Dragi Mihal i Hkolvik,
Hvala vam što ste se obratili. Cenimo priliku da razjasnimo ovo pitanje.
U Iabbi Casinu, kripto depoziti se obrađuju odmah nakon što se pojave na blokčejnu, čak i pre nego što dobiju mrežne potvrde. Ovo omogućava igračima da počnu da igraju bez odlaganja. Međutim, pošto se transakcije mogu videti pre nego što budu potvrđene, postoji potencijalni rizik od eksploatacije , gde bi igrač mogao da pokuša da poništi ili poništi svoj depozit pre nego što bude potvrđen.
U ovom slučaju, naš sistem je otkrio da je depozit koji je napravio Hcolvick bila transakcija dvostruke potrošnje . To znači da je prvobitna transakcija, koja je pripisana igračevom računu, kasnije zamenjena drugom transakcijom koristeći iste unose, čime je početni depozit postao nevažeći. Kao rezultat toga, svi dobici generisani od ovog depozita su morali da budu uklonjeni.
@Hcolvick , pomenuli ste da ste samo povećali naknadu za transakciju. Međutim, da je ovo urađeno putem standardne metode zamene uz naknadu (RBF) , transakcija bi zadržala isti heš ID transakcije . U ovom slučaju, potvrđena transakcija je imala drugačiji heš ID , što ukazuje da je umesto toga emitovana nova transakcija, što je jasan znak pokušaja dvostruke potrošnje .
Pored toga, primetili smo da ste kasnije uplatili poseban depozit na istu adresu, koja je ispravno obrađena pod novim hešom transakcije . Taj depozit je knjižen na vaš račun tek nakon što su dobici sa nevažećeg depozita uklonjeni , a vi ste bili u mogućnosti da uspešno povučete sredstva sa tog važećeg depozita . Ovo dalje potvrđuje da početni depozit nije bio važeći i da nije ostao na blokčejnu.
@Michal , da bismo potvrdili sve ovo, poslali smo vam e-poštom dokaz o pokušaju dvostruke potrošnje , uključujući relevantne detalje transakcije u blok lancu. Preporučujemo vam da pregledate ove informacije.
Razumemo da igrači možda nisu uvek svesni kako funkcionišu blokčejn transakcije, ali moramo da obezbedimo da se za igru koriste samo validni depoziti . Naš kazino funkcioniše po principu da igrači moraju da koriste legalna sredstva , a depozit koji je kasnije poništen na blokčejnu ne ispunjava ovaj zahtev.
Ako je potrebno dodatno pojašnjenje, rado ćemo pregledati sve dodatne detalje o transakciji koje je dao igrač.
Srdačan pozdrav,
James Peterson
Iabbi Casino
Dear Michal and Hcolwick,
Thank you for reaching out. We appreciate the opportunity to clarify this matter.
At Yabby Casino, crypto deposits are processed instantly once they appear on the blockchain, even before receiving network confirmations. This allows players to start playing without delays. However, because transactions can be seen before they are confirmed, there is a potential risk of exploitation, where a player could attempt to reverse or invalidate their deposit before it gets confirmed.
In this case, our system detected that the deposit made by Hcolwick was a double-spend transaction. This means that the original transaction, which was credited to the player's account, was later replaced by another transaction using the same inputs, making the initial deposit invalid. As a result, any winnings generated from this deposit had to be removed.
@Hcolwick, you mentioned that you only increased the transaction fee. However, if this was done through a standard Replace-by-Fee (RBF) method, the transaction would have retained the same transaction hash ID. In this case, the confirmed transaction had a different hash ID, indicating that a new transaction was broadcast instead, which is a clear sign of a double-spend attempt.
Additionally, we noticed that you later made a separate deposit to the same address, which was processed correctly under a new transaction hash. That deposit was credited to your account only after the winnings from the invalid deposit were removed, and you were able to successfully withdraw the funds from that valid deposit. This further confirms that the initial deposit was not valid and did not remain on the blockchain.
@Michal, to validate all of this, we have sent proof of the double-spend attempt to you via email, including the relevant blockchain transaction details. We encourage you to review this information.
We understand that players may not always be aware of how blockchain transactions work, but we must ensure that only valid deposits are used for gameplay. Our Casino operates under the principle that players must use legal funds, and a deposit that is later invalidated on the blockchain does not meet this requirement.
If further clarification is needed, we are happy to review any additional transaction details provided by the player.
Best Regards,
James Peterson
Yabby Casino
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