> ## Documentation Index
> Fetch the complete documentation index at: https://hedera-0c6e0218-mintlify-4a9eb0b1.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# FileID

> Hedera protobuf reference for the FileID message, identifying a file stored on the Hashgraph network using shard, realm, and file number values.

The ID for a file

| Field      | Description                                       |
| ---------- | ------------------------------------------------- |
| `shardNum` | The shard number (nonnegative)                    |
| `realmNum` | The realm number (nonnegative)                    |
| `fileNum`  | A nonnegative File number unique within its realm |

####