Is it possible to query:
Something like the output of the /staking/delegators/{delegatorAddr}/delegations RPC endpoint, but at a specific height.
I think it might be possible via /abci_query, but not sure on the path and data arguments.
sounds like you want /staking/validators/{validatorAddr}/delegations, no?
https://cosmos.network/rpc/v0.37.9
to get a specific height, add a query param ?height=39000