I wrote recently describing Python and Golang clients for OriginStamp based on OriginStamp’s API’s swagger spec. As a way to pursue learning rust, I’ve been forcing myself to write examples using rust. I’m honestly finding learning rust tough going and think I’m probably better to revert to the “Learning Rust” tutorials. That said, herewith an explanation of building a rust client using an OpenAPI (!) generated SDK from OriginStamp’s swagger spec.

Recently, I wrote about some initial adventures with OriginStamp Using OriginStamp’s UI or API, submitting a hash results in transactions being submitted to Bitcoin, Ethereum and a German newspaper. Using the API, it’s possible to query OriginStamp’s service for a proof. This post explains how to verify such a proof. The diligent reader among you (Hey Mom!) will recall that I submitted a hash for the message: Frederik Jack is a bubbly Border Collie The SHA-256 hash of this message is:

I wrote recently about some exploration of Timestamping with OriginStamp. Since writing that post, I had some supportive feedback from the helpful folks at OriginStamp and plan to continue exploring that solution. Meanwhile, OriginStamp exposed me to timestamping and trusted timestamping and I discovered freeTSA.org. What’s the point? These services provide authoritative proof of the existence of a digital asset before some point in time; OriginStamp provides a richer service and uses multiple timestamp authorities including Bitcoin, Ethereum and rather interestingly a German Newspaper’s Trusted Timestamp.

A friend mentioned OriginStamp to me. NB There are 2 sites: originstamp.com and originstamp.org. It’s an interesting project. It’s a solution for providing auditable proof that you had a(ccess to) some digital thing before a certain date. OriginStamp provides user-|developer-friendly means to submit files|hashes (of your content) and have these bundled into transactions that are submitted to e.g. bitcoin. I won’t attempt to duplicate the narrative here, review OriginStamp’s site and some of its content.