Johan Pouwelse

#67 [from 2nd April 2013](https://github.com/Tribler/tribler/issues/67) seems to be the earliest public record of TrustChain / MultiChain / BarterCast3.

From above initial 15 March 2013 issue text (emphasis added): > friendship as an edge property to strengthen **the trust overlay** against sybils Our goal: **_a universal mechanism to create...

We will pioneer a new approach for creating trust among a set of mistrusting parties. Our universal mechanism builds upon the trust research from the Tribler lab of the past...

## Trust data is always under attack The scientific AI or agent community has always been focused on formal trust [models](https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=trust+model+survey) and calculating trust. Turns out that it is a...

Our strong reputation and trust framework requires documented attacker assumptions. Especially: "**[Strong Existential Unforgeability under Chosen Message Attack](https://blog.cryptographyengineering.com/euf-cma-and-suf-cma/)**" After years of work on Buddycast, BarterCast3, Multichain and now Trustchain our...

We also need to document our "_design principles_" (ToDo make axiomatic): - Reputations establish the prevalence of cooperation based on reciprocity - Reputation is rewarded with reciprocity - Reputation is...

After the summer of 2020 my plan is to form a small dedicated team around this issue. Have weekly team meetings, etc. @alexander-stannat has joined us for a few months...

> I'm currently not quite happy yet with the interconnection between the theorems: they do not work to some grand conclusion So, the hard work now begins of proving some...

next step could be a list of deployed reputation systems: - https://www.reddit.com/r/modnews/comments/hmd17x/karma_experiment/

Key related work: [A Taxonomy to Express Open Challenges in Trust and Reputation Systems](http://www.jocm.us/uploadfile/2013/0419/20130419051008585.pdf) Lists all the challenges and in-depth analysis: Trust value representation, Information source, Sybil, white washing, slander,...