Proof on preprod - Simpuru

Proven on Cardano preprod: each path is a real transaction — simpuru.xyz

Every row is a Cardano preprod transaction. Explorer: https://preprod.cardanoscan.io/transaction/<tx>.

Instant

Step	Transaction	Notes
Pay the seller, get the file	`49659f72…`	2 tADA, content after 30.5 s
Same through MCP	`37edbd55…`	17 s, content hash matches
Paid, connection dropped, recovered without paying again	`fd0ce727…`	signed proof

Protected, honest seller

Step	Transaction
Lock into the escrow	`50a6adc6…`
Seller agent posts the result	`11e25013…`
Seller agent withdraws after the unlock time	`61eb7ffd…`

Protected, no delivery

Step	Transaction
Lock	`8c6d1572…`
The watcher refunds the buyer on its own	`9b789223…`

Protected, wrong file

Step	Transaction
Lock	`d7485072…`
Seller posts the hash of the wrong file	`ff8b418a…`
Buyer’s check: mismatch, dispute	`c1e28c30…`
The arbiter decides for the buyer and pays out	`7132086b…`

A person on the website

Step	Transaction	Notes
Protected buy from the Simpuru wallet	`0159485b…`	5 tADA into escrow, content on screen
Seller agent posts the result	`d34b1fd3…`
Seller agent withdraws	`f3f1d508…`
The creator is paid	`93775c58…`	5 − max(1.5, 10%) = 3.5 tADA
The owner withdraws the Simpuru wallet	`293721b3…`	7.8 tADA back to the signed-in wallet

An agent over the hosted MCP

Step	Transaction	Notes
Buy protected	`fc9db1e1…`	10 tADA in ~22 s, content hash matches
Seller agent posts the result	`acf5a3cd…`
Seller agent withdraws	`69eece05…`

Agent to agent through Sokosumi is on Agent to agent.