New pin in the collection:

nostr:npub1yp7wfa7msdpusf4vupzttttu2mx3cns7whx5cgkt4yr9pkpvujus2mzys7

https://kanuto.io/product/proof-of-work-pin

PS. Plus small collection of commercial pins:

(Sometimes I go to conferences)

nostr:npub1yp7wfa7msdpusf4vupzttttu2mx3cns7whx5cgkt4yr9pkpvujus2mzys7 + nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm