Juan C. Guerrero

Proof
of
human.

I'm Juan C. Guerrero. I see the system early, open the door at the top, and build it myself, with AI agents doing the typing.

  • Founder, Blockchain Jungle
  • Co-founder, Dojo Coding
  • Author, The Last Skill
See the evidence
Juan C. Guerrero speaking on stage in a dark blazer

Machines can generate almost anything. They can't be held responsible for it.

My book argues that machines can generate almost anything, but four things stay human. This is my evidence for each.

  1. Creativity

    The first professional AI song with a deceased artist

    José Capmany's cloned voice in a duet with his son. I led digital and co-authored the idea.

    Effie Silver 2024, Public Relations.

    Verify: Effie Worldwide, Music Business Worldwide, The Stable

  2. Governance

    1. Agents write the code
    2. Nightly evals grade tool path, citations and answer
    3. A pull-request gate blocks what fails
    4. A human holds the release key

    Agents do the work. A human holds the release key.

    I designed the eval system behind Capital Harness, an M&A agent harness: nightly evals on tool path, citations and answer, behind a pull-request gate.

    956 commits and 248 merged pull requests in 18 days.

    Client work, so there's no public link. Ask me and I'll walk you through it.

  3. Decisions

    Every call on a 5,000-person summit, and the full P&L

    I founded Blockchain Jungle and put Phil Zimmermann, Eli Ben-Sasson and Peter Todd on stage in Costa Rica.

    5,000+ attendees from 60+ countries in 2025.

    Verify: Forbes Centroamérica, CriptoNoticias

  4. Reputation

    The rooms you can't buy your way into

    Invited guest at Tether's invite-only Pioneering Progress Summit. Brought 55+ CEOs to PROCOMER's Doing Business session. Keynote at ALOOH Day 2026.

    2 Effies. HackerNoon Noonies 2022. Forbes Centroamérica.

    Verify: El Financiero, HackerNoon, Forbes Centroamérica

Proof of work.

Agents write most of the code now. I direct it, review it and own what reaches production. This is every commit I've made in the last year, one square per day.

10,000+
commits across 20+ repositories
420+
projects since 2018
236
organizations served, partnered with or pitched
11
years building
See all the work
Cover of The Last Skill: a head drawn in fine contour lines
Proof of work. Proof of stake. Proof of human. The protocol is the same. The asset is you.

From The Last Skill: What AI Will Never Own. It argues that agency under consequence is the one human capability AI can't replicate, and it gives you four tests to see how much of yours you still own.

Get it on AmazonRead about the book

Writing

Read all the writing