How exactly PKHeX Encounter Database works? + Legality Question

[Sosa]

Where exactly do the Pokémon from the PKHeX Encounter Database come from? I've noticed that the database has data for Pokémon not present in the Event Gallery section here or in the EventsGallery repository on GitHub. To name a few, the Poképark Jirachi, Hadō Regirock, and the PCNY "Wish" eggs for Chansey and Lickitung. Are the Pokémon in the Encounter Database 100% legitimate?

I also have another question regarding legality. PKHeX shows that some Pokémon, even from the Event Gallery, are illegal (Hadō Registeel, for example). I also noted that it marks every Pokémon from the "Gather More Pokémon!" campaign (PCJP gift) as illegal, even though I obtained them from the link below. However, the ones in the PKHeX Encounter Database are all marked as legal.

 

[Kaphotics]

PKHeX/PKHeX.Core/Legality/Encounters/Data/Gen3/EncountersWC3.cs at 720ac7ead717d2d1ab1f210638d01001930a9760 · kwsch/PKHeX

[Sosa]

20 hours ago, Kaphotics said:

PKHeX/PKHeX.Core/Legality/Encounters/Data/Gen3/EncountersWC3.cs at 720ac7ead717d2d1ab1f210638d01001930a9760 · kwsch/PKHeX

I'm not a code expert, but I think I understand. The Pokémon from the "Gather More Pokémon!" campaign are marked as illegal because PKHeX doesn't recognize them, not because they are actually illegal.

Regarding the Pokémon that are not in the event gallery, like the Poképark Jirachi, I assume you know how they were generated. Therefore, you don't necessarily need a collector to share an actual Pokémon to create a legality checksum.

About the Registeel, though: does this mean that the one in the event gallery here is hacked? I also noticed on GitHub that Chansey and Lickitung were removed from the repository after a commit named something like "Remove Hacked Pokémon." However, they are still in the event gallery here and are marked as illegal on PKHeX. I presume this means there are no official Chansey and Lickitung eggs publicly available anymore.

[ICanSnake]

1 hour ago, Sosa said:

I'm not a code expert, but I think I understand. The Pokémon from the "Gather More Pokémon!" campaign are marked as illegal because PKHeX doesn't recognize them, not because they are actually illegal.

Regarding the Pokémon that are not in the event gallery, like the Poképark Jirachi, I assume you know how they were generated. Therefore, you don't necessarily need a collector to share an actual Pokémon to create a legality checksum.

About the Registeel, though: does this mean that the one in the event gallery here is hacked? I also noticed on GitHub that Chansey and Lickitung were removed from the repository after a commit named something like "Remove Hacked Pokémon." However, they are still in the event gallery here and are marked as illegal on PKHeX. I presume this means there are no official Chansey and Lickitung eggs publicly available anymore.

From what I've seen, the only Pokepark Jirachi that are authentic is one set obtained by Rabby250 and is the basis on what the Bulbapedia information was updated with. The issue with it, is that he had already Pal Parked both of his Jirachis to gen 4 before sharing them to certain traders online with trade restrictions. So even from the Bulbapedia information, the held item is not known for it. It's known what PID algorithm they have, BACD_R_A, but the only reason it's not in the event galleries is because it hasn't been preserved in gen 3 and no one has shared an authentic one for the public.

The Wish Chansey and Lickitung egg have invalid abilities which I have personally noticed for years and have been marked as valid for years by PP and Digiex, but I don't have an idea on where they came from or who obtained them. I remember asking Sabre about it when he made them public but I wasn't given any usernames for who donated them. We know how they're generated and they're easy to generate, Goppier and UndeadxReality have already created custom distributions to generate these eggs. But for public authentic donations, no one has really donated any.

The Hadou Registeel is hacked/modified based on current PID algorithms. It came from the same place and same donation as the Regice which is marked as valid, and it's weird since you would expect the donator to either hack both of them or donate 2 authentic Pokemon, not hack one and donate another authentic one. The Hadou Regis are really something we need more donations for so the PID algorithms and data can be compared.

[Sosa]

Thank you for the information, you've cleared up my doubts. I also searched for the people you mentioned who recreated the distributions and came across Groppier's channel and watched the videos, amazing work they did! Hopefully, some kind person can contribute with these Japanese event Pokémon one day. Thanks again, ICanSnake!