See app_item_id.
Generated by App Store Connect and used by the App Store to uniquely identify the app purchased. Apps are assigned this identifier only in production. Treat this value as a 64-bit long integer.
The app's version number. The app's version number corresponds to the value of CFBundleVersion (in iOS) or CFBundleShortVersionString (in macOS) in the Info.plist. In production, this value is the current version of the app on the device based on the receipt_creation_date_ms. In the sandbox, the value is always '1.0'.
The bundle identifier for the app to which the receipt belongs. You provide this string on App Store Connect. This corresponds to the value of CFBundleIdentifier in the Info.plist file of the app.
A unique identifier for the app download transaction.
Optional
expiration_The time the receipt expires for apps purchased through the Volume Purchase Program, in a date-time format similar to the ISO 8601.
2021-03-01 07:00:00 Etc/GMT
Optional
expiration_The time the receipt expires for apps purchased through the Volume Purchase Program, in UNIX epoch time format, in milliseconds. If this key is not present for apps purchased through the Volume Purchase Program, the receipt does not expire. Use this time format for processing dates.
1616411598724
Optional
expiration_The time the receipt expires for apps purchased through the Volume Purchase Program, in the Pacific Time zone.
2021-01-01 00:00:00 America/Los_Angeles
Optional
in_An array that contains the in-app purchase receipt fields for all in-app purchase transactions.
The version of the app that the user originally purchased. This value does not change, and corresponds to the value of CFBundleVersion (in iOS) or CFBundleShortVersionString (in macOS) in the Info.plist file of the original purchase. In the sandbox environment, the value is always '1.0'.
The time of the original app purchase, in a date-time format similar to ISO 8601.
2021-03-01 07:00:00 Etc/GMT
The time of the original app purchase, in UNIX epoch time format, in milliseconds. Use this time format for processing dates.
1616411598724
The time of the original app purchase, in the Pacific Time zone.
2021-01-01 00:00:00 America/Los_Angeles
Optional
preorder_The time the user ordered the app available for pre-order, in a date-time format similar to ISO 8601. Only present if the app was ordered through pre-order.
2021-03-01 07:00:00 Etc/GMT
Optional
preorder_The time the user ordered the app available for pre-order, in UNIX epoch time format, in milliseconds. This field is only present if the user pre-orders the app. Use this time format for processing dates.
1616411598724
Optional
preorder_The time the user ordered the app available for pre-order, in the Pacific Time zone.
2021-01-01 00:00:00 America/Los_Angeles
The time the App Store generated the receipt, in a date-time format similar to ISO 8601.
2021-03-01 07:00:00 Etc/GMT
The time the App Store generated the receipt, in UNIX epoch time format, in milliseconds. Use this time format for processing dates. This value does not change.
1616411598724
The time the App Store generated the receipt, in the Pacific Time zone.
2021-01-01 00:00:00 America/Los_Angeles
The type of receipt generated. The value corresponds to the environment in which the app or VPP purchase was made.
The time the request to the verifyReceipt endpoint was processed and the response was generated, in a date-time format similar to ISO 8601.
2021-03-01 07:00:00 Etc/GMT
The time the request to the verifyReceipt endpoint was processed and the response was generated, in UNIX epoch time format, in milliseconds. Use this time format for processing dates.
1616411598724
The time the request to the verifyReceipt endpoint was processed and the response was generated, in the Pacific Time zone.
2021-01-01 00:00:00 America/Los_Angeles
An arbitrary number that identifies a revision of your app. In the sandbox, this key's value is '0'.
The decoded version of the encoded receipt data sent with the request to the App Store.
Link
https://developer.apple.com/documentation/appstorereceipts/responsebody/receipt