File checksums

[poelzi]

Description

It would be very useful, if the sha256 checksums created while encoding of a blob, would be exposed as sui Blob attributes.

This would open more possibilities, like matching external data to blobs in walrus. The sha256 is calculated anyways from the blobid creation.

It might make sense to do a forward compatible interface so multiple hashes can be provided later on.

Code of Conduct

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[github-actions]

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