DOSETA
DOmain SEcurity TAgging (DOSETA) builds upon the success of DKIM by generalizing it for other applications whose payloads have a format similar to that of email, such as the World Wide Web and Usenet.
It enables a signer to affix a domain-level signature to anything that combines a header portion and a body portion, where the header portion contains field names and values. Different applications can have variations on the main theme of DOSETA to suit their needs, such as making assertions about the semantic meaning of a signature, changing the name of the signature field, and adding other application-specific extensions.
The work is based on this Internet Draft by Dave Crocker and Murray S. Kucherawy. It is currently in the API design phase and will move soon into code production, and will be freely available. Development is based at SourceForge.