8.2 Book-Minting Event (BME)
Book-Minting Event (BME) means when users use 2 of their book NFTs of the same series as the blueprint to ’breed’ and to produce a book NFT bookbox in this progress. As a reference, these two book NFTs would be called ’Vintages (Parents)’. Two vintages would need to be owned (not borrowed) by the user.
Next, the user could choose book NFT, one needs to use the Mint tab, select the book NFT to ’breed’ with it, then click Mint to continue(Each minting event would consume one minting scroll/universal scroll). The Mint machine will begin to work and some time later, the user would receive a book box that could be opened immediately. (Note: When you open a bookbox, you would have different probabilities in getting different qualities of book NFT: the higher the quality of bookbox, the more likely you would get a higher quality book NFT )
Each book NFT could at most have 7 BMEs. (constrained by the minting limit)
The higher the amount of BMEs that the book NFT had completed, the more RCM/WCM it would cost. The minting cost of each book NFT would be calculated individually and then added together as the final minting cost.
Probability of minting out twins
The probability of twins corresponding to minting times 0-6：0%, 1%, 2%, 3%, 4%, 5%, 6%.
The probability of twins produced by two bnfts with minting times of 0 is 0.
The probability of twins produced by two bnfts with minting times 1 and 2 is 1%+2%.
The probability of twins produced by two bnfts with minting times of 6 is 6%+6%.
Book cover upgrade success rate
original quality grade
new quality grade
Probability of upgrade success