Authentication of a batch/container and/or finished articles to e.g. receive a drug and vaccine, comprises generating identification code, sparing in/on the container wall and a marking zone, and reproducing the code. The process further comprises generating an extrinsic identification code to fill the containers of the batch, and identifying the finished article. Authentication of a batch/container and/or finished articles to e.g. receive a drug and vaccine, comprises generating identification code, sparing in/on the container wall and a marking zone, and reproducing the code. The process further comprises generating an extrinsic identification code to fill the containers of the batch, and identifying the finished article. The code is reproduced to remove/modify the substrate constitutive of the wall. The intrinsic and extrinsic marking zones are not superimposed. The zone (4) is spared on the internal face (3a) of the container wall (3). The extrinsic marking zone consists of a hollow surface on the external face (3b) of the wall. The container is a syringe, bottle, cartridge, tube and a plate.