SC01 also knows which Sc curator voted

He wouldn't know unless the sc curators follow a strict schedule (recorded at the blockchain) and only the person responsible for the day would be answerable for all activity (all curators don't vote at once).

However, some people don't like disclosing their curation schedule because of the beggars.

Anyway, the schedule can be shared privately with the off-chain spokesperson of sc01 to maintain transparency or there have to be other ways to do this... a comment is not necessary perhaps...🤔