- Former Ethereum Foundation staff member Fulton has filed an 11-claim lawsuit alleging wrongful termination, disability discrimination, and retaliation under federal and Colorado law.
- The dispute originated around the organization’s controversial “Mandate” document, which featured a disputed “Source Seppuku License” that prompted staff pushback and an internal protest petition.
- Fulton asserts she was dismissed shortly after disclosing a cancer diagnosis and organizing workplace dissent, and she is now challenging a separation agreement requiring Singapore arbitration.
Lawsuit Accuses Ethereum Foundation of Retaliation and Disability Discrimination
A former employee of the Ethereum Foundation has taken legal action against the nonprofit organization, alleging a pattern of wrongful termination, retaliation, interference with medical leave rights, and disability discrimination under both federal and Colorado state law. The plaintiff, identified in the legal filing as Fulton, is seeking remedies including back pay, compensatory and punitive damages, legal fees, and the formal invalidation of a separation agreement she previously signed. In total, the complaint sets forth 11 distinct claims against the foundation, also citing intentional infliction of emotional distress, though it leaves the aggregate financial damages unspecified.
The conflict traces its origin to an internal governance document designated as the Mandate, which the Ethereum Foundation’s board presented to staff on Feb. 25. According to court filings, the document included a controversial clause known as the Source Seppuku License,
which outlined a symbolic pledge stating that contributors would take their own lives with a sword if they breached its terms. The inclusion of this provision provoked intense internal backlash across the organization, leading to a vote in which 79 staff members registered their opposition to keep the text in the governance charter.
Internal Pushback Over the “Source Seppuku License”
In the wake of staff objections, Ethereum co-founder and foundation board member Vitalik Buterin communicated to employees that leadership was considering substantial alterations to address their grievances. Despite these assurances, the Ethereum Foundation issued the finalized version on March 13. Rather than removing the contentious text entirely, the foundation preserved the language within a stylized visual illustration depicting cartoon characters. Furthermore, according to the lawsuit, the organization permanently etched the finalized Mandate onto the Ethereum blockchain.
Tensions elevated when employees faced directives to formally endorse the new Mandate under threat of dismissal. In response, Fulton and a colleague, Trent Van Epps, coordinated a joint protest letter that garnered signatures from 53 foundation employees. Although foundation leadership subsequently relented on requiring individual endorsements as a condition of continued employment, both Fulton and Van Epps were abruptly fired on April 6. The legal complaint contends that the two organizers were specifically targeted and dismissed in retaliation for spearheading internal resistance.
Cancer Disclosure and the Disputed Separation Agreement
Beyond the friction over the Mandate, Fulton alleges an egregious failure by the organization to protect her medical rights. According to the court filing, Fulton had maintained an unblemished employment history with strong performance reviews and zero disciplinary actions. However, the Ethereum Foundation dismissed her under two weeks after she disclosed that she had been diagnosed with cancer. The complaint outlines that management neglected to engage with her requests regarding job preservation or medical leave, instead terminating her without an explicit rationale.
Fulton claims that, under the immediate threat of losing her health insurance while coping with a severe medical condition, she felt compelled to sign a severance contract that purported to release the Ethereum Foundation from legal claims. She is now challenging the legality and enforceability of that document, specifically contesting a mandatory arbitration clause that would require disputes to be settled in Singapore. To substantiate her claims of retaliatory termination, the lawsuit points to an audio recording where Vitalik Buterin questioned whether rewarding workers who openly push back against organizational leaders would simply foster additional dissent, though the filing stops short of claiming Buterin directly ordered her firing.
Why This Matters
This lawsuit brings unprecedented scrutiny to the internal corporate governance, employment standards, and cultural practices within the Ethereum Foundation, the prominent nonprofit steering the ecosystem of the second-largest cryptocurrency by market capitalization. The allegations reveal significant friction between decentralized philosophical principles—such as committing organizational credos permanently to a public blockchain—and conventional labor rights protections under state and federal law. Ahead of further judicial review, administrative avenues have already been engaged: Fulton filed a formal complaint with the U.S. Equal Employment Opportunity Commission on June 2, receiving a right-to-sue letter on Sept. 23, while an unfair labor practice charge filed with the National Labor Relations Board remained active when the court action commenced.
Frequently Asked Questions
What claims are included in the legal complaint against the Ethereum Foundation?
The lawsuit details 11 legal claims, including disability discrimination, retaliation, interference with medical leave protections, wrongful termination under federal and Colorado law, and intentional infliction of emotional distress.
What was the “Source Seppuku License” in the Ethereum Foundation’s Mandate?
The “Source Seppuku License” was a provision inside an internal organizational document distributed to foundation staff on Feb. 25. It featured a pledge that contributors would take their own lives with a sword should they violate the terms. Despite a staff vote to drop the provision, it was retained in a stylized cartoon format and recorded onto the Ethereum blockchain.
Why is the plaintiff contesting the signed separation agreement?
Fulton states she signed the waiver under severe duress due to the imminent loss of her medical insurance immediately following a cancer diagnosis. She is asking the court to invalidate the agreement, along with its specific clause mandating arbitration proceedings in Singapore.




