> So how big is such a market of potential customers that don’t trust Docusign to not tamper with the attestation? I’d hypothesize the potential customer segment is very small.

This is sort of my point. This market probably exists, and it's almost certainly too small at the moment for Docusign/Hellosign/etc to consider going after. Which means any nimble startup that wants to can claim that market without much competition. That forms your core set of users, who are sticky to your service, and from whom you can fund development into adjacent markets (e.g. any attestations which are currently secured only by reputation. there's a fair amount of that in the auto industry, in housing/property, and in supply chain management, at the least).

I'm not saying that of all the business opportunities around, this is the best one. But it is a business opportunity, in an environment where most other investment opportunities are heavily oversubscribed.

> I always go back to, who’s going to invest in actually building the new blockchain solution and for what reason?

This was the original line I was responding to. Have we settled it? VCs would be one group to invest, and for the reason that there's an underserved market that no one else appears interested in serving and with the possibility to expand from there. Apparently, neighbor poster has actually already invested in this. So that seems pretty cut and dried to me.