What is Nostr?

Public Key
npub1fwsj4q4lekfnwpn0q2dtptksv3mj25mkf4yeudryphj94yahk7aqmp8m7p
NIP-05 Address
null
NIP-57 Address
mignanimo@getalby.com
Profile Code
nprofile1qqsyhgf2s2lumyehqehs9x4s4mgxgae92dmy6jv7x3jqmez6jwmm0wspzfmhxue69uhhqatjwpkx2urpvuhx2ucpp4mhxue69uhkummn9ekx7mqgahcxp
Author Public Key
npub1fwsj4q4lekfnwpn0q2dtptksv3mj25mkf4yeudryphj94yahk7aqmp8m7p