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by cplli 1418 days ago
Ok, I'll have to look more in-depth into the Microsoft link, they link to many more pages including a whitepaper.

Regarding all the blockchain centric DID methods, would someone wanting to validate a DID (eg: did:thecoin:whatever_would_go_here), need to hold a copy of the blockchain? (in a scenario where one doesn't want to be dependent on a third party for blockchain interactions).
2 comments
miohtama 1418 days ago
For most of blockchains you can do light client validation without the full chain (or full node). Light client needs to only know the block headers to validate a truth.

You can get block headers with very lightweight download work from peer-to-peer network.

https://geth.ethereum.org/docs/interface/les

link
Kubuxu 1418 days ago
Depends on the implementation and the blockchain, but for many cases there are ways to make such resolutions provably correct, such that you don't have to hold the copy of blockchain and you don't have to trust that a third party did the resolution correctly.
link