Validation for PIR DB canary value

We got a feedback from apple side for our new request

PIR server responded, but the canary value is not in the dataset. "www.apple.com/url-filter-test" should be set to 1

So we have validated this using our iOS app pointing to same environment and it is blocking this URL as per expectation as well as we have validated this using below curl

docker exec pir-server sh -lc 'grep -n "www.apple.com/url-filter-test" /pir/data/input.txtpb; ls -l /pir/data/input.txtpb /pir/data/url-0.bin /pir/data/url-0.params.txtpb'; curl -sS -i https://ohttp.protectuswebfilter.com/.well-known/private-token-issuer-directory | sed -n '1,40p'

Please help us, how they are validating this entry is available or not

Validation for PIR DB canary value
 
 
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