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Stöcker, Carsten. “Spherity’s Identity Tech Predictions for the decade of the 2020’s - Part 2”. Spherity Blog. Feb 13, 2020. Accessed before May 2020. https://medium.com/spherity/spheritys-identity-tech-predictions-for-the-decade-of-the-2020-s-part-2-6e480d2a57ea

https://token.kitchen/token-economy/v1ch5chapter-references