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_3PqB27pb94eava0yx3

Subscription · Pro plan · monthly

succeeded

Amount

€175.75

Method

Card · via Stripe

Created

2026-05-09 10:28:57

Customer

Otto Eriksson

cust_b940d727

Emailotto.eriksson@acme.example

IBAN hashiban-40a78a293b5f

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. 10:28:57
    tenant-gateisolation check passed tenant=acme-co · row.tenant_id matches session
    prev9872d3e2hash872d1788
  2. 10:28:57
    stripe.webhookverified signature, ingested pi_3PqB27pb94eava0yx3 · payment_intent.succeeded
    prev292700d6hash9872d3e2