Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Blockchain Fundamentals: Decentralized Technologies Overview

Description

This lecture covers the basics of blockchains, distributed ledger technologies, and smart contracts. It delves into the history of blockchain development, the need for blockchain, successful use cases, technical parameters, and challenges faced. It also explores the different types of blockchains, node governance, user access, storage, and consensus protocols. The instructor discusses real-world applications in various sectors like finance, supply chain, healthcare, and energy. The lecture concludes with an analysis of blockchain project failures, technical challenges, and upcoming trends in the blockchain space.

Official source

Ontological neighbourhood

Computer engineering

Computer security: Blockchain

Related concepts (32)

Blockchain

A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data nodes are represented by leaves). Since each block contains information about the previous block, they effectively form a chain (compare linked list data structure), with each additional block linking to the ones before it.

Distributed ledger

A distributed ledger (also called a shared ledger or distributed ledger technology or DLT) is the consensus of replicated, shared, and synchronized digital data that is geographically spread (distributed) across many sites, countries, or institutions. In contrast to a centralized database, a distributed ledger does not require a central administrator, and consequently does not have a single (central) point-of-failure.

Consensus (computer science)

A fundamental problem in distributed computing and multi-agent systems is to achieve overall system reliability in the presence of a number of faulty processes. This often requires coordinating processes to reach consensus, or agree on some data value that is needed during computation. Example applications of consensus include agreeing on what transactions to commit to a database in which order, state machine replication, and atomic broadcasts.

Blockchain analysis

Blockchain analysis is the process of inspecting, identifying, clustering, modeling and visually representing data on a cryptographic distributed-ledger known as a blockchain. The goal of blockchain analysis is to discover useful information about different actors transacting in cryptocurrency. Analysis of public blockchains such as Bitcoin and Ethereum is typically conducted by private companies like Chainalysis, TRM Labs, Elliptic, Nansen, CipherTrace, Elementus, Dune Analytics, CryptoQuant.

Smart contract

A smart contract is a computer program or a transaction protocol that is intended to automatically execute, control or document events and actions according to the terms of a contract or an agreement. The objectives of smart contracts are the reduction of need for trusted intermediators, arbitration costs, and fraud losses, as well as the reduction of malicious and accidental exceptions. Smart contracts are commonly associated with cryptocurrencies, and the smart contracts introduced by Ethereum are generally considered a fundamental building block for decentralized finance (DeFi) and NFT applications.

Related lectures (40)

Blockchain Fundamentals: Overview and Use Cases

Provides an overview of blockchain technology, covering its history, key elements, use cases in different industries, and technical challenges.

Blockchain: Introduction and Evolution

Covers the introduction and evolution of blockchains, including decentralization, trusted third parties, and the history of blockchain technology.

DLT: Real-World Applications

Delves into the real-world applications of Distributed Ledger Technologies in various sectors, showcasing examples like border control systems and supply chain monitoring.

Consensus Mechanisms: Bitcoin and Distributed Ledger Technology

Explores permissionless and permissioned consensus in Bitcoin, covering information-based money, public keys, and asynchronous pacing mechanisms.

Limitations of Bitcoin and Increasing TPS