There's no easy way, I looked up those post_id's in several hivemind databases and they gave completely different results. It turns out that hivemind assigns different post_id's on every database instance. Therefore, those post_id's are the ones present on Steemit's hivemind servers. I listed the corresponding posts here https://steemit.com/witness-category/@drakos/moving-to-hive-repost-because-tron-is-censoring-hive-related-posts