Patent ID: 11952158
Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
Field: Handling (Mechanical engineering)
Classification: CPC B  G  H  Y | IPC B  G

Claim 14:
15. A method, performed by a food packaging machine, for tracking food data transactions in the food packaging machine, wherein the food packaging machine comprises a hardware data processor, wherein the method comprises:
receiving, from a packaging material supply module, a packaging material data record including information identifying a batch of packaging material currently supplied by the packaging material supply module to a filling module;
receiving, from a food supply module, a food data record including information identifying a batch of food currently supplied by the food supply module to the filling module;
creating a food data transaction derived from data comprising:
a time stamp identifying the time at which the filling module filled the supplied food into a package formed from the supplied packaging material,
a machine data record identifying at least one of the filling module or the food packaging machine,
at least a portion of the food data record, and
at least a portion of the packaging material data record, and
data relating to an earlier food data transaction created on the same food packaging machine;

sending the food data transaction to a network data processing system for the food data transaction to be appended to a packaged food production data hash tree; and
verifying at least one of the food data record or the packaging material data record with the packaged food production data hash tree before creating the food data transaction.