Which 1075 document (set of propositions) is linked to papal authority claims during the Gregorian Reform?

The story behind the answer

Written in 1075 and entered into Pope Gregory VII’s register, this set of 27 propositions boldly asserted sweeping papal prerogatives: supremacy over all bishops, the right to depose emperors, to convene councils, to judge appeals, and even to release subjects from oaths to unjust rulers. It crystallized the Gregorian Reform’s claim that spiritual authority outranks temporal power.

Its appearance helped ignite the Investiture Controversy with Henry IV, culminating in the dramatic penance at Canossa (1077). Scholars debate whether it was a formal decree or a working memorandum, but its programmatic clarity made it a touchstone for medieval Church-State relations and a milestone in the centralization of papal authority.