Proof of concept for code chunk tracking.

[pipermerriam]

One sub-component of "State Expiry" and the underlying changes to the storage layout within the trie are that code will now be chunked and stored within the trie itself.

https://notes.ethereum.org/@vbuterin/verkle_tree_eip#Code

One thing that we want to verify is that tracking code chunk access will indeed be relatively trivial. Write a quick POC in a client that tracks code chunk access using something like the bitfield approach suggested by Vitalik on the call. (see call recording about 20-30 minutes into the call). Is it indeed trivial to implement? Are there any hidden complexities?

Suggested methodology for this would probably be to run a modified client, though it is possible the necessary information is available through the transaction tracing APIs as well.

[ogenev]

I'm going to take a stab on this issue. For reference, I will keep my notes and updates here.