Can I use "download_id" in receipt to verify unique Apple Account

I found the download_id description in documentation: https://developer.apple.com/documentation/appstorereceipts/responsebody/receipt?changes=latest_minor

download_id
A unique identifier for the app download transaction.
Can I use " download_id" in receipt to verify whether two different receipts are from the Apple Account?

(I found two diffrerent receipts from one Apple Account, these receipts have the same download_id.)


Array
(
    [receipt] => Array
        (
            [receipt_type] => Production
            [adam_id] => 1148465254
            [app_item_id] => 1148465254
            [bundle_id] => "*****************"
            [application_version] => 1
            [download_id] => 79017591726215
            [version_external_identifier] => 832934132
            [receipt_creation_date] => 2019-10-13 04:53:11 Etc/GMT
            [receipt_creation_date_ms] => 1570942391000
            [receipt_creation_date_pst] => 2019-10-12 21:53:11 America/Los_Angeles
            [request_date] => 2019-10-14 02:34:59 Etc/GMT
            [request_date_ms] => 1571020499865
            [request_date_pst] => 2019-10-13 19:34:59 America/Los_Angeles
            [original_purchase_date] => 2017-10-13 02:41:13 Etc/GMT
            [original_purchase_date_ms] => 1507862473000
            [original_purchase_date_pst] => 2017-10-12 19:41:13 America/Los_Angeles
            [original_application_version] => 3
            [in_app] => Array
                (
                    [0] => Array
                        (
                            [quantity] => 1
                            [product_id] =>  "*****************"
                            [transaction_id] => 390000336030035
                            [original_transaction_id] => 390000336030035
                            [purchase_date] => 2019-10-13 04:53:11 Etc/GMT
                            [purchase_date_ms] => 1570942391000
                            [purchase_date_pst] => 2019-10-12 21:53:11 America/Los_Angeles
                            [original_purchase_date] => 2019-10-13 04:53:11 Etc/GMT
                            [original_purchase_date_ms] => 1570942391000
                            [original_purchase_date_pst] => 2019-10-12 21:53:11 America/Los_Angeles
                            [is_trial_period] => false
                        )
                )
        )


    [status] => 0
    [environment] => Production
)

Array
(
    [receipt] => Array
        (
            [receipt_type] => Production
            [adam_id] => 1148465254
            [app_item_id] => 1148465254
            [bundle_id] =>  "*****************"
            [application_version] => 1
            [download_id] => 79017591726215
            [version_external_identifier] => 832934132
            [receipt_creation_date] => 2019-10-13 05:00:40 Etc/GMT
            [receipt_creation_date_ms] => 1570942840000
            [receipt_creation_date_pst] => 2019-10-12 22:00:40 America/Los_Angeles
            [request_date] => 2019-10-14 02:35:28 Etc/GMT
            [request_date_ms] => 1571020528537
            [request_date_pst] => 2019-10-13 19:35:28 America/Los_Angeles
            [original_purchase_date] => 2017-10-13 02:41:13 Etc/GMT
            [original_purchase_date_ms] => 1507862473000
            [original_purchase_date_pst] => 2017-10-12 19:41:13 America/Los_Angeles
            [original_application_version] => 3
            [in_app] => Array
                (
                    [0] => Array
                        (
                            [quantity] => 1
                            [product_id] =>  "*****************"
                            [transaction_id] => 390000336031381
                            [original_transaction_id] => 390000336031381
                            [purchase_date] => 2019-10-13 05:00:40 Etc/GMT
                            [purchase_date_ms] => 1570942840000
                            [purchase_date_pst] => 2019-10-12 22:00:40 America/Los_Angeles
                            [original_purchase_date] => 2019-10-13 05:00:40 Etc/GMT
                            [original_purchase_date_ms] => 1570942840000
                            [original_purchase_date_pst] => 2019-10-12 22:00:40 America/Los_Angeles
                            [is_trial_period] => false
                        )
                )
        )
    [status] => 0
    [environment] => Production
)
Did you ever find the answer to this question? I have been wondering the same thing.

I don't believe it is possible because it appears as though you have to use the original transaction id in in-app purchases to link two devices. I also am seeing a lot of receipts with a download_id = '9999', so they don't event appear to be unique. I just don't know if this is some sort of scam, however.

Best,
Jaime

I would be very very interesting in the answer for this. Its a struggle to fully understand what download_id means.

My theory is that download_id could appear on multiple receipts if they belong to the same account. This seems to be the case because the receipt.original_purchase_date is identical in both receipts. Many in-app purchases - One app purchase/download_id

A unique identifier for the app download transaction.

Can I use "download_id" in receipt to verify unique Apple Account
 
 
Q