A computer-implemented method for preparing an original marked object with a higher level of security against adulteration and counterfeiting comprising the following stages: a) Preparation of an original deterministic design by a computing device ; b) Laser marking of the original deterministic design , prepared in Step a), on the surface of an object, embodied as an original marked deterministic design on an original marked object , wherein the laser marking of the original deterministic design , obtaining the original marked deterministic design , is performed on a portion of the original marked object , wherein the said portion is comprised of one or more materials selected from plastics, metal alloys and metals, for example, gold, silver, platinum and palladium, wherein said laser marking of the original deterministic design is executed by a device for controlling a laser beam; c) At least one picture taken of the original marked deterministic design with an optical reader in a computing device , obtaining at least one image of the original marked deterministic design ; d) Association of at least one item of information with at least one image of the original marked deterministic design , obtaining at least one descriptor for the original marked deterministic design ; characterized in that it comprises the further following stage: e) Storage of at least one item of information associated with the image of the original marked deterministic design in a database , wherein the stored information comprises at least one descriptor for the original marked deterministic design , at least one identification for the database record and one or more coordinates of the original deterministic design . a) Preparation of an original deterministic design by a computing device ; b) Laser marking of the original deterministic design , prepared in Step a), on the surface of an object, embodied as an original marked deterministic design on an original marked object , wherein the laser marking of the original deterministic design , obtaining the original marked deterministic design , is performed on a portion of the original marked object , wherein the said portion is comprised of one or more materials selected from plastics, metal alloys and metals, for example, gold, silver, platinum and palladium, wherein said laser marking of the original deterministic design is executed by a device for controlling a laser beam; c) At least one picture taken of the original marked deterministic design with an optical reader in a computing device , obtaining at least one image of the original marked deterministic design ; d) Association of at least one item of information with at least one image of the original marked deterministic design , obtaining at least one descriptor for the original marked deterministic design ; characterized in that it comprises the further following stage: e) Storage of at least one item of information associated with the image of the original marked deterministic design in a database , wherein the stored information comprises at least one descriptor for the original marked deterministic design , at least one identification for the database record and one or more coordinates of the original deterministic design . <EOS>