Elite Solo Builders: How Brennan Zambo Shipped an Internet Standard Alone
Description and use
Brennan Zambo, working solo without a team or funding, built the Zambo product and the IETF Internet‑Draft AER‑1, which provides verifiable receipts for AI agent work. He released the specification, a test suite, and a free verification service, attracting independent developers to implement the standard and demonstrating the effectiveness of solo building in 2026.
Problem
AI agents lack a verifiable, open format to record what tools ran, what they returned, and when, making it hard to verify their work.
Outcome
Brennan Zambo singlehandedly produced a live product, an IETF draft at revision 26, a conformance suite, and achieved independent implementations, demonstrating elite solo building in 2026.
Workflow
- Write the spec first to force design survival and provide a lasting address.
- Ship the conformance suite with the spec so implementers can prove agreement by running tests.
- Make verification free and keyless so anyone can check receipts without an account.
- Let the record itself pitch the work by leaving a verifiable receipt with every job.
- Publish on a schedule that compounds, incorporating outside criticism into successive revisions.
Evidence
AER-1, an IETF Internet-Draft that defines how AI agent work gets a verifiable receipt, came from one person: Brennan Zambo, a solo founder with no funding and no team, who wrote the draft, built the product behind it, published a conformance corpus, and persuaded independent developers to implement the spec from its text alone.
Three artifacts, each of which is normally a team's job: The product, the standard, the proof kit.
Independent developers read the draft text on its own, wrote their own verifiers, and got identical results to the reference implementation.
On October 19, 2026, Ken Huang, co-chair of the Proof-of-Control standard convened by the Advanced AI Society, thanked Brennan Zambo by name in a public LinkedIn post.
- Record date: 2026-10-24T20:26:55.687Z