Assay a collection
Paste a Solana collection, or any single NFT out of one. Touchstone reads its mint, its metadata account and the file that metadata points at, then scores eight things nobody can check by looking at a picture.
No wallet, no signature, nothing written.
Reading Mad Lads: the mint, the metadata account, the master edition, and the file the metadata points at.
Every assay is cached for half an hour and shared, so asking twice costs nothing and nobody is paying per click. The floor, where one is shown, comes from Magic Eden and is never part of the score: a fake copies the price signal first.