Interesting. Thanks for that. I guess I should have checked myself 🙂
Do they consider only archival nodes, and request a random block uniformly going back to the genesis block? Or just from the most recent few hundred blocks?
I ask because this might be basically about increased size of the chain. More blocks means the node is IO-bound while searching for an old block
Also, are recent blocks bigger? My BlockStats Explorer suggests that blocks are getting bigger in the last year or two
