edureka! posted this full four hour Blockchain course. 

Video index:

• 00:00 Introduction
• 3:04 Blockchain Use-cases
• 3:48 Issues with Current Banking Systems
• 6:23 How Bitcoin Solve the Issues
• 10:38 Bitcoin Transaction
• 10:39 What is Blockchain?
• 11:47 What is Bitcoin?
• 15:50 Bitcoin Transaction
• 23:29 Blockchain Flow Diagram
• 24:57 Blockchain Overview
• 26:58 Private Key Cryptography
• 27:36 P2P Network
• 29:28 P2P Network – Distributed Ledger
• 30:36 P2P Network – Digital Signature
• 31:50 Blockchain Program
• 32:20 Blockchain Transactions
• 33:45 Blockchain Types
• 35:27 Blockchain in a Nutshell
• 36:06 Blockchain Use-cases
• 45:46 Blockchain Demo – Ethereum
• 46:36 Blockchain Demo – Flow Diagram
• 47:00 Installing Blockchain
• 1:05:39 Blockchain Applications
• 1:06:09 Traditional Applications
• 1:08:24 Decentralized Applications
• 1:11:09 Technology Stack
• 1:12:08 Advantage of DApps
• 1:14:20 Blockverify
• 1:15:42 Ripple
• 1:17:52 Storj
• 1:20:50 Augur
• 1:23:14 Ethlance
• 1:25:34 Blockchain Wallets
• 1:26:24 Why do we need Blockchain wallet?
• 1:28:02 What is Blockchain Wallet?
• 1:29:19 Features of Blockchain Wallets
• 1:31:44 Types of Blockchain Wallets
• 1:35:09 Comparing Different Blockchain Wallets
• 1:39:04 Ethereum Fundamentals
• 1:39:51 Why Ethereum?
• 1:40:25 What is Ethereum?
• 1:40:42 Ethereum Network & Token
• 1:41:39 Comparing Ethereum & Bitcoin
• 1:43:48 Types of Ethereum Accounts
• 1:44:23 Smart Contracts
• 1:45:48 Solidity for Smart Contracts
• 1:47:20 Ethereum Virtual Machine
• 1:48:50 Ethereum Gas
• 1:50:00 Deploying Smart Contracts
• 2:04:40 Ethereum as a Platform
• 2:05:05 Decentralized Applications
• 2:05:35 Decentralized Autonomous Organisations
• 2:06:35 Future of Ethereum
• 2:08:49 Ethereum vs Bitcoin
• 2:08:54 Similarities beween Ethereum & Bitcoin
• 2:10:29 Cryptocurrency
• 2:11:19 Accounts
• 2:12:44 Smart Contract
• 2:15:59 Transactions
• 2:15:09 Consensus
• 2:16:29 Mining
• 2:19:29 Ethereum Job Trends
• 2:20:19 Tools for Ethereum Development
• 2:22:39 Solidity Compilations
• 2:22:59 Solium
• 2:39:49 Parity
• 2:24:24 Metamask
• 2:25:39 Command Line Tools
• 2:26:09 DApp
• 2:27:48 DApp Analytics Platform
• 2:29:23 Smart Contracts
• 2:30:23 What is a Smart Contract?
• 2:31:43 Key Properties of Smart Contracts
• 2:32:16 Language of Development
• 2:32:21 Advantages of Smart Contracts
• 2:33:11 Disadvantages of Smart Contracts
• 2:33:31 Smart Contracts Tools
• 2:34:11 Smart Contracts Use-Cases
• 2:47:11 Ethereum DApp
• 2:49:36 Traditional Apps vs DApps
• 2:50:16 What is a DApp?
• 2:51:01 Features of DApps
• 2:51:56 DApp Building: Technology Stack
• 2:55:36 Ethereum Clients
• 2:56:16 Geth
• 2:57:06 Metamask Browser
• 2:58:27 Web3.js API
• 3:00:17 Truffle Framework
• 3:00:37 Ethereum Networks
• 3:00:52 Private Test Network
• 3:20:28 Hyperledger
• 3:21:42 What is Hyperledger
• 3:25;05 How Hyperledger works?
• 3:25:40 Pattern Matching
• 3:26:30 Peer Roles: Committer
• 3:26:55 Peer Roles: Endorser
• 3:26:55 Peer Roles: Consenter
• 3:28:50 Hyperledger Projects
• 3:29:50 Hashgraphs
• 3:44:15 Blockchain Interview Questions