Method and apparatus for evidencing a transaction using location information

An apparatus (2) for evidencing an occurrence of a transaction is provided that includes a tamper indicating housing (4), a processing unit (8) provided within the tamper indicating housing (4), and a cryptographic module (16) also provided within the tamper indicating housing (4). The processing unit (8) is adapted to: (i) determine current location information indicating a current location of the apparatus, (ii) obtain transaction information relating to the transaction, and (iii) compile a data block including at least the current location information and the transaction information. The cryptographic module (16) is adapted to generate cryptographic evidence based on the data block. The processing unit (8) may also be adapted to obtain current time information, and the data block may further include the current time information. The processing unit (8) may also be adapted to obtain user authentication information, such as biometric information, and the data block may further include the user authentication information.