Danny Ryan is an Ethereum researcher who served as a lead coordinator for the network’s transition from Proof of Work to Proof of Stake. He later co-founded Etherealize, an organization focused on institutional Ethereum adoption. His contribution was important, but The Merge was a multi-year effort involving many researchers, client teams, and community contributors.
Background and Career
The Merge, completed on September 15, 2022, connected Ethereum’s execution layer to the proof-of-stake Beacon Chain and ended proof-of-work mining on Ethereum mainnet. Ryan helped coordinate research and implementation across teams; he was not the sole author or engineer of the upgrade. Ethereum’s own documentation says the change sharply reduced energy use but did not directly make transactions faster or cheaper.
Contributions and Context
Ryan’s later interview with ethereum.org describes his time at the Ethereum Foundation, his decision to leave, and the creation of Etherealize with co-founder Vivek Raman. That account supports describing Ryan as a coordinator and co-founder, while keeping institutional advocacy distinct from protocol research.
Related Terms
See Also
- Is Ethereum Staking Making the Network More Centralized?
- Are Layer 2 Networks Actually Decentralized?
- Does Ethereum TPS Include Layer 2 Transactions?
- Exchange crypto with ChangeNOW
Sources
- Ethereum.org, Danny Ryan interview (2025) — identifies Ryan as a former lead coordinator of the Merge and describes his later co-founding of Etherealize.
- Ethereum.org, The Merge — explains the network upgrade, its September 2022 completion, and what changed in Ethereum consensus.
- Buterin et al., Combining GHOST and Casper (2020) — lists Ryan as a co-author of Gasper research combining a proof-of-stake fork-choice rule with Casper finality.