Interestingly camlistore does that: - First you create a "random" blob that has an identity (called a permanode), that you sign with your private key. It acts

Interestingly camlistore does that: - First you create a "random" blob that has an identity (called a permanode), that you sign with your private key. It acts as an "anchor" you can link to. - Then you sign a piece of json that references the permanode and the content you wish; it effectively means "I, owner of key XXX, claim that permanode called 12345 now references value ABCD". - To get the content of a permanode, you search all modifications and merge them to obtain the final value