Where can I find the CA certificate for the Hue bridge?

[callionica]

developer.meethue.com documentation for the Sync Box API has really nice docs on verifying the HTTPS certificate of the sync box and it has a link to the sync box CA certificate (at https://developers.meethue.com/wp-content/uploads/2020/01/hsb_cacert.pem_.txt).

But I need the CA cert for "root-bridge" the issuer of the Hue bridge HTTPS certificates. Can you provide a link so that I can correctly pin and verify Hue bridge HTTPS certificates. Thanks!