Some tidbits from my research on eclipse attacks:

- most #Bitcoin nodes connected to 7+ unique ASN

- large-scale attacks require ridiculous amount of attack nodes (six to seven digits)

- #asmap increases attacker cost up to 180%

More at: http://cryptic.to/eclipse-attacks/

A few Bitcoin network insights from my talk at Advancing Bitcoin @ London:

- DNS seeds robust but room for improvement (e.g. tor support)

- 13,000 unique reachable nodes

- Half of the network is tor-only nodes (prob. Umbrel)

- More cloud than self-hosted nodes (Hetzner, DigitalOcean, AMZN alone contribute 25% of nodes)

- Potential second-order effect of ASMAP: reducing network cohesion

Details

https://github.com/virtu/talks/raw/master/2023-03-02-advancing-bitcoin/slides.pdf

Website with live data starts rolling out next week!

Hey #nostr, finally made it!