When your wallet pops up a “Please sign” window, what exactly are you signing?
Definition: Bitcoin and Ethereum both use ECDSA signatures on the secp256k1 elliptic curve. Bitcoin also introduced Schnorr signatures with the Taproot upgrade.
Why this matters: A signature request from your wallet isn’t necessarily a transfer; it could also be a token approval or an off-chain signature. What happens after you sign may be much like making a transfer.
When sending $BTC , your wallet signs the transaction with your private key, and nodes across the network verify the signature using the public key. Current: 81942.63.
Be extra cautious of projects claiming to offer stable, high returns.

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