Passive income: NO

Starting a blockchain consulting side hustle has the potential to eventually earn passive income, but it largely depends on various factors. To reach a passive income level with this hustle, one would need to set up efficient systems for client management, project delivery, and possibly automate certain tasks. However, achieving true passive income in this field is not common and usually requires a substantial amount of initial work to establish credibility, build a client base, and refine service offerings. While some individuals may share success stories of earning passive income through blockchain consulting, they are often outliers rather than the norm. It's crucial to note that passive income in this context typically involves ongoing client engagements or retainer agreements rather than fully hands-off income streams. As such, while passive income is achievable in blockchain consulting, it is not guaranteed, and expectations should be realistic.