// Link · 7 February 2026

Black Market SSP Earns a 60 Proof of Usefulness Score by Building Real-Time Currency Tracking

Black Market SSP is a real-time currency and petroleum tracking app for South Sudan that earned a 60 Proof of Usefulness score for delivering practical financial data to everyday users.

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@hacker-noon · hackernoon.com

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Hacker Noon@hacker-noon