Spotify - "gid" of Tracks

I see there is a gid for each track on Spotify. As you see in the image, B is the track ID but I don't understand A. Please check the response of the request shown in the previous image here.

Do you know what this gid is and how we can retrieve it?

Thanks in advance

UPDATE: As an example, Spotify calls an API as https://spclient.wg.spotify.com/metadata/4/track/1e763423ad0e4862b20f9dbfdadc2cb7 for the track https://open.spotify.com/track/0VtMV3IYHAu7fyZmqnGE99. as you see the the id at the end of the API URL is 1e763423ad0e4862b20f9dbfdadc2cb7 which is different from the track id (0VtMV3IYHAu7fyZmqnGE99). The response of the API is {"gid": "1e763423ad0e4862b20f9dbfdadc2cb7","name": "Oh Yeah","album": {"gid": "b6a45388cac54953b3fe0f8e0ab7c729","name": "Oh Glory","artist": [{"gid": "e8dba066dc3644b1b69510eb3cdd8a42","name": "Aime Simone"}],"label": "No Start No End","date": {"year": 2023,"month": 5,"day": 5},"cover_group": {"image": [{"file_id": "ab67616d00001e026cddc8afe19c5950b5f6f5b6","size": "DEFAULT","width": 300,"height": 300},{"file_id": "ab67616d000048516cddc8afe19c5950b5f6f5b6","size": "SMALL","width": 64,"height": 64},{"file_id": "ab67616d0000b2736cddc8afe19c5950b5f6f5b6","size": "LARGE","width": 640,"height": 640}]},"licensor": {"uuid": "1b3fb428ae7b41aa97c9b46c5b962d57"},"prerelease_config": {"earliest_reveal_date": {"year": 2023,"month": 5,"day": 4,"hour": 11},"earliest_coverart_reveal_date": {"year": 2023,"month": 5,"day": 4,"hour": 11}}},"artist": [{"gid": "e8dba066dc3644b1b69510eb3cdd8a42","name": "Aime Simone"}],"number": 10,"disc_number": 1,"duration": 122293,"popularity": 41,"external_id": [{"type": "isrc","id": "FR9W12241433"}],"file": [{"file_id": "a0ee4ae82c323cf5e45361670079e6a68f391b2f","format": "OGG_VORBIS_320"},{"file_id": "0d508123a2197901602399756f091ba8225ff781","format": "OGG_VORBIS_160"},{"file_id": "698098f862955a08c9204e9cd723de32ad4e48e2","format": "OGG_VORBIS_96"},{"file_id": "0833e88386b0320aabcc56ab893c1ae157a5fffc","format": "MP4_256_DUAL"},{"file_id": "999bff5d82f078c4d6c12a88ee7401e6cf36c048","format": "MP4_256"},{"file_id": "cca2b23924cc42ed2b8f1efc1c95766c5f26a7c8","format": "MP4_128"},{"file_id": "f80419a11fa42bb9054ef4975bdba2a7c2226077","format": "MP4_128_DUAL"},{"file_id": "41af902734adfc123dba2bb91fa1138c7632af6c","format": "AAC_24"}],"preview": [{"file_id": "b2f08b0f87cdef5489d51588dc61e5b6fd7e5ca2","format": "MP3_96"}],"earliest_live_timestamp": 1683198000,"has_lyrics": true,"licensor": {"uuid": "1b3fb428ae7b41aa97c9b46c5b962d57"},"language_of_performance": ["en"],"original_audio": {"uuid": "87a724f901a34555a86efdc16b65ee9b"},"original_title": "Oh Yeah","artist_with_role": [{"artist_gid": "e8dba066dc3644b1b69510eb3cdd8a42","artist_name": "Aime Simone","role": "ARTIST_ROLE_MAIN_ARTIST"}],"canonical_uri": "spotify:track:0VtMV3IYHAu7fyZmqnGE99","prerelease_config": {"earliest_reveal_date": {"year": 2023,"month": 5,"day": 4,"hour": 11}}}.

The gid probably means something like Global ID or something of that sort. I've done some research (python codebase, JS codebase) and found that this gid is some hexadecimal number which needs to be converted to a base62 number to get the actual ID.

In both codebases the functions used to convert the gid to the ID and then to an URI are called gid2id and id2uri. I've tried both but they either didn't work quite well as expected, meaning they didn't give the desired result or referenced functions that weren't in the codebase, so I've decided to throw together my own quick converter in python:

def gid_to_base62(gid):
base62_charset = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
decimal_number = int(gid, 16)
base62_id = ''

while decimal_number > 0:
    remainder = decimal_number % 62
    base62_id = base62_charset[remainder] + base62_id
    decimal_number = decimal_number // 62

return base62_id

gid = '1e763423ad0e4862b20f9dbfdadc2cb7'
base62_id = gid_to_base62(gid)
print(base62_id) # -> 0VtMV3IYHAu7fyZmqnGE99

Now I have only tested this on 2 example gid's so use this converter with caution.