Not a device. Not an app. A five-layer system for passive sensing, intelligence, user-owned data, and ecosystem-scale health innovation.
Bathroom-integrated sensing — toilet, mirror, scale, fixtures. Built into the room people already use.
Passive, daily biomarker capture. No wearing, no logging, no remembering — signal in the flow of life.
Models that turn passive captures into meaningful health insight — longitudinal, contextual, on-device when possible.
User-owned, local-first, federated by design. The architecture is the trust signal.
Founders, clinicians, corporates, institutions — coordinated around shared standards, not a single vendor stack.
Not a device. Not an app. A five-layer system.
Prevention has always required what people reliably won't do.
The bathroom is the one room most households visit more reliably than any clinic, any app, or any wearable — used daily, passively, without ceremony.
Toilet-, mirror-, and fixture-grade biomarker capture is becoming real — and the cost curve is finally bending.
Longitudinal pattern detection now works across low-signal data. The hard part is no longer the model.
Surveillance-era architectures will not earn participation in the most intimate room of the house.
Sensitive computation happens in the room. Raw signal does not leave the home by default.
People hold the keys to their own data. Sharing is opt-in, granular, and revocable.
Models learn across populations without pooling personal data. Insight scales; exposure does not.
The architecture is the trust signal.
Eight commitments that define what it means to belong to this ecosystem. Public, evaluable, and signed. If you cannot sign in public, you cannot sign at all.
People own their health data — the keys, the copies, the right to leave.
Designed in, not promised. The system enforces the guarantee.
Computation as close to the person as possible. Cloud only when it serves the user.
The center of gravity moves to where people live. Institutions amplify, not gatekeep.
Interoperability, open APIs, no vendor lock-in. Standards belong to the field.
Designed for the median household, not the wealthiest decile.
The same engine. Capital — including the BHOS Fund — is how prevention finally scales.
Members hold each other to it. Silence in the face of breach is not an option.
Systems mapping across hardware, data, regulation, and capital — to find where small moves produce large effects.
Incubate hardware and run neighborhood-scale pilots — turning the model into something you can stand inside.
Convene founders, corporates, clinicians, and capital — and structure blended financing for the long arc.
Function as a transition observatory — tracking what's emerging, naming what's missing, and publishing what we learn.
A rare alignment of substrate, culture, and demand — the conditions to build the standard before the rest of the world needs it.
The first full articulation of the BHOS systems architecture — data sovereignty, shared language, trust infrastructure.
Systems ViewHealth data categories don't stay open for long. What happens if shared language isn't built before capital consolidates.
From the FieldNotes from a neighbourhood-scale pilot testing interoperability between bathroom sensors and clinical health records.
Build on the platform. Sensors, models, applications, integrations — across all five layers.
02Validate the science. Cohort design, biomarker validation, clinical evidence, publication.
03Pilot in market. Bring the room, the channel, or the deployment footprint to a real-world trial.
04Back the long view. Patient capital for category infrastructure, not single-product bets.
05Frame the standard. Help shape the data, trust, and interoperability rules this category will run on.
The category is forming now. The choices made in the next 24 months will determine who participates — and on what terms.