Once Bitten! A Bitcoin Podcast. BIP 110, Miner Centralisation and Node Is Law - Renaud Cuny #594
Feb 21, 2026
Renaud Cuny, a 25‑year telecom veteran turned Bitcoin analyst and creator of The Bitcoin Portal. He explains why 40% of block space is non‑financial, his BIP110 simulation that filters large spam data, and how filtering interacts with miner incentives, node costs, legal risks and the threat of mining centralisation.
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Spam Occupies A Large Share Of Block Space
- Renaud Cuny shows ~40% of used block space is non-financial data and stresses visibility was missing before his portal.
- He measured blocks averaging ~1.5MB used with under 1MB of financial transactions, revealing heavy spam impact.
BIP-110 Targets Large Onchain Files
- BIP-110 would remove large inscriptions and many large OP_RETURN payloads while leaving small metadata like small runes intact.
- The rule reduces risk from large permanent files but does not eliminate all non-monetary data.
Frame Filters As Protocol Optimization
- Treat BIP-110 as protocol optimization focused on Bitcoin's money use-case rather than censorship of speakers.
- Evaluate filtering as rule design to align the protocol with monetary priorities, not content policing.
