Under the hood, IrisDB uses events like this: { "content": "\"Test Document\"", "created_at": 1713958806, "id": "4ade41ea3f724dd944b6e861882015ea355ad262879e32970482b64806bd91d8", "kind": 30078, "pubkey": "ec1c45f69d463143ac1882c52b27db551342a24add13810b5d98b96298e4d9e1", "sig": "cbc373003989470414cba8660e26e0b5902ec8fea00d54ef4e38fdfc93631a0b3fd1bb53203a9f60003e760d8d4ee3ecebbd676c2529d3c753cbf3714d511421", "tags": [ [ "d", "/apps/docs/documents/868d7ed9-1100-4cae-be58-16a7d248afc7/name" ], [ "f", "/apps/docs/documents/868d7ed9-1100-4cae-be58-16a7d248afc7" ] ] } "d" tag is the "file name". It's a replaceable event, so new writes to the path overwrite the previous value. "f" is the "directory name" where the file resides. "#f" nostr filter can be used to list the files in a directory.