Sina Vafadar

Sina Vafadar · Canada

I build systems that reveal the hidden dynamics behind on-chain ecosystems.

Six years working across blockchain and DeFi data: building pipelines, analytical models, and research systems to study participant behaviour, incentive design, Sybil resistance, market dynamics, and transaction ordering.

Experience

▬ employment  ▭ study  ◆ publication
University of Alberta M.Sc. Computer Engineering
sep 2021 - sep 2023
Mastercard Data Scientist Intern
may 2023 - sep 2023
OpenBlock Labs Blockchain Data Scientist
oct 2023 - oct 2024
LayerZero Labs Blockchain Data Engineer
nov 2024 - oct 2025
DoubleZero Foundation Blockchain Data Engineer
nov 2025 - present
AFT 2023 Peer-Reviewed Paper
2021202320252027

Publication

named for a man it outlived
A Condorcet cycle between three or more options Every pair of options is decided by a majority, yet the results run in a loop, so no ordering satisfies the vote. ABC
every pair splits two to one.
the majority never lands.

1785 → 1794 Condorcet worked out the mathematics of collective choice in 1785, arguing that reason could settle how a society decides. Nine years later a collective decided against him: outlawed during the Terror, he was found dead in a cell at Bourg-la-Reine two days after his arrest, by means still disputed. he never saw the paradox that carries his name become a design constraint.

238 years later

Condorcet Attack Against Fair Transaction Ordering
Sina Vafadar, Majid Khabbazian · AFT 2023