Understanding that it is pretty straightforward to fetch the current owner of a NFT on Solana (get holder of solana nft using python), how could we get the owner at certain timestamp in the past?
One way I could think of is to get all the transfer transactions of a particular NFTs and sort all the from address by time. Just wondering if there are better ways.
Your pitched approach is the only possible one currently: Going through all transactions and filter them.
You could for example check how the solana explorer is doing it in the Token Transfer Tab: github