# Sell outcome-based software | Spoolis for sellers Canonical HTML: https://spoolis.com/sellers. This page is also available in machine-readable Markdown. Sell outcomes: define and price the result, put a real guarantee behind it with Outcome Guarantees, and send accepted Outcomes to billing with a signed statement. ## The problem Define and price the result, put a real guarantee behind it, and send accepted Outcomes to billing with the proof attached. Every figure traces to a signed Outcome both sides can check. ## How it works Turn your contract into a definition both sides can check, and test the price against your own history before you publish it. Model what you can afford to promise, offer the guarantee, and see a miss coming while you can still fix it. Accepted units go to your billing in exact cents, with a statement behind every line. A dispute points at the record, not at you. ## What you get Every figure traces to a result both sides can verify, offline, with an open verifier. Your model or your reviewer decides. Spoolis records the verdict and its provenance without exposing how you score. The definition, the price and the statement sit on one page. Your buyer checks any line against the same record you bill from. No account needed. - [Outcome Pricing](/products/outcome-pricing) - [Outcome Guarantees](/products/outcome-guarantees) - [Outcome Acceptance](/products/outcome-acceptance)