Drop your Diddy Kong Racing cartridge dump below and this page will tell you exactly which release it is, and whether Golden Balloon can run it.
Your file never leaves this device. It is read in the page and examined in memory. There is no upload, and this page contacts nothing — you can turn your network off first and it will work exactly the same.
The cartridge header identifies the release, and the checksum
pair in it covers the whole cartridge, so a renamed or re-headered file is still
recognised for what it is. A byteswapped .v64 or .n64
dump is converted to plain big-endian .z64 order first — the same
conversion the game does when it loads — so all three forms give the same
answer. The full-image SHA-256 is then compared against the reference dump for
supported releases, which is what catches a copy that is subtly damaged.