Use case · Estate
Store medical directives.
Advance directives, DNR orders, healthcare proxy — the documents that matter most at the worst moment usually cannot be found. Emergency-room staff cannot verify authenticity. Family members cannot prove authority.
The change: Emergency-accessible medical directives · biometric-attested + on-chain proof.
How it works
Four steps · every step signs a receipt.
Store advance directive, DNR, healthcare proxy · notarized on-chain at signing time
Emergency-room staff can verify the notarization via block explorer · no H33 account needed
Designated recipients (spouse, adult children, family attorney) can retrieve the directives via identity-attested access
Life Validation and dormancy triggers activate broader access as circumstances change
Evidence
The proof this actually works.
- Solana anchor makes the directive verifiable by any hospital or attorney without requiring them to be H33 customers
- Guardian recovery ensures your spouse can reach the directive even if you're incapacitated
- Cryptographic timestamp on the directive means no 'is this the current version' ambiguity in a crisis
- Edge case: Directive updates: on-chain revocation of the prior version · latest version is cryptographically determined
- Edge case: Multiple jurisdictions: the signature is cryptographic · works across state and country lines without re-execution
Related capabilities
If you're comparing alternatives
Trust status
Runs today. Honest about what's next.
We publish what's shipped and what's coming — the same list on every page.
Runs today
- Vault workflows running in production
- Cryptographic receipts emitted per action
- Immutable audit trail · Object-Locked
- Auth1 · Wallet · Document · Audit APIs
- Post-quantum primitives (Dilithium + Kyber)
- Benchmark v12 · 2,293,766 auth/sec
Coming next
- Public /verify/
/ receipt viewer - Public /replay/
/ decision viewer - docs.h33.you developer documentation
- SOC 2 Type II Certified
- Payment Requests + Rewards adapters