JoJo's Bizarre Adventure uses arc-level chapter data — chapters shown cover the full arc containing the episode. This JSON covers only the 2012 TV series (26 episodes), which adapts Parts 1 and 2 of the JoJo manga. Part 1 (Phantom Blood) covers roughly manga chapters 1–44 across episodes 1–9, and Part 2 (Battle Tendency) covers roughly chapters 45–113 across episodes 10–26. The API data includes further sequel seasons (Stardust Crusaders, Diamond is Unbreakable, Golden Wind) which are separate MAL entries and are not included here per the single-entry scope. The AniList manga data provided references Part 7 Steel Ball Run (95 chapters, 24 volumes), which is unrelated to the anime seasons listed; manga chapter estimates here are based on known JoJo Part 1 and Part 2 chapter counts from the original serialisation. Confidence is medium due to approximate chapter boundary estimates.