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 (25 of 180)
line 4 facebook.com, 300466985746409, DIRECT, c3e20eee3f780d68
→ sellers_json: HTML or login page instead of JSON
line 17 openx.com, 565175463, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 19 criteo.com, b-062019, RESELLER, 9fac4a4a87c2a44f
→ sellers_json: HTTP 403
line 20 appnexus.com, 17779, RESELLER
→ sellers_json: HTTP 403
line 25 zetaglobal.net, 630, RESELLER
→ sellers_json: HTTP 404
line 28 openx.com, 537153564, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 29 openx.com, 563905670, RESELLER, 6a698e2ec38604c6
→ sellers_json: HTTP 403
line 42 appnexus.com, 14230, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 48 ogury.com, 065d4ff5-a269-44be-9634-9d4d7af2dfc3, RESELLER
→ sellers_json: HTTP 403
line 58 appnexus.com, 11826, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 87 criteo.com, B-057955, RESELLER, 9fac4a4a87c2a44f
→ sellers_json: HTTP 403
line 101 adcolony.com, 7d04a18a58085918, RESELLER, 1ad675c9de6b5176
→ sellers_json: HTML or login page instead of JSON
line 109 freewheel.tv, 1235183, RESELLER
→ sellers_json: HTTP 403
line 110 freewheel.tv, 1235279, RESELLER
→ sellers_json: HTTP 403
line 113 criteo.com, B-063105, RESELLER, 9fac4a4a87c2a44f
→ sellers_json: HTTP 403
line 117 rhythmone.com, 3948367200, RESELLER, a670c89d4a324e47
→ sellers_json: HTTP 403
line 118 adx-dre.op.hicloud.com, PUB_HW_1003, RESELLER
→ sellers_json: HTTP 404
line 119 adx-dra.op.hicloud.com, PUB_HW_1003, RESELLER
→ sellers_json: HTTP 404
line 120 adx-drru.op.hicloud.com, PUB_HW_1003, RESELLER
→ sellers_json: HTTP 404
line 123 hyperad.tech, 20, RESELLER
→ sellers_json: HTML or login page instead of JSON
line 125 advertising.com, 28886, RESELLER
→ sellers_json: HTTP 403
line 129 appnexus.com, 11450, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 130 appnexus.com, 13181, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403
line 142 loopme.com, 11442, RESELLER, 6c8d5f95897a5a3b
→ sellers_json: HTTP 403
line 144 appnexus.com, 12061, RESELLER, f5ab79cb980f11d1
→ sellers_json: HTTP 403