So first things first: I hadn't heard about researchers' pledges before, but the "Free Our Knowledge" website got me on speed.
The idea proposed here uses the concept of a journal in some different, creative way. However, one should discuss alternatives and then evaluate which option is best. Let me suggest two such alternatives:
1. Pledge-sites such as "Free Our Knowledge" could offer virtual badges for pledges made and kept. Let me give an example of what I have in mind: w3-consortium offers an html-validation-service (https://validator.w3.org
). Once you validated your html-file/website, you can download an image certifying your conformity with standard which you can put on your website. Instead of an image the badge could be embeddable as an <iframe> or similar to ones web-CV.
2. Or, going wild here, something similar could probably be done with a Non-Fungible Token (NTFs). This would, in my understanding of the technology, allow to some extend to verify the badge.
Maybe I am completely missing the point here. Maybe there are also other alternatives? What would be the advantages and disadvantages of each of those.