Why can you share an address freely, but not a single word of your private key?
This is how I understand it: no institution can reset your private key for you. The blockchain only recognizes valid signatures, and anyone who gets your private key can transfer the assets associated with that address.
A digital signature proves that the person initiating a transaction holds the private key, without revealing the key itself.
Here’s a live price: $BTC , current price 82,177.11, 24h +0.64%.