An Introduction to Polkadot and Parachains
summary
Polkadot is a Layer‑0 relay chain that inherits security across heterogeneous parachains built with the Rust‑based Substrate framework; about 64% of DOT is staked across 297 validators and the network has ~863,000 accounts and 25 runtime upgrades since launch. Acala builds an EVM-compatible parachain with a built‑in DEX, liquid DOT staking, and aUSD stablecoin using substrate pallets, plus direct bridges (Compound grant) to other chains. Kusama acts as a fast canary where parachain crowdloans raised nearly $800M and teams win slots via parachain slot auctions.
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chapters (27)
- 0:00Introduction
- 0:35Background
- 1:10Agenda
- 1:28Polkadot
- 3:48Polkadot Background
- 4:45Parachains Background
- 5:26What is Polkadot
- 6:01Common Misconception about Polkadot
- 6:41Parachains
- 7:17Relay Chain
- 8:13Smart Contract Platforms
- 8:28Liquidity
- 10:26Substrate
- 11:09Security
- 11:29Bridges
- 12:39Kusama
- 13:47Traditional Model
- 14:15New Model
- 14:55Kusama Network
- 15:37Substituting
- 15:58How Substrate works
- 16:55Using Substrate to build an EVM
- 17:43Polkadot runtime upgrades
- 18:32Current partnership
- 20:49Hybrid finance
- 21:09Whats next
- 22:50Questions
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