pseudonymity

Bitcoin P2P e-cash paper

Satoshi explains that Bitcoin uses ECC digital signatures with a new key pair for every transaction, providing pseudonymity, and that 5-10 block confirmations are typically sufficient.

Satoshi ↔ Martti Malmi Correspondence

Satoshi warns Malmi to de-emphasize Bitcoin's anonymity claims, distinguishing between anonymity and pseudonymity - a prescient warning about privacy expectations.