| 摘要 |
A security marker is disclosed which may include (i) a first level of the marker which is an indicator, and (ii) a second level of the marker which is a characteristic fingerprint, wherein the marker is configured such that an identification of the first level of the marker (e.g., the identification of the indicator or its nature) provides information to identify the second level of the marker (e.g. to identify a nature or characteristic of the second level of the marker such as to identify that the second level of the marker is a fingerprint). Therefore, advantageously, the identification of the first level of the marker may provide key information for identifying the what the second level of the marker may be and/or a characteristic of that second level, e.g., a type of fingerprint being used. |
