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Redactable Blockchain, or Rewriting History in Bitcoin and Friends [pdf]

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Post by big_chungus » Tue, Mar 31, 2020, 6:28 PM UTC

Re: Redactable Blockchain, or Rewriting History in Bitcoin and Friends [pdf]

Post by gus_massa » Tue, Mar 31, 2020, 8:44 PM UTC

> Redactions can be made only by authorized entities and under speciﬁc constraints ...

This makes the network essentially centralized. Why not just use a db that is cheaper?

Post by tromp » Wed, Apr 01, 2020, 7:52 AM UTC

> there are several reasons to prefer an editable blockchain, spanning from the necessity to remove inappropriate content

There are already blockchains that do not allow for embedding of arbitrary data, because it's all elliptic curve points and Schnorr signatures.