Decentralized Identity: Where Did It Come From and Where Is It Going? - Oscar Avellaneda; Alan Bachmann; Abbie Barbir; Joni Brenan; Pamela Dingle; Kim Hamilton Duffy; Eve Maler; Drummond Reed; Manu Sporny (IEEE Commun. Stand. Mag., 2019)

Decentralized Identity of Artifacts - System Architecture. - Ivan Lambov; Kim Hamilton Duffy (IS, 2024)

Personhood credentials: Artificial intelligence and the value of privacy-preserving tools to distinguish who is real online. - Steven Adler; Zoë Hitzig; Shrey Jain; Catherine Brewer; Wayne Chang; Renee DiResta; Eddy Lazzarin; Sean McGregor; Wendy Seltzer; Divya Siddarth; Nouran Soliman; Tobin South; et al. (CoRR, 2024)