Record the actual serial numbers of a Hedera NFT batch mint

A mint request identifies the collection and supplies metadata for the new instances. Guessing serial numbers from the last visible NFT can misattribute assets when another mint runs concurrently.

Retain the requested metadata sequence

For a non-fungible TokenMintTransaction, populate the metadata array and omit the fungible amount. The SDK excerpt constructs an unsigned request. Preserve the ordered byte strings and the transaction ID before gathering the required supply and payer signatures.

const tx = new TokenMintTransaction()
  .setTokenId(collectionId)
  .setMetadata([Buffer.from("ipfs://first"), Buffer.from("ipfs://second")]);

Bind your inventory to the successful receipt

Read the serial numbers returned in the mint receipt. Record each NFT by collection token ID and returned serial, then verify the metadata for each instance if the local order mapping matters. Minted instances begin in the token treasury. If submission times out, recover the original receipt before attempting a second mint for the same intended items.

Sources