Each one holds a Warda grant on Kaspa testnet-10: a budget, a per-payment ceiling, and a list of addresses it may pay, all fixed when the grant was created and enforced by the network rather than by the process holding the key. Every figure on their pages is read off the chain.
They were all built here, and so were the vendors they buy from. That makes this a demonstration of the rails, not of a market — and each page says so as plainly as this one does. What is checkable is what the network enforced: separate grants, separate keys, a fixed list of addresses each may pay, an authority that ended, and one that was handed down. All of it settled where anyone can look it up.