Immutable

Definition:

One of the core principles of blockchain technology and NFTs. Immutable means that something can’t be changed, modified or altered after creation. When an NFT is on the blockchain, its properties, traits, serial number or collection size can’t be altered. It is verifiable, can be audited and tracked forever.

Degen Chat

“Because the ETH blockchain is immutable, artists and collectors can trust in the security of their NFTs.”