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  • posted a message on Provably Fair Repack Idea
    I developed this theoretical system after watching some videos of people opening repacks and, oh would you look at that, getting a black lotus. Also this addresses repacks who claim to have those high value cards in them when anyone could claim that falsely. This system can prove that in these lottery type repacks that a few high value packs were actually created and buyers had a chance to get one. Without a system like this, the seller can create exactly 0 packs with high value cards while a youtuber reviews the pack and claim to get some very valuable card. I guess this is sort of a challenge to people who sell repacks. If you don't implement a system like this, you have no way to prove even if someone bought a large number of the repacks that they could get anything good.

    Again, I don't buy them and never will, although I don't enjoy seeing other people buy them when the amount of fraud/manipulation seems so high.
    Posted in: Magic General
  • posted a message on Provably Fair Repack Idea
    I had an idea where a repack seller could have a system where there is proof a buyer had a chance to get a super rare card in a repack. This is loosely based on systems I've seen used for lottery type systems online.

    I don't buy or sell repacks, but I wanted to share this idea to see what others in the community thought. A variance of this system would assure the buyer that they at least had a chance at a value card.


    The following list of repacks is posted publicly when a run of repacks is created:


    Pack Number
    Code
    Themed Code

    1
    3D0EE1306568E071850C8E887BE81B3F


    2
    024F8F9DC149ABCFAF46351D5D777C72


    3
    D2A27A8BA01CE72A1BA7216F33B09F1F



    Buyers can chose which pack they want from the above table.

    Themed codes give a more friendly aesthetic and follow replacement of A->F 0->9 with mana symbols Plains through Waste and 0 through 9 colorless.

    We maintain the following master list:


    Pack Number
    Card List
    Secret
    Code

    1
    Birds of Paradise,Island,Lightning Bolt
    Jc$6sGt7W^
    3D0EE1306568E071850C8E887BE81B3F

    2
    Black Lotus,Mox Pearl,Mox Emerald
    Z4ztn!4ccN
    024F8F9DC149ABCFAF46351D5D777C72

    3
    Swamp,Mountain,Island
    K?2$3sV=?E
    D2A27A8BA01CE72A1BA7216F33B09F1F


    In each pack, the buyer gets their pack's card list along with their Secret value and Code (which can be independently generated to verify).

    The code value is generated using a modern hashing function, in the above examples it works as follows:
    Md5(Card List,Secret) => Code
    Md5(Black Lotus,Mox Pearl,Mox Emerald,Z4ztn!4ccN) = 024F8F9DC149ABCFAF46351D5D777C72

    When the packs are sold out, the packs with the rare cards can have their Card List and Secret revealed to provably show that they contained rare cards all along and a buyer had the chance to pick it.


    Posted in: Magic General
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