~/talk

Collator Protocol & Censorship Resistance

on YouTube 25m
Talkat Web3 Summit 2025 · 2025-07-16..07-18· [distributed-systems, web3]

speakers

name:Jeffrey Burdges
links:none on file
name:Bhargav Bhatt
links:none on file

resources

video:https://youtu.be/Rp6usu2wN-A
slides:none on file

summary

Evidence shows >45% Ethereum blocks see OFAC-style filtering and Polkadot moves system logic offchain to parachains to reduce relay load by 30× relay-chain compute improvement. The concrete fix is a collator scheduling change: use 4–5 consecutive slots per collator instead of strict round robin, combined with async backing and data availability reconstruction, assuming one honest backer and roundrobin-derived Aura. This reduces selfish-mining timing attacks and gives lagging collators time to reconstruct blocks.

AI-written summary · about

chapters (6)

  1. 0:00Censorship resistance intro
  2. 3:11Defining blockchain censorship
  3. 7:17Existing censorship mitigation
  4. 11:55Polkadot’s censorship approach
  5. 15:50Collator protocol design
  6. 22:21Q&A

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