The ad system doesn't publish a readable sellers.json, so nobody can verify these lines. That's the ad system's gap, not the app's, so no points are deducted.
Evidence (24)
line 17 loopme.com, 21009, DIRECT, 6c8d5f95897a5a3b
→ sellers_json: HTTP 403 to automated requests
line 21 pubnative.net, 1018060, RESELLER, d641df8625486a7b
→ sellers_json: HTTP 403 to automated requests
line 41 facebook.com,1932267143686497,DIRECT,c3e20eee3f780d68
→ sellers_json: returns a web page, not a sellers.json file
line 45 openx.com,561124960,RESELLER,6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 46 openx.com,565414088,DIRECT,6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 65 smaato.com, 1100053415, RESELLER, 07bcf65f187117b4
→ sellers_json: HTTP 403 to automated requests
line 69 smaato.com,1100057464,RESELLER,07bcf65f187117b4
→ sellers_json: HTTP 403 to automated requests
line 78 openx.com, 540709535, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 79 smaato.com, 1100057947, RESELLER, 07bcf65f187117b4
→ sellers_json: HTTP 403 to automated requests
line 80 zetaglobal.net, 989, RESELLER
→ sellers_json: HTTP 404
line 81 appnexus.com, 8035, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403 to automated requests
line 82 loopme.com, 11656, RESELLER, 6c8d5f95897a5a3b
→ sellers_json: HTTP 403 to automated requests
line 83 pubnative.net,1009948,RESELLER, d641df8625486a7b
→ sellers_json: HTTP 403 to automated requests
line 85 smartadserver.com, 4878, RESELLER, 060d053dcf45cbf3
→ sellers_json: HTTP 404
line 97 adintouch.com,10017,RESELLER
→ sellers_json: HTTP 404
line 102 smaato.com, 1100059375, RESELLER, 07bcf65f187117b4
→ sellers_json: HTTP 403 to automated requests
line 106 smartadserver.com, 4295, RESELLER
→ sellers_json: HTTP 404
line 112 vungle.com,6630caa1a81a0e0011dcefbb,DIRECT,c107d686becd2d77
→ sellers_json: HTTP 403 to automated requests
line 124 openx.com, 540680795, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 125 openx.com, 537127194, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 132 openx.com, 541056459, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403 to automated requests
line 144 yahoo.com, 55771, RESELLER, e1a5b5b6e3255540
→ sellers_json: HTTP 429 to automated requests
line 153 appnexus.com, 15349, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403 to automated requests
line 155 smartadserver.com, 3713, RESELLER, 060d053dcf45cbf3
→ sellers_json: HTTP 404