I'm sure that I've collected a few blocks on nostr.
nostr:nevent1qqsp5pau0ua6p6jvks5kj33nv3hyhpt3srdsndshd2jhu5fe28ae0vcprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hsygpm7rrrljungc6q0tuh5hj7ue863q73qlheu4vywtzwhx42a7j9n5psgqqqqqqs89lmdu