TL;DR XY Oracle (XYO) validates geospatial data in a decentralized manner, protecting users’ privacy by allowing them to control their location. Beldex (BDX) ensures anonymous transactions through ring signatures and stealth addresses, protecting users’ financial identity. OriginTrail (TRAC) optimizes data exchange in supply chains, ensuring that sensitive information is protected and handled...
source: https://crypto-economy.com/from-traceability-to-privacy-new-decentralized-solutions-from-origintrail-beldex-and-xyo/