What data is it important to store after creating an NFT? Migrating to the new SDK.

[cprcrack]

I'm migrating from the old SDK to the new one, which I'm really liking (much better structured), but I'm having to rewrite some stuff and want to learn about new data that I'm getting.

After creating a very basic NFT like this:

const task = metaplex.nfts().create({ ... });
const output = await task.run();

I have identified a lot of different data that is returned:

• A: output.response.signature, I understand this is the blockchain transactionId where this operation happened.

• B: output.mintSigner.publicKey, the mintAddress or public address of the NFT.

  • B.1: Duplicated in output.nft.mintAddress
  • B.2: Duplicated in output.nft.mint.address

• C: output.mintSigner.secretKey, what can this private key be used for? Is there any good reason to store it for later usage?

• D: output.metadataAddress, the address of the Account used for storing the metadata.

  • D1: Duplicated in output.nft.address
  • D2: Duplicated in output.nft.metadataAddress

• E: output.masterEditionAddress, the mint authority address, but what is this address really, is it needed to mint new editions or alike? So if you only care about creating single NFTs or master editions it serves no purpose?

  • E1: Duplicated in output.nft.edition.address
  • E2: Duplicated in output.nft.mint.mintAuthorityAddress

• F: output.tokenAddress, is this the token account that holds the newly created NFT?

• G: output.updateAuthorityAddress, the public key of the keypair that allows updating the NFT metadata.

Could someone review if my assumptions are correct for all points and particularly give some hints about C and E? Huge thanks in advance, this new SDK seems to be much easier to use than the old one!