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WeAreDevelopers LIVE • Apr 5, 2024

Blockchain, NFT and smart contracts for my application

Hendrik Ebbers

Blockchains initially scaled to guarantee trust, not system speed. Learn to deploy gas-optimized EVM smart contracts on modern proof-of-stake networks for lightning-fast, scalable Web3 applications.

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#1 about 3 min

Introduction to blockchain, NFTs, and smart contracts

An overview of distributed ledger technologies, smart contracts, and tokenization principles.

#2 about 5 min

Exploring the history and goals of Bitcoin

Satoshi Nakamoto's whitepaper established Bitcoin to create an everyday digital currency without central banks.

#3 about 6 min

Understanding cryptocurrency wallets and private keys

Wallets securely store public and private keys required to authorize transactions on cryptocurrency networks.

#4 about 6 min

Traditional banking vs distributed ledger cross-border payments

Leveraging stablecoins on Hedera drastically reduces transaction fees and settlement times for international transfers.

#5 about 4 min

Distributed ledger consensus mechanisms and scalability

Scaling a distributed ledger requires every node to execute all transactions to guarantee trust.

#6 about 6 min

Transitioning from proof of work to proof of stake

Proof of stake provides a vastly more energy-efficient network consensus compared to resource-intensive mining.

#7 about 5 min

Executing code on the Ethereum virtual machine

Ethereum introduced the ability to deploy and execute trusted code globally through smart contracts.

#8 about 3 min

Energy consumption of major blockchain networks compared

Comparing the massive electricity footprint of Bitcoin against Ethereum and traditional centralized technology companies.

#9 about 8 min

Enterprise applications and the Hedera public ledger

Global enterprise council members govern the high-speed and carbon-negative Hedera distributed ledger network.

#10 about 6 min

Compiling and deploying Solidity smart contracts

Developers write Solidity code that compiles into EVM bytecode for execution across multiple networks.

#11 about 6 min

Standardizing fungible tokens and NFTs with ERC-20

Standardized smart contract interfaces like ERC-20 enable developers to create interoperable digital assets.

#12 about 2 min

Preventing digital art theft with non-fungible tokens

Non-fungible tokens define ownership metadata independent from the easily copied underlying image files.

#13 about 3 min

Ensuring scalability and trust in blockchain applications

Storing constrained sets of critical data on highly performant ledgers ensures both security and scalability.

Matching moments

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Ryan Arndt · World Congress 2023

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Analyzing the core architectural layers of modern blockchains

John Woods John Woods · LIVE

3:17 min

Transitioning gaming platforms from legacy blockchain architectures

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2:38 min

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John Woods John Woods · World Congress 2024

3:23 min

Reducing transaction fees and understanding stablecoins

Brian Whippo Brian Whippo · Coffee With Developers

4:46 min

Exploring blockchain use cases and non-fungible token concepts

Nazar Hussain · LIVE

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Upcoming sessions on this topic

Open session

World Congress 2026 North America

September 25, 2026 · 16:10–16:40

Mainstage

ZTA: Zero Token Architecture

Kelsey Hightower

Minimalist

Kelsey Hightower
Open session

World Congress 2026 North America

September 25, 2026 · 14:50–15:20

Stage 7

The $0.15/month Algo-Trader: Architecting High-Performance Serverless Trading Engines

Vishwak Thatikonda

Lead Full Stack Engineer at SDH Systems

Vishwak Thatikonda
Open session

World Congress 2026 North America

September 25, 2026 · 16:00–16:10

Outdoor Stage

public void saveMoney(AI): The Developer's Guide to Unit Economics

Hrushikesh Pokala

Senior Software Engineer Lead at Equifax

Hrushikesh Pokala
Open session

World Congress 2026 North America

September 24, 2026 · 16:50–17:20

Stage 1

When Humans Stop Writing Code: Rethinking Languages, Compilers, and Responsibility

Simon Auer

Organizer of flutter vienna meetup and CEO of marqably

Simon Auer
Open session

World Congress 2026 North America

September 25, 2026 · 15:30–16:00

Mainstage

One Boundary for the Agentic Era

Mark Lechner

Chief Information Security Officer of Docker

Mark Lechner
Open session

World Congress 2026 North America

September 25, 2026 · 11:40–12:10

Stage 7

x402: Building Pay-Per-Request APIs for AI Agents

Brian Whippo

Senior Director Integrations and Developer Tooling, Algorand Foundation

Brian Whippo

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