Token
From ACT Wiki
1. Currency - money.
An object - such as a coin, banknote or digital equivalent - whose validity can be identified.
Invalid tokens include counterfeit physical currency.
Invalid physical tokens are ones that have already been spent.
The alternative to token-based money systems is an account-based system.
2. Authentication.
A physical item held by a user of a security system, as an element of identifying them and confirming their authority to use the system.
