Blockchain, NFT and smart contracts for my application

A bank transfer used to take six days and cost $40. Now it's under a minute for pennies. Learn how.

#1about 5 minutes

The mysterious origins and creator of Bitcoin

Learn about the 2008 white paper, the goals of Bitcoin as an everyday currency, and the enduring mystery of its anonymous creator, Satoshi Nakamoto.

#2about 5 minutes

How crypto wallets work and why coins get lost

A crypto wallet stores your public and private keys, but losing these keys means your funds are permanently inaccessible, unlike a traditional bank account.

#3about 6 minutes

Solving cross-border payments with distributed ledgers

A proof-of-concept using Hedera between banks in South Africa and South Korea dramatically reduced international transfer times and costs from days and $40 to minutes and cents.

#4about 9 minutes

Understanding consensus mechanisms like proof of work

Distributed ledgers achieve trust by having every node execute every transaction, using consensus mechanisms like Proof of Work where nodes solve complex puzzles to validate blocks.

#5about 5 minutes

Introducing Ethereum and programmable smart contracts

Ethereum introduced the Ethereum Virtual Machine (EVM), allowing developers to deploy and execute trusted code, known as smart contracts, directly on the network.

#6about 3 minutes

Comparing the energy consumption of crypto networks

The energy usage of Proof of Work networks like Bitcoin is massive, while newer Proof of Stake systems like Ethereum 2.0 offer a significantly more sustainable alternative.

#7about 7 minutes

Exploring Hedera as a third-generation enterprise ledger

Hedera is a high-performance, carbon-negative distributed ledger governed by a council of major corporations, designed for enterprise use cases like supply chain tracking.

#8about 5 minutes

How to build applications with smart contracts

Applications are built using languages like Solidity, compiled to EVM bytecode, and deployed to the network, with transaction costs determined by computational 'gas' fees.

#9about 5 minutes

Understanding fungible tokens (FTs) and NFTs

Tokens are smart contracts that follow specific standards, with fungible tokens (like money) being interchangeable and non-fungible tokens (NFTs) representing unique digital assets.

#10about 5 minutes

Q&A on digital ownership, NFTs, and scalability

The session concludes with a discussion on the challenges of proving ownership with NFTs for digital art and strategies for ensuring security and scalability in blockchain applications.