Faster, Cheaper, and More Private: the Sequel IS Better! (did:btcr2, Part 2)

did:btcr2 is a censorship-resistant DID method using the Bitcoin blockchain as a Verifiable Data Registry to announce changes to the DID document. It improves on prior work by allowing: zero-cost off-chain DID creation; aggregated updates for scalable on-chain update costs; long-term identifiers that can support frequent updates; private communication of the DID document; private DID...