Public Key
Cryptography● Common
A point on the secp256k1 elliptic curve derived from the private key using one-way multiplication. Can be shared publicly to receive payments. Compressed format is 33 bytes (02/03 prefix + x-coordinate). Used to verify signatures and derive addresses.
Technical Notes
Derived: pubkey = privkey × G (generator point). Compressed: 33 bytes, uncompressed: 65 bytes. For Taproot, uses x-only format: 32 bytes. Cannot reverse to find private key (discrete log problem). Hash of public key forms the address.
Metadata
Visibility: Public
Created:1/3/2026by System