Demo · synthetic dataThis is what a substrate-built fintech product looks like running. UI is interactive — click any payment, customer, or mandate to drill in. Data is synthetic but consistent across all views.

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Payment

pi_3PqBsqi6ie20cf8s5y

Subscription · Starter · monthly

succeeded

Amount

€5.53

Method

Card · via Stripe

Created

2026-05-09 03:39:30

Customer

Jonas Nieminen

cust_317e5968

Emailjonas.nieminen@acme.example

IBAN hashiban-8cf20e2b28e0

KYCverified

Tenantacme-co

Tenancy + posture

Tenantacme-co

Tenant-gate checkpassed

Stripe webhook signatureverified

Webhook replay window≤ 5 min · enforced

PCI-DSS scopeSAQ-A · no PAN

AI Act Art. 12 logimmutable append-only

Audit chain · 2 events for this payment

View full audit log →

Every event references the FNV-1a hash of the previous event in the global audit chain. Tampering with any event breaks the chain and is detected by the daily integrity job (next run 03:00 UTC).

  1. 03:39:30
    tenant-gateisolation check passed tenant=acme-co · row.tenant_id matches session
    prevd4b2180ehash6ee201d9
  2. 03:39:30
    stripe.webhookverified signature, ingested pi_3PqBsqi6ie20cf8s5y · payment_intent.succeeded
    prevb4acfd63hashd4b2180e