Why Nostr? What is Njump?

Public Key
npub133f2wuzqdsgu36e5z5es70mg2j5fhgglnq2qvx2ql0fq50j6dz0qfznjyl
NIP-57 Address
safesnake3@primal.net
Profile Code
nprofile1qqsgc548wpqxcywgav6p2vc08a59f2ym5y0es9qxr9q0h5s28edx38s7yr38l
Author Public Key
npub133f2wuzqdsgu36e5z5es70mg2j5fhgglnq2qvx2ql0fq50j6dz0qfznjyl