research other ways for storing documents on the channel

[sichen1234]

Research whether https://www.blockstack.org/how-blockstack-works and https://xordrive.io/ could be used to store documents such as utility bills locally and yet make them available across the network.

[sichen1234]

See https://wiki.hyperledger.org/display/CASIG/2020-12-21+Peer+Programming+Call

[sichen1234]

Another good one is https://sia.tech/. We'll have to look at them all.

[petermetz]

Just took a peek at xordrive, unfortunately they are going to shut the service down at the end of 2021 :/

We will be shutting down xordrive on 16 December 2021, please download and save all your files before that date. Thanks for trying out xordrive!

[sichen1234]

Thanks for letting us know. Actually at this point I think the solution we have implemented is adequate: Documents can be stored either in amazon s3 or locally at each node using serverless. This helps meet data privacy requirements, such as those in Europe that require data to be stored in the EU. Meanwhile the md5 hash is stored on chain to validate that the document is correct and unaltered.