I think  BCA nostr:npub1qny3tkh0acurzla8x3zy4nhrjz5zd8l9sy9jys09umwng00manysew95gx
BCA= Bitcoin Cost Average  

nostr:nevent1qqs9gup7sheern6s7p9nsxfgvgfay8ea8verh0004ytz7f40je8wdkspzpmhxue69uhkummnw3ezuamfdejsygqyey2a4mlw8qchlfe5g39vacus4qnflevppv3yre0xm56rm7lveypsgqqqqqqsns74ue