...
The oracle_votes table is used during unwrapping operations. The registered oracles will call unwraptokens and emplace a new record. Once an oracle calls this action and 51% 100% consensus is reached, the unwrapping will be approved and funds will be transferred.
...
regoracle - Oracle must be a topprod and must be approved by eosio permissions ( BP msig )
unregoracle - Any registered oracle can unregister themselves. eosio permissions grant BPs to unregister ANY registered oracle using an msig. Oracle must be a topprod and must be approved by eosio permissions ( BP msig )