Dont really care. It is irrelevant minutia .Is this the At-Turtushi who died in the 520th year of the Hijra?According to Al-Turtushi in Siraj al-Muluk.You're suggesting that the text of this "pact" originated with Umar (RA), or at least with his approval. I'm simply asking to see some evidence of this from his contemporaries.
I know of several possible chains of transmission depending on what version of the "pact" you prefer.I am not aware of any beyond what I have listed that is sufficient . I would be interested to see any further confirmation you may have .
Dhimmitude is bigotry and compulsion.
You want to prove dhimmitude doesn't exists as a function of Islam?
I dont think you can.