Dino Mark was an early participant in the Ethereum community, involved from January 2014 during the project's pre-launch phase.
Toronto Bitcoin Scene
Episode 16 pushes Dino's connection to the broader story back even earlier. Anthony Di Iorio says Dino Mark was present at his very first Toronto Bitcoin meetup in November 2012, alongside Vitalik Buterin and Peter Todd.
That makes Dino part of the tiny initial Toronto Bitcoin circle out of which much of Ethereum's Canadian prehistory later emerged.
Miami House
Dino also appears in the well-known Miami house photo from January 2014, placing him among the wider group physically present around Ethereum's first public announcement period.

The DAO and Ethereum Governance
Dino Mark became notably known for co-authoring a paper in 2016 analyzing vulnerabilities in The DAO's smart contract code. Along with Vlad Zamfir and Emin Gün Sirer, he published "A Call for a Temporary Moratorium on The DAO" which warned of security issues before the June 2016 hack occurred. The paper identified several critical vulnerabilities and recommended that investors hold off from directing The DAO to invest in projects until the problems had been resolved.
Primary Sources
Back-links
Other pages that reference this:
- Taylor Gerring Photos (Articles, January 25, 2014)
- The DAO (Articles, April 30, 2016)
- Early Days of Ethereum - Episode 4 - Taylor Gerring (Videos, August 08, 2025)
- Museum of Ethereum walkthrough (Videos, March 13, 2026)
- Early Days of Ethereum - Episode 16 - Anthony Di Iorio (Videos, May 16, 2026)
- Anthony Di Iorio (People)
- Peter Todd (People)
- Taylor Gerring (People)
- Vitalik Buterin (People)
- Vlad Zamfir (People)