H33 Custody › What Are You Protecting? › Document Custody
What must survive?
Document Custody
Documents that need to survive you — wills, trusts, medical directives, contracts, and family records — held privately, verifiably, and on terms you set.
The Problem
Why this question matters.
Problem 01
Where do you keep the documents that actually matter?
The signed will sits in a file cabinet. Medical directives are in a folder marked 'IMPORTANT.' Trust instruments are at the lawyer's office, accessible only during business hours. Family records are scattered across phones, hard drives, and cloud accounts whose passwords no one else knows. When something happens, finding them becomes its own crisis.
Problem 02
Storage isn't custody
Cloud drives store. They don't designate beneficiaries. They don't define who's authorized to access. They don't produce verifiable proof of when a document existed, who signed it, or whether anyone modified it. They give you a place to keep things, not a custody model.
The Approach
How H33 Document Custody answers it.
Solution 01
Documents with custody rules
Every document in H33 Document Custody has explicit rules: who can view it, who can verify its existence, who inherits access, what triggers release. The rules are encoded in the custody record itself — not in a separate email to your lawyer.
Solution 02
Privacy-preserving verification
An auditor can prove a document exists, was signed at a certain time, and hasn't been modified — without ever seeing its contents. A beneficiary can prove they're entitled to receive it without revealing why. A court can verify chain of custody without breaking the underlying privacy.
Solution 03
Built to outlast formats
PDFs, images, video, signed legal documents — held in a format-neutral envelope that survives software changes. Verifiable in 2050 the same way it's verifiable today.
Capabilities
What you get.
Capability
Legal Document Custody
Wills, trusts, contracts, partnership agreements, NDAs — held with executor and beneficiary designation.
Capability
Medical Document Custody
Advance directives, health proxy designations, records of consent — accessible to designated parties under defined conditions.
Capability
Business Records
Cap tables, signed contracts, board resolutions, audit documents — preserved with verifiable provenance for years.
Capability
Trust Document Vault
Trust instruments and amendments held with trustee succession rules baked in.
Capability
Privacy-Preserving Verification
Third parties can verify document existence and integrity without seeing the contents.
Capability
Long-Term Preservation
Format-neutral storage with format-migration paths that survive software cycles.
Use Cases
Who uses it.
For individuals
Keep your will, advance directives, and important family documents somewhere your spouse, executor, and attorney can find them — even decades later.
For trustees
Hold trust instruments with verifiable provenance for regulators, beneficiaries, and successor trustees.
For businesses
Document trail that holds up at audit, in litigation, and during diligence — without leaking sensitive contents.
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