Which of the following is NOT a key characteristic of Bitcoin?

The characteristic of centralized control does not align with the core principles of Bitcoin. Bitcoin operates on a decentralized network where the control is distributed among all participants rather than being governed by a single entity. This decentralization is fundamental to Bitcoin's functioning, allowing it to operate without the need for a central authority, such as a bank or government.

In contrast, Bitcoin is recognized as a token of value, represents a decentralized public ledger (the blockchain), and incorporates pseudonymity, allowing users to transact without revealing their identities directly. Each of these features reflects the innovative aspects of Bitcoin designed to facilitate secure and private peer-to-peer transactions. Therefore, the absence of centralized control is a significant characteristic that truly defines Bitcoin, making it a revolutionary form of digital currency.