Grayhat 2020

Video and slides are here.

36C3

Videos and slides are here.

CloudFest 2019

Video is here.

35C3

Slides are here.

Internet Governance Forum 2018

Videos, slides, transcript, and report are here.

Malta Blockchain Summit 2018

Video is here.

Decentralized Web Summit 2018

Video is here.

34C3

Videos and slides are here.

Global Conference on Educational Robotics 2017

Video, slides, and paper are here.

ICANN58

Videos and slides are here.

QCon London 2017

Case Study: Alternate Blockchains (video and slides).

Practical Cryptography & Blockchain Panel (video).

Decentralized Web Summit 2016

Videos and slides are here.

Grazer Linuxtage 2015

Video is here.

Non-Namecoin Presentations

ICANN60