#ACCOUNT means somebody else have keys or password stored with them to cross-check ownership

#SIGNATURE means owner has finger/pen or key or seed to sign off their identity

***BITCOIN and NOSTR has NO ACCOUNT***

digitally SIGNED and BROADCASTED on the respective virtual network of nodes or relays

sendtoaddress or signrawtransaction

sign with nsec and publish

a bitcoin address and nostr npub can be *** watched / blacklisted / muted / marked *** but cannot be blocked/suspended.

if u did not understand yet then u not know neither bitcoin nor nostr fully yet - half knowledge is dangerous n harmful.