I asked ChatGPT to generate a lineage of WWE Champions if it were a legit shoot, based on actual wrestling and MMA credentials.

Lou Thesz (1950 - 1966)
Reign: 5,560 days
How Won: Unified titles in a shoot wrestling match (single-leg Boston Crab, submission).

Karl Gotch (1966 - 1973)
Reign: 2,557 days
How Won: Submitted Thesz with a modified armbar in the second round.

Billy Robinson (1973 - 1978)
Reign: 1,825 days
How Won: Outpointed Gotch in a referee's decision after a 5-round bout.

Antonio Inoki (1978 - 1980)
Reign: 730 days
How Won: TKO’d Robinson with a roundhouse kick in Round 3.

Hiro Matsuda (1980 - 1982)
Reign: 730 days
How Won: Submitted Inoki with a kimura lock in Round 2.

Bob Backlund (1982 - 1984)
Reign: 730 days
How Won: Won by referee's decision after wrestling Matsuda into exhaustion over 5 rounds.

Dan Severn (1984 - 1999)
Reign: 5,479 days
How Won: TKO’d Backlund via ground-and-pound in Round 4.

Kurt Angle (1999 - 2001)
Reign: 730 days
How Won: Outwrestled Severn and submitted him with an ankle lock in Round 2.

Shane McMahon (2001 - 2002)
Reign: 365 days
How Won: Shock TKO of Angle via spinning back elbow in Round 1.
Notes: Angle reportedly underestimated Shane due to his unorthodox style, leading to the upset.

Brock Lesnar (2002 - 2014)
Reign: 4,380 days
How Won: TKO’d Shane McMahon with a German suplex, referee stoppage in Round 1.

Cain Velasquez (2014 - 2016)
Reign: 730 days
How Won: TKO’d Lesnar with a flurry of punches in Round 1.

Shinsuke Nakamura (2016 - 2018)
Reign: 730 days
How Won: KO’d Velasquez with a knee strike in Round 2.

Bobby Lashley (2018 - 2022)
Reign: 1,460 days
How Won: TKO’d Nakamura with ground-and-pound in Round 3.

Matt Riddle (2022 - 2024)
Reign: 730 days
How Won: Submitted Lashley with a rear-naked choke in Round 2.

Gable Steveson (2024 - Present)
Reign: Ongoing
How Won: TKO’d Riddle with a suplex-to-ground-and-pound combo in Round 1.