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Every mortgage closing, insurance claim, and government contract shares the same vulnerability.

The sensitive fields inside those documents — SSNs, bank accounts, medical records — sit in plaintext databases, protected by nothing more than access controls and audit logs. When a breach happens, the data is already in the clear.

We built H33-Vault to fix this.

See How It Works

H33-Vault is a joint product from H33.ai and Cachee.ai that brings real cryptography to document validation pipelines.

Not checkbox compliance. Mathematical guarantees.

Here’s what happens when an operator reviews a document in H33-Vault.

Step 1
FHE Field Encryption
Every sensitive field — SSN, bank account, DOB, medical record — is FHE-encrypted at extraction. The plaintext value never touches a database, never enters a log, never appears in a cache key.
Every sensitive field — SSN, bank account, DOB, medical record — is FHE-encrypted at extraction. The plaintext value never touches a database, never enters a log, never appears in a cache key.
Step 2
Cryptographic Proof Per Decision
Every validation decision generates a SHA3-256 commitment proof with a Fiat-Shamir challenge — cryptographically binding the operator, the document, the field, and the decision into a single non-interactive proof. No trusted setup. No external ceremony. Under 5 microseconds.
Every validation decision generates a SHA3-256 commitment proof with a Fiat-Shamir challenge — cryptographically binding the operator, the document, the field, and the decision into a single non-interactive proof. No trusted setup. No external ceremony. Under 5 microseconds.
Step 3
Encrypted Operator Monitoring
Operator behavior is monitored with FHE-encrypted velocity counters. The system tracks validations per hour, SSN views per hour, and edit rates without ever decrypting the actual count. Even we can’t see the number without an explicit admin decryption step.
Operator behavior is monitored with FHE-encrypted velocity counters. The system tracks validations per hour, SSN views per hour, and edit rates without ever decrypting the actual count. Even we can’t see the number without an explicit admin decryption step.
Step 4
Post-Quantum Finalization
Document finalization computes a SHA3-256 Merkle root over all field hashes and signs the entire package with CRYSTALS-Dilithium ML-DSA-65, NIST FIPS 204 — a post-quantum signature that no future computer can forge.
Document finalization computes a SHA3-256 Merkle root over all field hashes and signs the entire package with CRYSTALS-Dilithium ML-DSA-65, NIST FIPS 204 — a post-quantum signature that no future computer can forge.
Step 5
Biometric Step-Up for Critical Fields
Critical fields require biometric step-up authentication within a 15-minute freshness window. The decrypted value displays in a vault overlay that auto-hides after 30 seconds.
Critical fields require biometric step-up authentication within a 15-minute freshness window. The decrypted value displays in a vault overlay that auto-hides after 30 seconds.

The speed layer matters as much as the trust layer.

Cachee.ai provides the speed infrastructure underneath H33-Vault. Field retrieval under 15 milliseconds. L1 in-process DashMap overlay with a 5-second TTL, backed by a Redis-protocol L2 layer. 99.9% cache hit rate at steady state.

For a 500-person operations floor processing mortgage documents, that sub-15ms retrieval eliminates the 15-second field load times that plague legacy systems. At 8 hours per operator per day, that is 125 hours per day returned to productive work.

125 hours/day
returned to productive work on a 500-person operations floor

The entire cryptographic pipeline — commitment, proof, verification, velocity counter increment — completes before the operator’s finger lifts off the mouse button.

Live Pipeline

FHE Field Encrypt (BFV-64)
—
SHA3-256 Commitment Proof
—
FHE Velocity Counter Increment
—
Cachee Field Cache Write
—
Dilithium Sign + Verify (ML-DSA-65)
—
Total: —
Mortgage and Title
Mortgage 1003, closing packages
Quantum harvest attacks on SSN and account data in multi-decade documents.
No RSA. No ECDSA.
Insurance Claims
Medical claims, liability assessments
HIPAA compliance as a mathematical property, not a policy document.
No RSA. No ECDSA.
Government Contracts
SF-86, DD-214, federal procurement
FIPS 204 mandated by 2027. Not optional.
No RSA. No ECDSA.
Healthcare Intake
Patient records, consent forms
Sensitive field encryption by cryptographic design, not database policy.
No RSA. No ECDSA.

The more you seal, the less each one costs.

H33-Vault-0
50 units per document
Dilithium signature + SHA3 commitment chain on every field. Full audit log. No FHE.
Small$3.00
Mid-market$1.25
Enterprise$0.30
H33-Vault-1
100 units per document
Vault-0 + BFV FHE encryption on all High and Critical fields. Encrypted velocity counters.
Small$6.00
Mid-market$2.50
Enterprise$0.60
H33-Vault-2
200 units per document
Vault-1 + ZKP proofs on every validation event. Blockchain attestation of the finalized document hash.
Small$12.00
Mid-market$5.00
Enterprise$1.20
H33-Vault-3
300 units per document
Vault-2 + TEE secure display, biometric step-up, 3-of-5 threshold decryption, ZK-compressed audit trail.
Small$18.00
Mid-market$7.50
Enterprise$1.80
2,500 docs/mo
Monthly Spend
$12,500
Per Document
$5.00
Annual
$150,000
H33-VaultDocuSignBlend
Per-document (mid-market)$5.00$8–25$15–40
Post-quantum signaturesDilithium (FIPS 204)——
FHE field encryptionBFV lattice——
ZKP validation proofsSHA3-256 Fiat-Shamir——
Blockchain attestationSolana on-chain——

No RSA. No ECDSA. No plaintext audit logs pretending to be security.

Pure H33 stack: BFV FHE + SHA3-256 proofs + Dilithium signatures + Cachee speed.

Start Sealing Read the Technical Docs