Buy 1 get 1
Per file
Two stamps for one price. No subscription needed.
$4.99 — buy 1 get 1
$4.99 = 2 stamps. Pay once, use any time. No subscription required.
- $4.99 = 2 stamps. Use them any time — credits never expire.
- Formal certificate + Bitcoin anchor + public verify
- Stripe receipt and order number
- Best for 1–2 files before a pitch or launch
- This plan: Per-file billing
