zeronda
The friendly guide

Shared payments, explained.

Zeronda starts with evidence. Here is exactly what the beneficiary, sponsor and payment provider each do.

I’m a beneficiary I’m a sponsor
2 min read

Register an invoice

See what Zeronda stores, extracts and checks before anyone is asked to pay.

Open tutorial
3 min read

Review as a sponsor

Understand the evidence, validation caveat and hard invoice-total cap.

Open tutorial
2 min read

Know the privacy boundary

Learn which records are shared and which payment details remain inside Stripe.

Open tutorial
Tutorial 01

The amount comes from the invoice.

The beneficiary uploads the original file and names the intended sponsor. They do not type the amount they hope to receive.

  1. 1
    Store and identify

    The private file is signature-checked, hashed and entered into the invoice registry.

  2. 2
    Extract and compare

    Zeronda reads supplier, number, dates, currency and totals, then checks for exact and semantic duplicates.

  3. 3
    Invite only after checks

    Failed evidence is blocked. Passed evidence gets a private sponsor link.

MO
Invoice registered

AWS-2026-0831 · £462.18

↓
Private sponsor review

The invitation follows the sponsor’s work email.

£300of £462.18
Sponsor choice Balance left
Tutorial 02

A careful yes, invoice by invoice.

The sponsor reviews the original evidence and chooses any positive amount up to the remaining total. Zeronda cannot create Checkout for more.

Original evidenceThe source file stays beside the request.
Validation contextChecks help; they are not an authenticity guarantee.
Hard amount capCumulative funding cannot exceed the approved invoice balance.
Tutorial 03

Shared evidence. Private payment credentials.

The boundary is simple and predictable.

Both businesses can see Original invoice and extracted facts Sponsor decision and amount Safe Stripe payment status
Only Stripe receives Sponsor payment credential Billing details Payment authentication
Invoice evidenceRegistered and access-controlled

Payment details stay inside Stripe Checkout.

Common questions

Nothing hidden in the small print.

Does a passed check prove the invoice is genuine?+

No. It confirms the document passed the automated checks Zeronda ran. Sponsors still make their own decision.

Can the same invoice be submitted twice?+

Zeronda blocks exact-file and semantic duplicates for the beneficiary and logs every attempt. Corrected invoices need an explicit supersession path.

What if I was invited before signing up?+

Use the same work email. Requests attached to that normalized email appear in your sponsor inbox.

Does Zeronda store payment credentials?+

No. Stripe Checkout receives the sponsor’s test payment details. Zeronda stores safe provider references and outcomes.

Ready to feel the flow?Try the evidence-first fictional request.
Start the demo