No, it is not possible to see who has blocked you.

When another player blocks you, they will no longer see the messages you send in the chat. You will still be able to see their messages. Players do not receive a notification when they are blocked, and there is no indicator showing whether someone has blocked you.

If you want to manage the players on your own blocklist, type /blocklist in any chat. This will display all players you have currently blocked.

To remove all players from your blocklist at once, use the command /unblock everyone.

Please note that you can only view and manage your own blocklist. It is not possible to view another player's blocklist or check whether a specific player has blocked you.