Awesome Web3 Talks

History of Blockchain Technology - History of digital currency and blockchains - Problems with previous implementations - Chaum’s ecash, Adam Back’s hashcash, Szabo’s bitgold, etc.

Public-key cryptography - How does it work? - Public and private keys - One-way functions

Introduction to Hashing - What is hashing? - Cryptographic hashing algorithms - Collision-resistance - Hiding - Puzzle-friendliness

Sergey Narzarov from Chainlink discusses oracles, issues with current smart contracts, polkadot, and what he is excited for in 2019 during W3F's track at EthCC.

The internet has been viewed as transformative for society. But we are still effectively applying the same old business models and hierarchical structures to new technology. Dr. Gavin Wood, Founder of Web3 Foundation, Parity Technologies and Ethereum, explains why it's important for the internet to evolve into a truly decentralised web in order to allow for entirely new societal structures to be created.

Filmed at http://2016.dotgo.eu on October 10th in Paris. More talks on http://thedotpost.com The tried-and-true approach to sharing memory in Go is via communication. Yet there are scenarios where the amount of data is prohibitively expensive to pass around. Instead of falling back to locks, immutable data structures provide an alternative way, where we can achieve concurrent access to shared memory while at the same time make reasoning about complexity much easier.

Blockchain-related data structures and concepts - Hash pointers - Hash chains - Merkle trees

Web3 Foundation hosts a meetup to discuss Decentralized Exchanges after a Berlin workshop where a number of DEX projects came together to discuss ecosystem challenges. Presenting in the video are: 0:00, 2:35 Web3 Foundation Introduction - Dr. Gavin Wood & Peter Czaban 5:40 Radar Relay - Alan Curtis - An overview on Radar Relay + Centralized vs. Decentralized Exchanges 25:03 AirSwap - Michael Oved - Airswap and the token marketplace + Introduction to different liquidity types 44:51 Gnosis PM - Christiane Ernst - Gnosis DEX presentation + Auction Mechanism implemented in the Gnosis DEX 01:06:40 Kyber Network - TN Lee - Introduction to Kyber Network + Co-existing with Centralized Exchanges 01:27:55 Melonport - Gautham Nekkanti - Melonport walkthrough + Cross-chain exchanges 01:47:52 Web3 Foundation - Matthew Di Ferrante - Privacy-preserving exchanges 02:08:21 OmiseGO - David Knott - OmiseGo's 100% public Plasma.io DEX

Hashing In-Depth - Merkle-Damgard transforms - Digital signatures - Public identities

Decentralization - Distributed Consensus - Attacks on distributed consensus: False spending - block creation/modification, Denial of service, Double-spend attack, 51% attacks.

Proof of Work and Mining - What are miners doing? - Bernoulli trials and Poisson process outcome - Transaction fees and block rewards

Dillon Chen and Raymond Z. of Commonwealth announce Edgeware, a Wasm-based smart contract chain built on Substrate. They’re giving away 90% of tokens to anyone who locks up Ether for a finite amount of time, creating EDGE with ETH. Learn more: http://edgewa.re This video was recorded at Web3 Summit 2018 in Berlin.

Mining In-Depth - Mining difficulty - Hardware (CPU vs GPU vs FPGAs vs ASICs) - Mining pools - Problems with Reliance on Mining

Join Polkadot Seoul: www.meetup.com/Polkadot-seoul Adrian Brink of Web3 Foundation explains the benefits of building your decentralized application as a Polkadot parachain. This video was filmed in Seoul in 2018.

Smart Contracts, Part 1 - Difference between a smart contract and a runtime - What to consider when writing a smart contract - What belongs in a smart contract

Mechanics of Cryptocurrency - What makes up a transaction? - Ledger vs account models - Anatomy of a Block (transactions and metadata)

Proof-of-Stake - Proof-of-stake vs Proof-of-work - “Nothing at stake” issue and slashing - Benefits and Drawbacks of Proof-of-stake