OSC Pro · Large Organization expansion

Add seats to your existing organization. Keep the same lifetime entitlement.

Additional Large Organization Seats cost $19.99 USD each and require an existing OSC Pro 250-seat Large Organization license. Verify the base entitlement first, choose the number of seats, then continue to the authorized checkout.

250-seat base required$19.99 per added seatPerpetual seat rightsNo standalone add-on licenses

Step 1 · Verify the existing entitlement

Verify license & choose seats

HashMo verifies the license against the OSC entitlement service. Your raw license key is used only for this verification request and is never placed in the checkout URL.

Existing OSC Pro Large Organization license key

The key must belong to an eligible OSC Pro Large Organization base purchase.

Organization name

Used as a confirmation/support label. The name itself does not prove entitlement.

Additional seats

One quantity adds one additional active-PC entitlement.

Verification does not charge your card or create seats. New seats are issued only after HashMo independently verifies a completed Additional Large Organization Seats payment.

How the expansion is protected

Gumroad handles payment. HashMo remains the licensing authority. Buying the add-on alone never creates a standalone OSC Pro license.

Each completed Additional Large Organization Seats purchase receives its own Gumroad license key. That purchase key represents exactly the added seats from that transaction. When an added seat is claimed on a PC, HashMo matches the verified purchase record, verifies the purchase with Gumroad again, and issues that device its own unique signed .osclic. The same expansion purchase key may claim only the number of seats purchased.

1 · Verify

Confirm the 250-seat base license

The license service checks the key against the canonical entitlement database without exposing purchaser information or using the organization name as proof.

2 · Authorize

Bind this checkout to the exact expansion

A short-lived authorization binds the verified base purchase to the requested quantity. The raw license key is not carried into Gumroad.

3 · Pay

Complete Additional Large Organization Seats checkout

The checkout quantity equals the number of additional seats. One quantity is one $19.99 USD seat.

4 · Fulfill

Verify payment again before issuing seats

HashMo checks the seller-authorized sale and authorization again, then appends exactly the paid number of seat entitlements once—even if a payment webhook retries.