EthCC 2: Shawn Tabrizi
summary
Shows that Substrate stores a compact Rust-compiled on-chain WASM runtime and, if a node’s native binary is out of date, falls back to an embedded WASM interpreter so everyone shares identical execution. Demonstrates building a CryptoKitties-style chain, adding a breed function, generating a new WASM, and calling sudo to install it on-chain — the UI gains new buttons and the node continues producing blocks with no fork or restart. Uses Rust, WebAssembly, Substrate modules and governance hooks to enable hot runtime upgrade.
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chapters (11)
- 0:00Start
- 1:19Blockchain Upgrades
- 2:11Hard Forks
- 6:22Runtime Modules
- 6:36Runtime Module Library
- 7:33Why Do We Choose Rust
- 9:13Wasum Interpreter
- 12:40Creating Gap Chains
- 13:02Scaling Issues
- 19:43Rebuild the Wasum
- 23:13Overview
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