Yep. nostr:npub1gek0f5s300jzqg4av4e7l4hfejrrkhzf8km2pkuquhfmja6gwdcqw4qqp7 and nostr:npub1jcjxjg92200kdp8guw8sysg8gr0ez29hahrfdy49h30hgnkpa4kqfvmtwx were the first recipients of the hippo meme that started it all.