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Bitcoin Riches
to Prison Struggles

My name is Larry Harmon. I created Helix, a darknet Bitcoin mixer, because I was obsessed with the potential of cryptocurrency and what Bitcoin could become. I was the first person in the United States ever prosecuted for running a crypto mixer. After my indictment, the government raided my home and seized approximately $500 million worth of Bitcoin.

What followed was years of cooperating with the feds. I used my skills to help them trace and recover cryptocurrency, not just from my own projects, but from other darknet platforms too. That cooperation earned me a reduced sentence—10 months in federal prison instead of the original guidelines.

Blocks and Chains started as a prison blog. Every week, I wrote raw, honest journal entries about what life was like inside, along with reflections on the books I was reading, my fitness journey, and what it meant to start over from rock bottom. The posts are personal, sometimes painful, but they’re real. If you want to know what prison is like for someone who once built multi-million-dollar Bitcoin infrastructure—and then lost it all—start reading.

Jail Journals
Book List
Picture of larry Harmon in Bitcoin shirt

Indicted in 2020 for one of the largest crypto money laundering operations ever

Betrayed by
a family Member

 Forced to hand over $500 million worth of Bitcoin to the government, I was left with nothing

Indicted

Betrayed

 Broken

My Journals from Jail

Explore my journey through incarceration with a unique collection of daily journals and in-depth book reports. Each entry offers a raw, personal perspective, transforming moments of confinement into reflections of growth and resilience.

One Week Home: Small Freedoms, Big Perspective

by | Dec 26, 2025 |

I’ve been home for about a week now, and it still feels strange to even type that sentence. I didn’t have to go to a halfway house, which was a huge relief. I do have to check in once a week and wear an ankle monitor, but honestly, life is very good right now. After...

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New Mindset. New Me.

by | Dec 8, 2025 |

This past week has been slow and rough. A lot of people got irritated with me for participating too much in RDAP, and it really made me think about the mindset of many people in here compared to my own. When I first came into prison, I worried about fitting in—not...

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Thanksgiving Behind Bars

by | Dec 2, 2025 |

Thanksgiving week. One of the biggest holidays of the year—and I spent it locked up. It sucked, but I’ll use it as an opportunity to share what celebrating one of America’s favorite holidays looks like from behind bars. When we got to the chow hall at 11 a.m.,...

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Counting Down

by | Nov 24, 2025 |

Another beautiful day here in Cumberland, Maryland. The sun is shining, the temperature is around 57 degrees, and for a moment it almost makes me forget I’m in prison. As I get closer to “the door” (as we say in here), I’ve noticed my counting habits getting more...

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Shakedown City

by | Nov 13, 2025 |

Another exciting week here at Cumberland Prison Camp. First, some context — I’ve mentioned before that our mattresses are terrible. We sleep on a steel slab with about two inches of foam they call a “mattress.” It’s rough. So, being resourceful inmates, we find ways...

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View All Journals

My Book List

Explore my journey through incarceration with a unique collection of daily journals and in-depth book reports. Each entry offers a raw, personal perspective, transforming moments of confinement into reflections of growth and resilience.

Book List

Help Out

If my story resonates with you and you’d like to make a difference, click below to visit the Help Out page. There, you’ll find ways to support me during my time in prison through commissary contributions or Bitcoin, as well as a contact form to connect with me about future business ventures once I’m released. Together, we can turn this journey into a story of redemption and success.

Help out