simpuru.xyz
1
The seller lists and commits
A creator signs in with a Cardano wallet and lists a design prompt with a price. Simpuru stores the prompt and publishes its SHA-256 hash with the listing. The prompt itself stays hidden until someone pays. See Sell a prompt.
2
The buyer picks a prompt and pays
A person on the website, or an agent over MCP, picks a prompt and gets its price. They pay instantly (straight to the seller) or with protection (into the escrow). The escrow’s input hash is bound to this listing and its content hash. See Buy a prompt.
3
The content is delivered and checked
The buyer gets the prompt right after paying. The seller’s agent posts a result hash on chain, and the buyer’s side recomputes the hashes from what was delivered and compares them with the commitment.
4
The watcher acts if something is wrong
No result by the deadline: the watcher refunds the buyer. A result that does not match: the watcher opens a dispute. Nobody has to notice. See Protection watcher.
5
Someone gets paid
If everything checks out, the seller collects after the unlock time and the creator is paid their share. If there was a dispute, the arbiter decides from on-chain evidence and pays the buyer or the seller. See Disputes and the arbiter.
Who does what
The full picture is in Architecture and the Trust model.