[emddudley]

Similar to the cited "Do you Need Blockchain" there is NISTIR 8202: Blockchain Technology Overview, page 42.

1. Do you need a shared, consistent data store?

2. Does more than one entity need to contribute data?

3. Data records, once written, are never updated or deleted?

4. Sensitive identifiers WILL NOT be written to the data store?

5. Are the entities with write access having a hard time deciding who should be in control of the data store?

6. Do you want a tamperproof log of all writes to the data store?

https://nvlpubs.nist.gov/nistpubs/ir/2018/NIST.IR.8202.pdf

[sanderjd]

I think the interesting interplay with this is in "need" vs. "want".

I share the conventional wisdom that nothing, or very nearly nothing, needs these properties. But I don't think it's unreasonable that people have been looking around for things that want them.

[not_kurt_godel]

Why would you voluntarily want a data store that can't store sensitive values?

[DennisP]

> 3. Data records, once written, are never updated or deleted?

This is not a requirement for any blockchain with smart contracts.