I’m grasping(?) blind signature. This is the first book that I’ve seen the key pair concept (npubs & nsecs) implementation, which we have on #nostr. Soooo cool!

nostr:note1hstdn9mqfc9e8mhuc9fwgd9dxd52vq48zf6xw4mp35eefq9q4r7s7w4kdf