Adobe Analytics Server Side Forwarding. Question about Response JSON object definitions.

[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"
        }, 

...

[Tof_Jossic]

@JMK not sure about the 'hr' one and whether or not it always has a '1' value but I believe it might be short for

HttpResponse

That particular extract you provided is about URL destinations.

As for the rest:

id	Destination ID
c	Destination URL
y	Destination Type
ttl	Time to Live

From what I can see in my tests, some of these IDs can be dedicated partner IDs we have in our backend tools, not necessarily something you can cross-check from the UI.