Badge images report the certificate status at the moment they are fetched
BackProbeIntegrity Authority
Sign in Get certified

Verify a certificate

Every certificate number resolves to a live record. A badge that matches no record means nothing.

Certificate lookup

Twelve characters, printed under the badge wordmark.

Dashes are added automatically. Letters are not case sensitive.

Checking without the number

Scan the QR code on the certificate or badge with any camera app. It points at https://backprobe.org/verify/ followed by the number. If a QR code sends you anywhere else, the certificate is not ours.

Automated checks

Launchers and modpack tooling can query the read-only endpoint directly:

GET https://backprobe.org/api/verify/BP-7HTM-9QK2-3WNX

{
  "status": "valid",
  "certified": true,
  "build": { "sha256": "9f2c41ae7b0d4e8a...." },
  "expires_at": "2027-02-14 09:31:00"
}

No key required. Rate limited to 120 requests per five minutes per address.

If something looks wrong

If a mod is displaying a badge you cannot verify, or a certified build behaves maliciously, file an abuse report. Reports against a live certificate go to the front of the queue.