Bitmark

Designing ownership people can understand, on the blockchain and in their health data.

At Bitmark I designed two products built on the same hard idea: letting people register, hold, and transfer the things they own, whether digital property or personal health data, on an independent blockchain. The work was making an unfamiliar concept feel concrete and safe to act on.

The desktop registry makes blockchain property visible as a collection people can browse.

Problem

Registering and transferring ownership on a blockchain is a foreign idea to most people.

Bitmark let users turn digital assets and personal data into registered property on an independent blockchain. Powerful, but abstract: users had to grasp issuance, ownership, transfer, recovery phrases, and consent before they would trust the product with something valuable. If those ideas stayed technical, people stalled.

Constraints

  • Blockchain mechanics (issuance, transfer, keys, recovery phrases) had to stay accurate while reading as everyday actions.
  • Personal health data demanded explicit consent, clear permissions, and a trustworthy tone at every step.
  • As an early-stage startup we shipped lean MVPs on short cycles, often a couple of weeks, and learned in market.
  • Everything had to stay consistent with the Bitmark brand across two products and two platforms.

My Role

I owned UI/UX for both products from the beginning, covering flows, high-fidelity screens, and interaction detail, working closely with the business and engineering teams. I built alternate prototypes to make unfamiliar concepts concrete and kept both products aligned to the brand as they grew.

Digital Property

Turning issuance, transfer, and ownership into a flow people could follow.

The web app let users register digital properties, issue limited assets, and trade them on a secure independent blockchain. I structured each blockchain action as a step with a clear recipient, price, and confirmation, so transferring ownership read like a transaction, not a cryptographic operation.

Bitmark issue screen: setting asset attributes and metadata before issuing a limited asset.
Issue: asset attributes and metadata
Bitmark transfer ownership screen with recipient, price, and a clear confirmation step.
Transfer: recipient, price, confirm
Bitmark property detail screen showing an asset's provenance: a timestamped ownership record listing each previous owner.
Property detail: the provenance record behind every asset

On mobile, the same model had to fit a wallet. Onboarding explained ownership in plain language, registration pulled from sources people recognised, and the recovery phrase, usually the scariest part of any crypto product, was designed as a guided, checkable step.

Bitmark mobile onboarding screen titled Own your data, explaining that personal data is a valuable asset and Bitmark records property rights for it.
Onboarding: ownership in plain language
Bitmark mobile register screen listing data sources such as photos, files, and health data.
Register from a source
Bitmark mobile recovery-phrase screen asking the user to order their phrase words correctly.
Recovery phrase, made checkable

Bitmark Health

Helping people own their health data, and choose when to share it.

Bitmark Health let people register their health data as property on a public registry, so no one could access it without explicit permission, and optionally donate it to medical research. I led the iOS design end to end, framing onboarding around the new mental model of "creating property around your data" and making consent legible at every step.

Bitmark Health shown on an iPhone held in hand, surfacing weeks of health data and health records.
Own your health data and build a better future in healthcare
Bitmark Health onboarding screen: create property around your health data.
Onboarding
Bitmark Health data index listing health records by date.
Data index
Bitmark Health data detail showing structured Apple Health values as a readable tree.
Data detail (structured)
Bitmark Health data detail showing a scanned medical condition report.
Data detail (document)

The record-adding flow was built as two clickable variants so the team could compare the interaction sequence. I no longer have a recorded test result, so the prototypes are shown here as exploration evidence rather than proof of validation.

For data donation, I reframed the onboarding into a clear, illustrated sequence covering what a study is, how data is used, and what consent means, so a genuinely new idea felt approachable rather than alarming.

Bitmark Health study onboarding screen explaining study surveys and tasks.
What a study is
Bitmark Health study onboarding screen explaining privacy and data use.
How your data is used
Bitmark Health study welcome screen introducing the consent walkthrough for a diabetes research study, with a chart illustration.
Consent, made explicit
Bitmark Health donations browser listing health research studies users can contribute to.
Choose a study to support

Key Decisions

Make ownership tangible.

Instead of crypto vocabulary, the products spoke in terms of registering, holding, and transferring property, a model people already understand from the physical world.

Treat keys and consent as core UX.

Recovery phrases and data permissions were designed as first-class steps, not fine print, so users understood what they controlled before committing anything.

Refine the unfamiliar with language and icons.

I reframed the onboarding flows with the product team and built a clearer, illustrated icon set, lowering the difficulty of new concepts like data donation.

Make alternatives concrete.

Two working prototypes exposed the interaction differences before further investment. Because the measured result was not recorded, they remain evidence of exploration, not a validated winner.

Outcome

Across both products, the design work gave issuance, transfer, recovery, consent, and donation a consistent interaction language the team could keep building on as features shipped. Bitmark Health shipped with real research partners: the donation flow connected users to public-health studies run by UC Berkeley researchers.

Reflection

This was early proof of what still drives my work: when a product is built on an unfamiliar system, the real design problem is comprehension. Structure and language do more to earn trust than visual polish.

Next Case Study

Designing options and vault flows for Sui DeFi users.

End-to-end product design for trading, yield, and Web3 interactions where clarity has to come before capital.