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# System prepended metadata

title: FAQs on minting related issues

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# FAQs on minting related issues

### Q: Is it recommended to create the candy-machine and upload all the NFTs to Arweave way before the launch date? Is there any downside in doing so?

A: 

### Q: BOTs would be able to mint your NFTs when they know the candy machine address. Is there any way that we to hide the address or prevent this from happening?

A:

### Q: How do people find out the candy machine address of a particular project? I'm sure projects won't upload or publicise that anywhere?

A:

### Q: What is the recommended method right now to do whitelist? I have been researching and seems like the only way is to have a list of whitelisted wallets and limit the user on the FE? But similar issue, they can easily bypass FE if they mint directly from the candy machine address

A:

### Q: If we have 10,000 pieces and we want upload in 2 batches each 5,000 using different candy machines but the same wallet account. Would they still be considered the same collection? How do marketplaces validate whether the NFTs belong to the right collection in the above scenario?

A: