It's bridged by Mostr. NIP-05 let's you verify the bridge domain but that's all. The post itself should have a tag linking to the original mastodon server, but at least Damus doesn't render that so it's tedious to check. europa.eu is presumably real. https://image.nostr.build/24b9f780314dc802669a4e22e3d88fbbd69bb27afcd1ea3497907896bcb3e8b5.jpg