ICC Signature Registry
The ICC Profile Format Specification details many basic data types that are found in an ICC profile. One of these data types is a signature -- a 32-bit value used as an identification code. There are many types of signatures specified in the ICC profile format specification. Some of these are required to be registered by the ICC, others are optional. However, by registering them it ensures there is no conflict caused by different vendors using the same signature. Vendors who use signatures that have not been registered run the risk that their profiles may be misinterpreted.
Profile creators and/or device manufacturers choose the values they wish to register, and their associated meanings, for the signatures registered. Through this system they can see if any desired signatures are still available for registration. If so, they can then request that the ICC assign that signature to their company.
Two different registries are provided. The first of these contains two signature types, that for a manufacturer and that for the specific device(s) they wish to register. The second contains the signatures of CMMs, and both public and private tags and tag types. This ensures there is no conflict between private and public tags, as well as between private tags.
Registering your signatures
To register a signature first view the appropriate registry below to ensure the signature you wish to register is available. To register a device model signature with the ICC, you must first have a manufacturer signature. To register manufacturer and device signatures device you can follow the instructions for registration via the web site. To register a CMM, tag or tag type contact the ICC Technical Secretary giving your company name, the hex and ASCII values of the signature, and specify whether it is a CMM, tag or tag type you want registered.
To check for availability of CMMs, private tag, or tag type signatures, see the Private and ICC Tag and CMM Registry
To register a private tag or CMM send the details (company name, the hex and ASCII values of the signature, and whether it is a CMM, tag or tag type) to the ICC Technical Secretary.