Server Side Forwarding Response JSON Question regarding Destination URLs

[JMK]

I am currently debugging AAM Destination URL implementations and how they behave with Analytics Server Side Forwarding.

Can anyone help me understand what "hr" and "id" represent in the response JSON shown below?  Also, why does the "id" field have a timestamp appended to it?

Thank you in advance for your help.

Edit: I am not sure why every instance of the number 1 appears enlarged in the code block below.

if (s_c_il[1].doPostbacks)
    s_c_il[1].doPostbacks({
        "dests": [{
            "hr": 1,
            "id": "3098122-1594330662|3098123-1594330662|3265774-1594330662|3265775-1594330662",
            "y": "img",
            "c": "https://googleads.g.doubleclick.net/pagead/viewthroughconversion/XXXXXXX/?guid=ON&;script=0&data=aam=16382040;16382114;16382040;16382114"
        }, {
            "hr": 1,
            "id": "3139219-1594330662",
            "y": "img",
            "c": "https://www.facebook.com/tr/?id=XXXXXXX&ev=Purchase&cd[segID]=16460837&cd[brand]=XXXXXXX&noscript=1"
        }, 

...

[Ankita_Sodhi]

Hello @JMK ,

This response is a standard to share data from AAM to AA.

Dests parameter will be present whenever there is any URL destination being returned based on the AA request data set.

As per my knowledge, HR is used for numbering the calls and ID is to show the IDs that have been synced with 3rd party data partner along with the timestamp parameter. Again, these are for internal purposes/usages.

As per your query, you are debugging URL destinations, so is there any particular issue/scenario that you would like to discuss?