EthCC 2: Emiel van der Hoek

on YouTube ↗30m

" summary

Polkascan is a multi‑chain block explorer built for Substrate that harvests node APIs into a single stack: a harvester application plucks blocks and extrinsics, a general database (prototypes reach 10 terabytes), and an API plus UI on top. It decodes runtime bytes using runtime metadata to classify transactions, indexes events (account creations, transfers) for fast searches, warns about runtime type changes (64 vs 128 bits), and plans an open‑source solo chain Explorer while pursuing a grant.

AI-written summary · about

" chapters (8)

1. 0:00Start
2. 3:50Multi-Chain Explorer
3. 5:47The Polka Dot Ecosystem
4. 6:21Substrate Runtime
5. 11:05Core Functions
6. 13:28Storage Functions
7. 14:52Components of the Substrate Runtime Metadata Definition
8. 23:38Roadmap

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