BoogerMan
Indeed: positive or convincing proof is surely needed to establish the simple fact that JW's are indeed the True Religion in accordance with the historical basis for the Early Church as described in the Acts of the Apostles. Note that such was in accordance with 'convincing or positive proofs' - Acts 1:3.
Thus, modern-day Christians identified as Jehovah's Witnesses can testify or demonstrate such clear and demonstrable evidence as follows:
Fulfillment of Bible prophecy
Modern-day history prior to and subsequent to 1914 CE
Bible chronology establishes 1914 CE.
These three things form what the said scholar has termed an ' eschatological triennium' consisting of the key dates of 1914, 1918 and 1919 CE all based on careful exegesis and eisegesis of the Holy Scriptures.
Enjoy!!!
scholar JW emeritus