# Reference

0. []()
0. [OpenAttestation: Document Endorsement and Verification Framework](https://www.openattestation.com/)
0. [Crypto is crashing but the tech behind it could save luxury brands billions](https://edition.cnn.com/2022/06/26/business/aura-blockchain-luxury-counterfeit-hnk-spc-intl/index.html)