Don't build trust
into every application.
Build it once.
Provision your own ledger. Define what you track. Screen every new fact against its history before you accept it, and issue proof a third party can verify — without trusting your word for it.
No credit card. Sandbox ledgers are always free.
POST /v1/ledgers/vinvault-prod/evaluate
{
"subjectKey": "WBAAA1305L4A12345",
"attributes": { "odometer_km": 45230 }
}
→ 200 OK
{
"verdict": "deny",
"findings": [{
"rule": "odometer_monotonic",
"result": "FAIL",
"explanation":
"45230 is lower than the last
attested value 52000."
}]
}Partners
What you get
Everything you need to make data provably trustworthy
Deploy in minutes, not sprints
Create, configure, or destroy a ledger like any cloud resource. Multi-tenant and isolated per client — run one or several.
Bring data from anywhere
API push, signed webhooks, batch import, or a read-only database connector — mapped and previewed before anything syncs.
Track only what matters
You decide exactly what to track — only the fields your alerts actually need. Versioned, additive by default.
Catch it before it happens
Screen every new fact against a subject's own history — a value that must never decrease, an identifier that must never change.
Prove nobody tampered with it
Canonical hashing and a Merkle log with inclusion and consistency proofs — checkable, not just asserted.
Hand over proof, not promises
Every subject carries a live status. A credential is portable proof a third party verifies independently.
See it in action
A dashboard your team will actually use
Every ledger, source, rule, and alert in one place — built for the people who have to act on a finding at 2am, not just the ones who configured the rule.
Active ledgers
3
Records attested
97,954
Evaluations (24h)
1,380
Open alerts
5
WBAAA1305L4A12345
odometer_km is lower than the last attested value — sequence violation.
APP-2026-08841
work authorization could not be confirmed within the SLA window.
APP-2026-08790
applicant flagged against the shell-company watchlist.
The API
Three calls. That's the whole surface.
Evaluate
Should I accept this?
Screen a candidate fact against the subject's history before it's ever recorded. Get an allow, flag, review, or block verdict, with a traceable explanation.
Attest
Record it.
Write the fact to the ledger and get back a receipt — a hash, a sequence number, and the signed checkpoint it commits to.
Verify
Prove it, later.
Anyone holding a receipt and the public key can independently confirm the fact is in the ledger and history was never rewritten.
Built for regulated data
Wherever a wrong number has real consequences
One platform, purpose-built for any domain where you need to prove a record is accurate and untampered — not just stored.
Vehicle history & resale
Odometer, ownership, and identity fields that must never quietly roll back or change once recorded.
Business licensing
Registration numbers and authorizations checked against independent sources before a licence is issued.
Healthcare records
Patient record integrity — prove a record hasn't been altered since the point of care.
Financial services
Screen new account or transaction data against a customer's own history before accepting it.
Supply chain custody
An unbroken, provable chain of custody as a batch or asset changes hands.
Public records
Citizen-facing credentials a third party can verify independently, without contacting the issuer.
Security & compliance
Built to survive procurement review
Encryption in transit & at rest
TLS on every connection, AES-256 at rest.
Cryptographic integrity
SHA-256 canonical hashing, Merkle inclusion & consistency proofs.
Data residency controls
Region-pinned deployments for regulated and sovereign customers.
POPIA & GDPR-aligned
Hashed-attribute mode keeps sensitive values out of our hands entirely.
Role-based access control
Scoped API keys, per-environment credentials, full audit logging.
Built toward SOC 2 & ISO 27001
Formal audits on our roadmap — ask us where we stand today.
Pricing
Start free. Pay for what you use.
Sandbox
Free
For building and testing
- ›1 sandbox ledger
- ›All rule types
- ›Community docs & support
Team
Usage-based
Pay for what you attest and evaluate
- ›Unlimited production ledgers
- ›All sources & connectors
- ›Standard support & SLA
Enterprise
Custom
For regulated & high-volume deployments
- ›Dedicated / region-locked infrastructure
- ›SSO, RBAC, audit exports
- ›Dedicated support & custom SLA
Questions
Frequently asked
No. There's no consensus, no tokens, no distributed validators. It's a Merkle-tree log with signed checkpoints — the same tamper-evidence properties Certificate Transparency uses, run as a managed service. You keep the receipts; you can independently verify we didn't rewrite history.
Provision your first ledger in five minutes.
Sandbox ledgers are free. Define a schema, send one record, and watch a rule catch a bad one — no infrastructure to stand up.