Content.isrc

The International Standard Recording Code of the recording, as defined by ISO 3901. Added in OpenRTB 2.4 for music and audio.

CurrentstringOptionalSince 2.4

Field facts

An ISRC identifies one recording, so it lets buyers recognize the same track across stations and services.

Where the field sits in a payload, with everything else left out:

{
  "id": "req-1",
  "app": {
    "content": {
      "isrc": "USRC17607839"
    }
  }
}

Added in OpenRTB 2.4, and present in the latest snapshot. The table shows how each version's spec text types the field.

Versions	Type in the spec	Required	Deprecated
2.4	string	No	No
2.5 to 2.6-202606	string	No	No