a few links to check out about this:

• https://satoshi.nakamotoinstitute.org/posts/bitcointalk/threads/244/#229
• https://cs.brown.edu/courses/csci2390/2020/readings/blockstack-v1.1.pdf
• https://github.com/WebOfTrustInfo/rwot1-sf/blob/master/final-documents/dpki.pdf
• https://identity.foundation/sidetree/spec/