Zadok HaKohen, The High Priest

• 1 Chronicles 5:38

Please see this regarding uncertainty of Zadok's origins: "All the information about Zadok’s priestly lineage is thus found in the Chronicler’s account and not in the Deuteronomistic history. As a result, scholars have voiced doubts about Zadok’s family ties. Could it be that his Aaronite ancestry is nothing but a fabrication which seeks to legitimize his office as priest?"
https://www.sots.ac.uk/wiki/zadok/

However DNA evidence indicates Zadok is a descendent of Aaron through Pinchas: "Dr. Karl Skorecki of the Ramban/Technion Medical Center in Haifa, who is renowned for his discovery in 1997 of the Kohen genetic signature (CMH - J1), reported in 2007 that he and his research team have discovered not one but two Cohen Modal Haplotypes, which he called J1 and J2. "Pinchas, the zealot mentioned in the Bible, may be the origin of J2" he suggested.
J2 Cohanim serves as the deep background of the priestly Jewish caste. “The finding of J2 among contemporary Cohanim can lend credence that today’s Cohanim (J1,J2) may be descendents of two different founding dynasties – including coalescence to Pinchas as the founder of J2 Cohanim” concluded Dr. Karl Skorecki.
According to the Holy Scriptures the seed of Zadok is supposed to be countless and measureless. The promise avows that from Zadok seed Hashem will build a continued existence family tree and from this offspring Cohanim will be selected to perform sacrifices on the Beit Hamikdash. The prophet may soon arrive and he will make holy Cohanim, sons of Zadok, and Leviim to minister and safeguard the third Temple, respectively. DNA revealed families from different Cohanim background with the precisely coalescence time allied, in J2 haplogroup, to Zadok. The Zadok Cohanim lineage is composed by 24 families strongly associated to Jewish priest caste, both in Ashkenazim and Sephardim communities. They present a DNA signature in J2 haplogroup that formed a well shaped tree with ramifications, branches and different houses as it should be in the face of of three thousand years of growth.
https://www.familytreedna.com/groups/cohenbrazil/about/background