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Data Controller Signature on Data Item: (nonredudiable, integral)
Data Mesh Meetup
MKDocs GitHub
https://github.com/trustoverip/TSS0033-technology-stack-acdc
https://tools.ietf.org/html/draft-ietf-tls-subcerts-10
Delegation chain separate from identity chain
hiding part of the chain
privacy in both direction walking back up to the root and privacy walking down from the root