I want to delete an NFT I minted or purchased. Where is the delete button?
Because the blockchain is immutable and permanent, you can't undo a transaction once it has occurred. When an NFT is minted, it is added to the blockchain and cannot be removed, even by the original creator. Therefore it is impossible to delete a token from the chain.
OK, so what can I do to get rid of an NFT I don't want anymore?
However, you can still move your NFTs around in a way that may seem like deleting them. You can 'burn' tokens by sending (transferring) them to a 'dead' address, which is an address that is mathematically impossible to control, such as 0x000000000000000000000000000000000000dead.
Here is a list of dead addresses you can use. Transfer to one of these addresses anytime you want to get rid of an NFT.
and so on...
NOTE: Due to a limitation of the Loopring Layer 2, eventually the most popular dead addresses will become full. When this occurs, simply move to another address on this list or generate your own by manually typing in a mathematically impossible address similar to these.
What makes an address mathematically impossible to control?
Ethereum addresses are generated using a math equation, in a way that each address will be a sequence of seemingly random numbers and letters. However, that sequence is highly sensitive, and adjusting just one digit or letter will break the equation, so the address will no longer be controllable by any private key - making it a 'dead' address. The only requirement is you must keep within the hexadecimal character set, which includes numbers 0-9 and letters a-f. You cannot use any letters above f in the alphabet or the address will be invalid. So, in this way, you can create a new dead address simply by adjusting an existing address by one digit.