing an ERC20 Token in Solidity – Setting the Number of ICO Tokens #ERC20Token #SmartContractTutorial #SolidityTraining #SmartContract #Blockchain #Ethereum #dApps #Parity #Wallet #BlockchainSoftwareCompany Powered by: iFour Technolab Private Limited https://www.ifourtechnolab.com/ Follow Us: […]

DINERO FIAT SERIES PARTE V – BITCOIN VS FIAT

En este sencillo video del DINERO FIAT SERIES, te explico la introduccion de Bitcoin a nuestro sistema monetario, como se diferencia con el dinero fiat y quienes se ven beneficiados en este nuevo esquema. ❗Por favor ten en cuenta que el trading de margen es de alto riesgo y es solo para operadores experimentados. ⚔️ […]

Fundamentos de Blockchain e Criptomoedas 12 de 16: Testando chaves públicas/privadas

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What are Atomic Swaps?

What are Atomic Swaps? Atomic Swaps are an emerging piece of blockchain technology that can help users make peer-to-peer coin trades without any intermediaries! In this guide we cover how they work, and how they benefit you, the user!

3. Signatures

MIT MAS.S62 Cryptocurrency Engineering and Design, Spring 2018 Instructor: Tadge Dryja View the complete course: https://ocw.mit.edu/MAS-S62S18 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61KHzhg3JIJdK08JLSlcLId Discussion of hash signatures, public and private keys, examples of how to use elliptic curves vs. hashes. License: Creative Commons BY-NC-SA More information at https://ocw.mit.edu/terms More courses at https://ocw.mit.edu

Blockchain tutorial 25: Testnet and faucets

This is part 25 of the Blockchain tutorial explaining what a testnet is and what faucets are. This tutorial explains the following: – what a testnet is – what the purpose is of a testnet – show you a Bitcoin testnet block explorer – show you an Ethereum testnet block explorer – what a Bitcoin […]